• ISSN 0258-2724
  • CN 51-1277/U
  • EI Compendex
  • Scopus
  • Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
  • Chinese S&T Journal Citation Reports
  • Chinese Science Citation Database
Volume 22 Issue 6
Mar.  2010
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Article Contents
CHEN Lei, ZENG Yuqing, YU Weidong. Bayesian Estimation of Vehicle Dynamic Performance by Rail Measurement[J]. Journal of Southwest Jiaotong University, 2009, 22(6): 893-899.
Citation: CHEN Lei, ZENG Yuqing, YU Weidong. Bayesian Estimation of Vehicle Dynamic Performance by Rail Measurement[J]. Journal of Southwest Jiaotong University, 2009, 22(6): 893-899.

Bayesian Estimation of Vehicle Dynamic Performance by Rail Measurement

  • Received Date: 03 Sep 2008
  • Publish Date: 20 Jan 2010
  • An assessment technique that assesses vehicle dynamic performance using the data of rail measurement was developed by Bayesian estimation principle.The assessing data of dynamic performance were obtained from the on-board and on-ground monitoring in the 35×104 km reliability tests of China speed up wagons at the velocity of 120 km/h.A probability model about the relationship between on-ground and on-board monitoring data was built by applying the Parzen’s window method and an improved two-dimensional interpolation technique to smoothen the probability density functions.The derailment coefficient of the speed up wagons was assessed according to the on-ground data.The result shows that the derailment coefficient of the existing speed up wagons in China is up to 1.2613.

     

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