Akbar Nazari Chamki

Abstract The interaction between vehicle tires and soil is important in various engineering and scientific fields, including agriculture and transportation. This study investigates the dynamics of the tire-soil contact area of an agricultural tire under varying vertical load and multiple passes. This study evaluated the effects of vertical load and tire passes on tire-soil contact area in a soil bin. Experiments were conducted with three vertical load levels (2, 3, and 4 kN) and 15 passes.

Abstract When vehicles pass over soil, ruts are created in the soil, the effect of which can be found in soil compaction. This research was conducted to investigate and rank the effect of vertical load, multiple passes, and forward speed on rut depth. The experiments included two types of wheels, three vertical loads (2, 3 and 4 kN), three forward speeds (1, 2, and 3 km/h), and fifteen passes levels. The data obtained were analyzed using statistical analysis and the Taguchi optimization method.