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2nd International Conference on Advances in Mechanical Engineering
ICAME-2016
📅 Date: 29th - 30th March 2016
🏫 Organized by: Amrutvahini College of Engineering, Sangamner
📖 Volume: VOLUME 3, SPECIAL ISSUE 1, MARCH 2016
Significance of Turbocharger on Performance of IC Engine: A Review
Professor. A.J. Gite, Professor. V.R.Lawande
Performance Characteristics Analysis of Jatropha-Diesel Blends in VCR Engine
Deepak Nibe, Nitin Tambe, Rakhmaji Gavahane, Omesh Raktate
Application of Biomass Gasifier for Agricultural Electrification in Developing Countries as India
G.D. Patil, S.R.Wagh, K.N. Shinde, T.N.Patil, S. K. Amrutkar
Effect of C.R. and load on Performance and Emission Parameters of VCR Diesel Engine
Prof. B.R.Varpe, Dr.Y.R.Kharde, Prof.N.H.Tambe
Wall Thickness Analysis of Vapour Liquid Separator
Mr. Yogesh B. Khule, Prof. Dipak S. Bajaj
The use of dimensional analysis and optimization of pneumatic transportation operations and operating parameter
Ashok K. Mishra
Development of Methodology for Selection of Best Tribological Parameters for Hermetic Reciprocating Compressor
Borkar V.V., Chhapkhane N.K.
Heat transfer enhancement by jet impingement within channel
Chandrakant Rahane
Role of Electronic Controls in evolution of Refrigeration and Air Conditioning system
Shubhangi Kotkar, Balbhim Bansode
Performance Evaluation of Vapour Compression System with R22 and Environment-Friendly Refrigerant
A.N. Korshetti, Dr.V.N.Raibhole, N.A. Kumbhar
Dropwise Condensation Heat Transfer Enhancement on Silver Coated Copper Surface using n-Heptane as Surfactant Additive
Ganesh B. Gore, N. V. Sali, Amrut B. Ghodake
Behaviour of Ferromagnetic Materials In a Magnetic Field of a Permanent Magnet (The Law of Static Magnetism)
Krinav Makwana
Pareto Optimization Using Lean Manufacturing System In Technical Institute
Kavita K Kripalani
Analysis of Process Parameters in Hobbing using Optimization Technique
S. V. Shewale, Prof. S. R. Suryawanshi
A Review on Wear Analysis of Wire Drawing Die
Zeeshan Pathan, Mahesh Harne
Sheet Metal Forming Simulation of Draw Panel Using FEM
A.S.Nasikkar, Prof. V.S.Aher
Spring Back Effect Analysis of Bracket Using Finite Element Analysis
Ravindra E. Gite, Kiran S. Phad, Dipak S. Bajaj
A Parametric Study of Additive Manufacturing Process
Er. H. P. Pathade, Dr. P. C. Kulkarni
Optimization of Process Parameters of Friction Stir Welding– Critical Review
Raktate Omesh, Dhananjay Dolas
Magnetic Mould Casting: Methodology and Comparison with Traditional Sand Casting Process
Vishal Sadade, AmitDhake, Nishad Dixit, Prof. S. P. Deshpande
On the Influence of Cutting Parameters on Machined Surface Flatness in Precision Turning of Nickel Alloy
Ketan A. Jagtap, Rajendra V. Rupvate, Sanjay P. Muley
Effect of Cutting Parameters on Surface Quality of Mild Steel (Grade A) in CNC Turning – A Case Study
Mr. Bombale Ravindra Ramesh, Prof. V. L. Kadlag, Prof. D. R. Mahajan
Awareness of Lean manufacturing in plastic pipe industries- a survey
Javed G. Khan and Dr. R.S Dalu
Design and Development of Stab-bar Assembly Machine
Pranit Purkar, Dhiraj Zatke, Khushal Suryawanshi, Chetan Shirole
Performance Evaluation of Cotton Seed Oil as a Lubricant
N L Gunjal, Prof. D S Bajaj, Prof. A K Mishra
Investigate the load carrying capacity of SAE 40 lubricating oils without using extreme pressure additives on four ball extreme pressure oil testing machine
Dighe Yogesh S, Pandharkar Ujjawala J
Experimental Investigation Of Mechanical Properties Of Glass Fiber/Epoxy Composites With Variable Volume Fraction
Mr. Vishal S. Jagadale, Prof. Laukik B. Raut
A Critical Review: Application of Epoxy-Non Metal Composite Material for Automobile Propeller Shaft
Mr. Prajit A. Man, Prof. Laukik B. Raut
Mechanical Characterization Of Carbon Fiber/Epoxy Composites With Variable Volume Fraction
Mr. Sachin M. Khomane, Prof. Laukik B. Raut
Thermo structural analysis of Disc brake rotor
Amit Shinde, Prof. Eknath Bayas, Kishor Dagale, Kishor Deshmukh
Static and Fatigue Behavior of Steel and Glass Epoxy Composite Leaf Spring of Light Motor Vehicle
M.B. Shirke
A Review Paper on Fault Detection of Worm Gearbox
Sagar B Ghodake, Prof. A. K. Mishra, Prof. A. V. Deokar
A Review on Effects of Filler materials on the Tribological Behaviour of PTFE Composites
Aher A.B., Nimbalkar S.R., Fargade S.C
Sliding Wear Behaviour of Al-Si-Ti Alloys Using Taguchi Method under Lubrication Condition
Ganpat B. Jambukar, Pravin B. Wakchaure, Ranjit U. Kadlag
Vibration Analysis of Tractor Seat on Flat Field With Different Accesories for Comfort Ride of a Driver
Prof. Mikhil K. Bhavsar, Prof. Vilas M. Mhaske
A Review on Design Developments in Bicycle
R G Dhamak, Prof. P S Nagare, Prof. A K Mishra
A Review on Friction and Wear Behaviour of Polymer
S P Thorat, Prof. V S Aher, Prof. A K Mishra
Tribological Investigation of Polyamide (PA66) Composites with and without Effect of Surface Texturing
Pendbhaje G. S, Aher V. S, Gadakh S. T, Mishra A. K
A Review on design, development, and analysis of compound die for Automobile component
Mr. Bhaskar F. Satpute, Prof. Mahesh S. Harne
Experimental Evaluation of Performance Parameters of Journal Bearing Operating in Boundary/ Mixed Lubrication Regimes
Pankaj D Shinde, P. N. Nagare
A Review on Tribological Wear Behaviour of Journal Bearing on PEEK Composite Material
Mr. M. G. Deshmukh, Prof. V. S. Aher
An Investigation In to Sliding Wear Behaviour of Polyoxymethylene on Surface Textured Counter Face
Gophane Madhav B., Prof Aher V.S., Prof. (Dr).G.J.VikhePatil
Fabrication of Jute-PP and Wood Stock-PP composites and Comparison of their Physico-Mechanical Properties
Mr. G.V.Mahajan, Prof. V. S. Aher
Active Vibration Suppression of Leaf Spring by using Piezoelectric Actuator
Khairnar N.D., Mhaske V.M, Aher V.S., Nagare P.N., Bajaj D.S.
Effect of Counter Surface Roughness on the Wear Mechanism of PTFE and PTFE Based Composites Liners in Aqueous Medium
P.S.Shivsharan, Bajaj D.S., A.K.Mishra
A Review on Effect of Surface Texturing on Tribological Behaviour of Polymer Composites
Navale R.A., Aher V.S., Nagare P.N., Bajaj D.S., Wakchaure P.B
Effects of Deep Cryogenic Treatment on Wear Behavior of D6 Tool Steel
Prof. R.H.Naravade, Prof. R.K.Belkar, Prof. D.S.Bajaj
Tribological Evaluation of Vegetable oils as a Multi-cylinder Engine lubricant
Mr. A. S. Kalhapure, Prof. V. M. Mhaske, Prof. D. S. Bajaj
A Comparative Study on Friction and Wear Behavior of PTFE Composites
Mr. P.D. Pansare, Prof. D. S. Bajaj
Modal Analysis of Spur Gear to Determine the Natural Frequencies and it’s effect over the Change in Material
Kadam G.N., Prof. D.S.Bajaj
Investigation of Wear and Load Carrying Capacity of Polyamide Composites for Gear Application
B.R.Ambre, D.S.Bajaj
Performance Analysis of Shock Mounts Using FEA
R.S.Aralikatti, V.Y.Patil
Analysis and Optimisation of Robot Pedestal Design using FEA
Ashwini R. Hagawane, Vijay L. Kadlag
Design and Modelling of 6 In 1 All – Nut Remover for Automobile Wheels
Amol Bhanage, Vijay Bhanage
Weight Optimization of the Gear Train – A Review
M.S. Navle, Dr. A. V. Damale
Optimization of Scorpio front suspension (W105) assembly line by using ECRS Principles
Shubham Kothavade, S.P. Deshpande
Design and fabrication of regenerative braking system
Chandrakant Rahane, Vaibhav Varpe
Detection of Internal cracks in exhaust tailpipe using FFT Analyzer
Ms. Pallavi G. Kulkarni, Prof. D. S. Chaudhary
Tractor Driven Soil Filtering Machine
Aniket Gadhave, Sanket Nirbhavane, Ashish Kothawade, Tejas Pardeshi, S. V. Dawange
To study Effect of Crack on Natural Frequency by using FEA
Mr. Ganesh G. Gade, Mr. AmolS.Awari, Mr. Sachin S. Kanawade
Abstract
Significance of Turbocharger on Performance of IC Engine: A Review
Professor. A.J. Gite, Professor. V.R.Lawande
Abstract: Turbochargers are used throughout the automotive industry as they can enhance the output of an internal combustion (IC) engine without the need to increase its cylinder capacity. The application of such a mechanical device enables automotive manufacturers to adopt smaller displacement engines, commonly known as "engine downsizing". Historically, turbochargers were often used to increase the potential of an already powerful IC engine. The emphasis today is to provide a feasible engineering solution to manufacturing economics and "greener" road vehicles. It is because of these reasons that turbochargers are now becoming more and more popular in automobile applications. The aim of this paper is to provide a review on the techniques used in turbo charging to increase the engine output and reduce the exhaust emission levels. Keywords: Intercooler, IC Engine, Turbocharger, Volumetric Efficiency.
