An evolutionary power spectrum model of fully nonstationary seismic ground motion

doi:10.1016/j.soildyn.2017.11.014

IMECH-IR > 非线性力学国家重点实验室

	An evolutionary power spectrum model of fully nonstationary seismic ground motion
	Wang D ; Fan ZL ; Hao SW(郝圣旺); Zhao DH
	2018-02-01
发表期刊	SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
卷号	105 页码:1-10
ISSN	0267-7261
摘要	A parametric evolutionary power spectrum model of fully nonstationary seismic ground motion is developed based on the evolutionary spectrum estimation method via generalized harmonic wavelets. The model consists of a frequency-domain energy distribution function and a series of normalized time-dependent envelop functions for different frequencies. The frequency-domain energy distribution function describes the spectral characteristics of the seismic ground motion. The nonstationarity is achieved by the normalized time-dependent envelope functions. For a specific seismic ground motion record, the evolutionary power spectral density (EPSD) is estimated via generalized harmonic wavelets. The parameters are identified by letting the model approximate to the estimated EPSD of the realistic ground motion. By using the spectral representation method, the proposed EPSD model can be used to synthesize the artificial seismic ground motion time histories for engineering purposes.
关键词	Evolutionary power spectral density Seismic ground motion Nonstationarity Parameter identification Generalized harmonic wavelets
DOI	10.1016/j.soildyn.2017.11.014
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000423893000001
关键词[WOS]	EASTERN NORTH-AMERICA ; STOCHASTIC-PROCESSES ; SIMULATION ; WAVELETS
WOS研究方向	Engineering, Geological ; Geosciences, Multidisciplinary
WOS类目	Engineering ; Geology
项目资助者	National Natural Science Foundation of China [51408526, 51308487] ; Natural Science Foundation of Hebei Province [E2015203274] ; National Basic Research Program of China [2013CB834100]
论文分区	二类
力学所作者排名	3
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/77870
专题	非线性力学国家重点实验室
作者单位	1.Yanshan Univ, Sch Civil Engn & Mech, Qinhuangdao, Peoples R China 2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Wang D,Fan ZL,Hao SW,et al. An evolutionary power spectrum model of fully nonstationary seismic ground motion[J]. SOIL DYNAMICS AND EARTHQUAKE ENGINEERING,2018,105:1-10.
APA	Wang D,Fan ZL,郝圣旺,&Zhao DH.(2018).An evolutionary power spectrum model of fully nonstationary seismic ground motion.SOIL DYNAMICS AND EARTHQUAKE ENGINEERING,105,1-10.
MLA	Wang D,et al."An evolutionary power spectrum model of fully nonstationary seismic ground motion".SOIL DYNAMICS AND EARTHQUAKE ENGINEERING 105(2018):1-10.