履带车辆转向过渡过程模型与仿真分析  

Model and Analysis of Tracked Vehicles in Non-stationary Steering Process

作　　者：李善乐[1] 李同飞[1] 王钦龙[1] 

机构地区：[1]装甲兵工程学院机械工程系,北京市100072

出　　处：《农业装备与车辆工程》2015年第10期28-31,共4页Agricultural Equipment & Vehicle Engineering

摘　　要：为了准确研究履带车辆实际转向过程中的性能,在考虑履带滑转和车体离心力的基础上,建立了履带车辆过渡转向模型,对模型进行了运动学和动力学参数求解,编写了程序进行仿真分析。仿真结果表明:进入转向时的速度越高,进入稳态转向的过程就越长,且在达到稳态转向的过程中,会出现急剧的振动。当速度达到8 m/s时,转向半径会在开始转向过程中急剧下降,履带车辆会失去控制,发生失稳现象。In order to study the performance of tracked vehicles in actual steering process, a non-steady state steenng model lS built in consideration of track slip and centrifugal force. Kinematical and dynamic characteristics are analyzed based on the model by programming. Simulation results show that the higher velocity of tracked vehicles, the longer it takes to reach the steady state steering and the more violent those oscillations become. When the velocity of tracked vehicles reaches or more than 8 m/s, the steering radius falls down abruptly since it begins to steer and tracked vehicles are out of control, which is called unstable phenomenon.

关 键 词：履带车辆 履带滑动 过渡转向 

分 类 号：U469.694[机械工程—车辆工程]