| 基于危害度航空发动机可靠性评估模型及应用 |
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| 引用本文： | 王大伟,马艳红,洪杰.基于危害度航空发动机可靠性评估模型及应用[J].北京航空航天大学学报,2008,34(8):883-886. |
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| 作者姓名： | 王大伟 马艳红 洪杰 |
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| 作者单位： | 北京航空航天大学 能源与动力工程学院, 北京 100191 |
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| 基金项目： | 教育部跨世纪优秀人才培养计划 |
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| 摘 要： | 针对航空发动机可靠性指标评估的需要,提出了基于危害度故障统计分析模型.该模型考虑各故障样本对发动机危害性的影响,将出现的故障按照对发动机安全、性能、任务及维修等指标的影响进行等级分类,从故障的失效机理出发建立相应的分布模型,采用分布计算和二次分布等算法进行整体可靠性指标评估.应用该模型对英产和国产的2种同类型航空发动机进行了故障统计分析,计算了2种发动机的可靠性指标,并进行了对比分析.最后以累积工作时间和日历工作时间进行了故障的时间变化分析,提出了故障样本的时效性.
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| 关 键 词： | 可靠性评估 危害度 时效性 |
| 收稿时间： | 2007-07-09 |
Reliability assessment model and application for aero-engine based on criticality method |
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| Wang Dawei,Ma Yanhong,Hong Jie.Reliability assessment model and application for aero-engine based on criticality method[J].Journal of Beijing University of Aeronautics and Astronautics,2008,34(8):883-886. |
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| Authors: | Wang Dawei Ma Yanhong Hong Jie |
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| Institution: | School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100191, China |
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| Abstract: | The reliability assessment model based on criticality method was proposed for aero-engine reliability evaluation.Various aero-engine fault samples which affected the normal work were considered in this model.The entire appearance fault sample was classified by the targets of aero-engine safety,performance,tasks and maintenance.A corresponding distribution statistical model was founded on the failure mechanism of fault samples,and the reliability targets were statistically analyzed by using distribution meth... |
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| Keywords: | reliability assessment criticality time effectiveness |
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