Abstract
Performance Characteristics Analysis of Jatropha-Diesel Blends in VCR Engine
Deepak Nibe, Nitin Tambe, Rakhmaji Gavahane, Omesh Raktate
Abstract: The scarce and rapidly depleting conventional petroleum resources have promoted research for alternative fuels for internal combustion engines. Among various possible options, fuels derived from vegetable oils/animal fats present promising ''greener'' substitutes for fossil fuels. Vegetable oils, due to their agricultural origin, are able to reduce net CO2 emissions to the atmosphere along with import substitution of petroleum products. However, several operational and durability problems of using straight vegetable oils in diesel engines have been reported in the literature, which are because of their higher viscosity and low volatility compared to mineral diesel fuel. In the present study, experiments were conducted using mineral diesel and jatropha-diesel blends to study the emissions and performance characteristics of diesel engine. A single cylinder, four stroke, constant speed, water cooled, variable compression ratio engine was used for the experiments. The acquired data were analyzed for various parameters such as brake thermal e?ciency (BTE), brake power (BP), brake speci?c fuel consumption (BSFC), brake mean effective pressure (BMEP) and emissions such as CO2, CO and HC emissions. While operating the engine on jatropha-diesel blends, performance and emission parameters were found to be very close to mineral diesel for lower blend concentrations. Keywords: Jatropha, VCR Engine, Emissions, BTE, BSFC.
Abstract
Application of Biomass Gasifier for Agricultural Electrification in Developing Countries as India
G.D. Patil, S.R.Wagh, K.N. Shinde, T.N.Patil, S. K. Amrutkar
Abstract: Recently our world is facing energy crisis problem due to lack of fossil fuels like diesel, petrol etc. The available fossil fuels will supply energy up to maximum 25 years. So world is trying to find out another alternative which are available at least cost, easily available and energy obtained from new one is equivalent to that of fossil fuel. Also fossil fuel has a lot of pollution related problem. So the fuel which we are going to use to run the gasifier has a less pollution problem as compared to fossil fuel. So wood gasifier is a miracle which overcome all problems related with fossil fuel like limited energy storage, pollution effects etc. In simple words wood gasifier is producing producer gas which is equivalent to energy production using diesel and having calorific value in between 8000 to 10000 KJ/K. Gasifier consist of reactor, cyclone filter, wet scrubber, cotton filter, blower, blower to engine intake manifold gas carrying pipe. Hence we are going to use agro-waste as a fuel like ground-nut shells, rice husk, corns, cobs, baggage etc. which in turns run the pump of 3 to 5 HP which is affordable at least price to common farmer. Keywords: Fossil fuel, wood gasifier, rice husk, baggage, irrigation.
Abstract
Effect of C.R. and load on Performance and Emission Parameters of VCR Diesel Engine
Prof. B.R.Varpe, Dr.Y.R.Kharde, Prof.N.H.Tambe
Abstract: In this research paper experimentation is conducted for diesel fuel on Single cylinder 4 stroke VCR diesel Engine at various compression ratios (16,17, and 18) and variousloads(3 kg,6kg,9kg and 12kg) .Results analysis is done to study the effects of load and C.R. on performance parameters like BTE ,Mechanical efficiency and BSFC of the engine and emission parameters like CO,HC and NOx. Results shows that, engine gives better performance at higher load and higher C.R. as value of BTE is higher at higher load and higher CO and HC emissions are decreases with increase in load and C.R but NOx emissions are higher at higher load and higher values of C.R. Keywords: VCR Engine, Brake Thermal Efficiency, Brake Specific Fuel Consumption, Nitrogen Oxides.
Abstract
Wall Thickness Analysis of Vapour Liquid Separator
Mr. Yogesh B. Khule, Prof. Dipak S. Bajaj
Abstract: Objective of this work is design and modification in vapour liquid separator (VLS) used in distillery plant. The study of distillery wastewater consists of different types of wastewater from different sources and zero discharge system of distillery. Then study of membrane technology is done, which is used for purification of distillery wastewater. This study describes types of membrane, membrane modules, types of membrane techniques, and also effect of membrane bioreactors which are helpful for treatment of distillery wastewater. Membrane distillation technology is more costly, less efficient and requires frequent maintenance. By making changes in design of vapour liquid separator (VLS) wall thickness and modifying shape of the same system gives sufficient allowable design stresses. These results are validated using ANSYS software and objectives of this work are obtained. Keywords: Distillation process, vapour, VLS, wall thickness, stresses, vessel, etc.....
Abstract
The use of dimensional analysis and optimization of pneumatic transportation operations and operating parameter
Ashok K. Mishra
Abstract: An attempt has been made with the help of Buckingham p theorem to correlate different variables of pneumatic transportation. Different variable are grouped into dimensionless number using dimensional analysis. Therefore the variables are explained in group not an individual transport operating parameters. Keywords: Dimensional analysis, pneumatic transportation, sedimentation, Optimization.
Abstract
Development of Methodology for Selection of Best Tribological Parameters for Hermetic Reciprocating Compressor
Borkar V.V., Chhapkhane N.K.
Abstract: It is important to decide whether compressor is capable to take load or not. So for proper working of compressor lubrication system must be consistent in performance. To achieve such type of lubrication system we have to optimize lubrication parameters and factors contributing in lubrication. In hermetic compressor the selection of oil type, oil quantity, fit between bearing and shaft, material pair (shaft material), oil viscosity etc. are very important. The problem is occurred while selecting these parameters because these parameters are selected on the basis of trial and error method. There is no exact method to know which parameter has to be selected in order to get optimized performance of compressor. That's why we have to develop such methodology which will overcome above problem. In particular the methodology will be developed for best selection of tribological parameter for hermetic reciprocating compressor .This will overcome trial and error approach & it will give optimum tribological parameters. Keywords: Reciprocating Compressor, Tribological Parameters, Tare Test, Best Selection, Methodology.
Abstract
Heat transfer enhancement by jet impingement within channel
Chandrakant Rahane
Abstract: The paper presented on this study is to represent a scaled up model of jet impingement within channel using single array nozzle pattern. The motivation behind this experiment is that to achieve effective internal cooling and improve the thermal efficiency of gas turbine. The goal of this experiment is to optimize the heat transfer enhancement of the different impingement test sections. Two experimental cases for the analysis using flat test plate and dimple plate surface. The heat transfer rate is increased by making the dimple surfaces on the plate. In the similar way we can study effect of varying aspect ratio and inclination of the plate. For the single array three aspect ratios are 2.5, 3.3 and 4.6 with six reynolds numbers 5000, 6000, 7000, 8000, 9000 and 10000 are investigated. The test is also carried out for inclined test surface with 2.5?inclination. The exit of jets in three different outflow orientations from impingement channel creates different cross flow effects. However attention is focused on outflow passes out in both directions. Detailed local nusselt number distribution is presented and compared for each case. Span-wise averaged heat transfer coefficients are plotted and compared. Data analysis indicates that for the three aspect ratios, A/R=4.6 produces higher heat transfer coefficients, the varying diameter of dimples produces higher heat transfer coefficient at large reynolds number. Keywords: Jet impingement, heat transfer, dimples, aspect ratio, reynolds number, nusselt number.
Abstract
Role of Electronic Controls in evolution of Refrigeration and Air Conditioning system
Shubhangi Kotkar, Balbhim Bansode
Abstract: As we follow the history of the evolution of refrigeration and air conditioning systems electronics play a vital role in making system compact, energy efficient and smart to understand the application requirement. Though its base function -operate the system through electricity power is quite simple, this function is key to ensuring system operation and performance. Understanding this evolution we will go through the various aspect of electronic control of new era like saving of the previous energy through compressor inverter technology, use of smart sensing to improve the performance of the system and use of renewable energy in HVAC & R system. Keywords: HVAC & R, Inverter Technology, Smart sensing system, Energy efficiency, Solar refrigeration.
Abstract
Performance Evaluation of Vapour Compression System with R22 and Environment-Friendly Refrigerant
A.N. Korshetti, Dr.V.N.Raibhole, N.A. Kumbhar
Abstract: With increasing recognition of environmental protection, a great deal of attention has been devoted to the negative environmental effect of CFCs and HCFCs refrigerant. Based on scientific findings, regulatory requirements and market pressure, the governing selection criteria for the new alternative refrigerants are changing. New long term alternative refrigerant should have not only zero ODP but it should have low GWP value As per the research and scientific study of environmental pollution extensively, there is an noteworthy need to phase out R22 earlier than that prescribed by Montreal protocol. Any alternative to R22 has to possess all desirable properties of refrigerants like thermodynamic efficiency, non-flammable and non-toxic, thermal and chemical stability, compatibility and low cost. There are other concerns such as Ozone Depletion Potential (ODP) & Global Warming Potential (GWP) of a refrigerant. Vapour compression refrigeration system is used for many applications such as cooling the food items in the refrigerator like vegetables ( potato, tomato, etc), fruits (banana, palms, apples, etc) & Medicines, Pharmaticules, beverages, pickles and chutneys, processed mushrooms etc are required to be stored in the cold storages to meet the market demand basically those refrigeration system used refrigerant like R134a, R22, R410, R700C in various countries of the world however it is always tied out we use environment-friendly refrigerants the refrigerantsR134a, R22, R410, R700 facilities in As per the scientific study of environmental pollution extensively, there is an significant need to phase out R22 earlier than that prescribed by Montreal protocol. Any alternative to R22 has to possess all desirable properties of refrigerants like thermodynamic efficiency, non-flammable and non-toxic, thermal and chemical stability, compatibility and low cost. There are other concerns such as Ozone Depletion Potential (ODP) & Global Warming Potential (GWP) of a refrigerant. Worldwide many research activities are carried out to mitigate the till effects of Global Warming, Ozone layer depletion and climate changes. For the past 20 years efforts are made to phase out the production and consumption of Hydro Chloro-Fluorocarbon (HCFCs) and Chloro-Fluorocarbon (CFCs), as these chemicals are responsible for the depletion of the stratospheric ozone layer and used in refrigeration and air-conditioning industry. The Current literature review has indicated that to satisfy the objectives of International protocols, many research works are in finding out a suitable alternative refrigerant with low Global Warming Potential (GWP) compared with R22, minimizing the mass of refrigerant charge used in the system, enhance and ensure energy efficient system operation by adding intelligence to components and enhance the energy efficiency of the system. In that glance, retrofitting of existing R22 vapour compression system with Eco friendly refrigerant R290 is attempted in the present research work. Keywords: COP- Coefficient of Performance CFC-Chlorofluorocarbon ODP-Ozone Depletion Potential GWP-Global Warming Potentia, HCFC-Hidrochlorofluorocarbon R-Refrigerant.
