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UNIT –II Several Degrees Of Freedom 9 Multi degree systems – techniques of analysis such as Dunkerley, Rayleigh, Holzer, Matrix iteration, Transfer matrices and modal analysis UNIT- III Continuous And Torsional Vibration 9 Continuous systems Free and forced vibrations of bars for longitudinal, shear, torsional and transverse vibrations, Beams with attached masses rotor dynamics and FEM applications. UNIT- IV Non-Linear Vibrations 9 Non-linear vibrations, jump phenomenon and stability. Applications including self excited and parameter excited vibrations. UNIT- V Random Vibrations 9 Random vibrations – stationary and non-stationary, ergodic systems, response of single degree systems to random excitation. TOTAL : 45 periods REFERENCES 1. W. T. Thomson, “ Theory of Vibration” Kluwer Academic Pub; 4th edition , 1999. 2. TSE, Morse and Hinkel, “Mechanical Vibrations”, Chapman and Hall, 1991. 3. Den Hartong, “ Mechanical Vibrations”, McGraw Hill, 1986. 4. V.P.Singh, Dhanput Rai & Co., “Mechanical vibrations”. 1988. 5.S.Timoshenko, D.H.Young , “Vibrations Problems in Engineering”, D.Van Hostrand Company, Inc, Afiliated east-west press Pvt. Ltd.,1991. PCCA22 DESIGN FOR MANUFACTURING L T P C 3 0 0 3 UNIT- I Introduction 9 General design principles for manufacturability - strength and mechanical factors, mechanisms selection, evaluation method, Process capability - Feature tolerances - Geometric tolerances - Assembly limits – Datum features - Tolerance stacks UNIT- II Factors Influencing Form Design 9 Working principle, Material, Manufacture, Design - Possible solutions - Materials choice - Influence of materials on from design - from design of welded members, forgings and castings. UNIT –III Component Design-Machining Consideration 9 Design features to facilitate machining - drills - milling cutters - keyways - Doweling procedures, counter sunk screws - Reduction of machined area - simplification by separation - simplification by amalgamation - Design for machinability - Design for economy - Design for clampability - Design for accessibility - Design for assembly UNIT -IV Component Design - Casting Considerations 9 Redesign of castings based on parting line considerations - Minimizing core requirements, machined holes, redesign of cast members to obviate cores. UNIT –V Redesign For Manufacture And Case Studies 9 Identification of uneconomical design - Modifying the design - group technology - Computer Applications for DFMA TOTAL : 45 periods REFERENCES 1. Harry Peck, "Design for Manufacture", Pittman Publication, 1983. 2. Robert Matousek, "Engineering Design - A systematic approach", Blackie & sons Ltd., 1963. 3. James G. Bralla, "Hand Book of Product Design for Manufacturing", McGraw Hill Co., 1986. 4. Swift K.G., "Knowledge based design for manufacture, Kogan Page Ltd., 1987. PCCA23 COMPUTER INTEGRATED DESIGN L T P C 3 0 0 3 UNIT -I Introduction 9 Phases of design - Standardization and interchangeability of machine elements - Tolerances for process and function - Individual and group tolerances - Selection of fits for different design situations - Design for assembly and modular constructions - Concepts of integration. UNIT- II Shafting 9 Analysis and design of shafts for different applications - detailed design - preparation of production drawings -Integrated design of shaft, bearing and casing - Design for rigidity. UNIT- III Gears And Gear Boxes. 9 Principles of gear tooth action - Gear correction - Gear tooth failure modes - Stresses and loads – Component design of spur, helical, bevel and worm gears - Design for sub assembly - Integrated design of speed reducers and multispeed gear boxes - application of software packages. UNIT- IV Clutches 9 Integrated design of automobile clutches and over running clutches. UNIT- V Brakes 9 Dynamic and thermal aspects of vehicle braking - Integrated design of brakes for machine tools, automobiles and mechanical handling equipments TOTAL : 45 periods REFERENCES 1. Newcomb, T.P. and Spur, R.T. , "Automobile brakes ad braking systems", Chapman and Hall ,2nd Edition , 1975. 2. Juvinall, RL.C. ,"Fundamentals of Machine Component Design", John Wiley ,1983. 3. Maitra G.M. , "Hand Book for Gear Design", Tata McGraw Hill , 1985. 4. Shigley , J.E. ,"Mechanical Engineering Design ", McGraw Hill , 1986. PCCA24 COMPUTATIONAL FLUID DYNAMICS L T P C 3 0 0 3 UNIT –I Governing Differential Equation And Finite Difference Method 9 Classification, Initial and Boundary conditions, Initial and Boundary value problems. Finite difference method, Central, Forward, Backward difference, Uniform and non-uniform Grids, Numerical Errors, Grid Independence Test. UNIT- II Conduction Heat Transfer 9 Steady one-dimensional conduction, Two and Three dimensional steady state problems, Transient one dimensional problem, Two-dimensional Transient Problems. UNIT- III Incompressible Fluid Flow 9 Governing Equations, Stream Function - Vorticity method, Determination of pressure for viscous flow, SIMPLE Procedure of Patankar and Spalding, Computation of Boundary layer flow, Finite deference approach UNIT -IV 9 Steady One-Dimensional and Two-Dimensional Convection - Diffusion, Unsteady one-dimensional convection -Diffusion, Unsteady two-dimensional convection - Diffusion - Introduction to finite element method - Solution of steady heat conduction by FEM - Incompressible flow - Simulation by FEM. UNIT- V 9 Algebraic Models - One equation model, K-I Models, Standard and High and Low Reynolds number models,Prediction of fluid flow and heat transfer using standard codes. TOTAL : 45 periods REFERENCES 1. Muralidhar, K.,and Sundararajan,T., "Computational Fluid Flow and Heat Transfer", Narosa Publishing House ,New Delhi1995. 2. Ghoshdasdidar, P.S.,"Computer Simulation of flow and heat transfer" Tata McGraw-Hill Publishing Company Ltd., 1998. 3. Subas, V.Patankar "Numerical heat transfer fluid flow", Hemisphere Publishing Corporation, 1980. 4. Taylor, C and Hughes J.B.,Finite Element Programming of the Navier Stock Equation, Pineridge Press Ltd.,U.K.1981. 5. Anderson, D.A.,Tannehill, I.I., and Pletcher, R.H., Computational Fluid Mechanics and Heat Transfer, Hemishphere Publishing Corporation, New York, USA, 1984. 6. Fletcher, C.A.J.,"Computational Techniques for Fluid Dynamics 1" Fundamental and General Techniques,Springer-Verlag,1987. |