Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《World Earthquake Engineering》 2007-02
Add to Favorite Get Latest Update

A study of time-frequency analysis method on typical vibration signals

XU Guo-dong1 ZHOU XI-yuan2 GUO Ming-zhu2 DONG Di2(1.China Petroleum Engineering Co.,Ltd.,Beijing 100083,China;2.Beijing Key laboratory of Earthquake Engineering andStructural Retrofit,Beijing University of Technology,Beijing 100022,China)  
Firstly,this paper compares the analytic precision of different time-frequency methods(short-time Fourier transform,Wigner Distribution,Hilbert time-frequency spectrum and continuous wavelet transform) for two simple signals——a mono-component signal and a multi-component signal.The results indicate that the precision of Hilbert time-frequency spectrum is the best,the one of the WD and STFT is second,and the one of the wavelet transform is not so good.Although Hilbert method and WD are accurate,they can be used only when the signal is mono-component or can be decomposed to a series of mono-components,otherwise the result may be false or inaccurate.When using STFT,the right window parameter must be chosen.If the window parameter is chosen inappropriately,the analytic precision may become worse.Secondly,in this paper the time-frequency distributions of two horizontal components of 1940 El Centro seismic wave and two man-made seismic waves are analysed by STFT and continuous wavelet transform.Although time resolution and frequency resolution of STFT is inconsistent,the adaptability of STFT for complicated signals is the best.Its precision of the time-frequency analysis is satisfied generally even if the signal is multi-component or complicated.The time and frequency resolutions of continuous wavelet transform are of imperfection,and its analytic precision become worse and worse when the signal frequency become higher and higher.The results indicate that the continuous wavelet transform is not appropriate for time-frequency analysis,and the time-frequency spectrums of wavelet seem rough and are difficult to interpret.Finally,this paper compares the time-frequency spectra of the genuine seismic waves and the man-made seismic wave. The results are shown that the time-frequency spectra of the seismic waves and ones of the man-made seismic waves are similar.
【Key Words】: mono-component multi-component time-frequency analysis short-time Fourier transforms(STFT) Wigner Distribution(WD) Hilbert spectrum continuous wavelet transform
【Fund】: 国家自然科学基金资助(项目批准号为504008005)
【CateGory Index】: TU311.3
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 HU Kongguo1,2,CHEN Xiaobing1,2,YUE Qingrui1,2(1.Engineering Structure Institute of Building and Construction of Ministry of Metallurgical Industry, Beijing 100088,China;2.National Engineering Research Center for Diagnosis and Rehabilitation of Industrial Buildings, Beijing 100088,China);Time sequence method of simulating earthquake wave and its applications[J];World Information On Earthquake Engineering;2003-01
2 LI Yingmin1, YANG Qiong1, LAI Ming2(1. College of Civil Engineering, Chongqing University, Chongqing 400045, China; 2. Department of Science andTechnology, Ministry of Construction, Beijing 100835, China);Simulation of earthquake ground motions compatible with multi-damping-ratio-spectra based on evolutionary strategy algorithm[J];World Information On Earthquake Engineering;2003-02
3 ZHANG Cuiran,CHEN Houqun (Earthquake Engineering Research Centre,China Institute of Water Resources and Hydropower Research,Beijing 100044,China);Review and prospects on the simulation research of engineering earthquake ground motion[J];World Earthquake Engineering;2008-02
4 ZHANG Jiao1,GUO Mingzhu1,JI Yang2(1.The Key Laboratory of Urban Security and Disaster Engineering,Ministry of Education,Beijing University of Technology,Beijing 100022,China;2.Eastern China Institute of Geological Prospecting and Research for Metallurgy,Hefei 230000,China);General introduction of artificial ground-motion[J];World Earthquake Engineering;2008-03
5 Zhang Boyan Chen Houqun Hu Xiao Zhu Liwu (China Institute of Water Resources and Hydropower Research,Beijing,100044);Generation of Artificial Earthquake Wave by Non-linear Solver[J];WATER RESOURCES AND HYDROPOWER ENGINEERING;2000-07
