Trade-off aproaches for the vibroacoustic analysis of trains

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


Título: Trade-off aproaches for the vibroacoustic analysis of trains
  • Sorribes Palmer, Felix
  • Ghaemi Nasab, Mohsen
  • Chimeno Manguan, Marcos
  • Alonso Rodrigo, Gustavo
Tipo de Documento: Ponencia en Congreso o Jornada (Artículo)
Título del Evento: 11th International Conference on Vibration Problems
Fechas del Evento: 09/09/2013 - 12/09/2013
Lugar del Evento: Lisbon, Portugal
Título del Libro: Trade-off aproaches for the vibroacoustic analysis of trains
Fecha: 2013
Escuela: Instituto de Microgravedad Ignacio Da Riva (UPM)
Departamento: Otro
Licencias Creative Commons: Reconocimiento - Sin obra derivada - No comercial

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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.

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Depositado por: Memoria Investigacion
Depositado el: 02 May 2015 09:53
Ultima Modificación: 02 May 2015 09:53
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