• ISSN 0258-2724
  • CN 51-1277/U
  • EI Compendex
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  • Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
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Volume 18 Issue 4
Aug.  2005
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Article Contents
ZHANG Li-min ZHANG Wei-hua, . M echanism and ExperimentalFormation ofW heel/RailCorrugation[J]. Journal of Southwest Jiaotong University, 2005, 18(4): 435-439.
Citation: ZHANG Li-min ZHANG Wei-hua, . M echanism and ExperimentalFormation ofW heel/RailCorrugation[J]. Journal of Southwest Jiaotong University, 2005, 18(4): 435-439.

M echanism and ExperimentalFormation ofW heel/RailCorrugation

  • Publish Date: 25 Aug 2005
  • The relationship betweenwheel/rail(W /R) corrugation and thewavelength of longitudinal self-vibration and the longitudinal axis of contactellipsewas analyzed based on the nonlinear vibration and Hertzian theories. The analysis shows that the mechanism of W /R corrugation is that the wavelength of longitudinal self-vibration is larger than the longitudinal axis ofcontactellipse; for a real W /R system, the criterion is that the lateral displacement of the wheelset is larger than a critical value. Numerical simulation and testwere conducted to verify the proposedmechanism and criterion. The simulation results show thatcorrugationswith lengthsbetween 16 to20mm appearwhen the lateral displacementof thewheelset is 8 mm. Corrugation testwas conducted on a rolling vibration test rig. Corrugations form when the lateraldisplacements of thewheelsetare 8 and 11mm, and the lengths are about20 mm and 18 to 27 mm, respectively, under the former and the latter conditions. There is no obvious corrugationwhen the lateral displacement is 6 mm.

     

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      沈阳化工大学材料科学与工程学院 沈阳 110142

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