Virtual Simulation and Power Test of Straw Counters-field Based on Multi-body Dynamics

Abstract:

Aiming at the problem that the power consumption of straw countersfield is difficult to test, this paper proposes a virtual test platform evaluation countersfield set power consumption method. Firstly, the dynamic model of straw countersfield was established. The boundary conditions and loads were set up. The virtual simulation of power consumption in straw countersfield was carried out with the buried depth of 120mm and 90mm, forward speed of 3km/h and 5km/h, rotation speed of 260r/min and 230r/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 countersfield 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 230r/min. Moreover, with a larger buried depth and forward speed, the effect of rotation speed on the power consumption is obvious.