Time-Varying Nonlinear Parametric Identification of Isolated Structure Based on Wavelet Multiresolution Anslysis

doi:10.16450/j.cnki.issn.1004-6801.2019.03.024

IR > 土木工程学院

	Time-Varying Nonlinear Parametric Identification of Isolated Structure Based on Wavelet Multiresolution Anslysis
	Zhao, Lijie 1; Lin, Dongqin 1; Du, Yongfeng2 ; Li, Wanrun2
	2019-06-01
发表期刊	Zhendong Ceshi Yu Zhenduan/Journal of Vibration, Measurement and Diagnosis
ISSN	10046801
卷号	39 期号:3 页码:619-624
摘要	In order to study the time-varying nonlinear mechanical behavior of isolated structures under earthquake action, a novel method of identifying time-varying nonlinear parameters of isolated structures is proposed based on wavelet multi-resolution analysis (WMRA) theory. The classic hysteresis nonlinear Bouc-wen model used to describe isolation bearings is studied. In the motion equation established, the three-order effective numerical difference technique is cited to linearize increment expression of restoring force in nonlinear model and form a recursive observation equation. The time-varying parameters to be identified in observation equation are expressed approximately using WMRA, and their identification can be transformed into time-invariant wavelet reconstruction coefficient estimation in multivariable linear regression model. Numerical simulation and shaking table test data of serial seismic isolation system (SIS) are employed to identify evolution law with time of structural parameters and isolation layer parameters, and correctness and applicability of the method are verified. It can be used to evaluate mechanical states of the isolated structures during both construction period and operation period. © 2019, Editorial Department of JVMD. All right reserved.
关键词	Control nonlinearities Equations of motion Hysteresis Identification (control systems) Nonlinear equations Numerical methods Regression analysis Seismology Hysteresis non linearities Multi-variable linear regression Nonlinear parametric identifications Seismic isolation structures Seismic isolation systems Time varying Wavelet multi resolution analysis (WMRA) Wavelet multiresolution
DOI	10.16450/j.cnki.issn.1004-6801.2019.03.024
收录类别	EI
语种	中文
出版者	Nanjing University of Aeronautics an Astronautics
EI入藏号	20193307303634
EI主题词	Parameter estimation
EI分类号	484.1 Earthquake Measurements and Analysis - 731.1 Control Systems - 921.2 Calculus - 921.6 Numerical Methods - 922.2 Mathematical Statistics - 961 Systems Science
来源库	Compendex
分类代码	484.1 Earthquake Measurements and Analysis - 731.1 Control Systems - 921.2 Calculus - 921.6 Numerical Methods - 922.2 Mathematical Statistics - 961 Systems Science
引用统计	无
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/114046
专题	土木工程学院
作者单位	1.School of Civil Engineering, Hebei University of Engineering, Handan; 056038, China; 2.Institute of Earthquake Protection and Disaster Mitigation, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Zhao, Lijie,Lin, Dongqin,Du, Yongfeng,et al. Time-Varying Nonlinear Parametric Identification of Isolated Structure Based on Wavelet Multiresolution Anslysis[J]. Zhendong Ceshi Yu Zhenduan/Journal of Vibration, Measurement and Diagnosis,2019,39(3):619-624.
APA	Zhao, Lijie,Lin, Dongqin,Du, Yongfeng,&Li, Wanrun.(2019).Time-Varying Nonlinear Parametric Identification of Isolated Structure Based on Wavelet Multiresolution Anslysis.Zhendong Ceshi Yu Zhenduan/Journal of Vibration, Measurement and Diagnosis,39(3),619-624.
MLA	Zhao, Lijie,et al."Time-Varying Nonlinear Parametric Identification of Isolated Structure Based on Wavelet Multiresolution Anslysis".Zhendong Ceshi Yu Zhenduan/Journal of Vibration, Measurement and Diagnosis 39.3(2019):619-624.