Based on a vehicle/turnout system dynamics model,a new dynamics model of the No. 12 concrete sleeper single turnout is established,and the system dynamics capability of the 21 t and 25 t load wagon passes through the turnout is analyzed.

• 在车辆_道岔系统动态相互作用动力学模型基础上；建立针对新型12号混凝土岔枕单开道岔系统动力学模型；分析21 t及25 t轴重货车侧向和直向通过该型道岔时系统的动力学特性.