4ME1-DESIGN OF MACHINE ELEMENTS |
Units: I |
Materials: Properties and IS coding of various materials, Selection of material from properties
and economic aspects.
Manufacturing aspects in Design : Selection of manufacturing processes on the basis of design
and economy, Influence of rate of production, standard size, Influence of limits, fits tolerances
and surface finish. Change in the shape of the designed element to facilitate its production,
Design of castings, working drawing.
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Units: II |
Design for strength: Allowable stresses, detailed discussion on factor of safety (factor of
ignorance): Stress concentration. Causes & mitigation. Introduction of various design
considerations like strength, stiffness, weight, cost, space etc. Concept of fatigue failures. Design
of machine elements subjected to direct stress, Pin, cotter and keyed joints, Design of screw
fastening. |
Units: III |
Design of members in Bending: Beams, levers and laminated springs.
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Units: IV |
Design of members in torsion : Shafts and shaft couplings.
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Units: V |
Design of shafts, brackets under combined stresses, Calculation of transverse & torsional
deflections. Screw fasteners subjected to eccentric loading.
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