Abstract
Dropwise Condensation Heat Transfer Enhancement on Silver Coated Copper Surface using n-Heptane as Surfactant Additive
Ganesh B. Gore, N. V. Sali, Amrut B. Ghodake
Abstract: Condensation is one of the most important phenomenons of the heat transfer. A condensation occurs only when a saturated or superheated vapour is brought in contact with surface temperature below the vapour saturated temperature. According to the geometry of appearance, condensation occurred may be either film wise or drop wise. In drop wise condensation, heat transfer coefficient is comparatively higher than that of the film wise condensation. But drop wise condensation is difficult to achieve and sustain over period of long time. It can be achieved by coating the surface and using surfactant additives. So, on the bare copper tube silver coating is done and n-Heptane is used as surfactant additive to enhance the condensation heat transfer coefficient. The additive concentration has been varied from 0 % to 2 % by weight in the steps of 0.4%. Enhancement up to 57% is obtained for the silver coated tube over the bare copper tube. Keywords: dropwise condensation, additive, n-Heptane, coating, condensation heat transfer
Abstract
Behaviour of Ferromagnetic Materials In a Magnetic Field of a Permanent Magnet (The Law of Static Magnetism)
Krinav Makwana
Abstract: This research paper gives information about behaviour of ferromagnetic materials (The given experiment in this paper is done by using "Iron" as a ferromagnetic material.) in a magnetic field of a permanent magnet. The word "Behaviour", in this paper is used for the characteristic of ferromagnetic materials to behave as a Magnet in a magnetic field of a permanent magnet. Keywords: Behaviour of ferromagnetic materials, discussion, experiment, friction & inertia, gravity, intensity of magnetization of a ferromagnetic material, magnetic field of a permanent magnet, results, the law of static magnetism.
Abstract
Pareto Optimization Using Lean Manufacturing System In Technical Institute
Kavita K Kripalani
Abstract: Pareto Optimization in an integrated management approach aims to continuously improve the performance of student's expectations in technical institute & in turn institutes gain in reputation & quality education is the main em-phasis of this paper. To accomplish this objective, some of the key factors that contribute to the success of technical institutes efforts are identified. These key factors are here termed as critical success factors (CSFs). The purpose of the present study is to identify and propose a list of "vital few" by using lean technology tool of Kaizen for the benefit of technical institute practitioners. A quality tool "Pareto analysis optimization" is used to sort and arrange the CSFs according to the order of criticality. A few vital CSFs are identified and reported. The results of this study will help in successful implementation of TQM program in technical institute where continuous drop in attendance of students are being reported & each work are presented in the end of the paper Keywords: Pareto Optimization; critical success factors (CSFs); top-management commitment; Pareto analysis; technical insti-tute.
Abstract
Topology and Shape Optimization of Reamer
Biswajit Karmakar
Abstract: Reaming is a process of improving the quality of already drilled holes by means of cutting tools called reamer A reamer is a rotating cutting tool generally of cylindrical shape which is used to enlarge and finish holes to accurate dimensions to previously formed hole. It is a multiple edge cutting tool having the cutting edge on its periphery. A reamer consists of three mean parts 1. Fluted section 2. Neck 3. Shank The fluted part consists of chamfer, starting taper, sizing section and back taper length. Chamfer length or bevel lead insures proper and easy entry of the reamer into the hole. The main cutting action of reamer is done by starting taper, the sizing section and to guide the reamers and also smooth or size the hole. The back taper reduces friction between reamers and the whole surface. The industrial relevance of bore holes with small diameters and high length-to-diameter ratios rises with the growing requirements on parts and the tendency of components for downsizing. Examples for components requiring deep holes with small diameters exist in the automotive industry; for the production of injectors for fuel injection as well as for medical and biomedical parts. Based on growing functional requirements, for example with the increase in injection pressure to improve the efficiency of the combustion process in diesel engines, the requirements on the surface integrity of bore holes also increase. To meet these requirements, an adaption of the deep hole drilling process is necessary. In this paper the influence of tool geometry, coating and cutting data on the bore hole quality and tool wear will be presented. An improvement in the efficiency of the cutting process requires high tool performance. For the tool performance the microscopic cutting edge shape is very important. By preparing the cutting edge the tool performance can be improved due to the reduction of the cutting edge chipping and the creation of a defined stable edge rounding. In this study, the influence of a cutting edge preparation on the deep hole drilling process is investigated. The aim is to increase the feed rate by a specific cutting edge design. Drilling is probably the most common machining operation applied to composites since components made out of composite materials are usually near net shaped and require only holes for assembly integration. Keywords: optimizing the reamer design stopping reamer breakage and tool cost reduction.
Abstract
Analysis of Process Parameters in Hobbing using Optimization Technique
S. V. Shewale, Prof. S. R. Suryawanshi
Abstract: In automobile industry gear manufacturing is highly important. To increase the production without sacrificing quality one of the most effective ways is by improving the substrate material hob. The influencing parameters for cutting process should be known and possible to control. Through the theoretical studies and experimental investigations of significant parameters such as feed, hob material, feed, surface finish, cost. A continuous process optimization is necessary to satisfy the customer demands. A basic approach in optimization of operation times, is changing the substrate material. Taguchi method can be used for selecting the design of experiments and suitable optimization method can be used to optimize the process. This research paper focuses on improving the productivity by using different cutter materials. Keywords: Optimization, Taguchi, Gear hobbing, Productivity.
Abstract
A Review on Wear Analysis of Wire Drawing Die
Zeeshan Pathan, Mahesh Harne
Abstract: The die is an important factor in the success of the drawing process. The influences of the die angle, reduction, aspect ratio of the die, interfacial friction and drawing velocity on the die geometry are studied. The study of die geometry is vital in determining the surface and mechanical properties of drawn wires, and consequently, their application. Drawing of wires is a well-known process and several manuscripts are recognizable looking at the scientific literature. Nevertheless many information are available from a mechanical point of view, today new needs related to process sustainability push toward a process redesign taking into account different criteria. Various factors affects the life of the die which includes drawing force, lubricant used, coolant used, preprocessing of wire rod, semi angle of die, die geometry, die material, die wear, material thinning and damage are considered building an optimization problem in which we can decide the role of each criterion in the operative scenario. Keywords: Semi Die Angle, Tribology, Hardness, Wear, Friction.
Abstract
Sheet Metal Forming Simulation of Draw Panel Using FEM
A.S.Nasikkar, Prof. V.S.Aher
Abstract: In Automobile industry sheet metal forming process are getting more complicated due to complex part geometries. In this Paper we have used simulation software to simulate the forming process before actually manufacturing of the tools. For this purpose commercial FEM simulation software autoform was used to simulate the draw component panel under study . The main objective was to avoid cracking and severe wrinkling which may result in the forming process..This defects occurring in sheet metal forming are bound to occur in the draw component . Conventionally these defects are reduced by varying the forming process conditions trial and error method. This trial and error method causes loss in terms of money and time which finally increases product development time . There are various parameters included in the forming process which affect the final products quality. The most effective process parameters are identified using FMEA and this are blank holder force, die entry radius and draw bead height . Combination of different values of these process parameters is done using Design of experiments (DOE) by Taguchi's orthogonal arrays in Minitab software. Thus trial and error methods are replaced by the virtual simulations of these trials using Finite Element Method (FEM) based software and optimization is carried out by using autoform software. This method will replace the need of industrial expertise and also save a lot of cost and time. The results of optimization are validated by actual formed component at industry using same optimized parameters. With help of simulations a stable forming process which did not yield cracks or severe wrinkling, was eventually found. Keywords: Sheet metal forming, Thinning, Finite element method, Design of experiments (DOE), Taguchi, Minitab
Abstract
Spring Back Effect Analysis of Bracket Using Finite Element Analysis
Ravindra E. Gite, Kiran S. Phad, Dipak S. Bajaj
Abstract: The most sensitive feature of the sheet metal forming is the elastic recovery during unloading, called spring back. Spring-back is a critical phenomenon which is caused by the elastic redistribution of the internal stresses after the removal of deforming forces. The spring back is affected by the factors such as sheet thickness, material properties, tooling geometry etc. In this paper the finite element analysis followed by the experimental validation is done to evaluate the spring back effect. The model of the bracket is modelled using solid works & further analysis is carried out using ANSYS. This paper highlights the effective use of finite element analysis technique to analyse the spring back effect in the sheet metal forming operation so as to maintain the correct die valley angle by considering the spring back effect. Various parameters such as die valley angle, punch nose radius, depth of deformation etc. are considered to evaluate the spring back effect. Keywords: Spring back, Sheet metal, Forming, Elastic Deformation.
Abstract
A Parametric Study of Additive Manufacturing Process
Er. H. P. Pathade, Dr. P. C. Kulkarni
Abstract: Additive manufacturing (AM) is a generic term for a number of technologies that enable fabrication of physical objects directly from CAD data sources. In contrast to classical methods of manufacturing such as milling and forging which are based on subtractive and formative principles respectively, these processes are based on additive principle for part fabrication. The biggest advantage of AM processes is that an entire 3-D (three-dimensional) consolidated assembly can be fabricated in a single setup without any tooling or human intervention; further, the part fabrication methodology is independent of the complexity of the part geometry. FDM has significant advantages in terms of elimination of expensive tooling, flexibility, and possibility of producing complex parts and shapes. The major limitation of this process is that performance of prototypes is sensitive to process parameter variation. Keywords: additive manufacturing, CAD, FDM, dimensional accuracy, surface roughness.
