整体式挤压油膜阻尼器对管道振动抑制试验  

Experimental Study on Controlling Vibration of Pipeline with Integral Squeeze Film Damper

作　　者：丁继超 何立东 冀沛尧 DING Jichao;HE Lidong;JI Peiyao(Beijing Key Laboratory of Health Monitoring and Self-Recovery for High End Mechanical Equipment,Beijing University of Chemical Technology Beijing,100029,China)

机构地区：[1]北京化工大学高端机械装备健康监控与自愈化北京市重点实验室,北京100029

出　　处：《振动．测试与诊断》2020年第3期535-540,627,共7页Journal of Vibration,Measurement & Diagnosis

基　　金：国家重点基础研究发展计划(“九七三”计划)资助项目(2012CB026000)。

摘　　要：针对管道振动现象,设计了一种整体式挤压油膜阻尼器并分析其刚度影响规律。利用SAP2000软件模拟仿真阻尼减振效果。搭建二维门型管道振动试验台,在管道上安装整体式挤压油膜阻尼器,研究整体式挤压油膜阻尼器控制管道振动的影响规律。结果表明:整体式挤压油膜阻尼器安装在激振源处且与激振力平面平行时的减振效果最佳,较原始振动降幅达51.83%;安装在激振源处且与激振力平面垂直时的减振效果最差;安装两个整体式挤压油膜阻尼器减振效果优于安装一个整体式挤压油膜阻尼器;安装在激振源处的减振效果优于安装在远离激振源的效果。light of the pipeline vibration,an integral squeeze film damper is designed and the rules of stiffness are analyzed.The damping effect is simulated with SAP2000 software.The integral squeeze film damper is installed on a two-dimensional gate-type pipeline vibration test bench to study the rules of vibration in the pipeline.The results show that the integral squeeze film damper performs best with a 51.83%decrease in amplitude when installed at the excitation source and being parallel to the plane of the excitation force,while the damper acts worst when installed at the excitation source and being vertical to the plane.Besides,two integral squeeze film dampers perform better than one does,and the damper installed at the excitation source excels the one away from the source in vibration attenuation.

关 键 词：整体式挤压油膜阻尼器 阻尼减振 管道系统 安装方案 

分 类 号：TH535.1[机械工程] TQO55.8[化学工程]