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AN Qi, LI Fu. Influence of structure mode on distortion stiffness of bogie frame[J]. Journal of Traffic and Transportation Engineering, 2008, 8(6): 1-5.
Citation: AN Qi, LI Fu. Influence of structure mode on distortion stiffness of bogie frame[J]. Journal of Traffic and Transportation Engineering, 2008, 8(6): 1-5.
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Influence of structure mode on distortion stiffness of bogie frame

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

Funds:

National Natural Science Foundation of China 50521503

National Key Technology R & D Program of China 2007BAG05B00

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  • Author Bio:

    AN Qi (1983-), Male, Qinxian, Shanxi, Doctoral Student of Southwest Jiaotong University, Research on Vehiche Design, +86-28-87601882, anqi-nd5@vip.sina.com

    LI Fu (1957-), Male, Kunming, Yunnan, Professor of Southwest Jiaotong University, PhD, +86-28-87601881, lifu@home.swjtu.edu.cn

  • Received Date: 2008-07-22
  • Publish Date: 2008-12-25
    Abstract
  • The H-type welding frame of passenger car bogie was simplified to the model composed of straight girders with uniform sections, the measures to reduce the distortion stiffness of the bogie frame was researched by observing the deformation distributions of different girders under distortion load, and verified by using FEM. It is pointed that the distortion stiffness of the frame can be reduced by 3% when slotting on the cover plate of side sill, when changing the section of transom, the stiffness can be reduced by 19%, and the maximum von_Mises stress under over load can be reduced by 3%. The result indicates that there is less influence on the stiffness when slotting on the cover plate of side sill, but it will cause strong stress concentration in local areas. The bending and distortion stiffnesses of transom should affect the distortion stiffness of the frame strongly. Changing circular section to box section can reduce the distortion stiffness of the frame obviously. The maximum von_Mises stress of the frame under over load situation is lower because of the reduction of the distortion stiffness. The influence of track warping load on the strength of the frame has abated.

     

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    • References(13)
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