纵向耦合独立车轮转向架建模方法研究  

On Longitudinal Coupling Modeling of Independent Wheel Bogie

作　　者：张徐[1,2] 黄运华[1] 王旭嘉[1] 李相欣 

机构地区：[1]西南交通大学机械工程学院,成都610031 [2]铁道第三勘察设计院集团有限公司,天津300142

出　　处：《城市轨道交通研究》2017年第4期28-33,共6页Urban Mass Transit

摘　　要：根据多体系系统动力学理论,在建立动力学模型时,可将车轮间的动力学矢量设计成树形结构,这种处理使车轮间仅生成动力学约束而不是运动学约束。另一种方式将车轮间的纵向耦合方式视为无质量的运动约束,即车轮在连接点处具有相同的运动,运动矢量形成闭环。目前,在建立纵向耦合独立车轮转向架动力学模型时,都采用运动学约束来处理一侧前后车轮的耦合关系。以某COMBINO型纵向耦合独立车轮转向架为例,分别采用运动学约束和动力学约束的方法,对比曲线通过能力,以评价动力学约束方法的合理性。According to the multi-system dynamics theory, in building a dynamic model, the dynamic vector between wheels could be designed into a tree structure,which generates only dynamic constraint rather than kinematic constraint. Another way of modeling the longitudinal coupling between wheels is a massless motion constraint, namely the wheels in connection with the same motion, and the motion vector forms a closed loop. At this stage, in building the longitudinal coupling bogie with independent rotating wheels, kinematics constraint is used to deal with the side wheels. In this paper, according to a COMBINO longitudinal coupling independent wheel bogie, the dynamic constraint is used and the rationality of the dynamic constraint method is expounded through a comparison with the curve passing capacity of the kinematics constraint method.

关 键 词：有轨电车 纵向耦合 独立车轮转向架 运动学约束 动力学约束 

分 类 号：U270.331[机械工程—车辆工程]