摘要
基于多模态耦合抖振理论,导出带有被动调谐质量阻尼器(TMD)的桥梁多模态耦合抖振系统运动微分方程,采用随机振动理论求解系统运动微分方程,并编制了桥梁多模态耦合抖振TMD控制和参数分析程序。以一座斜拉桥为算例,着重分析了模态间气动耦合效应对TMD最优参数和控制效率的影响。
Based on muhi-mode coupled buffeting theory, the buffeting differential equations governing the motion of the bridge with tuned mass damper （TMD） are established. The random vibration theory is used to solve the governing equations of motion and a program is developed for TMD control and parametric study of bridge buffeting. Finally, a cable-stayed bridge is analyzed to investigate the effects of aerodynamic coupling among modes on the optimal parameters and reduction efficiency of the tuned mass damper.
出处
《土木工程学报》
EI
CSCD
北大核心
2005年第11期64-68,共5页
China Civil Engineering Journal
关键词
大跨度桥梁
TMD
抖振控制
多模态耦合抖振
long-span bridges
TMD
buffeting control
multi-mode coupled buffeting
