| 基于风险评估的检测与修理决策模型 |
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| 引用本文： | 江承兴,赵建民,张志会. 基于风险评估的检测与修理决策模型[J]. 军械工程学院学报, 2010, 22(2): 15-19 |
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| 作者姓名： | 江承兴 赵建民 张志会 |
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| 作者单位： | [1]军械工程学院装备指挥与管理系,河北石家庄050003 [2]77569部队,西藏拉萨850030 |
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| 摘 要： | 研究了基于故障风险的检测与维修策略，运用威布尔比例风险模型建立系统故障率与工作时间及所处状态的关系。分析了两类基于间接状态信息维修决策的风险，建立了系统检测及维修策略的决策树，通过比较检测与不检测情况下的期望费用确定最优的检测间隔。算例表明，所提出的方法能够有效控制系统运行风险，降低系统运行费用。
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| 关 键 词： | 风险评估 检测 状态修理 决策 |
An Inspection And Maintenance Decision Model Based on Failure Risk Assessment |
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| JIANG Cheng-xing,ZHAO Jian-min,ZHANG Zhi-hui. An Inspection And Maintenance Decision Model Based on Failure Risk Assessment[J]. Journal of Ordnance Engineering College, 2010, 22(2): 15-19 |
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| Authors: | JIANG Cheng-xing ZHAO Jian-min ZHANG Zhi-hui |
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| Affiliation: | 1 Department of Equipment Command and Management,Ordnance Engineering College,Shijiazhuang 050003,China; 2. PLA Unit 77569,Lhasa 850030,China) |
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| Abstract: | A risk based strategy of inspection and maintenance is studied in this paper. Weibull proportional hazard model is applied to establish the relationship between failure rate, age and deterioration condition. The risk of the maintenance decision making based on indirect condition information is analyzed. An inspection and maintenance decision tree is established for assessing the risk. The optimal inspection interval is obtained through comparing the expected cost for the case of conducting inspection with that without inspection. A numerical exampXe is given, and the results show that the decision model is effective for controlling the system risk and decreasing the maintenance costs. |
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| Keywords: | risk assessment inspection condition based maintenance decision |
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