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Vine Copula模型的失效动态相关机械系统可靠性分析

胡启国 周松

胡启国, 周松. Vine Copula模型的失效动态相关机械系统可靠性分析[J]. 机械科学与技术, 2018, 37(8): 1149-1155. doi: 10.13433/j.cnki.1003-8728.20180024
引用本文: 胡启国, 周松. Vine Copula模型的失效动态相关机械系统可靠性分析[J]. 机械科学与技术, 2018, 37(8): 1149-1155. doi: 10.13433/j.cnki.1003-8728.20180024
Hu Qiguo, Zhou Song. Reliability Analysis of Failure Dynamic Mechanical System using Vine Copula Model[J]. Mechanical Science and Technology for Aerospace Engineering, 2018, 37(8): 1149-1155. doi: 10.13433/j.cnki.1003-8728.20180024
Citation: Hu Qiguo, Zhou Song. Reliability Analysis of Failure Dynamic Mechanical System using Vine Copula Model[J]. Mechanical Science and Technology for Aerospace Engineering, 2018, 37(8): 1149-1155. doi: 10.13433/j.cnki.1003-8728.20180024

Vine Copula模型的失效动态相关机械系统可靠性分析

doi: 10.13433/j.cnki.1003-8728.20180024
基金项目: 

国家自然科学基金项目(51375519)与重庆市基础科学与前沿技术研究专项基金项目(cstc2015jcyjBX0133)资助

详细信息
    作者简介:

    胡启国(1966-),教授,博士,研究方向为机械可靠性分析及优化、机械系统动力学,swpihqg@126.com

Reliability Analysis of Failure Dynamic Mechanical System using Vine Copula Model

  • 摘要: 提出机械系统的失效动态相关可靠性可采用动态Vine Copula模型进行描述。采用Vine Copula函数将复杂多失效相关的机械系统可靠性问题转换为对多个二维动态Copula函数进行分析。利用非参数估计算法,提出经验分布函数-局部极大似然两步法估计动态Copula函数中的时变参数,从而建立动态Vine Copula 模型来描述多失效动态相关机械系统的可靠性;并重点对机械系统的串联体系可靠性进行建模与分析,进而对机械系统的可靠度进行求解。最后通过单级减速器系统的算例验证了所述方法的合理性及有效性。
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  • 收稿日期:  2017-08-06
  • 刊出日期:  2018-08-05

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