Diagnostic System for Crashing and Damping Signals in Engine-Assembly Line

엔진 양산라인의 충격성 불량유형 신호 진단을 위한 진단시스템 개발

  • Received : 2010.12.12
  • Accepted : 2011.05.11
  • Published : 2011.08.01


We develop a diagnostic system to monitor failures in an engine-assembly line. Existing techniques such as sensory analysis, time domain analysis, frequency analysis, and statistical analysis have limitations in the diagnosis of engine-assembly failure when there are abnormal vibration waveforms (crashing and damping signals) during the assembly. We use a wavelet technique to deal with crashing and damping signals. We also implement a new technique for developing diagnostic rules from sensor data, and we demonstrate its validity.


Engine Assembly;Fault Diagnosis;Vibration Signal


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