A new physical parameter identification method for shear frame structures under limited inputs and outputs
A new physical parameter identification method for shear frame structures under limited inputs and outputs
复制标题
有限输入输出下剪力框架结构物理参数识别新方法
DOI:
10.1177/1369433220963733
复制
发表时间:
2020-10
影响因子:
2.6
通讯作者:
Jing Zhang
中科院分区:
文献类型:
--
作者:
Liu Jingliang;Yu Anhua;Chang Chia-Ming;Ren Weixin;Jing Zhang
A new physical parameter identification method with a name of EKPF-LS is proposed for shear frame structures under limited inputs and outputs by a combination of extended Kalman particle filter (EKPF) and least square (LS) algorithm. The basic principle of EKPF-LS is to establish the proposed distribution function of the particle filter through EKF-LS. In this method, EKPF is introduced to get rid of the restriction of Gaussian white noise model and reduce the linearization error caused by EKF. Meanwhile, LS is utilized to address the problem of unmeasured excitation estimations. The effectiveness and accuracy of the proposed EKPF-LS method is verified by a numerical example of a four-story hysteretic shear frame under an earthquake excitation and an experimental test of a four-story shear type frame using Gaussian white noise and sine sweep signal as excitations, respectively. Gaussian colored noises are then added to the solved and measured response signals in the numerical example and experimental test, respectively. The results demonstrate that the proposed method can identify the stiffness of shear frame structures effectively and is superior to the existed EKF-LS approach when the structural system is nonlinear structural system or Colored noise model.
登录
查看更多内容
影响因子:
8.4
作者:
Ying Lei;D;an Xia;Kalil Erazo;Satish Nagarajaiah
通讯作者:
Satish Nagarajaiah
DOI:
10.1061/(asce)0733-9399(1997)123:5(504
发表时间:
1997-05
期刊:
Journal of Engineering Mechanics-asce
影响因子:
--
作者:
Duan Wang;A. Haldar
通讯作者:
Duan Wang;A. Haldar
DOI:
10.1002/9780470575758
发表时间:
2010-03
期刊:
--
影响因子:
--
作者:
通讯作者:
--
DOI:
--
发表时间:
1967
期刊:
--
影响因子:
--
作者:
R. Bouc
通讯作者:
R. Bouc
DOI:
10.1061/(asce)0733-9399(2005)131:3(290
发表时间:
2005-03
期刊:
Journal of Engineering Mechanics-asce
影响因子:
--
作者:
Jann N. Yang;Silian Lin
通讯作者:
Jann N. Yang;Silian Lin