Analysis of the effectiveness of vertical load, forward speed and passing parameters on soil stress

In the study of investigating soil-tire interaction, the overall characteristics of the soil, vertical load on the wheel, and tire specifications are influential factors. Due to the complexity and unpredictable behavior of soil, estimating stress at the tire-soil contact surface poses a significant challenge. Most models and methods for studying soil stress have examined the influential factors on soil empirically or semi-empirically. The three parameters of vertical load, forward velocity, and number of passes have the greatest impact on soil stress. Experiments were conducted at three levels of vertical load, four levels of wheel movement in the soil bin, and ۱۵ levels of passes, with three repetitions. The Taguchi statistical method was employed to determine the effectiveness and intensity of the parameters' effects. The results obtained from the statistical analyses demonstrated that the parameters have a significant impact on stress, with weight and dynamic contact length having the greatest influence on stress levels, while the number of passes had a lesser effect compared to the other two parameters

کلیدواژه ها:

Soil stress ، Dynamic contact length ، Soil-tire interaction ، Soil bin ، Taguchi method.