【摘要】 应用多体系统动力学方法对SGA3550矿用汽车转向机构进行设计研究。首先,应用有限元软件建立转向横拉杆的柔性体模型,并得到其固有模态和振型;其次,结合ADAMS软件建立车辆的刚柔耦合模型;最后,对比分析多刚体模型和刚柔耦合模型的动力学特征,包括转向过程中的车轮转角、直线行驶时的轮距和车轮反向跳动过程中的车轮摆角。结果表明,刚柔耦合模型更为准确地反映了车辆的动力学特征,为转向机构设计提供了更为准确的依据。更多还原

【Abstract】 Based on multi-body system dynamic method, it studies the steering mechanism design of SGA3550 mining truck, builds a flexible model of tie-rod with finite element software, and attains natural mode of vibration and mode shape. Then it establishes a rigid-flexible coupling vehicle model combining ADAMS software, compares dynamics characteristics with multi-body rigid model and rigid-flexible coupling model. Those are included in turning angles during steering course, wheel distance during running straight, waving angle during wheel bumping. Results are more accurate to display vehicle dynamics characteristics, and more precise basis provides for steering mechanism design.更多还原