• ISSN 0258-2724
  • CN 51-1277/U
  • EI Compendex
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  • Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
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  • Chinese Science Citation Database
Volume 21 Issue 4
Aug.  2008
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Article Contents
ZHANG Limin, CHEN Lin. Effects of Modal Parameters on Ride Comfort Index under Harmonic Excitation[J]. Journal of Southwest Jiaotong University, 2008, 21(4): 465-468,472.
Citation: ZHANG Limin, CHEN Lin. Effects of Modal Parameters on Ride Comfort Index under Harmonic Excitation[J]. Journal of Southwest Jiaotong University, 2008, 21(4): 465-468,472.

Effects of Modal Parameters on Ride Comfort Index under Harmonic Excitation

  • Received Date: 10 Jan 2008
  • Publish Date: 25 Aug 2008
  • An expression of the vertical ride comfort index of rail vehicles was derived by modal coordinate transform and described by modal parameters.The effects of modal parameters,i.e.modal frequency and mode,on the ride comfort index were studied by taking a secondary suspension system of a railway vehicle with 15-DOFs as an example.The research indicates that the comfort index is affected greatly by the modal frequencies of the vehicle body,different modal damping ratios have obvious different effects,and the effect of the first order modal damping ratio is greater than that of the second order modal damping ratio is.

     

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