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TECHNICAL BRIEFS

Preemptive Diagnosis of Minor Machine Failure by DDS Spectrum Analysis

[+] Author and Article Information
S. Y. Hong

Department of Mechanical and Materials Engineering, Wright State University, Dayton, OH 45435

J. Ni, S. M. Wu

Department of Mechanical Engineering and Applied Mechanics, The University of Michigan, Ann Arbor, MI 48109

J. Eng. Ind 116(1), 130-133 (Feb 01, 1994) (4 pages) doi:10.1115/1.2901803 History: Received December 01, 1991; Revised May 01, 1992; Online April 08, 2008

Abstract

A preemptive diagnostic system has been developed to detect minor machine failures before machine breakdown for a computer controlled robotic drilling end-effector. By using the Dynamic Data System (DDS) approach, a set of discrete time series data taken from the continuous vibration signal of the machine is analyzed to detect machine failure and to distinguish failures due to the spindle, gears, air motors, and ball bearings of the machine drive system. Experiments validate that the proposed diagnostic method can identify spindle, air motors, gear, and bearing defects in the Robotic Drilling Unit.

Copyright © 1994 by The American Society of Mechanical Engineers
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