大跨度悬索桥的双向TMD振动控制

Vibration Control of Large-span Suspension Bridge with Two-axles TMD

提出了一种具有 2个自由度的调质阻尼器模型 ,它可以实现对悬索桥竖弯、侧弯和扭转振动的控制。算例表明 ,悬索桥的扭转振动与侧弯振动是耦合在一起的 ,而竖弯振动与侧弯振动的耦合较弱 ,可以用一对双向TMD实现对

A two axles TMD is presented in the paper, by which the lateral, vertical and torsional vibrations of long span suspension bridge can be reduced. It is shown that the torsional vibration of suspension bridge is coupled with its lateral vibration, and vertical vibration of suspension bridge is uncoupled with lateral vibration, therefore the 3 vibration modes of suspension bridge can be controlled by a double of two axles TMD.