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RESEARCH PAPERS: Power Transmissions and Gearing Papers

Measurement of Torsional Vibration in Rotating Machinery

[+] Author and Article Information
J. M. Vance

Dept. of Mechanical Engineering, Texas A&M University, College Station, Tx

R. S. French

E.I. Dupont DeNemours & Co., Wilmington, DE

J. Mech., Trans., and Automation 108(4), 565-577 (Dec 01, 1986) (13 pages) doi:10.1115/1.3258771 History: Received June 15, 1984; Online November 19, 2009

Abstract

Five techniques for measurement of torsional vibration in a drive train are described, along with the advantages and disadvantages of each. Two laboratory test rigs, designed and constructed for experimental evaluation of various torsional vibration measurement techniques, are described. The measurement techniques investigated fall into three categories: a) those using signals from strain gages, b) those using signals from a magnetically transduced gear, and c) using signals optically transduced from a special tape applied to the shaft. One of the techniques described requires no specialized instrumentation other than a spectrum analyzer, which is now typically available in plants with rotating machinery. Another technique is capable of producing a detailed time history of torsional oscillations during acceleration of the drive train (i.e., startup), using a time interval measurement system. A comparison of results from the various techniques is given, and recommendations are made for several types of applications.

Copyright © 1986 by ASME
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