Reliability assessment of centrifugal compressor impeller based on the Monte Carlo method
by Yifan Wang; Shujie Liu; Chi Liu; Hong-Chao Zhang
International Journal of Manufacturing Research (IJMR), Vol. 12, No. 2, 2017

Abstract: Reliability assessment of centrifugal compressor impellers has been a critical issue in industrial practice and application. In this paper, cycling life of the impeller obtained by the fatigue test is substituted into the S-N formula to calculate a group of parameter b in the formula. Then b is fitted by a three-parameter Weibull distribution. After that, Monte Carlo method is used for random sampling from the three-parameter Weibull distribution. Every b acquired by the sampling is substituted back into the S-N formula, by which a large group of values of the cycling life are calculated to fit its distribution. The reliability of the impeller under operating condition is then obtained to provide a critical reference for the health monitoring of the centrifugal compressor impeller online.

Online publication date: Tue, 25-Jul-2017

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