摘要
采用车辆—轨道耦合大系统的思想,将钢轨简化为弹性点支承有限长的欧拉梁、轮轨接触关系采用弹簧接触,建立出轮轨动力学模型。分析车轮以不同速度行驶过程中,受轨道低接头不平顺激励下轮轨相互作用垂向振动响应。并得出低接头不平顺对列车提速的影响。
Based on the thoughts of wheel and track coupling big system, rails were simplified as a Euler-beam with limit length by a springy point, and contact relation between wheel and rail was treated as spring contact, it was established dynamics model between wheel and rail. And when wheels were running at homogeneous speed, vertical vibration response of interaction between wheel and rail under excitation of dipped joint signal was outputted. And dipped joint influence to raise train speed was also presented.
出处
《铁路计算机应用》
2004年第7期6-8,共3页
Railway Computer Application
关键词
车轮
轨道
振动
欧拉梁
wheel
track
vibration
Euler-beam
