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结合两联关节式集装箱平车采用关节连接器连接,关节处共用一个转向架的特点,考虑了轮轨接触几何关系、轮轨蠕滑力、各种悬挂特性和关节连接器等非线性因素,应用NUCARS动力学仿真软件,建立了两联关节式集装箱平车的数学模型,采用数值仿真方法,分析了车辆系统的运动稳定性、曲线通过性与运行平稳性。分析结果表明:两联关节式集装箱平车的蛇行失稳临界速度具有一定的速度裕量,曲线通过性能指标满足GB/T5599-1985规定的限度范围,在120km·h-1的速度范围内,车体的横向与垂向平稳性指标均小于3.5的优级标准,因此,两联关节式集装箱平车具有较好的动力学性能,能够满足集装箱平车120km·h-1运输速度的要求。
Combining with the characteristics of wheel-rail contact geometry, wheel-rail creep force, various suspension characteristics and joint connectors, the two-joint articulated container flat car is connected with a joint connector and the joint is shared by one bogie. By using NUCARS dynamic simulation software, the mathematical model of two-joint articulated container flat car was established. The numerical simulation method was used to analyze the vehicle stability, curve passing and running stability. The analysis results show that the critical speed of the meandering instability of the two-joint articulated container flat car has a certain speed margin. The curve passes the performance index to meet the limit range of GB / T5599-1985. Within the speed range of 120km · h-1, Therefore, the two-joint articulated container flat car has better dynamic performance, which can meet the requirements of transport speed of 120km · h-1 container flat car.