JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE) ›› 2011, Vol. 41 ›› Issue (3): 126-130.

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Vibration characteristic analysis of a vehicle-rail-steel
spring floating slab track coupling system

SUN Xiaojing, LI Shucai, ZHANG Dunfu, XUE Yiguo, SUN Zheng, NIE Yiguo   

  1. Geotechnical and Structural Engineering Research Center, Shandong University, Jinan 250061, China
  • Received:2011-04-08 Online:2011-06-16 Published:2011-04-08

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Abstract:

A vhicl-track dynamics analysis model was established according to the analytic dynamics theory. Then nature frequency and vibration mode of the system were obtained by modal analysis  and harmonic response analysis  that were carried out by ANSYS. The amplitude spectrum curves of the foundation reaction and force transmission rate were presented according to vibration theory. The riding comfort based on the Sperling index. The variation of riding comfort and foundation reaction were profiled with different steel spring stiffness and damping. The results showed that greater steel spring stiffness and damping means better riding comfort, smaller stiffness and greater damping means smaller foundation reaction.

Key words: steel spring, foundation reaction, riding comfort, coupling system

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