颗粒调谐质量阻尼器在竖直细长杆顶端的减振试验研究

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振动与冲击 ›› 2022, Vol. 41 ›› Issue (10) : 278-283.

论文

李宽，张亮亮，麻恒进，于人龙，张健，杨帅

作者信息 +

Experimental study on the top vibration reduction of a vertical slender rod by using the particle tuned mass damper

LI Kuan, ZHANG Liangliang, MA Hengjin, YU Renlong, ZHANG Jian, YANG Shuai

Author information +

文章历史 +

摘要

本文针对航空测试设备涉及的一种竖直细长杆支撑结构的顶端振动问题，进行了基于颗粒调谐质量阻尼器的减振试验研究。该竖直细长杆为空心钢圆管结构，长细比43:1。使用工况为两根一组，顶部共同带载，根部固定于回转装置，跟随回转装置做回转运动，回转半径2.5m，回转速度0.1°/s。回转时细长杆顶端易产生振动，影响测试运动精度和支撑安全性。为解决该问题，本文设计了三种质量比的颗粒调谐质量阻尼器，应用至刚度较弱、振动较明显的空载单根细长杆顶端进行减振试验，验证阻尼器在该类型结构中的有效性。试验结果显示，单杆最大减振幅度可达31%。进一步针对实际应用工况下的带载双杆设计阻尼器并进行减振试验。结果显示，双杆最大减振幅度可达43%，减振效果良好。

Abstract

In order to solve the top vibration of a vertical slender rod supporting structure which is usually used on aviation test equipment, an experimental study on vibration reduction based on particle tuned mass damper is carried out in this paper. The vertical slender rod is a hollow cylinder with slenderness ratio of 43:1. The working condition is that double vertical slender rods are top loaded together with their roots fixed on a rotary device and rotating. The rotating radius is 2.5m and the angular speed is 0.1 ° / s. When rotating, the top of the slender rod is easy to generate vibration, which affects the test motion accuracy and support safety. In order to solve this problem, this paper designs three kinds of particle tuned mass damper with different mass ratios. The dampers are firstly applied to the top of a single no-load slender rod which vibrates obviously to verify the reduction effectiveness. The test result shows that the max-reduction of the vibration amplitude of the single rod is close to 31%. Furthermore, the damper is designed again and applied to the loaded double rods which are used in the actual application condition. The result shows that the max-reduction of the vibration amplitude of the double rods is close to 43%.

导出引用

李宽，张亮亮，麻恒进，于人龙，张健，杨帅. 颗粒调谐质量阻尼器在竖直细长杆顶端的减振试验研究[J]. 振动与冲击, 2022, 41(10): 278-283

LI Kuan, ZHANG Liangliang, MA Hengjin, YU Renlong, ZHANG Jian, YANG Shuai. Experimental study on the top vibration reduction of a vertical slender rod by using the particle tuned mass damper[J]. Journal of Vibration and Shock, 2022, 41(10): 278-283

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