东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2008, Vol. 29 ›› Issue (7): 1012-1015.DOI: -

• 论著 • 上一篇    下一篇

不完全概率信息下机械零部件的可靠性灵敏度设计

杨周;张义民;   

  1. 东北大学机械工程与自动化学院;东北大学机械工程与自动化学院 辽宁沈阳110004;辽宁沈阳110004
  • 收稿日期:2013-06-22 修回日期:2013-06-22 出版日期:2008-07-15 发布日期:2013-06-22
  • 通讯作者: Yang, Z.
  • 作者简介:-
  • 基金资助:
    国家高技术研究发展计划项目(2007AA04Z442);;

Reliability-based sensitivity design of mechanical components depending on incomplete information on probability

Yang, Zhou (1); Zhang, Yi-Min (1)   

  1. (1) School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110004, China
  • Received:2013-06-22 Revised:2013-06-22 Online:2008-07-15 Published:2013-06-22
  • Contact: Yang, Z.
  • About author:-
  • Supported by:
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摘要： 应用随机摄动技术和四阶矩技术,将可靠性设计理论与灵敏度分析方法相结合,建立了机械零部件可靠性灵敏度设计模型.提出了基于四阶矩方法的可靠性灵敏度设计的计算方法,讨论了具有不完全概率信息的机械零部件的可靠性灵敏度设计问题;探讨了机械零部件的可靠性随设计参数改变的数学评价方法,给出了可靠性灵敏度的变化规律;研究了设计参数的改变对机械零部件的可靠性的影响,并且获得了理想的数值设计结果.为机械零部件的可靠性设计提供了理论依据.

关键词: 机械零部件, 可靠性设计, 可靠性灵敏度, 不完全概率信息, 四阶矩技术

Abstract: Based on the stochastic perturbation and fourth moment techniques, the theory of reliability design is combined with sensitivity analysis to develop a mathematical model for reliability-based sensitivity of mechanical components. Such a reliability-based sensitivity depending on the incomplete information on probability is extensively discussed, and a numerical method for the reliability-based sensitivity design is correspondingly presented, with a mathematical evaluation method given in which the reliability of mechanical components changes with design parameters. Furthermore, how the reliability-based sensitivity changes and the effect of design parameters on the reliability of mechanical components are studied with ideal numerical design results obtained. The method proposed thus provides the reliability design of mechanical components with a theoretical reference.

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