论文部分内容阅读
建立农用三轮机动车跨越障碍物的侧翻动力学模型,通过动力学理论对车辆侧翻现象进行分析。考虑减振弹簧和阻尼器的影响,推导出三轮机动车六自由度车辆动力学方程,提出其刚体侧翻运动模型。通过振动分析,得到三轮机动车行驶过程中单个车轮碰撞障碍物时各自由度以及质心的位移响应,由刚体侧翻运动分析得到其侧翻临界条件,并利用该条件分析了车辆质心位置以及后轮轴间距变化对侧翻临界载荷值的影响。
The rollover dynamics model of agricultural three-wheeled motor vehicles crossing obstacle is established, and the phenomenon of vehicle rollover is analyzed by dynamic theory. Considering the influence of damping springs and dampers, a six-degree-of-freedom vehicle dynamics equation of a three-wheeled vehicle is deduced and its rigid body roll motion model is proposed. By vibration analysis, the displacement degrees of each degree of freedom and centroid of a single wheel during a three-wheeled motor vehicle traveling are obtained. The rollover critical conditions are obtained from the analysis of rigid body rollover, and the location of the vehicle’s mass center, Influence of rear axle spacing on rollover critical load value.