simulation of tire-soil interaction using nonlinear finite element method with matlab

in this study, a simulation of tire–soil interaction model was considered with special view to two-dimensional (2-d) fem model of carcass. coefficients of mechanical behavior of silty-loam soil were accurately measured to obtain an effective simulation. the results of simulation which was implemented in matlab7, showed that the radial-ply tire had greater tractive efficiency than bias tire at the same conditions on silty-loam soil. bias-ply tire had greater motion reduction (slip) and gross traction had slightly greater than radial-ply tire when the net traction force was the same for each tire. also results of simulation and tests showed that the radial-ply tire had less rolling resistance than bias-ply tire on silty-loam soil at the same conditions. based on simulation results, the effects of slip, inflation pressure and mechanical stiffness of soil on tractive efficiency were satisfactorily predicted.