机械

建立了6M2T列车动力学模型,然后通过Matlab的Simulink模块,联合动力学模型建立了基于蠕滑速度的粘着控制系统。考虑了列车运行基本阻力、制动力和横风的作用,并参考了TSI规定的粘着系数和速度关系,研究了不同横风速度下的列车制动性能。研究结果表明:在制动过程中,列车制动距离随着横风速度的增加而逐渐增大,而制动减速度随之逐渐减小;另外,列车蠕滑速度也随着横风速度的增加而逐渐增大。所以,在横风作用下,高速列车必须限速或者停运,以确保运行安全和防止车轮擦伤。

The dynamics model of the train with 6M2T is set up, with which the adhesion control system based on creep speed is installed by the SIMULINK module of Matlab, and also the train resistance force, brake force and cross wind force are considered. At the same time the relationship of the speed and adhesion coefficient ruled by TSI is considered. at last the brake property of the train under different cross wind speeds is studied.The research results show that the braking length of the car increase with the cross wind speed increases in the process of braking but the braking acceleration decrease. Meanwhile, the creep velocity increase with the cross wind speed increases. So, the train must run with the limit speed or stop to ensure safety and prevent chafe the wheel under cross wind.