When driving a tractor in the field, the operating strength and the physiological load of an operator differ greatly from the steering mechanisms.
驾驶拖拉机作业时，驾驶员的作业强度与生理负荷随着拖拉机的转向机构的不同而有较大的差别。
2
The model can be used to analyze the effects of tractor and soil strength parameters on tractor performance, It is a useful tool for optimizing tractor performance in the field.
Results the finite element model of NTMA tractor for CAD was set up, which could predict the strength and displacement of every node and element of its own structure in the course of deforming.