Numerical and experimental approach for the evaluation of severe longitudinal dynamics of heavy freight trains
VEHICLE SYSTEM DYNAMICS(2009)
摘要
The paper presents an analysis of heavy freight train dynamics carried out both from a numerical and experimental point of view. A numerical procedure has been developed to investigate the dynamics of heavy freight trains; the proposed methodology combines a new numerical model designed for the longitudinal dynamics of the whole trainset called TSDyn (TrainSet Dynamics simulator) with a multibody code named MoNSTram (Modular Non-Stationary TRAMcar dynamics simulator) originally developed to analyse the dynamics of modular tramcars and used for a more detailed investigation of the response of a trainset segment. On-line tests have been carried out aiming at acquiring data both for the validation of the simulation code and for the characterisation of buffers' response. A numerical analysis is eventually presented to show the effect of trainset composition on running safety.
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关键词
freight train,numerical analysis,on-line tests,running safety
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