An efficient response surface method using Givens transformation for structural reliability analysis

The response surface method was proposed as a collection of statistical and mathematical techniques that are useful for modeling and analyzing a system which is influenced by several input variables.This method gives an explicit approximation of the implicit limit state function of the structure through a number of deterministic structural analyses.However,the position of the experimental points is very important to improve the accuracy of the evaluation of failure probability.In the paper,the experimental points are obtained by using Givens transformation in such way these experimental points nearly close to limit state function.A Numerical example is presented to demonstrate the improved accuracy and computational efficiency of the proposed method compared to the classical response surface method.As seen from the result of the example,the proposed method leads to a better approximation of the limit state function over a large region of the design space,and the number of experimental points using the proposed method is less than that of classical response surface method.
structural reliability response surface method Givens transformation
Weitao Zhao Yi Yang Tianjun Yu
Key Laboratory of Liaoning Province for Composite Structural Analysis of Aerocraft and Simulation,Shenyang Aerospace University, 110136 Shenyang, China
国际会议
西安
英文
408-411
2012-08-24(万方平台首次上网日期,不代表论文的发表时间)