Similarity-based failure threshold determination for system residual life prediction

Biao Ma, Shufa Yan, Xu Wang, Jianhua Chen, Changsong Zheng

科研成果: 期刊稿件文章同行评审

6 引用 (Scopus)

摘要

An accurate determination of the system failure threshold is an essential requirement in achieving an appropriate system residual life prediction and a reasonable planned maintenance strategy optimization afterward for degradation systems. This paper pro-poses a failure threshold determination method based on quantitative measurement of the similarity between the operating system and the historical systems. The similarity is formulated by a weighted average function and then calculated by a convex quadratic formulation to minimizing the variance between the operating system and the historical systems. With an accurate determination of the system failure threshold in real-time, a better prediction of the residual life for the operating system is achieved. Finally, a real case study for several power-shift steering transmission systems monitored using oil spectral analysis is adopted to illustrate and numerically compare the improved performance of the proposed method.

源语言英语
页(从-至)520-529
页数10
期刊Eksploatacja i Niezawodnosc
22
3
DOI
出版状态已出版 - 2020

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