Abstract
Abstract The aim of the paper is to present the experimental results for material model of the sand, case of wet and dry probe. Since traction and side forces derivation methodology and tire-round interaction models for on-road vehicles are widely described, there is a lack of methods for off-road vehicles. The methodology, presented in this work, includes test in various ground conditions and different driving direction. Test results, presented in the paper were acquired for dry and humid sand, for various tire tilt angle. Traction and side forces were acquired and then will be used for black-box model parameters identification of the wheel-ground interaction.
Highlights
The area of application of the model described in this paper is an investigation of propulsion system performance for all-terrain vehicles
Since on-road vehicles wheel-road interaction models and traction characteristics are well investigated and various models is presented, there is a need of the off-road vehicles behavior identification based on wheel-surface
The off-road vehicles have significantly higher energy consumption due to higher traction resistance compared to railway and on-road cases
Summary
The area of application of the model described in this paper is an investigation of propulsion system performance for all-terrain vehicles. Since on-road vehicles wheel-road interaction models and traction characteristics are well investigated and various models is presented, there is a need of the off-road vehicles behavior identification based on wheel-surface. The off-road vehicles have significantly higher energy consumption due to higher traction resistance compared to railway and on-road cases. Rolling resistance and grip are strongly related to terrain characteristics. Another parameter increasing the rolling resistance is tire pressure lower than in case of on-road vehicles in comparison to on-road solutions. In case of off-road vehicles, surface cannot be considered as a rigid body and, in consequence, the interaction model formulation method should take into account ground plastic deformation
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