Interaction and multiscale mechanics

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Vibration simulation of a multi-story high-speed railway station

  • Gao, Mangmang (Research & Development Center, China Academy of Railway Sciences) ;
  • Xiong, Jianzhen (Research & Development Center, China Academy of Railway Sciences) ;
  • Xu, Zhaojun (Railway Engineering Research Institute, China Academy of Railway Sciences)
  • Received : 2010.09.03
  • Accepted : 2010.10.22
  • Published : 2010.12.25
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Abstract

Station is an important building in high-speed railway, and its vibration and noise may significantly affect the comfort of waiting passengers. A coupling vibration model for train-structure system is established to analyze and evaluate the vibration level of a typical waiting hall under dynamic train load. The motion of a four-axle vehicle with two suspension system is modeled in multi-body dynamics with linear springs and dampers employed. The station is modeled as a whole finite element structure which is 113 m in longitudinal and 163.5 m in lateral, and the stiffness of the station foundation is considered. According to the assumptions that both wheel and rail are rigid bodies and keep contact to each other in vertical direction, and the wheel/rail interaction and displacement coordination in horizontal direction is defined by the simplified Kalker creep theory, the vehicle spatial vibration model has 27 degrees-of-freedom. An overall analysis procedure is made of the train moving through the station, by which the dynamic responses of the train and the station are calculated. According to the comparison between analysis and test results, the actual connection status between different parts of the station is estimated and the vibration level of the waiting hall is evaluated.

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