轨距可变式货车动力学性能分析

根据变轨距货车转向架结构特点建立车辆动力学仿真模型,整车模型包括7个刚体,34个独立自由度和8个非独立自由度。阐述了模型中涉及的非线性环节以及处理方法。计算分析了车辆在不同轨距线路运行时空、重车工况下的直线运行稳定性、运行平稳性和曲线通过性能等各项性能指标。分析结果表明,轨距可变式货车车辆的动力学性能指标满足相关技术标准,轮对绕x轴和z轴的转动惯量和车轮滚动圆横向跨距这3项参数是造成变轨距车辆在准轨位和宽轨位性能差异的主要影响因素。

Dynamics Performance Analysis of Changeable Gauge Wagon

This paper build up the vehicle dynamic model according to the structural features changeable gauge bogie.In the model,there are 7 bodys,34 independent free degree and 8 dependent free degree.This paper illustrates the method of dealing with nonlinear phenomenon,and calculates the parameters of running stability,running balance,capability of passing curve under empty and load state in the different gauges.The calculation results indicate the changeable gauge bogie's dynamic performance conforms to the relev...