不同环境下含零失效数据的系统可靠性Bayes评估方法
Bayesian assessment of system reliability with zero-failure data in different environments
唐庆 1付尧 2郝威巍 1孔祥睿 3孙永全3
作者信息
- 1. 中国船舶集团有限公司综合技术经济研究院,北京 100081
- 2. 海军装备部装备保障大队,北京 100081
- 3. 哈尔滨理工大学测控技术与通信工程学院,哈尔滨 150080
- 折叠
摘要
针对船舶装备电子系统在研制阶段经历多种试验,且试验环境应力存在明显差异性及试验过程存在零失效的情况,基于电子系统失效率,提出了零失效情况下环境因子置信区间确定方法,并提出零失效情况下各阶段试验时间及故障数据的折合方式.构建了电子系统失效率的先验分布模型,利用Bayes方法融合试验信息给出失效率的点估计及置信限,方便后续的可靠性评估.并以某船舶电子系统为例,验证了可靠性评估方法的有效性,为船舶典型装备电子系统可靠性评估提供了参考.
Abstract
The electronic display and control system of ship equipment undergoes many kinds of tests in the development stage,and there are obvious differences in the stress of the test environment and zero failure in the test process.Based on the failure rate of the electronic display and control system,the method of determining the confidence interval of the environmental factor under the zero-failure condition is proposed,and the way of converting the test time and failure data of each stage under the zero-failure condition is also proposed.The priori distribution model of the failure rate of the electronic display and control system is constructed,and the Bayes method is used to integrate the test information to give the point estimate and confidence limit of the failure rate to facilitate the subsequent reliability assessment.The validity of the reliability assessment method is verified by taking the electronic display and control system of a ship as an example.A reference for the reliability assessment of the electronic display and control system of typical ship equipment is provided.
关键词
电子系统/零失效/环境因子/Bayes可靠性评估Key words
electronic system/zero failure/environmental factor/Bayes reliability assessment引用本文复制引用
基金项目
国防科工委基础项目()
黑龙江省自然科学基金资助项目(QC2016068)
出版年
2024
NETL
NSTL
维普
万方数据