轮履变体式车辆底盘越障性能研究

对全地形轮履变体式车辆底盘的典型越障性能进行研究.首先，参考某型车辆底盘，设计轮履复合轮（即变体轮）尺寸，建立三维模型；通过运动学和力学分析，确定出变体轮跨越壕沟、攀爬台阶及爬坡的临界状态，得到最大越壕宽度、最大越台阶高度和极限爬坡度.结果表明，轮履变体式车辆底盘具有很强的环境适应能力和较高的越障性能，且整体越障性能优于传统轮式和履带式车辆.这些为轮履变体式底盘的结构优化以及未来轮履复合式车辆的广泛应用提供了充分的理论依据.

Research on Obstacle-Surmounting Performance of Wheel-Track Vehicle Chassis

The typical obstacle-surmounting performances of wheel-track vehicle chassis were studied in this paper. At first, the sizes of variant wheel were designed according to a certain vehicle and the three dimensional models were established. Then the critical states of crossing trench, climbing step and slope were determined based on kinematics and mechanical analysis, and the largest width across trench, the height over the step and the maximum slope angle were obtained respectively. The results show that the wheel-track vehicle chassis has stronger environmental adaptability and higher obstacle-surmounting performance than the normal wheel vehicle and track vehicle. These achievements provide a sufficient theoretical basis for optimum of structure and the extend application of the wheel-track vehicle in the future.