Titlebook: Noise and Vibration Mitigation for Rail Transportation Systems; Proceedings of the 1 Geert Degrande,Geert Lombaert,David A. Towers Conferen

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弄皺

Development of New Low-Noise Pantograph for High-Speed Trainsas countermeasures for these noise sources, we conducted wind tunnel tests and numerical simulations to test for improved shapes. As a result, we developed a new pantograph (PS9040), with 1.5?dB less aerodynamic noise than the PS208.

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AMOR

1612-2909 is and mitigation.Covers noise perception, design criteria, .This book reports on the 13th International Workshop on Railway Noise (IWRN13), held on September 16-20, 2019, in Ghent, Belgium. It gathers original peer-reviewed papers describing the latest developments in railway noise and vibration, a

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Measurement and Reduction of the Aerodynamic Bogie Noise Generated by High-Speed Trains in Terms of a gear unit. Three countermeasures were used herein to control the flow at the upstream of the bogie (i.e., two-dimensional deflector, three-dimensional (3D) deflector, and bottom lowering). Consequently, the aerodynamic bogie noise is properly reduced by the 3D deflector and bottom lowering.

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Pass-By Noise Assessment of High Speed Units by Means of Acoustic Measurements in a Perimeter Close aph recess, inter-coach gaps, front of train, connection cables, low-level turbulences, high level noise, etc. This paper proposes an improved methodology for acoustic characterization that although more difficult than the procedures described in the standard ISO 3095, is not as difficult as acoustical analysis based on microphone arrays.

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