6 AN Zihui,LI Jie(Department of Building Engineering,Tongji University,Shanghai 200092,China);Physical Model Research on Strong Ground Motion in Frequence Domain[J];Journal of Tongji University(Natural Science);2008-07
7 LI Yong-zhe1,LUO Zhao-hui1,LI Jing-ling1,LI Da-hua2,1(1.Tianjin Institute of Urban Construction,Tianjin 300384,China;2.Tianjin Earthquake Administration,Tianjin 300201,China);Technique Research on Generating Compatible Dynamic Response Spectrum of Ground Motion under Non-stationary Phase[J];Journal of Tianjin Institute of Urban Construction;2009-03
8 Niu Zhiguo~1 Li Tongchun~1 Cui Shaofeng~2 Wang Yali~3(1.College of Water Conservancy & Hydropower Engineering,Hohai Univ.,Nanjing 210098,China;2.Liaocheng Surveying & Design Institute of Water Resources,Liaocheng 252061, China;3.Tengzhou Water Affairs Bureau,Tengzhou 277500,China);The Synthesis and Correction of Simulated Earthquake Wave on Hydraulic Design Response Spectrum[J];Journal of China Three Gorges University(Natural Sciences);2006-06
9 Zhang Hua-jun,Yang Jian-wei (School of Mechanical and Electronic Engineering,Taiyuan University of Science and Technology,Taiyuan 030024,CHN);The fault diagnosis of rolling element bearings in electromechanical system based on HHT[J];Modern Manufacturing Engineering;2008-03
10 YAO Yan-hua,PENG Gang,CHEN Deng-hong (College of Civil & Hydropower Engineering,China Three Gorges Univ.,Hubei Yichang 443002,China);Synthesis and Huang Transform Correction of Simulated Earthquake Wave for Hydraulic Design Response Spectrum[J];Northwestern Seismological Journal;2008-03
China Proceedings of conference Full-text Database 2 Hits
1 Hu Xunxun1 Zhang liaojun2 Hua Huiling3 (1 college of Civil Engineering,Hohai University,Nanjing,Jiangsu,210098,China;2 college of Water Conservancy and Hydropower Engineering,Hohai University,Nanjing,Jiangsu,210098,China;3 South China University of Technology,Guangzhou,Guangdong,540641,China);An Access to Specify Response Spectrum by Artificial Synthesis of Earthquake Motion[A];[C];2006
2 ;Generation of spatially non-stationary earthquake ground motion according to the response spectrum[A];[C];2006
【Co-references】
Chinese Journal Full-text Database 7 Hits
1 DING Yi-feng~1,CHENG Hao-zhong~1,SUN Yi-bin~2,YAN Jian-yong~2(1.Dept.of Electrical Eng.,Shanghai Jiaotong Univ.,Shanghai 200030,China;2.Shanghai Urban Power Supply Company,Shanghai 200080);The Parameter Identification of Interharmonics Based on Wavelet Transform and Prony Algorirhm[J];Journal of Shanghai Jiaotong University;2005-12
2 Liu Xiaoli Tian Jinwen (College of Electric Engineering and Information Science, Wuhan Univ) (Institute of Pattern Recognition and Artificial Intelliigence, HuaZhong Univ. of Science and Technology);Fast Surface Interpolating Algorithm Based on Wavelet Transform[J];Signal Processing;2001-01
3 Guo Yu Qin Shuren Tang Baoping (Test Center of Mechanic Engineering College, Chongqing University Chon gqing, 400044);Method of Order Tracking Filtering of Rotating Machinery Based on Zero-Phase Distortion Digital Filtering with Segmentation Overlap[J];Journal of Vibration Engineering;2003-04
4 CHEN Long-dao, CHEN Yun (College of Electrical Engineering, Zhejiang University, Hangzhou 310027,China);SVD algorithm in frequency domain for frequency component of interharmonics[J];Journal of Zhejiang University(Engineering Science);2004-04
5 KONG Qing-peng,SONG Kai-chen,CHEN Ying(State Key Laboratory of Fluid Power Transmission and Control,Zhejiang University,Hangzhou 310027,China);Study on least-square adaptive filter order tracking in rotating machinery[J];Journal of Zhejiang University(Engineering Science);2006-09
6 QIAN Hao, ZHAO Rong-xiang (College of Electrical Engineering, Zhejiang University, Hangzhou 310027, Zheiiang Province, China);INTERHARMONICS ANALYSIS BASED ON INTERPOLATION FFT ALGORITHM[J];Proceedings of the Csee;2005-21
7 WU Jing, ZHAO Wei (State Key Lab of Power Systems, Dept. of Electrical Engineering, Tsinghua University, Haidian District, Beijing 100084, China);An Algorithm of MICA for Analyzing Harmonics in Power System[J];Proceedings of the CSEE;2006-08
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved