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| An efficient reliability analysis method for structures with probability-interval mixed uncertainty |
| Received:April 21, 2012 Revised:October 09, 2012 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx201305002 |
| KeyWord:structural reliability hybrid uncertainty probability interval response surface |
| Author | Institution |
| 姜潮 |
湖南大学 汽车车身先进设计制造国家重点实验室, 长沙 |
| 刘丽新 |
湖南大学 汽车车身先进设计制造国家重点实验室, 长沙 |
| 龙湘云 |
湖南大学 汽车车身先进设计制造国家重点实验室, 长沙 |
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| Abstract: |
| A high efficient method is proposed to deal with reliability analysis of hybrid structures with random and interval variables.Response surface method in the traditional probability reliability analysis is applied to the hybrid uncertainty problem,combined Bucher design with vector projection method,a linear response surface is constructed,and then an efficient decoupling approach is used to solve an approximate hybrid reliability model which is created based on the response surface,after several times iteration,response surface is sufficiently close to the exact limit state function.Numerical examples are provided to demonstrate the effectiveness of the present method. |