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Mechanics in Engineering ›› 2018, Vol. 40 ›› Issue (5): 495-502.doi: 10.6052/1000-0879-18-120

• Applied Research • Previous Articles     Next Articles

MOVING MODEL ANALYSIS OF THE INITIAL COMPRESSION WAVE IN TUNNEL FOR HIGH-SPEED TRAINS1)

GUO Yi*, SHAN Dongri*, GUO Dilong†,2), YANG Guowei, DU Jian**   

  1. *(School of Mechanical & Automotive Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China);
    (Key Laboratory for Mechanics in Fluid Solid Coupling Systems, Institute of Mechanics, Chinese Academy of Sciences, Beijing 100190, China);
    **(CRRC Qingdao Sifang Co. Ltd., Qingdao 266111, Shandong, China)
  • Received:2018-03-28 Online:2018-10-15 Published:2018-11-14

Abstract:

The influence of the cross section on the initial compression wave is studied by using the moving model experiment in this paper. The results show that the initial compression wave variation is the combined result of the average cross-sectional area and the cross-sectional area distribution of a high-speed train streamlined nose when the train's max cross section and the streamlined nose length are the same. The average cross-sectional area affects the magnitude of the initial compression wave, and the cross-sectional area distribution affects the pressure gradient of the initial compression wave, therefore, affects the pressure dissipation of the initial compression wave propagating in the tunnel.

Key words:

high-speed train|moving model experiment|tunnel|initial compression wave|distribution of cross-sectional area

CLC Number: 

  • U292