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RESEARCH PAPERS

Detecting Gear Tooth Breakage Using Acoustic Emission: a Feasibility and Sensor Placement Study

[+] Author and Article Information
A. Singh

GM Powertrain Group, General Motors Corporation, 37350 Ecorse Road Romulus, Michigan 48174

D. R. Houser

Department of Mechanical Engineering, The Ohio State University, 208 W. 18th Avenue Columbus, Ohio 43210

S. Vijayakar

Advanced Numerical Solutions, 3554 Mark Twain Court, Hilliard, Ohio

J. Mech. Des 121(4), 587-593 (Dec 01, 1999) (7 pages) doi:10.1115/1.2829503 History: Received July 01, 1998; Revised July 01, 1999; Online December 11, 2007

Abstract

Vibration and debris monitoring methods are being increasingly used to detect gear tooth breakage. In this paper an alternate method of detecting gear tooth cracking is investigated. It is based on the phenomenon of acoustic emission (AE). The detectability of growing cracks using AE is established. Before this method can be used to detect crack growth in real systems, the transmissibility of these waves has to be studied. These waves have to propagate across a number of mechanical interfaces as they travel from the source to the sensor. The loss in strength of these waves at various interfaces commonly encountered in mechanical systems is studied in this paper.

Copyright © 1999 by The American Society of Mechanical Engineers
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