履带式车辆斜坡转向时的动力学特性  

Characteristics of Dynamics of Tracked Vehicles Steering on Ramp

作　　者：孙逢春[1] 史青录[1] 郭汾[1] 翟丽[1] 

机构地区：[1]北京理工大学,北京100081

出　　处：《中国机械工程》2007年第22期2766-2771,共6页China Mechanical Engineering

基　　金：国家部委预研项目(0440402070101)

摘　　要：运用数力学中矢量分析理论和方法推导了基于接地比压呈线性分布的履带式车辆在斜坡上转向时的瞬时转向中心偏移量、转向阻力矩、两侧履带所需牵引力、消耗的功率与车辆重心位置、转向半径、行进速度、加速度、车辆方位的相互关系的计算公式。通过计算机仿真和实例计算得出了上述各参数之间相互关系的曲线,分析了这些参数的变化规律,并将其与车辆在水平路面转向时的曲线进行了对比分析,为履带车辆两侧驱动轮力矩和功率的分配提供了参考依据。Based on the ground＇s vertical linear pressure, and by the theories and methods of vector analysis in mathematics and mechanics, the calculation formulas of relationship among instantaneous steering center, resistance moment, tractive force needed, consumed power and the position of vehicle＇ s gravity, steering radius, moving velocity, moving acceleration, vehicle＇s orientation on ramp, when the vehicle being on ramp were derived. Based on these, the corresponding procedures were compiled and an actual analysis on an actual tracked vehicle was made. Then,the curves of the relationships among these parameters were made,the rules were analysed and the contrast with the steering on horizontal road surface was made. The reference for distributing the moment and power between two driving sprocket wheel of the tracked vehicle is orovided.

关 键 词：履带式车辆 斜坡转向 运动学 动力学 

分 类 号：U469.694[机械工程—车辆工程]