一种挤压油膜阻尼器的动力特性分析*

李舜酩 陈钊 李彦

振动与冲击 ›› 2009, Vol. 28 ›› Issue (5) : 44-48.

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PDF(1901 KB)
振动与冲击 ›› 2009, Vol. 28 ›› Issue (5) : 44-48.
论文

一种挤压油膜阻尼器的动力特性分析*

  • 李舜酩1 陈钊2 李彦3
作者信息 +

Dynamic Characteristic Analysis on a Squeeze Film Damper

  • Li Shunming, CHENZhao,LI Yan
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摘要

摘要:挤压油膜阻尼器对旋转机械的减振具有重要作用。不同挤压油膜阻尼器的工作特性也不相同。本文首先介绍了挤压油膜阻尼器动力特性计算方法,比较了数值求解的迭代计算法和曲线交点法的优缺点;其次设计了一种挤压油膜阻尼器试验台,介绍了所设计的实验条件和方法,并进行了动力特性试验研究,得到了3种激振力幅值下的位移导纳曲线。然后对位移导纳的幅频特性和相频特性,进行了计算与试验结果的对比分析,最后得出了有实用价值的结论。

Abstract

Abstract:The Squeeze Film Damper (SFD) has great importance to reduce the vibration of rotary machines. The work characteristics are different for different SFD. The numerical methods of loop arithmetic and curve intersection methods are compared. Next the dynamic characteristic experiments are researched on a SFD. The experimental condition and the methods are introduced. Tree excitation forces are used and the displacement admittance curves are drawn. And then the results of amplitude-frequency characteristic and phase-frequency characteristic on displacement admittance gotten from calculations are compared to experimental results. On the last the conclusions of practical value have been educed.

关键词

弹支挤压油膜阻尼器 / 动力特性 / 导纳 / 计算 / 试验

Key words

elastic Squeeze Film Damper / dynamic characteristic / admittance / calculation / experiment

引用本文

导出引用
李舜酩 陈钊 李彦. 一种挤压油膜阻尼器的动力特性分析* [J]. 振动与冲击, 2009, 28(5): 44-48
Li Shunming;CHENZhao;LI Yan. Dynamic Characteristic Analysis on a Squeeze Film Damper [J]. Journal of Vibration and Shock, 2009, 28(5): 44-48

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