Industrial Methodologies for the Prediction of Interior Noise Inside Railway Vehicles: Airborne and Structure Borne Transmission
This paper presents computational methods that are used by rolling stock manufacturers to predict noise inside vehicles. For airborne transmission, which dominates in the medium-high frequency range, a four-step procedure is applied: source description by their emitted sound power level, propagation of noise to the train’s exterior surface, panel transmission loss and acoustic response of the interior cavity. Reasonable agreement between computations and measurements is usually obtained, and the method makes it possible to rank the different source contributions and airborne transmission paths. Structure borne noise dominates in low frequencies. Finite Element models are used to improve car body design (dynamic stiffness at input points and carbody vibroacoustic transfers), but they do not cover the whole problem since the modelling of excitation from the bogie is not included. Recent research allowing the computation of blocked forces at car body input points and starting with wheel/rail interaction is briefly presented. Concerning source modelling, a focus is made on traction noise, including electromagnetic excitations in electric motors and mechanical excitations due to the meshing process inside gearboxes. Efficient computational methods and validation examples are presented. The coupling of these methods with optimization methods has great potential for improvement of motor noise and vibration design.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/isbn/9783030702885
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Supplemental Notes:
- © Springer Nature Switzerland AG 2021.
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Corporate Authors:
Springer Cham
Gewerbestrasse 11
Cham, Germany -
Authors:
- Bouvet, Pascal
- Rissmann, Martin
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Conference:
- 13th International Workshop on Railway Noise
- Location: Ghent , Belgium
- Date: 2019-9-16 to 2019-9-20
- Publication Date: 2021-4
Language
- English
Media Info
- Media Type: Web
- Edition: 1st Edition
- Features: References;
- Pagination: pp 41-54
- Monograph Title: Noise and Vibration Mitigation for Rail Transportation Systems: Proceedings of the 13th International Workshop on Railway Noise, 16-20 September 2019, Ghent, Belgium
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Serial:
- Notes on Numerical Fluid Mechanics and Multidisciplinary Design
- Volume: 150
- Publisher: Springer-Verlag
- ISSN: 1612-2909
- Serial URL: http://www.springer.com/series/4629
Subject/Index Terms
- TRT Terms: Noise sources; Predictive models; Railroad trains; Sound transmission; Traction drives; Vehicle interiors
- Subject Areas: Railroads; Vehicles and Equipment;
Filing Info
- Accession Number: 01874963
- Record Type: Publication
- ISBN: 9783030702885
- Files: TRIS
- Created Date: Feb 27 2023 9:33AM