Fixture failure diagnosis for sheet metal assembly with consideration of measurement noise

  • Ceglarek D
  • Shi J
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Abstract

This paper expands previously developed assembly fixture fault diagnosis
methodology (Ceglarek and Shi, 1996) by considering the impact of
measurement noise on the diagnostic results. The proposed solution
provides a new analytical tool to address the diagnosability issue
during the assembly process design stage. An evaluation of fault
diagnosis index as a function of noise, fixture geometry and sensor
location is presented, The index is derived from the general class
covariance matrices describing tooling faults. Simulation based on
the real fixture is presented to illustrate the proposed method.

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Authors

  • D Ceglarek

  • J Shi

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