Design of Machine Elements for SPPU 19 Course (TE - SEM V - MECH- 302043) (END SEM) (Decode)

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Syllabus Design of Machine Elements - 302043 Credits Examination Scheme Theory 3 In-Semester 30 Marks Practical 1 End-Semester 70 Marks Oral 25 Marks Unit 1 : Design of Simple Machine Elements Factor of safety, Selection of Factor of Safety, Service factor, Design of Cotter joint, Knuckle joint, Design of hand / foot lever, lever for safety valve, bell crank lever, Design of components subjected to eccentric loading. (Chapter - 1) Unit 2 : Design of Shafts, Keys and Couplings Shaft 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. (Chapter - 2) Unit 3 : Design of Power Screws Terminology 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 self-locking screw, Design of screw, nuts and C-Clamp. Design of screw jack, Differential and Compound Screw and Re-circulating Ball Screw (Theoretical treatment only). (Chapter - 3 ) Unit 4 : Design against Fluctuating loads Stress concentration and its factors, Reduction of stress concentration factors, fluctuating stresses, fatigue failures, endurance limit, S-N curve, Notch sensitivity, Endurance limit, Endurance strength modifying factors, Reversed stresses - Design for Finite and Infinite life, Cumulative damage in fatigue failure, Soderberg, Gerber, Goodman Lines, Modified Goodman diagrams, Fatigue design under combined stresses:- (Theoretical treatment only.) (Chapter - 4) Unit 5 : Threaded and Welded joints Introduction 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. 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. (Chapters - 5, 6) Unit 6 : Design of 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. (Chapter - 7)

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Pages: 232 Edition: 2023 Vendors: Technical Publications