Evaluation of Tire Footprint in Soil Using an Innovative 3D Scanning Method

This paper presents the results of measurement tire footprints in soil. The research was conducted under laboratory conditions using soil-filled cases. objects were two tires: a radial and bias-ply same size. variable parameters vertical load (7.8 kN, 15.7 23.5 kN) inflation pressure (0.8 bar, 1.6 2.4 bar). Test benches with mounted tire, soil case, 3D scanner used research. Using test bench, loaded each pressure, footprint generated Then, to scan footprint, length, width, depth, tire–soil contact area (as spatial image) evaluated special software. mathematical models formulated (separately for type tire) describe as function pressure. It found that depth is an important parameter influences value. However, it also right combination load, longer wider, but shallower, can be generated, value which similar deeper footprint.