不完全Gamma分布下弹簧触指的可靠性寿命评估

王建平; 程德勇; 杨恩; 孙兴汉

doi:10.13433/j.cnki.1003-8728.2017.0106

不完全Gamma分布下弹簧触指的可靠性寿命评估

doi: 10.13433/j.cnki.1003-8728.2017.0106

1.
西安理工大学机械与精密仪器工程学院, 西安 710048

基金项目:

国家自然科学基金项目（51275408）、陕西省教育厅自然科学专项项目（2013JK1028）及西安市科技计划项目（CXY1431-7）资助

详细信息

作者简介:
王建平(1970-),副教授,博士后,研究方向为非线性系统动力学和机床运行可靠性理论与测试,wangjianping@xaut.edu.cn

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出版历程
- 收稿日期: 2015-04-27
- 刊出日期: 2017-01-16

Reliability Life Assessment of Spring Contact with Incomplete Gamma Distribution

1.
School of Mechanical and Precision Instrument Engineering, Xi'an University of Technology, Xi'an 710048, China

摘要

摘要: 针对高压断路器固封极柱内滑动联接用弹簧触指在极小样本无失效情况下的可靠性试验评估问题，采用不完全Gamma分布作为弹簧触指失效率的先验分布，基于多层Bayes可靠性评估方法建立概率模型，根据最小二乘法求出二参数Weibull分布中的待定参数，得到弹簧触指可靠性数学模型。研究结果验证了不完全Gamma分布作为失效率先验分布运用到多层Bayes方法可靠性评估中的合理性，为弹簧触指的可靠性评估提供了一定的理论指导。
- 弹簧触指 /
- 极小样本 /
- 不完全Gamma分布 /
- Weibull分布 /
- 可靠性评估
Abstract: For the problem of reliability evaluation of the spring contact used in sliding connection of high-voltage circuit breaker's embedded pole in the case of minimum sample and zero-failure reliability test evaluation, the incomplete gamma distribution is adopted as a prior distribution of the spring contact failure probability, the mathematical model of accumulation failure probability is established based on the hierarchical Bayesian reliability assessment method. According to the least square method, the undetermined parameters of the two parameter Weibull distribution are solved and the reliability mathematical model is obtained for the canted spring contact. The results verify the reasonable of applying the incomplete gamma distribution to the reliability evaluation of the hierarchical Bayesian, which provides a guide for evaluating the reliability of spring contact.
- spring contact /
- minimum sample /
- incomplete gamma distribution /
- Weibull distribution /
- reliability analysis

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参考文献(16)

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