摘要
以新建的某铁路货运专线上的反向曲线上的小半径曲线桥梁为例,考虑列车曲线通过的特点及轮轨非线性相互作用,建立空间的列车和曲线桥梁的振动方程,运用模态叠加法求解振动方程。通过车桥耦合振动专用分析程序VBC2.0的数值分析,得出列车通过该反向曲线上小半径曲线梁桥的一些振动规律,并给出我国货运列车通过该桥梁的合理行车速度及其他建议。
In this paper, a certain new railway curved-bridge on a small radius curve and a reverse curve was taken for the case, and the motion equation of vehicle curving and three-dimensional space bridges were established on considering the characteristics of vehicle curving and nonlinear creep theory of a wheel-rail interaction. The motion equations were solved by a modal superposition method. The numerical analysis of the new curved bridge dynamic responses was solved by a professional program called VBC2.0, and some laws of vehicle-curved bridge coupling vibrations were summarized, and reasonable speed and other suggestions for vehicle curving this special bridge were proposed.
出处
《工程力学》
EI
CSCD
北大核心
2012年第A01期185-189,共5页
Engineering Mechanics
关键词
桥梁工程
车桥振动
动力相互作用
曲线桥梁
反向曲线
小半径曲线
振动规律
bridge engineering
vibration of vehicle and bridge
dynamic interaction
curved bridge
reverse curve
small radius curve
law of vibration
