Design of Machine Elements syllabus
PCC-303-MEC · Third Year Mechanical Engineering, SPPU 2024 pattern. Every unit, the marks scheme, course outcomes and books, copied from the official syllabus PDF.
Unit-wise syllabus
Fundamentals of Machine Design and Material Selection
7 hoursSelection of materials and factor of safety, Service factor, Design of hand / foot lever, lever for safety valve, bell crank lever, Design of components subjected to eccentric loading., Design process , Design considerations, Engineering materials and their properties, Stress concentration, Static and fluctuating loads.
Design of Shafts, Keys and Couplings
7 hoursShaft design on the Strength basis, torsional rigidity basis and lateral rigidity basis, Design of shaft as per A.S.M.E. code. Design of square and rectangular keys, Kennedy key and splines. Design of Flange Coupling and Bushed-Pin Flexible Coupling.
Design of Mechanical Joints
8 hoursIntroduction to threaded joints, Bolts of uniform strength, locking devices, eccentrically loaded bolted joint in shear, Eccentric load perpendicular and parallel to axis of bolt, Eccentric load on circular base. Applications of joints in mechanical systems Introduction to welded joints, Strength of butt, parallel and transverse fillet welds, axially loaded unsymmetrical welded joints, Eccentric load in plane of welds, Welded joints subjected to bending and torsional moments. Design of cotter and knuckle joints
Design of Springs and Mechanical Components under Variable
8 hoursLoads Springs: Types and applications of springs, Stress and deflection equations for helical compression Springs, Springs in series and parallel, Design of helical springs, concentric helical springs, surge in spring, Design of Multi-leaf springs, Nipping of Leaf springs, Shot Peening. Analysis of machine elements under variable loads: Fatigue Failure, Stress-Life (S–N) Curve and Endurance Limit, Factors Affecting Endurance Strength (Modifying Factors and Notch Sensitivity), Reversed Stress Concept, Fatigue Failure Theories: Soderberg, Goodman, and Gerber Criteria, Modified Goodman Diagram for Design Applications, Design for Finite and Infinite Life, Cumulative Damage in Fatigue, Fatigue Design Under Combined Stresses (Theoretical Approach)
Design of Power Screw
8 hoursTerminology of Power Screw, Torque analysis and Design of power screws with square and trapezoidal threads, Collar friction torque, Self-locking screw, Efficiency of square threaded screw, Efficiency of selflocking screw, Design of screw, nuts and C-Clamp. Design of screw jack, Differential and Compound Screw and Re-circulating Ball Screw (Theoretical treatment only).
Marks and credits
| Head | Marks | Credit |
|---|---|---|
| CCE (continuous comprehensive evaluation) | 30 | 4 |
| End-semester exam | 70 |
Prerequisite: The basics of material elastic behavior, stress, strain, its relationship, failure modes, different theories of failure and its applications. The design cycle, basis of design considerations like strength, rigidity, manufacture, assembly and cost, standards and codes. The preferred sizes and series, tolerances and types of fits. Construction of SMD and BMD. Roots of equations, Interpolation rule..
Course outcomes
- CO1DESIGN levers and components subjected to eccentric loading by selecting appropriate material.
- CO2DESIGN shafts, keys and couplings under different loading conditions.
- CO3EVALUATE the stresses developed in the different type of welded and threaded joints.
- CO4APPLY the design procedure for different types of springs and EVALUATE dimensions of machine components under fluctuating loads.
- CO5ANALYZE different stresses developed in power screws and APPLY those in the procedure to design screw jack.
Books
Text books
- : 1 Bhandari V.B., Design of Machine Elements, Tata McGraw Hill Publication Co. Ltd. 2 Shigley J.E. and Mischke C.R., Mechanical Engineering Design, McGraw Hill Publication Co. Ltd.
Reference books
- : 1 Spotts M.F. and Shoup T.E., Design of Machine Elements, Prentice Hall International.
- Juvinal R.C., Fundamentals of Machine Components Design, John Wiley and Sons.
- Black P.H. and O. Eugene Adams, Machine Design, McGraw Hill Book Co. Inc.
- Willium C. Orthwein, Machine Components Design, West Publishing Co. and Jaico Publications House.
- Hall A.S., Holowenko A.R. and Laughlin H.G, Theory and Problems of Machine Design, Schaum’s Outline Series.
- C. S. Sharma and Kamlesh Purohit, Design of Machine Elements, PHI Learing Pvt. Ltd.
- D. K. Aggarwal & P. C. Sharma, Machine Design, S.K Kataria and Sons.
- P. C. Gope, Machine Design: Fundamentals and Applications, PHI Learing Pvt. Ltd.
- Design Data - P.S.G. College of Technology, Coimbatore.
- K. Mahadevan, K. Balveera Reddy, Design Data Handbook for Mechanical Engineers, CBS Publishers.
FAQ
How many units are in Design of Machine Elements?
Design of Machine Elements (PCC-303-MEC) has 5 units: Unit I Fundamentals of Machine Design and Material Selection (7 h); Unit II Design of Shafts, Keys and Couplings (7 h); Unit III Design of Mechanical Joints (8 h); Unit IV Design of Springs and Mechanical Components under Variable (8 h); Unit V Design of Power Screw (8 h).
What is the marks scheme for Design of Machine Elements?
The official Mechanical Engineering 2024 pattern syllabus lists continuous comprehensive evaluation (CCE) for 30 marks and the end-semester exam for 70 marks, for 4 credits.
What should I know before Design of Machine Elements?
Prerequisite listed in the syllabus: The basics of material elastic behavior, stress, strain, its relationship, failure modes, different theories of failure and its applications. The design cycle, basis of design considerations like strength, rigidity, manufacture, assembly and cost, standards and codes. The preferred sizes and series, tolerances and types of fits. Construction of SMD and BMD. Roots of equations, Interpolation rule..