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

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

CORC > 兰州理工大学 > 兰州理工大学 > 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, Yongfeng 2; Li, Wanrun 2
刊名	Zhendong Ceshi Yu Zhenduan/Journal of Vibration, Measurement and Diagnosis
	2019-06-01
卷号	39 期号:3 页码:619-624
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
ISSN号	10046801
DOI	10.16450/j.cnki.issn.1004-6801.2019.03.024
英文摘要	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.
语种	中文
出版者	Nanjing University of Aeronautics an Astronautics
内容类型	期刊论文
源URL	[http://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.