摘要
详细介绍了比例风险模型,在参数估计时采用了极大似然估计方法,估计出模型中的参数,然后以可用度为要求,预测装备的故障率阈值,从而指导实施维修决策,并选择某发动机为例,利用比例风险模型对其进行了维修决策研究。
This paper firstly introduces proportional hazards model and estimates the parameters with maximum likelihood estimates.Then,predicts the fault rate under the requirement of availability,it enforces the maintenance decision-making.Finally,one kind of engine is as a case and proportional hazards model is used to make the research of maintenance decision-making.
出处
《装备制造技术》
2011年第12期10-11,共2页
Equipment Manufacturing Technology
关键词
发动机
旋转部件
比例风险模型
可用度
维修决策
engine
rotating components
proportional hazards model
availability
maintenance decision-making
