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改进FMEA与故障传播模型混合故障诊断方法

张红旗 邵晓东 苏春 柳纯

张红旗, 邵晓东, 苏春, 柳纯. 改进FMEA与故障传播模型混合故障诊断方法[J]. 机械科学与技术, 2017, 36(1): 23-28. doi: 10.13433/j.cnki.1003-8728.2017.0103
引用本文: 张红旗, 邵晓东, 苏春, 柳纯. 改进FMEA与故障传播模型混合故障诊断方法[J]. 机械科学与技术, 2017, 36(1): 23-28. doi: 10.13433/j.cnki.1003-8728.2017.0103
Zhang Hongqi, Shao Xiaodong, Su Chun, Liu Chun. Integrated Fault Diagnosis Method based on Improved FMEA and Failure Propagation Model[J]. Mechanical Science and Technology for Aerospace Engineering, 2017, 36(1): 23-28. doi: 10.13433/j.cnki.1003-8728.2017.0103
Citation: Zhang Hongqi, Shao Xiaodong, Su Chun, Liu Chun. Integrated Fault Diagnosis Method based on Improved FMEA and Failure Propagation Model[J]. Mechanical Science and Technology for Aerospace Engineering, 2017, 36(1): 23-28. doi: 10.13433/j.cnki.1003-8728.2017.0103

改进FMEA与故障传播模型混合故障诊断方法

doi: 10.13433/j.cnki.1003-8728.2017.0103
基金项目: 

陕西省自然科学基础研究计划重点项目(2014JZ016)资助

详细信息
    作者简介:

    张红旗(1975-),研究员,硕士,研究方向为数字化设计与制造、可靠性工程,proefan@163.com

Integrated Fault Diagnosis Method based on Improved FMEA and Failure Propagation Model

  • 摘要: 针对机电产品多种故障原因和故障模式并存问题,在常规故障模式及其影响分析(FMEA)基础上,提出了一种改进FMEA与故障传播模型混合故障诊断方法。分析系统常见故障模式及其故障原因,确定每种故障原因对当前故障模式的贡献率;根据故障传播模型进行故障模式推理,计算每种故障模式的发生概率;采用[0,1]区间的概率值来度量故障的严重度和检测度,得到风险扩展数(REN);通过比较每种故障模式的发生概率和REN值,确定系统关键部件及其主要故障模式,为系统维修策略的制定提供理论依据。计算分析结果表明,该方法能有效识别系统的主要故障模式和关键零部件,并与工程实际相吻合。
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出版历程
  • 收稿日期:  2015-05-06
  • 刊出日期:  2017-01-16

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