An evolutionary power spectrum model of fully nonstationary seismic ground motion
文献类型：期刊论文
| 作者 | Wang D; Fan ZL; Hao SW(郝圣旺) ; Zhao DH
|
| 刊名 | SOIL DYNAMICS AND EARTHQUAKE ENGINEERING
 |
| 出版日期 | 2018-02-01 |
| 卷号 | 105页码:1-10 |
| 关键词 | Evolutionary power spectral density Seismic ground motion Nonstationarity Parameter identification Generalized harmonic wavelets |
| ISSN号 | 0267-7261 |
| DOI | 10.1016/j.soildyn.2017.11.014 |
| 英文摘要 | 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. |
| 分类号 | 二类 |
| URL标识 | 查看原文 |
| WOS关键词 | EASTERN NORTH-AMERICA ; STOCHASTIC-PROCESSES ; SIMULATION ; WAVELETS |
| WOS研究方向 | Engineering, Geological ; Geosciences, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000423893000001 |
| 资助机构 | National Natural Science Foundation of China [51408526, 51308487] ; Natural Science Foundation of Hebei Province [E2015203274] ; National Basic Research Program of China [2013CB834100] |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/77870]  |
| 专题 | 力学研究所_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. |
入库方式： OAI收割
来源：力学研究所
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