To design common machine elements and gain experience in solving design problems. To prepare professional quality solutions and communicate the results of analysis and design, effectively.
COURSE LEARNING OUTCOMES (CLO)
CLO-1: Describe designs of common machine elements like gears, bearings, shafts, belts and chains.(C5)
CLO-2: Evaluate the designs of machine elements related to transmission. (C5)
CLO-3: Select a case study related to transmission and explain its design, calculations and working in the form of report and presentation. (A3)
1. Spur, Helical, Bevel and Worm Gears – Ten Lectures
- Geometry and nomenclature of Spur, Helical, Bevel and Worm Gears
- Forces in Spur, Helical, worm and Bevel gears.
- Stress calculations in spur, helical and bevel gears.
- Material strength calculations for gears.
- Rating method in Wormsets.
2. Design of Flywheels – Three Lectures
- Energy variations in a rotating system
- Determining the flywheel inertia
- Stresses in flywheels
- Failure criteria
3. Rolling Element Bearings – Three Lectures
- Types of Rolling Element Bearings.
- Failure of Rolling Element Bearings.
- Selection of Rolling Element Bearings.
- Basic dynamic load rating
- Basic static load rating
- Combined radial and thrust loads
- Calculation procedures
4. Sliding Contact Bearings – Four Lectures
- Full-Film Lubrications
- Boundary Lubrications
- Hydrodynamic Theory of Lubrication
- Design of Hydrodynamic Bearings
5. Design of Clutch / Brakes – Five Lectures
- Different types of clutches and designing concepts
- Different types of brakes and designing concepts
6. Design of Power Screws – Three Lectures
- Introduction to power screws
- Stresses in power screws
- Efficiency of power screws
- Applications of power screws
7. Flexible Machine Elements – Four Lectures
- Introduction to belts
- Flat and round belt drives
- Flat metal belts
- V belts
- Roller chains
- Wire ropes