A Experimental Study on the ground Vibrations Induced by Ballastless Truck Running

GE Yong;ZHANG Xiqian.;XIAO Zhengzhi;YAN Chunfeng;ZHAN Yongxiang

Journal of Vibration and Shock ›› 2010, Vol. 29 ›› Issue (11) : 209-212,.

PDF(1940 KB)
PDF(1940 KB)
Journal of Vibration and Shock ›› 2010, Vol. 29 ›› Issue (11) : 209-212,.
论文

A Experimental Study on the ground Vibrations Induced by Ballastless Truck Running

  • GE Yong1;ZHANG Xiqian1.2;XIAO Zhengzhi1;YAN Chunfeng3;ZHAN Yongxiang3
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Abstract

In order to study the vertical acceleration decay laws of ground vibration, the field vibration induced by impetus locomotive CRH2 were measured on the SuiYu ballastless truck. Through establishing the empirical formula of vertical acceleration vibration level decay laws on the basis of least-squares criterion , the analysis shows that the first-order exponential function is better than quadratic polynomial function in the fitting the experiment data. Based on the EMD and HHT, Comparative analysis shows that using Hilbert spectrum to study on the vibration is more suitable for than using that of Fourier spectrum

Key words

Ballastless truck / Environmental vibration / Field experiments / one third octave spectrum / Marginal Hilbert spectrum.

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GE Yong;ZHANG Xiqian.;XIAO Zhengzhi;YAN Chunfeng;ZHAN Yongxiang. A Experimental Study on the ground Vibrations Induced by Ballastless Truck Running[J]. Journal of Vibration and Shock, 2010, 29(11): 209-212,
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