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http://dx.doi.org/10.3795/KSME-A.2011.35.8.965

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

Oh, Se-Do (Industrial & Management Systems Engineering, Kyung Hee Univ.)
Kim, Young-Jin (Industrial & Management Systems Engineering, Kyung Hee Univ.)
Seo, Hae-Yun (Industrial & Management Systems Engineering, Kyung Hee Univ.)
Lee, Tae-Hwi (Psylogic)
Lee, Jae-Won (Psylogic)
Publication Information
Transactions of the Korean Society of Mechanical Engineers A / v.35, no.8, 2011 , pp. 965-970 More about this Journal
Abstract
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.
Keywords
Engine Assembly; Fault Diagnosis; Vibration Signal;
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