A shaft of 30 kW 710 r.p.m motor is 40 mm in diameter and is supported in bearings 500 mm apart. Calculate, (a) Stress due to bending if the armature weighing 10,000 N concentrated at the centre acting vertically (b) Stress due to torsion.

A shaft of 30 kW 710 r.p.m motor is 40 mm in diameter and is supported in bearings 500 mm apart. Calculate, (a) Stress due to bending if the armature weighing 10,000 N concentrated at the centre acting vertically (b) Stress due to torsion.

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter11: Columns

Section: Chapter Questions

Problem 11.2.4P: Repeat Problem 11.2-3 assuming that R= 10 kN · m/rad and L = 2 m.

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Concept explainers

Slope and Deflection

The slope in a deflected beam is described as an angle in radians made by the tangent of the section with the original axis of the beam. The deflection at any point on the axis of the beam is defined as the lateral displacement of the point before and after loading.

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A shaft of 30 kW 710 r.p.m motor is 40 mm in diameter and is supported in bearings 500 mm apart. Calculate,

(a) Stress due to bending if the armature weighing 10,000 N concentrated at the centre acting vertically

(b) Stress due to torsion.

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