Time-dependent mechanism reliability analysis with imprecise probability distributions based on envelope function

被引：1
作者：
Zhang, Zheng [1 ]
Zhou, Changcong [1 ]
Chang, Qi [1 ]
Li, Haihe [1 ]
Yue, Zhufeng [1 ]
机构：
[1] Northwestern Polytech Univ, Dept Engn Mech, Inst Aircraft Reliabil Engn, Xian, Shaanxi, Peoples R China
来源：
MECHANICS BASED DESIGN OF STRUCTURES AND MACHINES | 2023年 / 51卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Time-dependent reliability; sensitivity; interval model; envelope function; optimization; SENSITIVITY-ANALYSIS; DESIGN; MODEL;
D O I：
10.1080/15397734.2020.1850294
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
The time-dependent mechanism reliability and sensitivity analysis with imprecise probability distributions is investigated in this article. First, the interval model is employed to describe the uncertainty of the parameters of input variables due to the lack of data and knowledge. Next, the form of time-dependent failure probability and global reliability sensitivity (GRS) main effect index in the case of interval distribution parameters is analyzed. Then, the calculation methods of failure probability and GRS main effect index under the above circumstance are discussed. Finally, combined with the optimization algorithm, the Monte Carlo simulation (MCS) method and the method based on envelope function (MEVF) are proposed. By comparing with the MCS results, several numerical and engineering examples are analyzed to demonstrate the significance as well as the effectiveness of MEVF.
引用
收藏
页码：642 / 664
页数：23
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