Fixture Failure Diagnosis for Autobody Assembly Using Pattern Recognition

[+] Author and Article Information
D. Ceglarek, J. Shi

S. M. Wu Manufacturing Research Center, Department of Mechanical Engineering and Applied Mechanics, The University of Michigan, Ann Arbor, MI 48109-2125

J. Eng. Ind 118(1), 55-66 (Feb 01, 1996) (12 pages) doi:10.1115/1.2803648 History: Received December 01, 1993; Revised August 01, 1994; Online January 17, 2008


In this paper, a fault diagnostic method is proposed for autobody assembly fixtures. This method uses measurement data to detect and isolate dimensional faults of part caused by fixture. The proposed method includes a predetermined variation pattern model and a fault mapping procedure. The variation pattern model is based on CAD information about the fixture geometry and location of the measurement points. This fault mapping procedure combines Principal Component Analysis with pattern recognition approach. Simulations and one case study illustrate the proposed method.

Copyright © 1996 by The American Society of Mechanical Engineers
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