Identification of Bouc-Wen hysteretic parameters based on enhanced response sensitivity approach

12th International Conference on Damage Assessment of Structures

Wang, Li^1 ; Lu, Zhong-Rong^1

Department of Applied Mechanics and Engineering, Sun Yat-sen University, Guangzhou

510006, China^1

关键词: Bouc-Wen hysteretic model;    Hysteretic parameter;    Identification approach;    Inverse identification;    Non-linear least squares;    Objective functions;    Optimization problems;    Response sensitivity;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/842/1/012021/pdf
DOI  :  10.1088/1742-6596/842/1/012021

来源: IOP

【 摘 要 】

This paper aims to identify parameters of Bouc-Wen hysteretic model using time-domain measured data. It follows a general inverse identification procedure, that is, identifying model parameters is treated as an optimization problem with the nonlinear least squares objective function. Then, the enhanced response sensitivity approach, which has been shown convergent and proper for such kind of problems, is adopted to solve the optimization problem. Numerical tests are undertaken to verify the proposed identification approach.