Abstract:Aiming at the problem that the power consumption of straw countersfield is difficult to test, this paper proposes a virtual test platform evaluation countersfield set power consumption method. Firstly, the dynamic model of straw countersfield was established. The boundary conditions and loads were set up. The virtual simulation of power consumption in straw countersfield was carried out with the buried depth of 120mm and 90mm, forward speed of 3km/h and 5km/h, rotation speed of 260r/min and 230r/min, respectively. Then the field power test system was built and the relative errors were 9.06% and 8.02% respectively by comparing the simulation data. The accuracy and feasibility of the proposed method were verified. Finally, 18 conditions (three buried depths, two forward speeds, and three rotating speeds) were selected to carry out the simulation. The results show that, with a certain buried depth, the straw countersfield set power consumption has an increasing linear relationship with forward speed and rotation speed. With a certain buried depth and forward speed, the lowest power consumption appeared at the rotation speed of 230r/min. Moreover, with a larger buried depth and forward speed, the effect of rotation speed on the power consumption is obvious.