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采用区间分析的加速退化试验评估方法

刘乐 李晓阳 姜同敏

刘乐, 李晓阳, 姜同敏等 . 采用区间分析的加速退化试验评估方法[J]. 北京航空航天大学学报, 2015, 41(12): 2225-2231. doi: 10.13700/j.bh.1001-5965.2014.0790
引用本文: 刘乐, 李晓阳, 姜同敏等 . 采用区间分析的加速退化试验评估方法[J]. 北京航空航天大学学报, 2015, 41(12): 2225-2231. doi: 10.13700/j.bh.1001-5965.2014.0790
LIU Le, LI Xiaoyang, JIANG Tongminet al. Evaluation method for accelerated degradation testing with interval analysis[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(12): 2225-2231. doi: 10.13700/j.bh.1001-5965.2014.0790(in Chinese)
Citation: LIU Le, LI Xiaoyang, JIANG Tongminet al. Evaluation method for accelerated degradation testing with interval analysis[J]. Journal of Beijing University of Aeronautics and Astronautics, 2015, 41(12): 2225-2231. doi: 10.13700/j.bh.1001-5965.2014.0790(in Chinese)

采用区间分析的加速退化试验评估方法

doi: 10.13700/j.bh.1001-5965.2014.0790
基金项目: 国家自然科学基金(61104182);中央高校基本科研业务费专项资金(YWF-14-KKX-004)
详细信息
    作者简介:

    刘乐(1989-),男,安徽蚌埠人,博士研究生,liule89@gmail.com

    通讯作者:

    李晓阳(1980-),女,贵州贵阳人,副教授,leexy@buaa.edu.cn,主要研究方向为加速试验技术、可靠性理论.

  • 中图分类号: TB114.3

Evaluation method for accelerated degradation testing with interval analysis

  • 摘要: 传统的加速退化试验(ADT)评估方法基于精确退化数据进行可靠性和寿命评估,然而考虑到测量中人的不确定因素,试验数据可能是区间型而非精确数据.针对此类问题,基于维纳过程提出一种采用区间分析的加速退化试验寿命评估方法,区间分析方法包括可能性模型和必要性模型.首先基于区间回归将各加速应力条件下的区间退化数据的建模分析问题转化为二次规划问题,利用可能性模型获取各应力条件下的漂移系数区间和扩散系数.然后利用必要性模型结合加速模型,外推得到正常工作应力条件下的漂移系数区间,进而分析测量不确定性与可靠性和寿命评估结果的关系.最后通过数值案例对提出的方法进行阐述和验证,并进行不确定性敏感性分析.结果表明,可靠性和寿命评估结果受测量中认知不确定性的影响,降低该不确定性水平能够保证评估结果的合理性.

     

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出版历程
  • 收稿日期:  2014-12-15
  • 修回日期:  2015-02-12
  • 刊出日期:  2015-12-20

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