高速履带车辆斜坡转向动力学过程仿真  

Dynamics Simulationof High-Speed Tracked Vehiclesin Steering Processon Ramp

作　　者：苏勇[1] 薛乃雄 张荟荟[1] 库光全 

机构地区：[1]合肥工业大学材料科学与工程学院,安徽合肥230009

出　　处：《机械设计与制造》2016年第2期157-160,共4页Machinery Design & Manufacture

摘　　要：在考虑高速履带车辆转向离心力和履带滑移的条件下,为了准确分析高速履带车辆在斜坡转向过程中履带径向摩擦力与动态张紧力的变化规律及影响因数,建立了多体系统动力学仿真模型。通过对仿真结果分析得到,分别在不同行驶速度、转向半径、斜坡角度条件下,径向摩擦力大小与运动方位角的变化规律;并得到履带动态张紧力随车辆方位角的变化关系曲线,以及车辆行驶速度与斜坡坡度对履带张紧力的影响规律。通过仿真值与理论值的拟合,文中所建立的多体系统动力学模型具有较好的准确性,对今后研究履带车辆转向过程控制提供理论支持。In order to analyze the variation of radial friction and dynamic tension of the high-speed tracked vehicle in the course of the ramp turn,in consideration of the steering centrifugal force and the slipping of track,the multi-body system dynamics simulation model was established. The analysis results show that the magnitude of the radial friction exhibits a relationship with the motion azimuth,respectively in different vehicle speed,steering radius,the angle of the slope condition,and dynamic track tension changes with the interrelation curve of vehicle azimuth angle,and the vehicle impact on the track tension of velocity and slope gradient.The simulation results show that the multi-body system dynamics model established has good accuracy. Those research works can provide the theoretical support on the steering process control.

关 键 词：高速履带车辆 斜坡转向过程 多体系统动力学仿真 径向摩擦力 动态张紧力 

分 类 号：TH16[机械工程—机械制造及自动化]