Diagnosis of Multiple Fixture Faults in Panel Assembly

[+] Author and Article Information
D. W. Apley

Department of Industrial Engineering, Texas A&M University, College Station, TX 77843-3131

J. Shi

Department of Industrial and Operations Engineering, The University of Michigan, Ann Arbor, MI 48109-2117

J. Manuf. Sci. Eng 120(4), 793-801 (Nov 01, 1998) (9 pages) doi:10.1115/1.2830222 History: Received May 01, 1996; Revised August 01, 1996; Online January 23, 2008


This paper presents a modeling procedure and diagnostic algorithm for fixture related faults in panel assembly. From geometric information about the panel and fixture, a fixture fault model can be constructed off-line. Combining the fault model with inline panel dimensional measurements, the algorithm is capable of detecting and classifying multiple fixture faults. The algorithm, which relies heavily on the fault model, is based on least squares estimation. Consequently, the test is of relatively simple form and is easily implemented and analyzed. Experimental results of applying the algorithm to an autobody assemble process are provided.

Copyright © 1998 by The American Society of Mechanical Engineers
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