| An evolutionary power spectrum model of fully nonstationary seismic ground motion | |
Wang D; Fan ZL; Hao SW(郝圣旺) ; Zhao DH
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| Source Publication | SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
 |
| 2018-02-01 | |
| Volume | 105Pages:1-10 |
| ISSN | 0267-7261 |
| Abstract | 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. |
| Keyword | 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 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000423893000001 |
| WOS Keyword | EASTERN NORTH-AMERICA ; STOCHASTIC-PROCESSES ; SIMULATION ; WAVELETS |
| WOS Research Area | Engineering, Geological ; Geosciences, Multidisciplinary |
| WOS Subject | Engineering ; Geology |
| Funding Organization | National Natural Science Foundation of China [51408526, 51308487] ; Natural Science Foundation of Hebei Province [E2015203274] ; National Basic Research Program of China [2013CB834100] |
| Classification | 二类 |
| Ranking | 3 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/77870 |
| Collection | 非线性力学国家重点实验室 |
| Affiliation | 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 |
| Recommended Citation 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. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| IrJ2018257.pdf（701KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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