Abstract
Optimization of Process Parameters of Friction Stir Welding– Critical Review
Raktate Omesh, Dhananjay Dolas
Abstract: Friction stir welding (FSW) is a recent and effective solid state joining technique for joining similar and dissimilar metals. It is being used mostly in aerospace, rail, automotive and marine industries applications. Many researchers are currently working with different perspectives of this friction stir welding process for different combinations of materials. The general input process parameters are tool design, tool rotational speed, traverse speed, tilt angle, flow of material and axial force. And the output parameters are joint hardness, tensile strength, and yield strength. This paper compiles the optimization of input parameters tried by different researchers with different perspective. And suggest the best use and practice to be followed in this welding process. Keywords: Friction stir welding, process parameters, tool rotational speed, traverse speed, tilt angle, flow of material optimization.
Abstract
Die Design for Camshaft
Mr. D. J. Sangale, Prof. P. N. Nagare
Abstract: Forging is the manufacturing process which can formed desired metal of pieces with the help of pressure and forging equipments. Forging industry is the main partner of automotive sector. Aim of the forging parts are forming a metal, Maintain product quality, Reduce development cycle time and minimize production cost of the forging parts.Faster the production rate of complex shapes with least wastage of material are some of the other benefits of forging process. In this work used various types of methodological tools such as Press machine, Induction heater, Ingot, Die and Simufact software. In current design of die, camshaft yield percentage is 58.5%. An investigation is undertaken to optimize the process design of die for camshaft and control camshaft yield percentage. As well as the input weight for forging of camshaft is to be minimized using forging die design improvement, which will result in increasing the production rate and decrease in the cost of the part. This will lead to reduce overall cost of the process and camshaft. Keywords: Camshaft, Die, Forging, yield, Warm.
Abstract
Magnetic Mould Casting: Methodology and Comparison with Traditional Sand Casting Process
Vishal Sadade, AmitDhake, Nishad Dixit, Prof. S. P. Deshpande
Abstract: Casting is a manufacturing process, which is used directly or indirectly in almost every industry. It is a primary manufacturing process and has its effect on the properties of the resultant product. In this era there is a demand to innovate processes, which can reduce lead-time, reduce cost of production without compromising with the quality of the products and reduce ill effects on environment. Magnetic mould for casting (MMC) is an innovative process having a great potential to replace conventional casting methods due to various advantages associated with it. The setup of magnetic mould casting includes winding of copper wire such that it behaves like a solenoid with hollow cavity in which actual casting process is to be carried out. For making mould two cylinders are used, copper winding is done to outer cylinder and current is allowed to pass through the wire, this results in generation of magnetic field inside the cylinder. Ferrous powder is used as moulding material and thermocol as pattern material. The molten metal when poured, it replaces the pattern and takes its shape and once solidified it can be easily taken out of the mould. Magnetic mould casting reduces the time consumed for sand preparation, mould making and knocking required for casting removal by completely replacing sand with ferrous powder and use of magnetism. The process is eco-friendly as it eliminates the use of sand, successfully reduces the overall process time for casting and results in better properties too. Keywords: Magnetic Mould, Sand casting, ferrous powder, Time study, Properties.
Abstract
On the Influence of Cutting Parameters on Machined Surface Flatness in Precision Turning of Nickel Alloy
Ketan A. Jagtap, Rajendra V. Rupvate, Sanjay P. Muley
Abstract: Recent days Nickel material has increasing applications in the manufacturing of various components and structure due to their inherent properties like as hardness. Nickel alloys are extensively used in aerospace, marine, and nuclear power generation, chemical, petrochemical and process industries. Nickel is an adaptable element and will alloy with most metals. At present very a small number of researchers developed precision machining processes with their useful parameters for the production of highly precise Nickel products. Enhanced surface integrity parameters can be achieved by the CNC turning process than with conventional grinding techniques. Present paper focuses the need of finding out machining characteristics of Nickel using high quality machine tools like CNC precision turning and the experiments were conducted according to Taguchi DOE with L 9 OA. The output parameter as machined surface flatness is analysed by using ANOVA. Spindle speed is having dominating effect on final machined surface flatness and minimum surface flatness is achieved up to 2.6 µm. Keywords: Nickel, Precision Turning, Flatness, Taguchi DOE, ANOVA.
Abstract
Effect of Cutting Parameters on Surface Quality of Mild Steel (Grade A) in CNC Turning – A Case Study
Mr. Bombale Ravindra Ramesh, Prof. V. L. Kadlag, Prof. D. R. Mahajan
Abstract: surface quality is one of the prime requirements of customers for machined parts. the present work deals with the study of effect of cutting parameters on surface hardness of mild steel (m.s.) is-2062 grade-a in cnc turning under conventional cooling condition. taguchi method has been employed in the optimization of cutting parameters- such as speed, feed and depth of cut. the turning experiments under conventional cooling were planned as per taguchi's l9 orthogonal array (o.a.) which is designed with three levels of turning parameters. signal to noise (s/n ratios) were calculated to determine the optimal parameter levels and obtain the level of importance of the cutting parameters, respectively. validation tests with optimal levels of parameters were performed to demonstrate the effectiveness of taguchi optimization. the optimization results revealed that depth of cut plays important role in maximizing the hardness. Keywords: CNC Turning, Optimization, Orthogonal Array, Surface Hardness, Taguchi.
Abstract
Awareness of Lean manufacturing in plastic pipe industries- a survey
Javed G. Khan and Dr. R.S Dalu
Abstract: With the global trade agreements and global competitions among the manufacturers many sectors of manufacturing industries particularly, small scale companies have virtually collapsed. In view of the fact that Lean Manufacturing (LM) thinking enables manufacturers to lower the cost of production by transforming time spent on 'non-value adding' activities into 'value adding' activities. This paper presents the level of awareness about the lean manufacturing within the plastic pipe manufacturing industries. A field survey with a structured questionnaire, interviews and site visits were conducted to get necessary information from the respondents. Keywords: Lean manufacturing, implementation, awareness, survey, tools.
Abstract
Design and Development of Stab-bar Assembly Machine
Pranit Purkar, Dhiraj Zatke, Khushal Suryawanshi, Chetan Shirole
Abstract: We are trying to improve existing method of Link assembly and clamp assembly operation in the premises of Sharda Motor Pvt.Ltd. Nashik. In this project we discuss about working of link assembly machine and clamp assembly machine. This machine performs link connecting operation and clamp pressing operation respectively. Compared with traditional method, our new design machine has remarkable advantages. It provides high quality, less time and low cost route for operation of stab bar. The effect of stab bar assembly machine is a new machine which performs the same operation as that of those two machines. Also we discussed about parts of stab bar assembly machine, there drawings on solid edge, assembly and its function. This project basically concerned with design of a new machine which perform the require operation at one place so that customer will get right delivery. Keywords: Anti-roll bar (Stab bar), Suspension, pneumatic pressure, DED (Dual end drive).
Abstract
Performance Evaluation of Cotton Seed Oil as a Lubricant
N L Gunjal, Prof. D S Bajaj, Prof. A K Mishra
Abstract: Cotton seed oils have traditionally been applied in some uses but recent trends suggest their economic usefulness as industrial fluids. Increasing crude oil prices and emphasis on the development of renewable, environmentally friendly fluids have brought cotton seed oils to a place of importance. As environment pollution and health problem became more and more seriously concerned, the use of environmentally friendly lubricants is strongly supported by political parties, regional and local governments. The objective of this work is to determine the tribological properties of cotton seed oil & to determine the influence of lubricant on wear and pressure by using four ball tester machine. Further an attempt has been made to identify the influence of cottonseed oil in reducing the wear & chemical transformation. The performance of cottonseed oil is also being compared with commercial hydraulic oil. Keywords: EP- Extreme Pressure, AW-Anti Wear.
Abstract
Investigate the load carrying capacity of SAE 40 lubricating oils without using extreme pressure additives on four ball extreme pressure oil testing machine
Dighe Yogesh S, Pandharkar Ujjawala J
Abstract: Extreme pressure (EP) additives are used when components are operated under extreme pressure. This work studies the effect of base oils on the tribological performance of EP additives. The difference between the absorbability of the EP additives and that of base oils dominates the mutual compatibility and performance of the EP additive. When used, the EP additive forms a saturation layer on the rubbing surfaces. The concentration of EP additive in the saturation layer exceeds the additive concentration in the lubricants. Therefore, during operation, the protecting layer can reduce the contacting stress of rubbing surfaces by chemical and physical methods to prevent local plastic deformation from inducing serious wear. Under the harshest conditions, the immediate formation of films in a chemical reaction is important when plastic deformation of the contact region cannot be avoided. The high rate of formation of chemical films can prevent direct metal-to-metal contacts to reduce wear. A comparative account of performance of the tested compounds is presented on the basis of various tribological parameters such as initial seizure load, 2.5 s seizure delay load, weld load, mean Hertz load, flash temperature parameter, pressure wear index, friction coefficient (m) and wear scar diameter (d), etc. All the tested complexes have been found to possess significant Extreme Pressure (EP) efficiency under the experimental conditions of four ball test. In paper evaluated and investigated of tribological properties of SAE 60 lubricating oils without using extreme pressure additives. Keywords: Lubrication, wear, Extreme pressure (EP) additives, four ball extreme pressure tester, Additives.
Abstract
Experimental Investigation Of Mechanical Properties Of Glass Fiber/Epoxy Composites With Variable Volume Fraction
Mr. Vishal S. Jagadale, Prof. Laukik B. Raut
Abstract: This study deals with the experimental investigation of mechanical properties of glass fiber/epoxy composite material with variation in volume fraction of fiber in the composites. For manufacturing of composites combined hand layup and compression molding methods are used. The volume fraction of fiber is maintained about 40%, 50% & 60% in the total composition. With the help of experimental testing the mechanical properties such as tensile strength, shear strength. The results shows better mechanical properties with 50% of Volume fraction, however further increase in fiber content increases mechanical properties but composites starts delaminating. So at the end we got the material with 50:50 compositions is better for application with optimum strength. Keywords: composite materials, Volume Fraction, Mechanical properties, Delamination.
