摘要
基于现场轮轨动力学试验数据建立C70敞车的车辆-轨道耦合动力学模型,分析在相同曲线半径、不同钢轨廓形差异间距的区段和不同曲线半径、相同钢轨廓形差异间距的区段上轮轨动力学指标。为减小钢轨廓形差异对车辆动力学指标的影响,针对钢轨廓形差异提出钢轨铣磨和钢轨打磨相结合的钢轨整治措施。结果表明,采用钢轨铣磨和钢轨打磨相结合的钢轨整治措施后,能够有效消除曲线区段内的钢轨廓形差异,提升通过曲线时的列车运行稳定性。
The paper establishes a vehicle-track coupled dynamics model for C70 open car based on onsite wheelrail dynamics testing data,and analyzes the whee-lrail dynamics indicators on sections with the same curve radius but different spacing between rail profiles difference,as well as sections with different curve radius but the same spacing between rail profiles difference.To reduce the impact of differences in rail profile on vehicle dynamic indicators,a rail regulation measure combining rail milling and rail grinding is proposed for rail profile differences.The results show that after adopting the rail regulation measure combining rail milling and rail grinding,the differences in rail profile within the curved section can be effectively eliminated,and the running stability of the train passing through the curve can be improved.
出处
《铁道技术监督》
2025年第7期41-49,共9页
Railway Quality Control
关键词
钢轨廓形
曲线半径
轮轨动力学
轮轨力
蠕滑力
钢轨铣磨
钢轨打磨
Rail Profile
Curve Radius
Wheel-rail Dynamics
Wheel-rail Force
Creepage Force
Rail Milling
Rail Grinding
