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非线性步进加速退化数据的可靠性评估方法

蔡忠义 陈云翔 张诤敏 项华春

蔡忠义, 陈云翔, 张诤敏, 等 . 非线性步进加速退化数据的可靠性评估方法[J]. 北京航空航天大学学报, 2016, 42(3): 576-582. doi: 10.13700/j.bh.1001-5965.2015.0459
引用本文: 蔡忠义, 陈云翔, 张诤敏, 等 . 非线性步进加速退化数据的可靠性评估方法[J]. 北京航空航天大学学报, 2016, 42(3): 576-582. doi: 10.13700/j.bh.1001-5965.2015.0459
CAI Zhongyi, CHEN Yunxiang, ZHANG Zhengmin, et al. Reliability assessment method of nonlinear step-stress accelerated degradation data[J]. Journal of Beijing University of Aeronautics and Astronautics, 2016, 42(3): 576-582. doi: 10.13700/j.bh.1001-5965.2015.0459(in Chinese)
Citation: CAI Zhongyi, CHEN Yunxiang, ZHANG Zhengmin, et al. Reliability assessment method of nonlinear step-stress accelerated degradation data[J]. Journal of Beijing University of Aeronautics and Astronautics, 2016, 42(3): 576-582. doi: 10.13700/j.bh.1001-5965.2015.0459(in Chinese)

非线性步进加速退化数据的可靠性评估方法

doi: 10.13700/j.bh.1001-5965.2015.0459
基金项目: 国防预研项目
详细信息
    作者简介:

    蔡忠义 男,博士研究生。主要研究方向:装备可靠性与系统工程。Tel.:029-84789661 E-mail:afeuczy@163.com;陈云翔 男,博士,教授,博士生导师。主要研究方向:装备发展论证、装备维修保障。Tel.:029-84789664 E-mail:cyx87793@163.com;张诤敏 女,硕士,教授,硕士生导师。主要研究方向:装备系统工程。Tel.:029-84789646 E-mail:646297491@qq.com;项华春 男,博士,副教授,硕士生导师。主要研究方向:装备可靠性与系统工程。Tel.:029-84789661 E-mail:xhc09260926@163.com

    通讯作者:

    陈云翔,Tel.:029-84789664 E-mail:cyx87793@163.com

  • 中图分类号: TB114.3

Reliability assessment method of nonlinear step-stress accelerated degradation data

Funds: Defense Advanced Research Project
  • 摘要: 针对步进应力加速退化试验(SSADT)场合下的非线性退化数据,考虑个体之间的性能退化差异,提出了基于Wiener过程的退化数据可靠性评估方法。首先,分析了步进应力加速退化试验过程及其性能退化数据模型。然后,运用非线性Wiener过程描述产品的非线性退化过程,采用时间尺度变换模型进行线性变换;将Wiener过程的漂移系数随机化处理,提出考虑了个体差异的非线性退化数据建模;根据所收集的步进应力加速退化数据,采用两步极大似然估计法确定模型中的未知参数。最后,结合某激光器的实例对比分析表明,所建模型的拟合性较好,评估结果真实准确。

     

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出版历程
  • 收稿日期:  2015-07-08
  • 刊出日期:  2016-03-20

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