Abstract
A Critical Review: Application of Epoxy-Non Metal Composite Material for Automobile Propeller Shaft
Mr. Prajit A. Man, Prof. Laukik B. Raut
Abstract: Substituting composite structures for conventional metallic structures has many advantages because of higher specific stiffness and strength of composite materials. In the recent days, there is a huge demand for a light weight material such as fiber reinforced polymer composites seems to be a promising solution to this arising demand. These materials have gained attention due to their applications in the field of automotive, aerospace, sports goods, medicines and household appliances. Substituting composite structures for conventional metallic structures has many advantages because of higher specific stiffness and strength of composite materials. This study represents the work done by various researchers and their methodologies. Keywords: Conventional shaft, drive shaft, composite shaft, composite material.
Abstract
Mechanical Characterization Of Carbon Fiber/Epoxy Composites With Variable Volume Fraction
Mr. Sachin M. Khomane, Prof. Laukik B. Raut
Abstract: Substituting composite structures for conventional metallic structures has many advantages because of higher specific stiffness and strength of composite materials. In the recent days, there is a huge demand for a light weight material such as fibre reinforced polymer composites seems to be a promising solution to this arising demand. These materials have gained attention due to their applications in the field of automotive, aerospace, sports goods, medicines and household appliances. This work focus on mechanical characteristics of carbon epoxy material with volume fraction 0.4, 0.5, 0.6 etc., so that recommendation of carbon fibre for various applications will be possible as per its strength. Keywords: composite material, volume fraction, conventional structure, household appliances.
Abstract
Thermo structural analysis of Disc brake rotor
Amit Shinde, Prof. Eknath Bayas, Kishor Dagale, Kishor Deshmukh
Abstract: Disk brakes are widely used for reducing velocity for their characteristics of braking stability, controllability and their ability to provide a wide ranging torque. The frictional heat generated on the interface of rotor can cause high temperature, which leads to undesirable effects such as brake fade phenomena, local scoring, thermal cracking and thermoelastic instability. In the course of braking the parameters of the processes like load, temperature and conditions of contact vary with time So, to consider the effects of moving heat source with relative sliding speed variation a transient thermal analysis is performed for four seconds of braking duration to characterize the temperature fields of the solid rotor with appropriate thermal boundary conditions. For the present analysis of solid rotor, ANSYS is used as a FEA tool. Once the brake rotor temperature distribution is obtained a transient structural analysis is performed to predict the failure of the disk rotor. Keywords: Surface Texturing, Tribology, Dimples, Polyamide, HDPE, Wear, Friction.
Abstract
Concorde-2: An Overview
Suhas Mali, Yash Muthe, Vikram Kolhe
Abstract: Since last few decades, airoplanes have become the most prominent way of transportation even within countries. The most advanced form of these planes was Concorde which has given people an experience of travelling at a speed of sound in 1969, which lasted till 2003. Plane titled Concorde-2 was patented in USA by an airbus group company, which had claimed plane's speed to be four times speed of sound. This next version of plane seems to double that experience & excitement too. Concorde-2 will take people to an ultimate speed ever attained by an aircraft hence called as 'Ultra Sonic Airplane'. This Ultrasonic speed has made Journey from New York to London possible in just an Hour! This Significant reduction in time have also costed in reduction of passengers from 100 to 20 as compared to previous Concorde. Now whole world is excited to travel at this speed with Concorde-2 & most awaited for flying at a speed four times that of sound. Keywords: Concorde, Fuselage, Mach, Ultrasonic.
Abstract
Static and Fatigue Behavior of Steel and Glass Epoxy Composite Leaf Spring of Light Motor Vehicle
M.B. Shirke
Abstract: The automotive sector has heart enthusiastic interest for the replacement of steel leaf spring with that of glass fiber along with epoxy resin composite leaf spring. In this study the material selected is glass fibers reinforce plastic and Epoxy resin can be used which is more economical to reduce total cost of composite leaf spring. The objective is to reduce cost, weight that is capable of carrying given static external forces without failure. The constraints are stresses and displacements. In the present work the static analysis of the glass epoxy composite material is done experimentally and validates their result by using ANSYS 14.0.The stresses developed in the steel leaf spring is higher than that of composite leaf spring. According to the previous literature of SAE it is predicted that the fatigue life of steel leaf spring is up to 106(10, 00,000) cycles. In this work with help of ANSYS workbench 14.0 the fatigue life of the glass epoxy composite is predicted it is up to 109(1000000000)cycles which are higher than steel leaf spring. The weight of the composite leaf spring nearly 64.28%l lower than that of the steel leaf spring. Keywords: composite leaf spring,static analysis, fatigue life, FEA.
Abstract
A Review Paper on Fault Detection of Worm Gearbox
Sagar B Ghodake, Prof. A. K. Mishra, Prof. A. V. Deokar
Abstract: Diagnosis of worm gear defects is challenging and this is reflected in the limited number of publications. However, these gears are commonly used in many applications such as escalators, mills, and conveyors, and are expected to work 24 hours a day in the production system. Any failures with the gearboxes may introduce unwanted downtime, expensive repair, and even human casualties. Therefore it is essential to detect and diagnose faults in the initial stage. This paper aims to give insight on various diagnosis methods to detect the presence of naturally developed faults within worm gearboxes. This was undertaken in an attempt to identify the presence of defects within the worm gearboxes. It is shown that irrespective of the predominantly sliding motion of the gears, diagnosis of faults is feasible as long as the appropriate analysis technique is employed. Keywords: Worm Gearbox, Fault Detection, Vibration Analysis, Oil Analysis, Condition Monitoring.
Abstract
A Review on Effects of Filler materials on the Tribological Behaviour of PTFE Composites
Aher A.B., Nimbalkar S.R., Fargade S.C
Abstract: In this work an review and recent progress of PTFE and various fillers. PTFE is a thermoplastic polymer, which is a white solid at room temperature, with a density of about 2200 kg/m3. Its melting point is 600 K .Owing to its low co-efficient of friction. it is used for applications where sliding action of parts is needed: plain bearings, gears, slide plates, etc. The wear behaviour of polytetrafluroethylene filled with filler particles was studied on a pin on disc test rig. Solid lubricant composite materials were prepared by compression moulding technique. The parameters considered for the study were applied load, sliding speed and sliding distance and weight percentage of fillers. The experimental results indicate that the weight loss increases with increasing load, sliding speed and sliding distance, as expected. Sliding distance has more effect on weight loss followed by applied load. The dominant interactive wear mechanisms during sliding and its composites are discussed in this paper. The above four factors are selected on the basis of Effect-Cause analysis and literature survey. Keywords: polytetrafluroethylene (PTFE), Friction, Pin on Disc,
Abstract
Sliding Wear Behaviour of Al-Si-Ti Alloys Using Taguchi Method under Lubrication Condition
Ganpat B. Jambukar, Pravin B. Wakchaure, Ranjit U. Kadlag
Abstract: The present study deals with investigation relating to the influence of wear parameters like sliding speed, applied load and sliding distance on the sliding wear of aluminium silicon titanium alloys under lubrication condition. The design of experiment approach was employed to acquire data in controlled way using Taguchi method. A pin-on-disc apparatus was used to conduct the sliding wear test under lubrication condition. An orthogonal array, signal-to-noise ratio and analysis of variance were employed to investigate the wear behavior of aluminium and it's alloys. The mathematical model was obtained to determine the wear rate of the aluminium and it's alloys. Addition of titanium in aluminium silicon alloys modifies microstructure as well improves the tribological characteristics. Keywords: Al-Si-Ti Alloys, Wear; Orthogonal Array, ANOVA, Taguchi Method.
Abstract
Vibration Analysis of Tractor Seat on Flat Field With Different Accesories for Comfort Ride of a Driver
Prof. Mikhil K. Bhavsar, Prof. Vilas M. Mhaske
Abstract: Many farmers face the problem regarding low back pain. This is an important factor which affects the health of population. The Parliament of the European Community agreed that there should be some limiting exposure action values for health and safety requirements of exposure of workers for the risks from vibration. Many studies show that whole body vibration is responsible for low back pain and it can happen to any group of polpulation. Most of the tractor drivers complain about low back pain more than non-tractor drivers. In the present study, we collected data using FFT Analyzer. We attached the accelerometer below the driver seat of tractor by confirming to ISO standards. Then post analysis has been conducted in terms of rms accelerations & compared with ISO standards where it shows that measured values exceeded the health norms of ISO standards. The tractor seat is modified by passive type of suspension system for reducing vibration magnitude. Again tests were carried out on farm terrain for different accesories. The use of modified seat reduces the vibration amplitude within 'health guidance zone' specified by ISO 2631-1 in all farm terrains. Keywords: LBP, ISO, FFT analyzer, rms accelerations, vibration amplitude.
Abstract
A Review on Design Developments in Bicycle
R G Dhamak, Prof. P S Nagare, Prof. A K Mishra
Abstract: Bicycle is one of the most commonly used form of transportation in the world. It is two wheeled vehicle, powered by a rider and steered using a handle. It is considered as eco-friendlier and an economical mode of transport in the world. Existing form of bicycle is evolved from the developments in its past history. Research is carried on making the bicycle economical and more comfortable. In this review paper, various designs developed in the history of bicycle are described. This review paper summarizes an up-to-date progress in different methods for transmission of human power on the pedal to the rotation of the wheels and the major advantages and disadvantages of these transmission methods. It covers how the energy efficiency of the bicycle is calculated considering the case of a chain driven safety bicycle. It is intended to help readers to obtain a comprehensive review on design developments in bicycle. Keywords: Bicycle, Economy, Eco-Friendly, Human Power.
