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Aerodynamic Noise Reduction of a Pantograph by Shape-Smoothing of Panhead and Its Support and by the Surface Covering with Porous Material

  • M. Ikeda
  • T. Mitsumoji
  • T. Sueki
  • T. Takaishi
Part of the Notes on Numerical Fluid Mechanics and Multidisciplinary Design book series (NNFM, volume 118)

Summary

To reduce aerodynamic noise generated by a pantograph, which is one of the dominant noise sources of high-speed trains, the authors proposed some noise reduction techniques, that is, shape-optimization of a panhead, relaxation of aerodynamic interference between panhead and articulated frame and surface covering with porous material. To evaluate total noise reduction effect of them, wind tunnel tests were performed with a prototype pantograph to which these techniques were applied. The test results show that noise level of the prototype pantograph is lower than that of the currently-used pantograph by about 4 dB. Furthermore, it was also confirmed that the prototype pantograph has enough aerodynamic stability against change of attack angle.

Keywords

Porous Material Noise Reduction Noise Source Lift Force Wind Tunnel Test 
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

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    Suzuki, M., Ikeda, M., Yoshida, K.: Study on numerical optimization of cross-sectional panhead shape for high-speed train. J. of Mechanical Systems for Transportation and Logistics 1(1) (2008)Google Scholar
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    Yoshida, K., Suzuki, M., Ikeda, M.: Optimization of 2-Dimensional Shape of Pantograph Panhead for High Speed Trains. In: Proceeding of Inter Noise 2004, Prague, Czech (2004)Google Scholar
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    Ikeda, M., Mitsumoji, T.: Numerical Estimation of Aerodynamic Interference between Panhead and Articulated Frame. Quarterly Report of RTRI 50(4), 227–232 (2009)CrossRefGoogle Scholar
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    Sueki, T., Takaishi, T., Ikeda, M., Arai, N.: Application of porous material to reduce aerodynamic sound from bluff bodies. Fluid Dynamics Research, Res. 42, 015004 (2010)Google Scholar
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    Sueki, T., Ikeda, M., Takaishi, T.: Aerodynamic Noise Reduction using Porous Materials and their Application to High-speed Pantographs. Quarterly Report of RTRI 50(l), 26–31 (2009)CrossRefGoogle Scholar

Copyright information

© Springer 2012

Authors and Affiliations

  • M. Ikeda
    • 1
  • T. Mitsumoji
    • 1
  • T. Sueki
    • 2
  • T. Takaishi
    • 2
  1. 1.Railway Technical Research InstituteKokugunji-shiJapan
  2. 2.Railway Technical Research Institute, UmegaharaMaibara-shiJapan

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