Trade-off aproaches for the vibroacoustic analysis of trains

Sorribes Palmer, Felix and Ghaemi Nasab, Mohsen and Chimeno Manguan, Marcos and Alonso Rodrigo, Gustavo (2013). Trade-off aproaches for the vibroacoustic analysis of trains. In: "11th International Conference on Vibration Problems", 09/09/2013 - 12/09/2013, Lisbon, Portugal. pp. 1-11.

Description

Title: Trade-off aproaches for the vibroacoustic analysis of trains
Author/s:
  • Sorribes Palmer, Felix
  • Ghaemi Nasab, Mohsen
  • Chimeno Manguan, Marcos
  • Alonso Rodrigo, Gustavo
Item Type: Presentation at Congress or Conference (Article)
Event Title: 11th International Conference on Vibration Problems
Event Dates: 09/09/2013 - 12/09/2013
Event Location: Lisbon, Portugal
Title of Book: Trade-off aproaches for the vibroacoustic analysis of trains
Date: 2013
Subjects:
Faculty: Instituto de Microgravedad Ignacio Da Riva (UPM)
Department: Otro
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Passengers’ comfort in terms of acoustic noise levels is a key design driver for train design. The problem is especially relevant for high speed trains, where the aerodynamic induced noise is dominant, but it is also important for medium speed trains where the mechanical sources of noise may have more influence. The numerical interior noise prediction inside the train is a very comp lex problem, involving many different parameters: complex geometries and materials, different noise sources, com- plex interactions among those sources, broad range of frequencies where the phenomenon is important, etc. In this paper, the main findings of this work developed at IDR/UPM (Instituto de Microgravedad “Ignacio Da Riva”, Universidad Politécnica de Madrid) are presented, concentrat ing on the different modelling methodologies used for the different frequency ranges of interest, from FEM-BEM models, hybrid FEM-SEA to pure SEA models. The advantages and disadvantages of the different approaches are summarized. Different modelling techniques have also been evaluated and compared, taking into account the various and specific geometrical configurations typical in this type of structures, and the material properties used in the models. The critical configuration of the train inside a tunnel is studied in order to evaluate the external loads due to noise sources of the train. In this work, a SEA-model composed by periodic characteristic sections of a high spee d train is analysed inside a tunnel.

More information

Item ID: 26213
DC Identifier: http://oa.upm.es/26213/
OAI Identifier: oai:oa.upm.es:26213
Official URL: http://www.icovp.com/components/com_breezingforms/uploads/636_paper0.pdf
Deposited by: Memoria Investigacion
Deposited on: 02 May 2015 09:53
Last Modified: 02 May 2015 09:53
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