›› 2011, Vol. 31 ›› Issue (5): 57-63.doi: 10.3780/j.issn.1000-758X.2011.05.008

• 技术交流 • 上一篇    下一篇

基于多失效模式的扭簧可靠性优化分析

 王梅1, 陈国定1, 肖勇2   

  1. (1 西北工业大学,西安 710072)(2 西安空间无线电技术研究所,西安 710100)
  • 收稿日期:2010-11-08 修回日期:2011-03-30 出版日期:2011-10-25 发布日期:2011-10-25
  • 作者简介:王梅 1984年生,2007年毕业于西安理工大学机械设计制造及其自动化专业,现为西北工业大学机械设计及理论专业硕士研究生。主要研究方向为可靠性、优化设计等。

Optimal Analysis of the Reliability for Torsion Spring Based on Multi-failure Modes

 WANG  Mei1, CHEN  Guo-Ding1, XIAO  Yong2   

  1. (1 Northwestern Polytechnical University,Xi′an 710072)
    (2 Xi′an Institute of Space Radio Technology,Xi′an 710100)
  • Received:2010-11-08 Revised:2011-03-30 Online:2011-10-25 Published:2011-10-25

摘要: 基于广义应力广义强度分布干涉理论和单一失效模式下扭簧可靠性计算模型,建立了多失效模式下扭簧可靠度优化数学模型,采用规格化加权法进行各失效模式影响相同(等失效效应)和有差异(非等失效效应)两种情况下的扭簧可靠度计算。在给定扭簧结构和工况约束条件下,应用提出的计算模型和技术进行了失效模式影响相同和有差异的基于可靠度最大的扭簧结构优化,与非优化结构的扭簧可靠度的比较,以及这两种情况下的扭簧可靠度比较。结果表明,提出的可靠度优化模型和方法是可靠和有效的,对于航天工程中零部件的可靠性优化分析具有很好的借鉴作用。

关键词: 扭簧, 失效模式, 可靠性, 优化, 展开机构, 卫星

Abstract: Based on the general stress intensity distribution of a broad interference theory and reliability model of a single failure mode, the torsion spring reliability optimization model was established under multi-failure mode. The normalized weighted method was used to solve the torsion spring reliability calculation under equal failure effect mode and unequal failure effect mode. Under given structure and constraint conditions of torsion spring, the best reliability optimization of torsion spring structure was done in the same failure mode (equal failure effect) and different failure mode (unequal failure effect) one using the proposed model and techniques. Under equal failure effect and unequal failure effect, compared with the torsion spring reliability of non-optimized structure, the proposed reliability optimization models and methods proposed are reliable, valid and good reference for the reliability optimization of the spacecraft components.

Key words: Torsion spring, Failure mode, Reliability, Optimization, Deployable mechanism, Satellite