Machine Design - I3. Unit-3
4. Unit-4
|
Machine Design - I SyllabusUNIT – I
General Considerations Selection of Materials, Design Stress, Factor of Safety, Stress concentration factor in tension, bending and torsion, theories of failures. Notch sensitivity, design stress for variable and repeated loads, fatigue stress concentration factor, endurance diagrams. Chain Drives Chain drives, roller chains, geometric relationships, dimensions of chain components polygonal effect, power rating of roller chains. UNIT – II Basic Elements Design Types of key and design, design of socket-spigot cotter joint, sleeve and cotter joint, gib and Cotter joint, design of Knuckle joint, design of splines. UNIT- III Threaded fasteners: Geometry of thread forms, terminology of screw threads and thread standards, specifications of steel bolts, initial tension, relation between bolt tension and torque, design of statically loaded tension joints, design of bolted joints due to eccentric loading. Power Screws Power screws, Force analysis-square and trapezoidal threads, Collar friction, Stresses in screw, coefficient of friction, efficiency of thread. UNIT – IV Riveted Joints Types of rivet heads, types of riveted joints, failure of riveted joint, strength of rivet joint, efficiency of riveted joint, design of riveted joint for boiler. Welded joint Types of welded joints, stresses in butt and fillet welds, strength of welded joints, location and dimension of weld design, eccentrically loaded joint, welded joint subjected to bending moment, design procedure, fillet welds under varying loads, stress relieving techniques. UNIT – V Shaft and Axles Transmission shaft, Design against static load, Design for strength, rigidity and stiffness, design under continuous loading for fatigue. Couplings Types of couplings, design of flange and flexible couplings, compression coupling, muff coupling. |
Home|Engineering|First Year|Practicals|Campus|Forum|Colleges|MYblog|About us
Designed by:Ashirwad Kumar