Abstract
A Review on Friction and Wear Behaviour of Polymer
S P Thorat, Prof. V S Aher, Prof. A K Mishra
Abstract: Energy used to overcome unwanted friction is causing millions of tons of CO2 emission per year. In passenger cars, for example, about a third of the entire fuel consumption is spent to overcome friction [1]. Since the early 1990 s it is realized that one potential way to reduce frictional losses is the improvement of the surface topography of sliding surfaces by micro-texturing. The aim of micro-texturing is either to increase or to decrease friction. Communicating textures, like channel so crossed channels are reported to do both, increase or decrease friction, depending on the tribological conditions. Furthermore, for non- communicating textures like dimples the effect to reduce friction is reported, especially under hydrodynamic lubrication conditions. When filler materials like carbon, graphite, glass fibres are added in the PTFE, a composite is formed which improves mechanical & thermal properties of that composite. It increases hardness and wear resistance, while the coefficient of friction is slightly affected and remains low. In this survey, we study various papers in which various methods & experiments were carried out for calculating friction & wear resistance of various compositions of polymers. So it is easy to understand properties & behaviour of polymers under various test conditions. Keywords: Composites, PTFE, friction, wear.
Abstract
Tribological Investigation of Polyamide (PA66) Composites with and without Effect of Surface Texturing
Pendbhaje G. S, Aher V. S, Gadakh S. T, Mishra A. K
Abstract: Significant improvement in load capacity, wear resistance, friction coefficient etc. of tribological mechanical components can be obtained by forming regular micro-surface structure in the form of micro-dimples on their surfaces. In the present investigation the effect of surface texturing on tribological properties of Polyamide (PA66) composite materials considering elliptical shape texture pattern with varying orientations so as to observe the comparative friction and wear behavior of Polyamide (PA66) composites with & without surface texturing on mating surface at dry & wet lubrication by using a pin-on-disc Tribometer. The results shows that the coefficient of friction varies considerably with surface texture patterns, some texture patterns shows a higher load carrying capacity & due to that negative coefficient of friction was observed. Scanning Electron Micrographs shows that wear of some textured surfaces was reduced compared with the non textured surface at both the lubricating conditions. The circumferentially oriented pattern shows better results as compared to radially oriented pattern. Keywords: Dimples; Surface Texturing; Tribometer.
Abstract
A Review on design, development, and analysis of compound die for Automobile component
Mr. Bhaskar F. Satpute, Prof. Mahesh S. Harne
Abstract: Compound die is a press tool of collective operations performed on the sheet metal. The various operations are carried out in a single stroke. The design of compound die is largely depends on material of sheet metal, thickness of sheet metal and complexity of design and operations. This press tool has significance like high rate of production and minimum per unit cost of product. In compound die the variety of operations are performed at common work station. In present thesis the intensions is given on quality improvement along with production rate. Some drawbacks like spring back effect can be compensated in designing of compound die. Keywords: Compound die, spring back effect, complexity of design, rate of production.
Abstract
Experimental Evaluation of Performance Parameters of Journal Bearing Operating in Boundary/ Mixed Lubrication Regimes
Pankaj D Shinde, P. N. Nagare
Abstract: The journal bearing is used to support the shaft. Hence it is necessary to evaluate the performance of journal bearing operating under the boundary or mixed lubrication regimes in boundary or mixed lubrication regimes as there is direct contact in boundary regime while it is partial contact in mixed lubrication regimes. As wear is considerably more in boundary or mixed lubrication regimes hence it is necessary to measure the wear experimentally. These performance parameters to be evaluated by using the experimental set-up to study the influence of various parameters such as Temperature, frictional torque, coefficient of friction of the journal bearing. Keywords: Journal Bearing, Boundary, Mixed Regimes.
Abstract
A Review on Tribological Wear Behaviour of Journal Bearing on PEEK Composite Material
Mr. M. G. Deshmukh, Prof. V. S. Aher
Abstract: The present experimental study work is aimed at developing a new material for industrial application from product quality and identification surveying sugar factory from nearby areas. It is from that conventional bearing material (gun metal) leads to high wear rate as well as high coefficient of friction. Now a day gun metal is widely used by bearing material but problem with that composite. It subjected to high wear rate that can reduce. Influences of test speed and load values on the friction and wear behaviour of PEEK composite. Friction and wear experiment wear run under ambient condition in a pin-on-disc arrangement. PEEK and its composites used in this investigated the friction coefficient decreases with the increasing load PEEK and composite showed a very low friction coefficient and wear rate increase in the normal applied load sliding distance decreases wear rate. While increasing applied load and sliding distance decreases wear rate with a PEEK and PTFE composite he coefficient of friction is decreases but the trends in wear performance is differ. The specific wear rate PEEK and PTFE composite inclusion followed wear rate continuously decreases for selecting composite. Worn surface wear investigated the friction coefficient and wear rate of PEEK composite decreases gradually with addition of fillers. Keywords: Wear, Friction, Journal Bearing, PEEK Composite.
Abstract
An Investigation In to Sliding Wear Behaviour of Polyoxymethylene on Surface Textured Counter Face
Gophane Madhav B., Prof Aher V.S., Prof. (Dr).G.J.VikhePatil
Abstract: Polymer and polymer composites have been increasingly used in various industrial applications such as aerospace automotive and chemical industries. This material provides high strength/weight ratio. In this work attention is given to investigate the effect of surface texturing on tribological properties of polymer composite material considering various conditions so as to observe the comparative friction and wear behavior of polymer composite with surface texturing on mating surface under varying surface texture density, surface texture depth, material and lubrication by using a pin on disc type wear tester at NTP. Experimental work is carried out by loads of 183.21 N at sliding velocity 0.12 m/s keeping this parameter constant. The test is carried out for material polyoxymethylene and its composite containing like glass fiber in dry and wet condition. In this work AISI 304 stainless steel two discs are used. One disc has plane surface on one side and other side having surface texturing and other disc has surface textured pattern on both sides. This test is carried out at ambient condition using a pin on disc Tribometer (TR-20LE).The result is tabulated and graphs are plotted for each material testing. From these graphs the effect of dimple depth and density at dry and wet sliding condition on coefficient of friction and specific wear rate of the material is studied. So for dry condition the coefficient of friction and wear of the material is higher than wet condition. Reduction is seen in wear rate and coefficient of friction for wet condition. As Dimple depth increase there is decrease in C.O.F and wear and Specific wear rate increases at dry sliding condition. The lowest coefficient of friction and wear obtained for POM + 30% G.F. from the 30% surface texturing density and Dimple depth is 50 micron at wet condition. SEM image shows that the wear of Polyoxymethylene + 30% G.F. surface is low as compared with other composite surface in wet lubricating conditions. Keywords: Composite material, Tribometer, Dimple depth, Dimple density, SEM analysis.
Abstract
Fabrication of Jute-PP and Wood Stock-PP composites and Comparison of their Physico-Mechanical Properties
Mr. G.V.Mahajan, Prof. V. S. Aher
Abstract: Natural fibers are being increasingly used to substitute artificial fibers in composites. It is important to know how the mechanical properties of these natural fiber composites are compare with those of the traditional fiber composites. The traditional fiber composites are currently being used in many applications that may not require such high-strength materials a lower strength jute fiber composite may be adequate. Natural fiber composites are currently being used in most automobile applications. The aim of this research is to determine whether these natural fiber composites possess the mechanical properties that would allow them to be used in same automobile interior applications.Here the polypropylene and jute fiber composites and polypropylene wood stock composites are fabricated through compression molding. The parts are tested for tensile test, flexural test, impact test, heat deflection temperature test flammability and water absorption test through four numbers of specimens (ASTM standards). The J-PP composite found to be better than that of WS-PP composites against all physico-mechanical properties. Keywords: Jute-PP, Woodstock-PP, Compression molding.
Abstract
Active Vibration Suppression of Leaf Spring by using Piezoelectric Actuator
Khairnar N.D., Mhaske V.M, Aher V.S., Nagare P.N., Bajaj D.S.
Abstract: An experimental work is conducted on a leaf spring which acts as cantilever smart beam with & without PZT patches, by interfacing the experimental setup. The free vibration of the mild steel, aluminium and GFRP composite beams were carried out by varying the initial displacement and then surface bonded piezoelectric i.e. Lead Zirconium Titanate PZT patches to counteract the vibration levels. An input voltage applied to the PZT in order to find out the settling time and the damping factor of the beams. The first four modes of the natural frequency of smart beams is determined at different position of an actuator from the fixed end of the structure, which are very close to the natural frequency determine by analytical method. There is increase in mass and stiffness of an experimental material, due to addition of the PZT patch on the surface of beam, which results in changes of its natural frequency. The optimization location or position of PZT on the surface is at center of beam length. The leaf spring vibrations signal were collected through a data acquisition system (FFT Analyzer) supported by OROS OX-3 series software. From collected data, post analysis was done and followed by simulation of results with the help of MAT lab software. Keywords: Leaf spring, Active Vibration, Accelerometer, FFT Analyzer, Lead-Zirconium-Titanate-PZT actuator.
Abstract
Effect of Counter Surface Roughness on the Wear Mechanism of PTFE and PTFE Based Composites Liners in Aqueous Medium
P.S.Shivsharan, Bajaj D.S., A.K.Mishra
Abstract: For the past years bearings that use a self-lubricating PTFE-based liner material which replace standard metal-to-metal greased bearings in many aerospace, marine, and hydroelectric applications. When designing a bearing all of the operating parameters including radial and axial loads/pressures, rotational velocity, frequency, operational cycles, and environmental conditions are evaluated and taken into account Polytetrafluoroethylene (PTFE) is an important engineering material. When rubbed or slid against a hard surface, PTFE exhibits a low coefficient of friction but a high rate of wear. These unique properties of the polymer have encouraged many mechanistic and physical examinations of the processes involved in the friction and wear of this polymer. When rubbed against a hard surface, the PTFE chain undergoes scission, creating active groups which chemically react with the counterface. This results in strong adhesion and a coherent transfer film. Experimental work has been carried out considering loads varying at a constant velocity against mirror finish and polished surface. The test has been carried out for four materials of PTFE and its composites in water lubricated condition against EN-24 Steel plates. Duration of each test conducted is one hour. To improve resistance to wear property of PTFE, Glass Fiber is added as a filler material by varying its percentage. Tests were carried out for investigation of tribological properties such as wear rate and coefficient of friction against different surface roughness of counter surface. The results are used to generate friction and wear maps of different value of roughness of counterface of different loads and a relationship between a loads, Surface texture and behavior of PTFE and its composites. Keywords: Surface Texturing, Tribology, Dimples, Polyamide, HDPE, Wear, Friction, Aqueous medium.
