Dynamic Response Analysis To The City Metro Line Turnout When The Vehicle Pass The Turnout On Branch Line

To analysis the complicated system of the city metro line which include the vehicle and the turnout, the paper designed the multi-body dynamics module with the software of SIMPACK. The dynamic character of the whole system was analyzed when the train passed the turnout on branch line. The dynamic affection to the turnout under the condition of different speed, radius of the curve, the stiffness of the fasten and the stiffness of the ballast were also analyzed. All these were important to the designation, construction and operation of the city metro line.