| 超静定结构可靠性分析的一种方法 |
| |
| 引用本文： | 蔡荫林,张德敏.超静定结构可靠性分析的一种方法[J].哈尔滨工程大学学报,1990(1). |
| |
| 作者姓名： | 蔡荫林 张德敏 |
| |
| 作者单位： | 航天工程系
(蔡荫林)，航天工程系(张德敏) |
| |
| 摘 要： | 本文用结构分析的有限元法求得超静定构架结构元件的内力,并用结构刚度矩阵的奇异性来判定结构是否失效.提出了系统地形成结构失效模式中确认主要失效模式的一种新方法,然后根据确认的主要失效模式求得超静定构架结构失效概率的上下限.数值例题表明,方法相当有效.这种方法为需要大量进行可靠性分析的基于可靠性的结构优化设计提供了较好的基础.
|
| 关 键 词： | 主要失效模式 超静定构架结构 失效概率 可靠性分析 |
A Method of Redundant Structure Reliability Analysis |
| |
| Cai Yinlin, Zhang Demin.A Method of Redundant Structure Reliability Analysis[J].Journal of Harbin Engineering University,1990(1). |
| |
| Authors: | Cai Yinlin Zhang Demin |
| |
| Affiliation: | Dept.of Aerospace Eng. |
| |
| Abstract: | This paper gives the internal force of members of redundant truss structures by using the finite element method of structure analysis.Complete failure of the structures is determined by investigating singularity of the structure stiffness matrix.A new method is proposed for definiting the dominant failure modes among forming systematically the structure failure modes.Then the upper and lower bounds of the failure probabilities of redundant truss structures are evaluated according to the dominant failure modes.Numerical examples are provided to demonstrate the validity of the proposed method.The method provided a good baiss for structural optimi zation based on reliability which needs a lot of reliability analyses. |
| |
| Keywords: | dominant failure modes redundant truss structures failure probability reliability analysis |
| 本文献已被 CNKI 等数据库收录！ |