Abstract
A Review on Effect of Surface Texturing on Tribological Behaviour of Polymer Composites
Navale R.A., Aher V.S., Nagare P.N., Bajaj D.S., Wakchaure P.B
Abstract: Surface texturing is feasible option of surface engineering which results in improvement of tribological properties like coefficient of friction, wear resistance, load carrying capapcity etc.In this work attention is given to investigate the effect of surface texturing on tribological properties of polymer composite materials. It also consider effect of various conditions so as to observe the comparative friction and wear behavior of Polymer composite with surface texturing on mating surface under varying loads at varying velocity by using different wear tester like Pin-on-disk tribometer, Ring-on-disc friction testing, needle friction test etc. The test will be carried out for composite materials like Polyamide composites, PTFE composites, HDPE polyblends etc. in dry and wet condition. In this work AISI SS 304 stainless steel disc having surface textured pattern on it will be used as counterpart surface and tests will be carried out at ambient conditions. Keywords: Surface Texturing, Tribology, Dimples, Polyamide, HDPE, Wear, Friction
Abstract
Effects of Deep Cryogenic Treatment on Wear Behavior of D6 Tool Steel
Prof. R.H.Naravade, Prof. R.K.Belkar, Prof. D.S.Bajaj
Abstract: This experimental work intended to investigate the effects of cryogenic treatment on the wear behavior of D6 tool steel. For this purpose, the temperature was used -185oC as deep cryogenic temperature. The effects of cryogenic temperature (deep), cryogenic time (kept at cryogenic temperature for 36 hr) on the wear behavior of D6 tool steel were studied. The findings showed that the cryogenic treatment decreases the retained austenite and hence improves the wear resistance and hardness. Due to more homogenized carbide distribution as well as the elimination of the retained austenite, the deep cryogenic treatment demonstrated more improvement in wear resistance and hardness compared with the conventional heat-treatment. By increasing the keeping time at cryogenic temperatures, more retained austenite was transformed into martensite; thus, the wear resistance was improved and further hardness were observed. This experimental work also intended to investigate the role of multiple tempering before and after cryogenic treatment on friction and wear behaviour of D6 tool steel as classified by American Iron and Steel Institute (AISI). D6 tool steel is used for measuring tools, blanking dies, forming dies, coining dies, long punches, forming rolls, edging rolls, master tools, extrusion dies, drawing dies, moulds for pressing abrasive powders etc. The different combination of heat treatments like hardening (at 1020°C) for one hour, tempering (at 210°C) for two hours and deep cryogenic treatment (at -185°C) for 36 hours was done on D6 tool steel. Wear test were performed using pin-on-disc wear tester to which two different normal loads (3.1Kg and 5.1Kg) and two different velocities (1.5m/s and 2.5m/s) were applied. Hardness of specimens was measured by using Rockwell Hardness tester. Microstructural characterizations of the differently heat treated specimens have been done by image analyzer software with inverted microscope. The findings show that the cryogenic treatment improves the wear resistance and hardness of D6 tool steel. The results indicate that, in HCT specimens there was large reduction in the wear rate and markedly enhancement in wear resistance of the D6 tool steel. Keywords: AISI D6 tool steel, cryogenic treatment, wear rate and wear resistance.
Abstract
Tribological Evaluation of Vegetable oils as a Multi-cylinder Engine lubricant
Mr. A. S. Kalhapure, Prof. V. M. Mhaske, Prof. D. S. Bajaj
Abstract: Lubricants are essential machine elements, which are important for efficient transportation, industrial production and contribute greatly to energy savings and the fuel economy. But continued increasing environmental concerns forced to increase the usage of vegetable oil utilization in lubricants for many applications. The vegetable oils offer significant environmental benefits because of its inherent qualities like renewability, bio degradability. Also, from India's point of view, India has a great potential of producing vegetable oil based lubricants. Because of these, suitability of vegetable oils i.e. cottonseed oil and soya bean oil is checked as a lubricant for multi-cylinder engine. Four ball testing machine is used for experimentation as per ASTM D 4172 standard. Finally it is observed that combination of SAE 20W40 oil +10% by vol. cottonseed oil+0.5% by wt graphite is the best suitable lubricant for multi-cylinder engine. Keywords: Lubricant, vegetable oil, cottonseed oil, soya bean oil, ASTM D 4172.
Abstract
A Comparative Study on Friction and Wear Behavior of PTFE Composites
Mr. P.D. Pansare, Prof. D. S. Bajaj
Abstract: Polytetrafluroethylene (PTFE) is an important engineering material. When rubbed or slide against a hard surface, PTFE exhibits a low coefficient of friction but a high rate of wear. So to enhance the wear rate of PTFE, different fillers are added. In this study, the effect of load and sliding velocity on friction and wear of materials made of PTFE and PTFE composites with filler materials such as 25% carbon, 40% bronze, 15% glass fiber, 15% glass fiber + 5% MoS2 at wet condition are studied. The experimental work has performed on pin-on-disc friction and wear test rig and analyzed with the help of Design Expert software. The results of experiments are presented in tables and graphs which shows that the addition of carbon, bronze, glass filler to the pure PTFE decreases wear rate significantly and there is slight increase in coefficient of friction. The highest wear resistance was found for 15% glass fiber + 5% MoS2 filled PTFE followed by 35% carbon, 25% carbon, 15% glass fiber, 40% bronze and pure PTFE. Through this study, we can suggests the best suitable self lubricating material for sugarcane milling roller journal bearings to enhance the wear life. Scanning Electron Microscopy (SEM) was utilized to examine composite microstructures and study modes of failure. Keywords: Design of Experiment, Scanning Electron Microscopy (SEM), Polytetrafluroethylene (PTFE)
Abstract
Modal Analysis of Spur Gear to Determine the Natural Frequencies and it’s effect over the Change in Material
Kadam G.N., Prof. D.S.Bajaj
Abstract: Gearing is one of the most critical components in a mechanical power transmission system and in most industrial rotating machinery. In addition, the rapid shift in the industry from heavy industries such as ship building to industries such as automobile manufacture and office automation tools will necessitate are fined application of gear technology. Using the modal models design improvement can be predicted and the structure optimized. This project is not only to review the test procedure and system identification of modal analysis but discuss the main practical problems with which engineers, performing modal analysis on industrial structures are confronted on a daily basis. FEA has been used to predict the dynamical properties of the gear. Experimental modal analysis has been carried out to determine the natural frequencies of spur gear due to change in material properties. The followed approach based on the modal analysis concept. As gears are important elements in a variety of industrial or commercial applications such as machine tool, vehicles and turbines. Objective of this investigation is to reduce weight of gear. Weight reduction has been one the critical aspects of any design. It has substantial impact on vehicle performance, fuel efficiency and in turn reduces the emissions. Keywords: Spur gear, modal analysis, natural frequencies, weight reduction.
Abstract
Investigation of Wear and Load Carrying Capacity of Polyamide Composites for Gear Application
B.R.Ambre, D.S.Bajaj
Abstract: Plastic gears are widely used in mechanical devices such as photocopier machines, printers, automatic teller machines under oil-less conditions. Plastic gear materials undergo degradation from high temperature caused by accumulated heat which results in severe wear or early fracture. This wear can be reduced by using different composites of polymer material. Generally thermoplastic polymers like acetal polymer and nylon polymer are used for gear applications. The objective of this Dissertation work is to evaluate the influence of test speed and load on the wear behaviour of polyamide 66 reinforced with increasing amount of glass fibers under dry condition .Wear tests of PA66 against EN8 steel disc is carried out on pin on disc arrangement. Tribological test are performed at room temperature. Mechanical properties like tensile test and hardness test are investigated in accordance with ASTM standards. Scanning electron micrographs are used to analyze fracture morphologies. The wear loss of the composites are compared at different loads and sliding velocities. Keywords: Polyamide (PA66), Plastic Gears.
Abstract
Performance Analysis of Shock Mounts Using FEA
R.S.Aralikatti, V.Y.Patil
Abstract: The shock mounts are designed to withstand harsh environments, shock and vibration. Shock mounts are different elements to connect two units or to install one unit into a system. The design of these shock mounts is a result of the development considering the space, the technical characteristics and requirements (load, frequencies, amplitudes, maximum load, etc.) as well as the surrounding conditions. Finite Element Analysis plays important role in structural safety of machine components. Prior estimation of stress levels prevents catastrophic failure of structure. The earlier techniques of prototype testing using destructive techniques are replaced by computer based simulation. Due to the advances in Finite Element Techniques with fast processing computers, the designer has the flexibility of selecting suitable mechanism and material for the optimum design. Present work is on the shock absorber system used to safeguard the CPU frame of the Aircraft. The system is made of number of components, modeling is done in Catia-V5 and meshing is done in Hypermesh. Theoretical calculations have been carried out for the design. The shock loads will be applied on the system to check the stress condition. Based on the response improvements will be represented for comparison. Various shock mount configuration will be discussed in the project to select the best possible shock absorber system.
Abstract
Analysis and Optimisation of Robot Pedestal Design using FEA
Ashwini R. Hagawane, Vijay L. Kadlag
Abstract: Robots requires specialized supporting structure to accurately hold the work piece during the operations. Precision made robot table and robot platforms are standard capital equipment and are required in today's high technology manufacturing companies. Most robots are designed for specific functions within a custom environment for performing elevated tasks. Each robot usually requires its own custom manufactured robot pedestal, custom built to size and strength in order to ensure immobility while firmly supporting the robot. So robotic structures are challenging because of the involving of dynamic forces. These dynamic forces further amplify themselves during emergency stop operation. Therefore robot pedestal should be well designed for operative loads and dynamic loads using estops, and also for transportation loads. Objective of the project is to design and analysis of robotic pedestal and also optimizing the structural aspects of pedestal. Keywords: Finite Element Analysis (FEA), Vibrations, Optimisation, Case Study.
