有轨电车浮动车体动态包络线计算方法

Caculation Method on Kinematic Envelope of Tram with Suspended Carbody

浮动车体有轨电车采用模块化铰接车体结构,车体各模块之间采用铰接装置连接,因而其限界计算不能直接引用使用刚性车体的地铁车辆的计算方法。根据5模块悬浮车体有轨电车的结构特点和运动自由度,参考CJJ 96—2003标准,探讨了5模块浮动车体有轨电车的车辆动态包络线的计算方法。根据车体各模块之间以及车体与转向架之间的运动关系,分析了车体各模块的横向偏斜系数、垂向偏斜系数和柔性系数的取值方法,并增加了车体相对转向架转动而产生的横移量。提出的限界计算方法可扩展到3模块和7模块的浮动车体有轨电车以及单车体型有轨电车。

The tram with suspended carbody adopts modular articulated carbody structure, and each module of the carbody is connected by articulated equipment, so its kinematic envelope calculation cannot directly use the calculation method of subway vehicle with rigid carbody. According to the structure and degree of freedom of movement of the tram with 5 module suspended body, the calculation method of the kinematic envelope of the tram with 5 module suspended body was discussed with reference to the CJJ 96-2003 standard. Based on the relationship between carboy modules and the movement between carbody and bogie, the values of the transverse deflection coefficient, the vertical deflection coefficient and the flexible coefficient of each modular were analyzed and transverse displacement caused by the relative rotation between carboy and bogie was taken into account additionally. The proposed method could be extended to 3 module and 7 module suspended carbody trams and single carbody trams.