作者：杨金鹏1,2,3, 连光耀2, 李会杰2
作者单位：1. 陆军工程大学石家庄校区导弹工程系, 河北 石家庄 050003;
2. 中国人民解放军32181部队, 河北 石家庄 050003;
3. 中国人民解放军75833部队, 广东 广州 510000
关键词：故障模式影响及危害性分析;性能退化;加速退化试验;热失效
摘要：
针对由于新装备历史数据缺乏、依赖人工分析导致测试性试验样本存在主观性和盲目性等问题，在现有方法的基础上提出温度载荷下的的故障模式影响及危害性分析方法。首先，分别建立元器件和焊点在温度载荷下的失效模型；然后，提出基于元器件、焊点融合失效模型的典型故障模式的失效概率计算方法；最后，将元器件和焊点加速退化试验数据带入融合失效模型进行计算实现最终分析。试验结果表明：该方法可对现有故障模式影响及危害性分析方法提供有效补充和修正，充分暴露产品测试性设计缺陷并为测试性设计改进工作提供支持。
Failure mode effect and critically analysis of new equipmen under thermal loadings
YANG Jinpeng1,2,3, LIAN Guangyao2, LI Huijie2
1. Shijiazhuang Campus of Army Engineering University Department of Missile Engineering, Shijiazhuang 050003, China;
2. 32181 Force of PLA, Shijiazhuang 050003, China;
3. 75833 Force of PLA, Guangzhou 510000, China
Abstract: Considering the traditional failure mode analysis problem of higher subjectivity, stronger blindness and lacking of electronic equipment historical failure data in traditional failure mode effect and critically analysis (FMECA), based on the traditional method, an improved method of failure mode analysis was proposed. Firstly, the failure models of components and solder joints under the thermal loadings are established according to the existing methods; Then a failure model fused components and solder joints is presented to calculate the failure probability; Finally, the final failure mode effect and critically analysis could be obtained according to the failure data obtained by accelerate degradation test and the failure model.Case study indicates that the optimized method could provide effective complement and correction for traditional failure mode effect and critically analysis.
Keywords: failure mode effect and critically analysis;performance degradation;accelerated degradation test(ADT);thermal failure
2019, 45(8):156-160 收稿日期: 2018-05-29;收到修改稿日期: 2018-08-02
基金项目:
作者简介: 杨金鹏(1993-),男,河北沧州市人,硕士研究生,专业方向为装备测试性设计与分析
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