Updating of Finite Element Model in Considering Mode Errors with Fuzzy Theory

摘要：

Finite element model updating aims at reconciling the analytical model with the test one,to acquire a refined model with high-fidelity in structural dynamic properties.However,testing data are inevitable polluted by noises.In this study,the mode parameters and design variables are modeled as fuzzy variables,and a fuzzy model updating method is developed.Instead of a single optimal model,a set of satisfactory models is obtained.The most physically compatible solution is sorted by insights to the structures.The proposed method is applied to a real concrete bridge,for which a physically meaningful model is identified.

关键词： Structural model updating Fuzzy set theory Fuzzy finite element Sublevel technique Interval sensitivity analysis

作者: Yang Liu Zhongdong Duan Hui Li

作者单位: School of transportation science and engineering,Harbin instittute of technology,China,150090 School of civil engineering,Harbin instittute of technology,China,150090

会议类型: 国际会议

会议名称: The 8th International Conference on Damage Assessment of Structures(DAMAS 2009)(第八届结构损伤评价国际学术会议)

会议地点: 北京

会议语种:英文

页码: 785-792

在线出版日期: 2009-08-03（万方平台首次上网日期，不代表论文的发表时间）