• ISSN 0258-2724
  • CN 51-1277/U
  • EI Compendex
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Volume 21 Issue 1
Feb.  2009
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Article Contents
ZHOU Wen, LIU Xueyi. FEM Simulation of Straightening Tongue Rail of High-Speed Turnout[J]. Journal of Southwest Jiaotong University, 2008, 21(1): 82-85,95.
Citation: ZHOU Wen, LIU Xueyi. FEM Simulation of Straightening Tongue Rail of High-Speed Turnout[J]. Journal of Southwest Jiaotong University, 2008, 21(1): 82-85,95.

FEM Simulation of Straightening Tongue Rail of High-Speed Turnout

  • Received Date: 28 May 2007
  • Publish Date: 25 Feb 2008
  • To provide a theoretic reference for straightening the tongue rail of high-speed turnouts,a finite element model for tongue rail was proposed using three dimensional solid finite elements.The effects of loading distance,loading mode and loading value on the plastic deformation,stress and lineshape of tongue rail were analyzed.The research results show that to a given loading value,the plastic deformation of tongue rail decreases with the increase of loading distance,and the straightening value changes gradually from excess to insufficiency;and to a given loading distance,the plastic deformation of tongue rail rises with the increase of loading value,and the straightening value changes gradually from insufficiency to excess.The straightening mode of vertical loading and lateral constraints on rail foot can improve the lineshape of tongue rail.As a result, a great loading distance,a small loading value and lateral constraints on rail foot should be adopted in the straightening of tongue rail.

     

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