Coupling Effect of Agricultural Tire and Soil Based on Finite Element Analysis
This study focused on the coupling effects between agricultural tires and soil,a constitutive model for the tire-soil coupling system was constructed by using the finite element analysis method.Dynamic simulation analysis of the contact interaction between agricultural tires and soil was carried out,and the changes in tire traction and settlement under load,tire pressure,slip rate,pattern parameters,and soil conditions were obtained.The results showed that the traction force required for agricultural tires operating on the loam and sandy loam soil increased with the tire load and slip rate increasing,gradually decreased with the increase of tire pres-sure,and showed a trend of first increasing and then decreasing with the tire pattern number and pattern height increasing.The set-tlement of agricultural tires operating on the loam and sandy loam soil increased with the rise in the load and slip rate,gradually de-creased with the tire pressure increasing,and showed a trend of first increasing and then decreasing with the rise in the tire pattern number and pattern height.When maximizing the tire traction,the optimal parameter combination was load of 12 000 N,15 pairs of tread patterns,tread height of 36 mm,slip rate of 25％,loam soil,and tire pressure of 40 kPa.When minimizing the tire sinkage was the priority,the optimal combination was load of 3 000 N,10％slip rate,loam soil,tire pressure of 160 kPa,tread height of 17 mm,and 9 pairs of tread patterns.
Agricultural tireFinite element analysisTraction characteristics
万方数据
维普
