摘要
本文从时变角度模拟了高速车辆 -桥梁耦合振动 ,考虑了哥氏力 ,离心力的影响 ,分析了刚体的响应时程 ,以及桥面竖向加速度对旅客可能造成的影响 ,重点分析了车 -桥耦合振动中系统相关参数 (刚体质量与其移动速度 )的变化所带来的影响。而在一般的工程设计与施工中 ,行驶车辆的竖向惯性力是主要的 ,哥氏力与离心力 (也是惯性力体系的组成部分 )的影响可以近似忽略。
In the paper the coupled vibration of high speed vehicle-bridge is simulated from the viewpoint of time varying system.Considering the influences of coriolis force and centrifugal force and looking the main parts of the system as rigid bodies,the response time history is analysed.The effect of vertical acceleration of decks on passengers comfort is then investigated.Moreover,it is emphasized on analysing the effect of relevant parameters variation(rigid mass and its moving speed) on coupled vibration.In general design and construction of structure,the vertical inertial force of running cars plays a main role,however the coriolis force and centrifugal force(also the parts of the inertial force system) can be ignored.
出处
《振动与冲击》
EI
CSCD
北大核心
2003年第2期49-52,共4页
Journal of Vibration and Shock
