A motor drives 50 hp to a shafting 1 1/2 in. diameter and 3 ft. long. If the maximum shearing stress produced by torsion is 39,628 psi and the total angle of twist in the shaft is 9.080, calculate the torque (based on angle of twist and shearing) and angular speed in rpm. G = 12 x 106 psi.

A motor drives 50 hp to a shafting 1 1/2 in. diameter and 3 ft. long. If the maximum shearing stress produced by torsion is 39,628 psi and the total angle of twist in the shaft is 9.080, calculate the torque (based on angle of twist and shearing) and angular speed in rpm. G = 12 x 106 psi.

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter3: Torsion

Section: Chapter Questions

Problem 3.7.3P: A motor driving a solid circular steel shaft with diameter d = 1.5 in, transmits 50 hp to a gear at...

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Concept explainers

Torsion

In mechanical engineering, torque, torsion, and twisting moment are three of the most important concepts which have different meanings. Torque is the consequence of a moment of a force that produces an angular acceleration in a body or induces rotational kinetic energy in a body. For instance, in an automobile, the power transmission shaft is a body that is always under rotation due to the external torque acting on it, this torque is created by the engine.

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