Abstract：Research purposes: Track irregularity is the main sources to induce the vibration of vechicle and track structure．For different types of track irregularity，the stimulation and disturbance direction and impact level are different．And the amplitude and wavelength of track irregularity produce significant effect on the dynamic Mcharacteristics of vehicle and track structure．So the study Can be done on revealing the power spectrums of track irregularity characteristics from the amplitude and wavelength to better know the vibration characteristics of vehicle．
Research conclusions:From the measured data of the track irregularity of Wuhan—Jiujiang Railway Line，the distribution functions of the power spectrums of the track irregularity are obtained．According to the measured acceleration of the vehicle vibration。the analysis iS made for correlation between the different track irregularities and vibration acceleration and the most unfavorable wavelength that brings about the vehicle vibration is known．
Lian Songliang．Study of the Detrimental Wavelengths of Track lrregularities for Railway with Passengers and Freight Track[J]．Journal of the China Railway Society，2004(2)：112—116．
[4] 王济，胡晓．Matlab在振动信号中的应用[M]．北京：中 国水利水电出版社。2006．
Wang Ji，Hu Xiao．Matlab in Vibraiton Singnais AppHction[M]．BeiJing：China Water Resources and Hydropower Press，2006．
[5]胡广书．数字信号处理[M]．北京：清华大学出版社， 2003．
Hu Guangshu．The Digital Singnai Process[M]． Beijing：Tsinghua University Press，2003．
[6] Y．Q．San，M．Dhanasekar．A Dynamic Model for the Vertical Interaction of the Rail Track and Wagon System[J]．International Journal of Solids and Structures，2002(39)：1337—1359．
[7]X．Sheng，C．J．C Jones and D．J．Thompson．A Theoritical Model for Ground Vibration from Trains enerated by Vertical Irregularities[J]．Journal of Sound and Vibration，2004(272)：937—965．
[8] G．Sanssine，C．Cholet，P．E．Gautier，F．Dubois， C．Bohatier。J．J．Moreau．Modelling ballast behaviour under dynamic loading．Pan 1：A 2D polygonal discrete element method approach[J]．Computer Methods in Applied Mechanics and Engineering，2006(195)：2841— 2859．
[9] Katsushi MANABE．Muliple—wheel Induced Vibration of Rail with Surface Irregularities，Paper[z]．Chief Research and Development Promotion Div．
[10]Yean—Seng Wu and Yeong—Bin Yang．Steady—state Response and Riding Comfort of Trains Moving Over a Series of Simply Supported Bridges[J]．Engineering Structures，2003(25)：251—265．
2010, Vol. 27 
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