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RESEARCH PAPERS

A Torsional Vibration Problem as Associated With Synchronous Motor Driven Machines

[+] Author and Article Information
R. N. Brown

Compressor Department, Allis-Chalmers Manufacturing Company, Milwaukee, Wis.

J. Eng. Power 82(3), 215-219 (Jul 01, 1960) (5 pages) doi:10.1115/1.3672768 History: Received July 13, 1959; Online January 10, 2012

Abstract

Certain component failures in synchronous-driven high-inertia rotating equipment may be traced to a phenomenon peculiar to the starting characteristic of a salient-pole synchronous motor: A synchronous motor contributes a pulsating torque during the starting cycle. Though this fact is well known in itself, it has not been associated with the effect it may have on a high inertia load. The pulsating torque may excite a torsional resonance, which will in turn induce very high stresses in the driven train members.

Copyright © 1960 by ASME
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