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Influence of Subway LIM Train Wheel Polygonization on the Vibration and Sound Radiation Characteristics of It

  • J. Y. Fang
  • X. B. Xiao
  • L. Wu
  • X. S. Jin
Part of the Notes on Numerical Fluid Mechanics and Multidisciplinary Design book series (NNFM, volume 118)

Summary

This paper presents a combined FEM-BEM acoustic prediction model to calculate the effect of polygonal wheels on the vibration and sound radiation of subway LIM train wheel. In the analysis procedure a three-dimensional model for the wheel is firstly put forward and the “Block Landzos” method is used to calculate the natural frequencies of the wheel. Secondly the method of modal superposition is used to determine the dynamical response of the wheel to the vertical excitation of the running surface roughness. Finally the velocity response of the wheel boundary is treated as the boundary input of the boundary model of the wheel sound radiation which calculates the sound radiation of the wheel. The numerical analysis considers the effect of the excitation of the polygonal wheels at the different wear stages on the vibration and acoustic radiation characteristics of the wheels, in which the data regarding the polygonal wear of the wheels are from the site measurements. The numerical results obtained show that the polygonal wheels have a significant influence on the wheel noise radiation. They can provide the important references in the design of the measures against rolling noise at the source by maintaining the surface conditions of the wheel and rail.

Keywords

Sound Pressure Level Sound Radiation Noise Radiation Railway Wheel Wear Stage 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    Thompson, D.J., Jones, C.J.C.: A review of the modeling of wheel/rail noise generation. Journal of Sound and Vibration 231(3), 519–536 (2000)CrossRefGoogle Scholar
  2. 2.
    Thompson, D.J.: Railway Noise and Vibration, 1st edn. Elsevier, Amsterdam (2009)Google Scholar
  3. 3.
    Barke, D.W., Chiu, W.K.: A review of the effects of out-of-round wheels on track and vehicle components. Part F: Rail and Rapid Transit. 219, 151–175 (2000)CrossRefGoogle Scholar
  4. 4.
    Li, Z.: Detailed SYSNOISE Rev 5.6. National Defense Industry Press, Beijing (2005) (in Chinese)Google Scholar
  5. 5.
    Thompson, D.J., Jones, C.J.C.: Sound radiation from a vibrating railway wheel. Journal of Sound and Vibration 253(2), 401–419 (2002)CrossRefGoogle Scholar
  6. 6.
    Thompson, D.J.: Wheel-rail noise generation, Part II: wheel vibration. Journal of Sound and Vibration 161(3), 401–420 (1993)CrossRefGoogle Scholar
  7. 7.
    International Standard. ISO 3095: 2005 Railway Applications. Acoustics Measurement of noise emitted by rail bound vehicles. International Organization for Standardization (2005)Google Scholar

Copyright information

© Springer 2012

Authors and Affiliations

  • J. Y. Fang
    • 1
  • X. B. Xiao
    • 1
  • L. Wu
    • 1
  • X. S. Jin
    • 1
  1. 1.State Key Laboratory of Traction PowerSouthwest Jiaotong UniversityChengduChina

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