Abstract
For high-speed trains, the interior noise of the pantograph area is usually higher than other areas. A lot of achievements have been made to reduce the aerodynamic noise of the pantograph and its facilities. Yet, the exterior noise and vibration of the pantograph area is still much higher while the train operates at 300 km/h or more. So research on the vehicle structure is necessary.
Aiming at reducing the interior noise, operating tests were carried out to get the noise and vibration of the pantograph area and the force on the pantograph mounting. Spectrum characteristics and statistical laws all prove that the interior noise is closely related to the ceiling vibration.
In order to reduce the vibration, an absorber structure is proposed for the pantograph mounting. A specially designed real-car-simulating test bench is used to evaluate the application performance of the absorber. The test results show that the noise and vibration are significantly reduced after adopting the absorber.
The research of this article proposes a new thinking and method for interior noise reduction of the pantograph area from the aspect of vibration attenuation.
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Guo, J.Q., Ge, J.M., Sun, Z.J., Liu, S.Q., Zhao, Y.J., Lin, J.S. (2015). Pantograph Area Noise and Vibration Transmission Characteristics and Interior Noise Reduction Method of High-Speed Trains. In: Nielsen, J., et al. Noise and Vibration Mitigation for Rail Transportation Systems. Notes on Numerical Fluid Mechanics and Multidisciplinary Design, vol 126. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-44832-8_66
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DOI: https://doi.org/10.1007/978-3-662-44832-8_66
Publisher Name: Springer, Berlin, Heidelberg
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