指数寿命分布多阶段可靠性增长决策研究

可靠性增长模型是可靠性增长决策的基础和关键,其在可靠性增长过程中有着重要作用。在故障延缓纠正模式下,对基于指数寿命分布的多阶段可靠性增长模型进行了研究。考虑到可靠度估计的不确定性,采用贝叶斯风险决策技术,通过期望效用函数量化可靠度的不确定性,并定义了停止可靠性增长试验的贝叶斯决策规则,最后给出了一个应用实例验证了方法的可行性。

Research on decision-making for the multistage reliability growth based on the exponential life distribution

The reliability growth model is the base of decision-making of reliability growth and is important in the process of reliability growth.The multistage reliability growth model of exponential life distribution is researched under the mode of failure lingering repair.Considering the uncertainty of the estimating reliability in the model,the theory of Bayes disk decision is used to solve the problem.The expected utility function is used to measure the uncertainty of the estimating reliability,and the Bayes decision rule for stopping reliability growth test is defined.In the end,an example is given to validate the feasibility of this method.