Development of a Combat Vehicle FEA Tire Model for Off-Road Applications

Paper #:
  • 2013-01-0632

Published:
  • 2013-04-08
DOI:
  • 10.4271/2013-01-0632
Citation:
Ragheb, H., El-Gindy, M., and Kishawy, H., "Development of a Combat Vehicle FEA Tire Model for Off-Road Applications," SAE Technical Paper 2013-01-0632, 2013, doi:10.4271/2013-01-0632.
Pages:
11
Abstract:
Off-road vehicle performance of a multi-wheeled 8×8 combat vehicle is strongly affected by the tire-terrain interaction characteristics. Soft soil reduces traction and modifies vehicle handling; therefore tire dynamics play a strong role in off-road mobility evaluation.In this paper three-dimensional, non-linear Finite Element Analysis (FEA) off-road tire models are developed using PAM-CRASH and the general trends of vertical load-deflection, cornering characteristics and aligning moment on rigid terrains are predicted and compared with published, measured data of a similar tire for validation purposes.The FEA off-road tire models are used to investigate the multi-pass behavior of the wheels running and steering on soft terrain. The steering characteristics of the multi-wheels are also predicted for the purpose of the development of tire-soft soil empirical equations for future research work.
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