A Study on Tire Non-Steady State Cornering Characteristics Using Experimental Modal Parameters

Paper #:
  • 2000-01-0362

Published:
  • 2000-03-06
Citation:
Guan, D., Shang, J., and Yam, L., "A Study on Tire Non-Steady State Cornering Characteristics Using Experimental Modal Parameters," SAE Technical Paper 2000-01-0362, 2000, https://doi.org/10.4271/2000-01-0362.
Pages:
9
Abstract:
Based on the modeling of tire vertical characteristics and steady state cornering properties, the model of tire nonsteady cornering is established in this paper using the tire modal parameters extracted experimentally. The dynamic deformation of tire footprint and the influence of tire width for self-aligning torque are taken into account. The footprint is segmented and the influence of speed on non-steady characteristics is included. The analytical formulae for calculation of transfer-function of lateral force and self-aligning torque with respect to lateral displacement and yaw angle are derived. The non-steady characteristics of tire under different loads can be calculated. The calculated results are consistent with the experimental results in the literature. This shows that the tire nonsteady model can be established conveniently using experimental modal parameters. The dynamic characteristics of tires under different working conditions can be calculated directly.
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