Journal of Shanghai Jiao Tong University

Journal of Shanghai Jiaotong University >

2018 , Vol. 52 >Issue 4: 455 - 460

DOI: https://doi.org/10.16183/j.cnki.jsjtu.2018.04.010

An Improved Moving Least Square Method and Application in Structural Reliability Analysis

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  • 1. State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200240, China； 2. Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration, Shanghai Jiao Tong University, Shanghai 200240, China； 3. Institute of Advanced Sciences, Yokohama National University, Yokohama 240-8501, Japan
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Abstract

A response surface method using moving least square method is applied for structural reliability analysis in this paper. In each iteration, sampling point’s weight is redefined by not only the distance between the point and center point but also the distance between the point and response surface. Meanwhile, current iteration’s influence domain is transformed according to the last response surface obtained from former iterations. Thus, an improved moving least method is proposed and numerical results indicate the improved method has higher accuracy.

Key words： reliability analysis; response surface method (RSM); moving least square method (MLSM); weight; vector project method (VPM)

Cite this article

WEI Yifu1,2,KAWAMURA Yasumi3,WANG Deyu1,2,3 . An Improved Moving Least Square Method and Application in Structural Reliability Analysis[J]. Journal of Shanghai Jiaotong University, 2018 , 52(4) : 455 -460 . DOI: 10.16183/j.cnki.jsjtu.2018.04.010

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