轨道临界速度与轨道强振动研究  

Study on critical velocity and vibration boom of track

作　　者：雷晓燕[1] 

机构地区：[1]华东交通大学土建学院,江西南昌330013

出　　处：《岩土工程学报》2006年第3期419-422,共4页Chinese Journal of Geotechnical Engineering

基　　金：国家自然科学基金资助项目(50568002);江西省自然科学基金资助项目(0450012)

摘　　要：通过建立轨道振动微分方程,得到了单轮作用下轨道变形的解析表达式。在此基础上,研究了轨道临界速度与轨道强振动的关系,分析了轨道基础弹性模量和轨道抗弯刚度对轨道临界速度及轨道振动的影响。Analytical formula of track deformation under a single wheel load was derived by establishing the differential equation of track vibration. Based on this formula, the relationship between critical velocity and vibration boom of track was investigated and the influence of the Young＇s modulus of the foundation and the flexural rigidity of the track on critical velocity and vibration of track was discussed.

关 键 词：轨道振动 轨道临界速度 轨道强振动 

分 类 号：X839.1[环境科学与工程—环境工程]