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丘陵山区地形复杂,地面凹凸不平,针对农用车辆行驶稳定性较差,车体倾斜等问题,本文提出一种自适应调平方法,并根据丘陵山区农用动力底盘作业要求,设计一种自适应调平悬架及应用该悬架的自适应调平底盘。建立虚拟样机三维模型,并导入动力学分析软件ADAMS中进行仿真分析,将底盘仿真过程中的侧倾角和俯仰角与四轮刚性底盘在同等条件下仿真得到的侧倾角和俯仰角对比,自适应调平底盘参考某种作业环境在幅值和波长特定的波形地面上行走作业时,侧倾角和俯仰角之和可降低60%左右。通过对样机土槽试验结果分析,证明自适应调平方法的可行性和仿真分析的正确性。
Due to the complicated topography and rugged ground in hilly and mountainous areas, aiming at the problems of poor stability and tilting of agricultural vehicles, an adaptive leveling method is proposed in this paper. Based on the requirements of agricultural power chassis in hilly and mountainous areas, Flat Suspension and Adaptive Leveling Chassis with this Suspension. The 3D model of the virtual prototype is established and imported into the dynamic analysis software ADAMS for simulation analysis. The roll angle and pitch angle during the chassis simulation are compared with the roll angle and pitch angle simulated by the four-wheeled rigid chassis under the same conditions. Leveling the chassis Refer to a working environment where the sum of roll angle and pitch angle can be reduced by about 60% when walking on ground with waveforms and wavelengths. The feasibility of the adaptive leveling method and the correctness of the simulation analysis are proved by analyzing the test results of the prototype soil tank.