摘要
运用多体动力学软件UM，建立高速综合检测列车非线性动力学仿真模型。根据京沪高速铁路试验数据，对车体和构架的振动加速度以及在半径为9000m曲线上的稳态轮轴横向力进行仿真，并与试验结果对比，验证仿真模型的准确性。应用该模型，分别分析车轮的设计型面、磨耗型面和镟修型面与CHN60钢轨接触的3种不同高速列车的横向稳定性。结果表明：在车轮镟修型面和设计型面的轮轨状态下，高速列车的横向稳定性指标相当；而车轮踏面的磨耗会降低高速列车的横向稳定性。调整轨底坡虽然可以改善磨耗型面车轮高速列车的横向稳定性，但同时又会导致设计型面和镟修型面车轮高速列车的横向稳定性恶化；8辆编组的高速综合检测列车各车辆之间的横向稳定性存在明显差异，且随着速度的增大这种差异也不断扩大，其中头车和尾车的横向稳定性比较差；车速为300km·h^-1以上时磨耗功率和轮轨磨耗急剧增大。
The non-linear dynamics simulation model of high-speed comprehensive inspection train was es- tablished based on multi-body dynamics software UM. According to the experimental data of Beijing- Shanghai high-speed railway, the vibration acceleration of both carbody and frame as well as the steady- state axle lateral force on curve with 9 000 m radius were simulated. Simulation results were compared with experimental results to verify the accuracy of the model. With the model, the lateral stability in three different wheel-rail contact states, namely design profile wheel, wear profile wheel and re-profiled wheel with CHN60 rail, was analyzed respectively. Results show that, under the wheel-rail contact states of re- profiled wheel and design profile wheel, the lateral stability indexes of high-speed train are quite close, but the wear of wheel tread will decrease the lateral stability of high-speed train. Although the lateral stability of high-speed train with wear profile wheel can be improved by adjusting the inclination of rail flange, at the same time, it will make the lateral stability of the high-speed train with design profile wheel and re- profiled wheel deteriorate. There is significant difference in the lateral stability between each car of eight- car formation high-speed comprehensive inspection train, and the difference becomes greater and greater a- long with the increase of train speed. The lateral stability of both the head car and the tail car is worse. The wear power and wheel-rail wear increase sharply when the train speed is over 300 km · h^-1.
出处
《中国铁道科学》
EI
CAS
CSCD
北大核心
2012年第B08期25-32,共8页
China Railway Science
基金
国家“八六三”计划重点项目（2009AA110302）
铁道部科技研究开发计划项目（1019YF0703,1019YF0802,1119YF6303）
关键词
高速列车
横向稳定性
模型验证
车轮型面
轮轨关系
High-speed traim Lateral stability
Model validatiom Wheel profile
Wheel-rail interaction
