Design of Machine and Structural Elements

At the end of this course, students will be able to: 1. Explain the theories of failure of machine components; 2. Analyse the loads on machine and structural elements; 3. Apply shear force, bending moment, torsion, bending stresses in designing machine and structural elements; 4. Design machine components such as belt drives, shafts, chain drives, gears; 5. Design beams and columns; 6. Select fasteners such as nut and bolts, studs, bearings, etc. in designing machines; and 7. Use computer software and empirical methods in designing machine and structural elements.urse Content

Design of machine elements: Theories of failure. Design of shafts, belt and pulley drives, gears, sprockets, bolts and nuts, keys and keyways; selection of bearings. Practical session: Use of computer software in machine design. Design of structural elements: Definitions. Hooke’s law. Stress and strain due to loading. Torsion of circular members. Shear force. Bending moment and bending stresses in beams with symmetrical and combined loadings. Stress and strain transformation equations. Mohr cycle. Elastic buckling of columns. Design of beams using empirical methods and computer software. Design of columns using empirical methods and computer software. Group design assignment of machine or structural elements or complete system.