摘要
本文采用3-D全车模型和模态坐标法,以路面竖向不平顺为激励源,建立车-桥耦合振动微分方程,用Runge-Kutta法求解,据此思路用Matlab编制车-桥耦合振动的计算程序,并进行了FRP桥面板钢梁桥的振动分析,模拟结果与现场实测结果对比符合较好,表明该方法正确有效,可用于分析各种车桥耦合振动问题。
By using 3-D entire vehicle model and modal coordinate method, taking the road surface vertical irregularity as the excitation source,vehicle-bridge coupling vibration differential equation is established and solved through the Runge-Kutta method. Then the vehicle-bridge coupling vibration calculation procedures with Matlab according to the above approach is set up, and a FRP deck steel girders bridge vibration analysis is carried out. The obtained results are identical to those field results, and it proves that the algorithm is valid and effective enough to analyze the vehicle-bridge coupling vibration system.
出处
《南阳理工学院学报》
2009年第1期56-58,62,共4页
Journal of Nanyang Institute of Technology
基金
河南省基础与前沿技术研究计划项目082300440030
关键词
车-桥耦合
振动
FRC桥面板
梁式桥
Vehicle-bridge coupling
Vibration
FRP deck
Steel girders bridge
