管道金属摩擦阻尼减振器性能的实验研究  

EXPERIMENTAL RESEARCH ON THE PERFORMANCE OF METAL FRICTIONAL DAMPER APPLIED TO PIPELINE

作　　者：王强[1] 何立东[1] 

机构地区：[1]北京化工大学 诊断与自愈工程研究中心,北京100029

出　　处：《石油化工设备技术》2011年第4期4-6,4,共3页Petrochemical Equipment Technology

基　　金：国家"863"计划(2007AA04Z422)~~

摘　　要：设计了一种新型的管道金属摩擦阻尼减振器,并对带金属摩擦阻尼减振器的管道系统进行了振动响应的实验研究。通过测量管道径向、轴向和激振器支撑架的振动响应,研究了金属摩擦阻尼减振器的减振性能和减振机理。实验结果表明,金属摩擦阻尼减振器能够有效控制管道系统的振动,管道径向和轴向振动降幅分别达到76%和83%,激振器支撑架径向振动降幅达92%;管道振动能量没有被转移至激振器支撑架,而是通过金属摩擦阻尼减振器与管道外壁的微摩擦作用将振动能量转化为热能耗散。A new type of metal frictional damper for pipeline is designed.Experimental research on the vibration response of piping system with a metal frictional damper is carried out.By measuring the radial and axial vibration response of the pipeline as well as the vibration response of an exciter support frame,the paper researches on the damping properties and mechanism of the metal frictional damper.The experimental results demonstrate that metal frictional damper can control the vibration in the pipeline system effectively.The radial and axial vibration responses of the pipe is decreased by 76%and 83%respectively and the radial vibration responses of the exciter support frame is decreased by 92%. The vibration energy is converted to heat by micro -friction between the metal frictional damper and pipe wall instead of being transferred to the exciter support frame.Thus,the experimental results are significant for the metal frictional damper to be further applied to the pipe vibration -damping in practice.

关 键 词：金属摩擦阻尼减振器 管道 减振 能量耗散 

分 类 号：TB535.1[理学—物理]