Parameter identification of hysteretic model of rubber-bearing based on sequential nonlinear least-square estimation

作     者：Yin Qiang Zhou Li Wang Xinming 

作者机构：MOE Key Lab of Structure Mechanics and Control for Aircraft Institute of Structures ＆ Strength Nanjing University of Aeronautics and Astronautics Nanjing 210016 China 

出 版 物：《Earthquake Engineering and Engineering Vibration》 (地震工程与工程振动（英文刊）)

年 卷 期：2010年第9卷第3期

页      面：375-383页

核心收录：

学科分类：08[工学] 081402[工学-结构工程] 081304[工学-建筑技术科学] 082504[工学-人机与环境工程] 0813[工学-建筑学] 0814[工学-土木工程] 0825[工学-航空宇航科学与技术] 

基　　金：National Natural Science Foundation of China Under Grant No.10572058 the Science Foundation of Aeronautics of China Under Grant No.2008ZA52012 

主　　题：parameter identification rubber-bearing hysteretic behavior Bouc-Wen model sequential nonlinear least- square estimation 

摘      要：In order to evaluate the nonlinear performance and the possible damage to rubber-bearings （RBs） during their normal operation or under strong earthquakes, a simplified Bouc-Wen model is used to describe the nonlinear hysteretic behavior of RBs in this paper, which has the advantages of being smooth-varying and physically motivated. Further, based on the results from experimental tests performed by using a particular type of RB （GZN 110） under different excitation scenarios, including white noise and several earthquakes, a new system identification method, referred to as the sequential nonlinear least- square estimation （SNLSE）, is introduced to identify the model parameters. It is shown that the proposed simplified Bouc- Wen model is capable of describing the nonlinear hysteretic behavior of RBs, and that the SNLSE approach is very effective in identifying the model parameters of RBs.