A hollow shaft of diameter ratio 3/5 is required to transmit 450 kW at 1200 rpm. The maximum torque is 1.3 Tmean. The shearing stress in the shaft must not exceed 60 MPa and the twist in a length of 2.5 m is limited to 1°. Calculate the minimum external diameter of the shaft. Take G = 80 GPa.

A hollow shaft of diameter ratio 3/5 is required to transmit 450 kW at 1200 rpm. The maximum torque is 1.3 Tmean. The shearing stress in the shaft must not exceed 60 MPa and the twist in a length of 2.5 m is limited to 1°. Calculate the minimum external diameter of the shaft. Take G = 80 GPa.

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 3.12.4P: The stepped shaft shown in the figure is required to transmit 600 kW of power at 400 rpm. The shaft...

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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.

Question

A hollow shaft of diameter ratio 3/5 is required to transmit 450 kW at 1200 rpm. The
maximum torque is 1.3 Tmean. The shearing stress in the shaft must not exceed 60
MPa and the twist in a length of 2.5 m is limited to 1°. Calculate the minimum external
diameter of the shaft. Take G = 80 GPa.

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