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Incipient Failure Detection in Bus Engine Component
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English
Abstract
This paper summarizes technical progress in a study of incipient fault detection in bus engines. The types of failures to which this method is applicable are those for which there is a gradual deterioration to failure over a relatively long time. In addition this method can also quickly isolate failed components. The fundamental basis of predicting such a fault is real time measurements of engine performance in the form of instantaneous brake torque and the nonuniformity in that torque.
For our studies a number of buses were instrumented for real time performance measurements in simulated route operation. A data base was established for those measurements from which the statistical model for predicting failure has been developed.
This paper explains the theory of the method, the instrumentation, the experimental results and the statistical model upon which failure prediction is based. The results of this study are applicable to an optimum strategy for maintenance scheduling.
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Citation
Ribbens, W. and Naaseh, M., "Incipient Failure Detection in Bus Engine Component," SAE Technical Paper 872264, 1987, https://doi.org/10.4271/872264.Also In
References
- “A Noncontacting Torque Sensor for the Internal Combustion Engine,” Ribbens W. B. SAE International Congress & Exposition Cobo Hall, Detroit, Mich. Feb. 23-27 1981 SAE 810155
- “Experimental Road Test of A Noncontacting Method of Measuring I-C Engien Torque Nonuniformity,” Ribbens W. B. SAE International Congress & Exposition Cobo Hall, Detroit, Mich. Feb. 27 Mar. 2 1984 SAE 840136
- “An On-line Engine Roughness Measurement Technique,” Citron S. Mihekc W. SAE International Congress & Exposition Cobo Hall, Detroit, Mich. Feb. 22 Mar. 2 1984 SAE 840136
- “A New Metric for Torque Nonuniformity,” Ribbens W. B. SAE Internatinal Congress & Exposition Cobo Hall, Detroit, Mich. Feb. 28 Mar. 4 1983 SAE 830425