航空学报 > 1994, Vol. 15 Issue (8): 910-916

结构刚度可靠性分析方法

吕震宙, 冯元生   

  1. 西北工业大学飞机系,西安,710072
  • 收稿日期:1993-05-31 修回日期:1993-10-10 出版日期:1994-08-25 发布日期:1994-08-25

RELIABILITY ANALYSIS METHOD OF STRUCTURAL STIFFNESS

Lu Zhenzhou, Feng Yuansheng   

  1. Dept.of Aircraft Engineering,Northwesten Polytechnical University,Xi’an,710072
  • Received:1993-05-31 Revised:1993-10-10 Online:1994-08-25 Published:1994-08-25

摘要: 提出了结构刚度可靠性的分析方法,引入了刚度可靠性分析中相对重要度的概念,建立了以相对重要度来确定主要变量的准则,同时对极限状态方程的形式以及如何确定极限状态方程插值点进行了研究,形成了一般工程设计情况下和特殊情况下结构刚度可靠性分析的通用方法,并且这种方法可以推广到结构强度的可靠性分析。

关键词: 可靠性分析, 刚度, 随机变量, 临界载荷

Abstract: A reliability analysis method of stiffness of large and complex structure systems is proposed,and relative significance is introduced as a criterion to enumerate significant random variables.Simplifications of limit state functions and selections of intemolation points are stu-died through numerical examples.Thus,an unit stiffness reliability analysis method is estab- lished for general and special engineering problems,and this method can be extended to strength reliability analysis.

Key words: reliability analysis, stiffness, random variables, critical loading

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