Abstract
Design and Modelling of 6 In 1 All – Nut Remover for Automobile Wheels
Amol Bhanage, Vijay Bhanage
Abstract: Automotive maintenance is one of the major parameter for keeping its life span. It includes mainly changed the punctured tire, has been always a difficult task. Every automotive manufacture provides tools such as L wrench and jack, but still using these tools requires skilled person. With the increment of the number of passenger cars on the road, the number of car's problem due to tire failure has increased. Often, the car is provided with tire wheel nuts remover and jack for instance spare tire replacement. Many passenger cars, SUV and heavy vehicles accessories manufacturer concentrates on producing wheel nut puller using a single tool to lose the nut one by one. Main problem they have still faced is longer time consumption and tedious work to do skilled worker. Therefore, it is crucial to have a tool that should be designed ergonomically, easy to handle, lightweight, requires small space and can perform a similar task in one time. In 2006, a tire nut removal with 114 pitch circle diameter has been developed to replace T-nut wrench. This tool can open four nuts in one time and the force utilization has been reduced. It will help the car owner to overcome the difficulty of tire replacement. Author already design, manufactured and tested, 5 in 1 nut remover with Pitch circle Diameter (PCD) 114.3mm with assistance of CATIA V5 and simulation by ANSYS 14.5. Testing also proved that all wheel nut removers could efficiently remove all nut simultaneously in 9 sec. All the cars having PCD 114.3 mm with five nuts can use this tool. This paper extending the previous worked done by author and focus on design, development and simulation work on six nuts wheel remover for automotive like Chevrolet Tavera, Land cruser, Fortuner, Pajero etc. Keywords: Automotive, 6 in 1 All-wheel Nut, Remover, Gear Design, Modelling.
Abstract
Weight Optimization of the Gear Train – A Review
M.S. Navle, Dr. A. V. Damale
Abstract: Gear trains are used to transmit the power in various industrial applications. For gear train, various conflicting and dependent parameters needs to be, analyzed during its design and manufacturing. The study of conflicting dependent parameters with various optimization tools is presented in this paper as review. Total number of research papers studied are thirty-six which are further grouped in five categories like design method used, software used etc. The design parameters are considered for optimization are face width, moduleand number of teeth on pinion and gear etc. The exhaustive literature review reviled that genetic algorithm is the most commonly used optimization technique for designing industrial gear train. Keywords: gear train, optimization, GA, PSO, SA.
Abstract
Optimization of Scorpio front suspension (W105) assembly line by using ECRS Principles
Shubham Kothavade, S.P. Deshpande
Abstract: In today's competitive manufacturing environment, companies are constantly looking for ways to improve in their production process. A new flow of assembly line is proposed for suspension assembly line. An assembly line of a Front Suspension of Mahindra Scorpio is to be optimized to increase the productivity. This paper presents the improvement of production rate and balance loss ratio of the manual assembly line. Using ECRS four principles (Eliminate, Combine, Rearrange and Simplify) minimize the idle time or the percentage of line balance loss. The result shows that cycle time of the assembly line is reduced from 56 seconds to 48 seconds and Production rate increased from 250 to 293 pieces per hour. Keywords: Assemble line, ECRS, work-study, balancing, optimization.
Abstract
Design and fabrication of regenerative braking system
Chandrakant Rahane, Vaibhav Varpe
Abstract: In recent years, increased concerns over the impact of the conventional car (ICE - Internal Combustion Engine) on the environment have led to renewed interest and advancement in the Electric Vehicle (EV). While the advancements in the EV technology have been able to overcome many of its initial limitations, the need to improve overall efficiency of the vehicle has led to the design of the regenerative braking system (RBS). The RBS will be used to convert the car's mechanical energy and also the heat that would have been lost during braking into electrical energy. The RBS would be controlled using a PWM (Pulse Width Modulation) signal generated from a microcontroller. The duty cycle of the PWM signal would in turn depend on the response to a variable resistor which will be used to model the conventional braking. A higher resistance would generate a PWM signal with a higher duty cycle and in turn, a higher braking intensity. Therefore by varying the resistor value, the braking intensity can also be varied. The motor to be used in this system will primarily be a DC Motor. We intend to switch to an induction motor later on as this is currently the norm in the BEV (Battery Electric Vehicle) industry.In other term to maximize the efficiency of the RBS, it is important that we store some of the energy that may have otherwise been wasted. To achieve this, we implement the use of large capacitors connected in parallel to store the energy. This energy could then be used to recharge the batteries of the Electric vehicle (EV). Keywords: Energy, flywheel, hybrid vehicle, regenerative braking.
Abstract
Detection of Internal cracks in exhaust tailpipe using FFT Analyzer
Ms. Pallavi G. Kulkarni, Prof. D. S. Chaudhary
Abstract: Any structure used for a particular application has to bear the stresses acting upon it. Earlier, when any structure failed, it had to be replaced by another structure having the same strength and characteristics. But today, due to the excessive competition in Market, the time consumed for the trial and error methods is much more and is directly proportional to loss. Hence, to avoid these kind of circumstances, we have different techniques to find flaws in structures used for different applications.In this paper, the internal cracks detection in a tailpipe is carried out using FFT Analyser inorder to check the strength and compatibility of the structure and ensure proper working of the system. Keywords: Exhaust tailpipe, internal cracks, FFT Analyzer.
Abstract
Tractor Driven Soil Filtering Machine
Aniket Gadhave, Sanket Nirbhavane, Ashish Kothawade, Tejas Pardeshi, S. V. Dawange
Abstract: Agriculture in India is unique in itscharacteristics, where over 250 different crops are cultivated in its varied agro-climatic regions, unlike 2 5 to 30 crops grown in many of the developed nations of the world. Soil filtering is done so as to remove stones from farm which are not intended for farming operations. Also, soil filtering for harvesting potatoes is a major activity that involves digging potatoes from farms i.e. harvesting after they are fully grown. It can also be used for harvesting various crops, mainly potatoes, turmeric, ginger, etc. Potato is considered as one of the most important vegetable crops in India. Potato is cultivated for self-consumption and also f or commercial purposes. Potato harvesting as of today in the country is lab our intensive and tedious. Most Indian farmers harvest potato manually. Mechanization of potato harvesting by machine especially by tractor in large area will greatly reduce the drudgery involved and also complete the work in less time and is economically cheap. However, it was never introducing in India and hence a study on its performance is imperative to promote this technology. Soil filtering machine driven by tractor will thus introduce mechanized farming to reduce man power & time for each harvest. Thus, a soil filtering machine was design and developed which is driven by small tractor (less than 30HP). It is connected with the three-point hitch at the back of tractor. Power to run the device was taken from PTO shaft of tractor. The trans mission system was from PTO to oscillating net by, bevel gear box, shaft andpulleys. Computerized model of the machine was designed in Dassault Systems CATIA V5. The device was tested on the field with various advance speed. Keywords: Potato, Small tractor, Soil filtering, Design inCATIA.
Abstract
To study Effect of Crack on Natural Frequency by using FEA
Mr. Ganesh G. Gade, Mr. AmolS.Awari, Mr. Sachin S. Kanawade
Abstract: A crack in a structural member introduces local flexibility that would affect vibration response of the structure. The presence of damage leads to changes in some of the lower natural frequencies and mode shapes. Damage detection is one of the important aspects in structural engineering for safety reasons. The traditional methods of damage detection include visual inspection or instrumental evaluation.Main problem is to detect existence of a crack together with its location and depth in the structural member.The presence of cracks causes changes in the physical properties of a structure which introducesflexibility, and thus reducing the stiffness of the structure with an inherent reduction in modal natural frequencies. Consequently it leads to the change in the dynamic response of the beam. In this paper, a model for free vibration analysis of a beam with an open edge crack has been presented. Variations of natural frequencies due to crack at various locations and with varying crack depths have been studied. A parametric study has been carried out. The cracked beams with different boundary conditions have been analyzed. The results obtained by FEA. Keywords: Beam; Free vibration; Crack; Natural frequencies.
Abstract
Aerospace Structural Reinforcement
Alfred J Lazarus
Abstract: As an Aerospace Structures Engineer, the main apotheosis of this research was to reinforce a conventional wing box structure - idealization based using various FEA methodologies, along with various FEA packages used for modelling and reinforcing the structure which includes Strand 7, MSC Patran, and for performing the deformation on the mode of linear static analysis, determining post-buckling behaviour of the skin panel with respect to ribs and stringers supporting the skin subjected to pressurised loading, vibration analysis and Global Strength FEA with 'g' force on application of a point load on a single structural component. The wing box structure consists of the structural components such as front spar, rear spar, ribs, stringers, and the skin, which when integrated, and on reinforcement form the wing box structure of the wing of an aircraft. Here the wing box structure is taken as a whole to reinforce, and when performing the Structural Analysis the Front Spar is taken into consideration, which is a C- channel beam cross section, assumed to be as a Cantilever beam with a Point load application. The Solver is Linear Static - Structural analysis, to calculate the Bending Moment, Shear Force and deformation of the structural beam component on Strand 7, MSC Patran and Abaqus. Here as the beam element is taken into consideration for analysis, it will have 6 Degrees of freedom, whereas for the Skin, as it's a plate element, it will have 5 Degrees of Freedom, as they do not account for twisting stiffness normal to the plate surface, and the missing degree of freedom is called as 'Drilling Degree of Freedom'. Furthermore, the whole structural model is reinforced and a Global FEA analysis is done to check for the total deformation of the reinforced structure. Aircrafts and Rocket structures are capable of high-G manoeuvring, the reason which enables them to take tighter turns than the required target, and for this the structure needs to be strong enough to sustain these loads. When such a turn is entered, the structure is highly loaded by the inertia of the payload and the structural mass, and for this an 'Inertia Relief' solver is analysed, which is subjected to high '2g' to '6g' acceleration, which results in deformation of the structure, with a normal pressure force acting. The super structure is reinforced finally with the centre wing box structure and the fuselage along with the wings, after performing all these calculations. Sub-Space Iteration and Negative Eigenvalues including gravity force are taken into consideration. Keywords: Strand 7, MSC Patran, Abaqus, Global FEA Structural analysis.