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《Journal of Earthquake Engineering and Engineering Vibration》 2007-03
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Simulation of earthquake ground motions by using EMD and VARMA model

DONG Yinfeng1,LI Yingmin1,LAI Ming2,LIU Liping1(1.College of Civil Engineering,Chongqing University,Chongqing 400045,China; 2.Department ofScience and Technology,Ministry of Construction,Beijing 100835,China)  
By using the empirical mode decomposition(EMD) method to decompose the earthquake ground motion to a finite set of intrinsic mode functions(IMFs),a simulation method based on the time varying VARMA modeling of IMFs is proposed.The numerical results indicate that having advantage of the characteristics of IMFs the method resolves the problem of model order selection,with which the ARMA or VARMA model based methods are confronted and can simultaneously take into account the nonstationarity in amplitude and frequency contents of earthquake ground motions.It is also confirmed that the method has an agreement in energy-time-frequency distribution between the synthesized and the actual ground motions and gives a good performance in sample characteristics and compatibility of elastic and elasto-plastic response spectra.
【Fund】: 国家自然科学基金项目(50008017)
【CateGory Index】: P315.8
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【Citations】
Chinese Journal Full-text Database 2 Hits
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【Co-citations】
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1 Xu Guodong~(1),Zhou Xiyuan~(1,2),Yan Weiming~(1),Dong Di~(1)(1.Beijing Key Laboratory of Earthquake Engineering and Structural Retrofit,Beijing 100022,China;2.Institute ofEarthquake Engineering and Disaster Reduction,Beijing University of Technology, Beijing 100022,China);The effect of the super-randomness on spectral property and time history of strong ground motion[J];Earthquake Engineering and Engineering Vibration;2005-05
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3 Jiang Hui~(1),Hu Yuxian~(2),Zhao Fengxin~(2),Yu Yanxiang~(2),Tang Lihua~(3)(1.Earthquake Administration of GuangDong Province,Guangzhou 510070,China;2.Institute of Geophysics,CEA,Beijing 100081,China;3.Earthquake Administration of XinJiang,Urumqi 830011,China);Study on ground motion parameters of scenario earthquake using stochastic simulation method[J];Earthquake Engineering and Engineering Vibration;2006-03
4 Xu Guodong1,Zhou Xiyuan2,Yan Weiming2(1.College of Resources Science and Technology,Beijing Normal University,Beijing 100875,China;2.Beijing Key Laboratoryof Earthquake Engineering and Structural Retrofit,Beijing University of Technology,Beijing 100022,China);Some notes on the super-randomness of strong ground motion[J];Journal of Earthquake Engineering and Engineering Vibration;2007-01
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