Reliability Evaluation of Fuel Servo-valve With Random Initial Degradation Values
The fuel servo-valve is a critical component of servo control system.So its reliability greatly affects the reliability of the entire engine system.So how to estimate the storage reliability of fuel servo-valve using degradation data is an urgent problem to be solved.Noticed that the initial value of the degradation data with high dispersity is not 0.We first establish the Wiener process model with random initial value.This initial value obeys normal distribution.Next,we estimate the model parameters by means of MLE(maximum likelihood estimation).In the end,storage reliability estimation was done in the light of certain batch of fuel servo-valve.
Hong-min FAN Xiao-bing MA
School of Reliability and Systems Engineering,Beihang University,Beijing,China
国际会议
上海
英文
388-394
2017-12-30(万方平台首次上网日期,不代表论文的发表时间)