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On the interest of integrating vehicle dynamics for the ground propagation of vibrations: the case of urban railway traffic

Kouroussis, G. ; Verlinden, O. ; Conti, C.

Vehicle system dynamics, 2010-12, Vol.48 (12), p.1553-1571 [Periódico revisado por pares]

Colchester: Taylor & Francis

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  • Título:
    On the interest of integrating vehicle dynamics for the ground propagation of vibrations: the case of urban railway traffic
  • Autor: Kouroussis, G. ; Verlinden, O. ; Conti, C.
  • Assuntos: Applied sciences ; Exact sciences and technology ; finite element method ; ground vibration ; Machine components ; Mechanical engineering. Machine design ; multibody simulation ; Springs and dampers ; vehicle/track interaction
  • É parte de: Vehicle system dynamics, 2010-12, Vol.48 (12), p.1553-1571
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: This paper presents a complete numerical model for studying the vertical dynamics of the vehicle/track interaction and its impact on the surrounding soil, with the emphasis on vehicle modelling. A decoupling between the track and the soil is proposed, due to the difficulty of considering all the subsystem components. The train/track model is based on a multibody model (for the vehicle) and a finite element model (for the track). The soil is modelled using an infinite/finite element approach. Simulations of both models are carried out in the time domain, which is better able to simulate the propagation of the vibration waves and to take into account the possible nonlinearity of a component. The methodology is applied in the case of an urban tram track and validated with the available experimental data. Models for the tram, the track and the soil are described. Results from the complete model of the vehicle and a simple model, based on an axle load, are compared with experimental results and the benefits of a complete model in the simulation of the ground vibration propagation induced by railway vehicles are demonstrated. Moreover, a parametric study of the vehicle wheel type is conducted, which shows the advantage of a resilient wheel, for various rail defects.
  • Editor: Colchester: Taylor & Francis
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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