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conference paper

Analytical expression to calculate the suspension sag of vehicles.

[version 1; peer review: 2 minor revision]

16/09/2023| By
Felipe Felipe Vasquez
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Abstract

The suspension system of a vehicle is essentially conceived with two objectives: to provide comfort to the passengers and maintain tires in contact with the ground (roadholding). It is well known, however, that optimal comfort and roadholding cannot be achieved simultaneously since they require a different set of stiffness and damping. Simple models are used to comprehend the variables involved with which the response acceleration, tyre force and suspension displacements due to random roads had been derived, together with optimal suspensions. Nonetheless the required suspension travel and suspension sag have not been extensively discussed. In this article we derive expressions to determine the suspension travel and suspension sag (static compression) required to transit a random road. It was also analysed the case when the optimal suspensions are used, and the expressions where simplified. Lastly, a numerical example show that the derived equations provide reasonable values for a first approximation.

Submitted by16 Sep 2023
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Felipe Vasquez
University of Concepcion
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  • License: CC BY
  • Review type: Open Review
  • Publication type: Conference Paper
  • First published: 19 September 2023
  • Last published: 3 April 2024
  • Conference: The Evolving Scholar - BMD 2023, 5th Edition
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Jason Moore
Delft University of Technology
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