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Assessing the ground vibrations produced by a heavy vehicle traversing a traffic obstacle

Ducarne, Loïc ; Ainalis, Daniel ; Kouroussis, Georges

The Science of the total environment, 2018-01, Vol.612, p.1568-1576 [Periódico revisado por pares]

Netherlands: Elsevier B.V

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  • Título:
    Assessing the ground vibrations produced by a heavy vehicle traversing a traffic obstacle
  • Autor: Ducarne, Loïc ; Ainalis, Daniel ; Kouroussis, Georges
  • Assuntos: Finite element analysis ; Traffic-induced ground vibrations ; Tyre-road interaction ; Vehicle dynamics ; Wave propagation
  • É parte de: The Science of the total environment, 2018-01, Vol.612, p.1568-1576
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descrição: Despite advancements in alternative transport networks, road transport remains the dominant mode in many modern and developing countries. The ground-borne motions produced by the passage of a heavy vehicle over a geometric obstacle (e.g. speed hump, train tracks) pose a fundamental problem in transport annoyance in urban areas. In order to predict the ground vibrations generated by the passage of a heavy vehicle over a geometric obstacle, a two-step numerical model is developed. The first step involves simulating the dynamic loads generated by the heavy vehicle using a multibody approach, which includes the tyre-obstacle-ground interaction. The second step involves the simulation of the ground wave propagation using a three dimensional finite element model. The simulation is able to be decoupled due to the large difference in stiffness between the vehicle's tyres and the road. First, the two-step model is validated using an experimental case study available in the literature. A sensitivity analysis is then presented, examining the influence of various factors on the generated ground vibrations. Factors investigated include obstacle shape, obstacle dimensions, vehicle speed, and tyre stiffness. The developed model can be used as a tool in the early planning stages to predict the ground vibrations generated by the passage of a heavy vehicle over an obstacle in urban areas. [Display omitted] •Two-step model to simulate ground vibrations of a truck driving over a speed hump.•Step 1 employs a multibody approach to model the truck and tyres.•Step 2 makes use of a finite element analysis to simulate ground wave propagation.•Three obstacle types examined: trapezoidal, half-sinusoidal, and Watts profile.•Sensitivity analysis on the influence of obstacle geometry, vehicle speed, etc.
  • Editor: Netherlands: Elsevier B.V
  • Idioma: Inglês
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  • Realização: ABCD-USP USP   Logos de Redes Sociais: Freepik

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