轮齿构型对月面巡视探测器车轮牵引性能的影响

he numerical simulation of interaction between lunar rover vehicle’s wheel and lunar soil simulant was conducted besed on Model of contact mechanics of lunar soil simulant’s particle and irregular particle group system. The particle flow simulations represent the movement of soil under wheel and variational trend of drawbar pull by laboratorial soilbin test. The analytical results show the drawbar pull of wheel with negative obliquity’s lug higher than the drawbar pull of wheel with positive obliquity’s lug. Moreover, compared with straight lug wheel, the drawbar pull for wheel with skew lug decreases greatly. At the condition of lunar environment, the wheel with spiny lug loses tractive ability at lower slip ratio, and its tractive ability is limited at higher slip ratio. Therefore, such configuration of wheel could’t be used as the wheel of lunar rover vehicle.