Applied Acoustics

Liu X., Zhang J., Thompson D., LatorreIglesias E., Squicciarini G.,Hu Zh., Toward M. & Lurcock D.

When high-speed trains travel above 300 km/h aerodynamic noise becomes increasingly important. One source is the pantograph, on top of the train, which is more difficult to shield by using noise barriers. To understand pantograph noise we have developed a component-based model which takes account of realistic incoming flow conditions during train pass-by. We have compared the results of this model with measurements on running trains using a microphone array with 90 microphones. The good agreement confirms that the model can be used to help in the design of pantographs and high-speed trains more generally.

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