Bayesian reliability estimation method for CNC system based on the prior failure rate
The CNC system failure rate distillation function was deduced to adopt Bayes method, which used binomial probability distribution as the likelihood function kernels, and Beta distribution as the prior distribution. With the fully priori information, failure rate mean and variance was calculated, then the parameter in Beta distribution could be estimated. The 2-parameters Weibull distribution was the optimum fitting distribution of the CNC system failure probability distribution .The Shape parameter and size parameter of Weibull distribution could be estimated by using the failure rate gotten from Bayes formula, then the MTBF also could be estimated.
failure ratet bayes reliabilitye parameter estimation CNC system
Dazhang You Tang Xiaoqi Dazhang You
National Numerical Control System Engineering Research Center Huazhong of University Science and Tec Mechanic Engineering college Hubei University of technology Wuhan,China
国际会议
长沙
英文
742-744
2010-03-13（万方平台首次上网日期，不代表论文的发表时间）