Introduction definition; main criteria of machine design, loads on machine elements, concept of factor of safety and stress concentration review of the properties of main engineering materials, review of the working of engineering material (hot and cold working process), selection of materials. Introduction to the design of machine members for strength (volume and surface under static and dynamic load conditions), rigidity and stability. Concept fatigue strength, reference limit and the Soderberg equation. Joints; design of pin, knuckle joints, riveting joints, welded joints, key and splined joints. Threaded joints (classification and specification on drawing of bolted joints). Power transmissions;belt and rope drives, design of belt sheaves. Power screws, power transmission shafts (design for strength, rigidity and vibration minimization). Toothed gears; gear tooth terminology, fundamental law of gear forces, design of gears for volume and surface strength. Design portfolio; design assignments should involve full design calculations, assembly drawings and workshop drawings.
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