Time-varying response surface method for high-temperature structural reliability analysis

被引：0
作者：
Ma, Xiaobing [1 ,2 ]
Ren, Hongdao [1 ]
Cai, Yikun [1 ]
机构：
[1] School of Reliability and Systems Engineering, Beijing University of Aeronautics and Astronautics, Beijing
[2] Key Laboratory of National Defense Technology for Reliability & Environment Engineering Technology, Beijing University of Aeronautics and Astronautics, Beijing
来源：
Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics | 2015年 / 41卷 / 02期
关键词：
Experimental design; High-temperature structure; Structure reliability; Time-varying limit state function; Time-varying response surface method;
D O I：
10.13700/j.bh.1001-5965.2014.0142
中图分类号：
学科分类号：
摘要：
The constitutive equation and carrying capacity of structure will change over time under high temperature conditions. The traditional structural reliability models are inefficient to solve these time-varying structural reliability problems. A time-varying response surface method with thermal response and response threshold value changing over time was proposed. The method can be used for high-temperature structural reliability analysis. Combined with Box-Behnken experimental design, a cross quadratic function of structure's basic variables and time was introduced for establishing a time-varying model of the thermal structural response. The function of structural response threshold value and time was established by using temperature as intermediate variable. The time-varying structural reliability calculation method was proposed when basic variables are normally distributed. A study case was given to demonstrate the applicability of this method and its greatly enhanced effectiveness besides accuracy. ©, 2015, Beijing University of Aeronautics and Astronautics (BUAA). All right reserved.
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页码：198 / 202
页数：4
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