控制管道振动用耦合阻尼器的动柔度优化设计方法

Method for Optimum Designing Dynamic Flexibility of Coupled Damper for Controlling Pipe Vibration

提出了一种新型耦合阻尼器,可以有效抑制管道内因流体扰动所引起的管壁振动,以及与管道中高阶声模态耦合所产生的声辐射。由动柔度分析优化阻尼器参数,可使共振幅值下降11dB。并由试验证实了理论分析的正确性。

This paper presents a coupled damper of new type.By which the pipe wall vibration due to fluid disturlance and sound radiation produced due to coupling of high order acoustic mode in piping may he effectively depressed.Optimiczation of damper parameter by analyzing dynamic flexilility may reduce 11dB of consonance amplitude.Correctness of theoretical analysis is verified through experiments.