This paper presents a new approach to multiple fault diagnosis for sheet metal fixtures using designated component analysis (DCA). DCA first defines a set of patterns based on product/process information, then finds the significance of these patterns from the measurement data and maps them to a particular set of faults. Existing diagnostics methods has been mainly developed for rigid-body-based 3-2-1 locating scheme. Here an locating scheme is considered since sheet metal parts are compliant. The proposed methodology integrates on-line measurement data, part geometry, fixture layout and sensor layout in detecting simultaneous multiple fixture faults. A diagnosability discussion for the different type of faults is presented. Finally, an application of the proposed method is presented through a computer simulation.
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February 2004
Technical Papers
Multiple Fault Diagnosis for Sheet Metal Fixtures Using Designated Component Analysis
Jaime A. Camelio,
Jaime A. Camelio
Department of Mechanical Engineering, The University of Michigan, Ann Arbor, MI 48109
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S. Jack Hu
S. Jack Hu
Department of Mechanical Engineering, The University of Michigan, Ann Arbor, MI 48109
Search for other works by this author on:
Jaime A. Camelio
Department of Mechanical Engineering, The University of Michigan, Ann Arbor, MI 48109
S. Jack Hu
Department of Mechanical Engineering, The University of Michigan, Ann Arbor, MI 48109
Contributed by the Manufacturing Engineering Division for publication in the JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING. Manuscript received June 2003. Associate Editor: E. C. DeMeter.
J. Manuf. Sci. Eng. Feb 2004, 126(1): 91-97 (7 pages)
Published Online: March 18, 2004
Article history
Received:
June 1, 2003
Online:
March 18, 2004
Citation
Camelio , J. A., and Hu, S. J. (March 18, 2004). "Multiple Fault Diagnosis for Sheet Metal Fixtures Using Designated Component Analysis ." ASME. J. Manuf. Sci. Eng. February 2004; 126(1): 91–97. https://doi.org/10.1115/1.1643076
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