新一代单轴跨座式单轨车辆的曲线通过性能

Curve-passing Performance of New Generation Single-axle Straddle Monorail Vehicle

[目的]研究分析新型单轴跨座式单轨车辆在小半径非正线曲线轨道和正线曲线轨道上运行时的曲线通过性能。[方法]使用多刚体动力学软件建立动力学仿真分析模型。根据车辆结构特点,选择合适的评价指标。运用静力学与动力学相结合的方法求取最小曲线半径,通过动力学仿真,按不同工况计算单轨车辆轮胎的受力情况、走行轮侧偏角及倾覆系数等车辆动力学性能参数。得到车辆通过小半径非正线曲线段和不同曲线半径正线段时的受力情况。[结果及结论]新一代单轴单轨车辆在小半径非正线曲线线路和不同曲线半径的正线线路上均具有良好的曲线通过性。

[Objective]The curve-passing performance of a new-model single-axle straddle monorail vehicle on small-radius non-linear curve tracks and linear curve tracks is researched and analyzed.[Method]A dynamics simulation analysis model is established using multi-body dynamics software.Suitable evaluation indicators are selected based on the vehicle structural characteristics.The minimum curve radius is determined using a method of combining statics and dynamics.Through dynamics simulation,various vehicle dynamics performance parameters such as monorail vehicle tire stress condition,running wheel flange angle,and overturning coefficient are calculated for different working conditions.The stress situation of the vehicle is obtained for both small-radius non-linear curve segments and linear segments with different curve radii.[Result&Conclusion]The new generation single-axle monorail vehicle demonstrates excellent curve-passing performance on small radius non-linear curve tracks and linear tracks with various curve radii.