论文部分内容阅读
由于直线电机地铁车辆特殊的非黏着驱动方式,构建了考虑直线电机垂向电磁力的车辆动力学模型[1]。采用LM、S1002、JM33种不同轮对踏面,比较静态状况下轮轨几何接触关系,并分析施加垂向电磁力前后车体与构架动力学特性差异。主要对车辆平稳性指标、构架横向加速度、轮重减载率、轮轴横向力进行了动态仿真计算。分析结果表明:考虑直线电机垂向电磁力后其构架与车体的横向动力学指标会明显变差,但对垂向值影响不大,在60km/h的低速范围内总体上3种踏面动力学性能差异较小,但在高速范围S1002踏面明显好于LM和JM3踏面。
Due to the special non-stick drive mode of linear motor metro vehicles, a vehicle dynamics model considering vertical electromagnetic force of linear motor is constructed [1]. Using LM, S1002 and JM33 different wheelset treads, the wheel-rail geometrical contact relationship under static condition was compared and the dynamic characteristics of body and frame before and after application of vertical electromagnetic force were analyzed. Mainly on the vehicle stability index, frame lateral acceleration, wheel load and unload rate, axle lateral force dynamic simulation. The analysis results show that the transverse dynamic index of the frame and the vehicle body will be significantly deteriorated after considering the vertical electromagnetic force of the linear motor, but has little effect on the vertical value. In the low speed range of 60km / h, The differences in learning performance are small, but the S1002 tread in the high speed range is significantly better than the LM and JM3 treads.