A Probabilistic and Interval Hybrid Reliability Analysis Method for Structures with Correlated Uncertain Parameters

被引:28
|
作者
Jiang, C. [1 ]
Zheng, J. [1 ]
Ni, B. Y. [1 ]
Han, X. [1 ]
机构
[1] Hunan Univ, Coll Mech & Vehicle Engn, State Key Lab Adv Design & Mfg Vehicle Body, Changsha 410082, Hunan, Peoples R China
基金
美国国家科学基金会;
关键词
Hybrid reliability; probability model; interval model; parametric correlation; sample correlation coefficient; DESIGN;
D O I
10.1142/S021987621540006X
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
This paper proposes a probability-interval mixed uncertainty model considering parametric correlations and a corresponding structural reliability analysis method. First of all, we introduce the sample correlation coefficients to express the correlations between different kinds of uncertain variables including probability and interval variables. Then dependent parameters are transformed into independent ones through a matrix transformation. A reliability analysis model is put forward, and an efficient method is built to obtain the reliability index or failure probability interval of the structure. Finally, four numerical examples are provided to verify the validity of the method.
引用
收藏
页数:24
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