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LIU Yu-yu, GE Yu-mei, YANG Yi-ren. Vibration characteristic of coupled system for straddle type monorail beam and train[J]. Journal of Traffic and Transportation Engineering, 2010, 10(2): 46-53. doi: 10.19818/j.cnki.1671-1637.2010.02.009
Citation: LIU Yu-yu, GE Yu-mei, YANG Yi-ren. Vibration characteristic of coupled system for straddle type monorail beam and train[J]. Journal of Traffic and Transportation Engineering, 2010, 10(2): 46-53. doi: 10.19818/j.cnki.1671-1637.2010.02.009
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Vibration characteristic of coupled system for straddle type monorail beam and train

doi: 10.19818/j.cnki.1671-1637.2010.02.009

  • School of Mechanics and Engineering, Southwest Jiaotong University, Chengdu 610031, Sichuan, China

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  • Author Bio:

    LIU Yu-yu(1981-), male, doctoral student, +86-28-87600790, mars-1@163.com

    YANG Y-i ren(1959-), male, professor, +86-28-87600790, yangyiren05@126.com

  • Received Date: 2009-11-25
  • Publish Date: 2010-04-25
    Abstract
  • Each car of monorail train was idealized as a dynamic system with 15 degrees of freedom and its differential equations were derived by using Lagrange formulation. Track beam was idealized as Euler beam.The governing equations of motion for the coupled system of straddle type monorail beam and train were derived based on the energy method and the concert conditions of the displacements between train and monorail beam. The dynamic responses of the coupled system was studied. The calculated result of dynamic response of monorail beam was compared with the test data at different speeds. The result shows that the effect of train speed on the deflections of beam are less than the effect on the acceleration. The acceleration increases with the increase of train speed and reaches the highest value at 40~50 km·h-1, then decreases with the increase of train speed. Tire model and the beam's surface roughness power spectral density function have greater effect on the calculated result of the lateral responses, and make computation error increase.

     

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    • References(11)
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