GCU中欠压保护电路的可靠性评估

Reliability Evaluation for Undervoltage Protection Circuit of GCU

通过对欠压保护电路的分析,用极大似然法和经验Bayes法讨论了系统可靠性评估问题,给出了系统失效率、可靠度和平均寿命等可靠性指标的估计.最后利用Monte-Carlo随机模拟方法对可靠性指标的经验Bayes估计和极大似然估计进行比较后表明,经验Bayes估计优于极大似然估计.

Through analyzing the undervoltage protection circuit,the reliability evaluation of the sys- tem is probed into with the application of maximum likelihood estimation(MLE) and empirical Bayes esti- mation(EBE),and reliability performances like the failure rate,degree of reliability and average life for the system are obtained.At last,with the help of computer Monte—Carlo random simulation method,the results by EBE and MLE are compared,showing that the former is superior to the latter.