Reliability Sensitivity Analyses for Oil Whip in Rotor-Bearing System

Chang Qing Su; Yi Yu Sun; Le Xin Li

doi:10.4028/www.scientific.net/AMR.538-541.1967

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Reliability Sensitivity Analyses for Oil Whip in Rotor-Bearing System
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Reliability Sensitivity Analyses for Oil Whip in Rotor-Bearing System

Abstract:

Oil whip phenomenon is the common fault in rotor-bearing system. The reason why oil whip happens often has been researched in high-speed rotor-bearing system. But in practice engineering, due to the requirement of work condition, oil whip cannot be avoided all the time in rotor-bearing system. The paper is based on the relation criterion of oil whip happens in rotor-bearing system, the reliability mode and system reliability of oil whip are defined, and the reliability analysis method for avoiding oil whip in rotor-bearing system is carried out. The effect on reliability sensitivity of random parameters is studied. Numerical results are also presented and discussed.