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There has been an increasing demand of obtaining higher levels of downforce to enhance vehicle traction, thus vehicle performance. This has led to extreme aerodynamic developments most notably in the addition of ground effect by adding aerodynamic elements on a vehicle’s floor. However, harnessing ground effect can have its fair share of problems, and bad vehicle setups and suspension tuning can lead to unpredictable oscillations of the body. This problem has been observed especially in motorsports like Formula One. By designing simplified floor geometries, performing CFD simulations, and mathematically modelling a vehicle’s suspension, this particular work aims at presenting a computationally effective methodology to analyse such problems and choose suspension parameters. The aim of this research is to present a connection between the change in downforce experienced by an airfoil in ground effect and the suspension model, which can be further applied to more detailed geometries.

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Analysing Vibrations Produced by a Ground-Effect Based Vehicle Floor Through Computational Models

  • 会议论文

  • 发表日期：

    2025年

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  • Pranshu Vyas,
  • Tarun Desai,
  • Raaghav Dubey,
  • Pushkar Sapre,
  • G. R. Sabareesh

摘要

There has been an increasing demand of obtaining higher levels of downforce to enhance vehicle traction, thus vehicle performance. This has led to extreme aerodynamic developments most notably in the addition of ground effect by adding aerodynamic elements on a vehicle’s floor. However, harnessing ground effect can have its fair share of problems, and bad vehicle setups and suspension tuning can lead to unpredictable oscillations of the body. This problem has been observed especially in motorsports like Formula One. By designing simplified floor geometries, performing CFD simulations, and mathematically modelling a vehicle’s suspension, this particular work aims at presenting a computationally effective methodology to analyse such problems and choose suspension parameters. The aim of this research is to present a connection between the change in downforce experienced by an airfoil in ground effect and the suspension model, which can be further applied to more detailed geometries.