基于两端开口的有限长挤压油膜阻尼器的试验研究

刘占生;张敏;徐方程;徐宁

振动与冲击 ›› 2012, Vol. 31 ›› Issue (18) : 137-142.

PDF(1909 KB)
PDF(1909 KB)
振动与冲击 ›› 2012, Vol. 31 ›› Issue (18) : 137-142.
论文

基于两端开口的有限长挤压油膜阻尼器的试验研究

  • 刘占生1,张敏1,徐方程1,徐宁2
作者信息 +

Experimental study of an Open-ended Finite Length Cylindrical Squeeze Film Damper

  • LIU Zhansheng1, ZHANG Min1, XU Fangcheng1, XU Ning2
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摘要

推导了有限长挤压油膜阻尼器阻尼系数的理论计算公式,利用脉冲激励法对两端开口的挤压油膜阻尼器进行了实验研究,通过对实验测量值与理论值的对比分析,得出影响挤压油膜阻尼器阻尼效果的参数和条件。研究表明,供油方式、供油压力均对挤压油膜阻尼器的阻尼效果具有一定的影响,且脉冲激励法更适用于阻尼系数较小的阻尼器。

Abstract

The damping coefficient calculation formula of a finite length cylindrical squeeze film damper was evaluated, and experimental research was conducted via pulse excitation method on an open-ended SFD, the experimental results were compared with the theoretical results and further analysis was taken to obtain the conditions and parameters which effect the damper coefficient. As a consequence, both the oil-supply way and the oil pressure have significant effects on the damper coefficient, what’s more, the pulse excitation method works exactly well while the SFD damper coefficient is not very big.

关键词

阻尼系数 / 两端开口油膜阻尼器 / 脉冲激励法

Key words

Damping coefficient / Open-ended SFD / Pulse excitation method

引用本文

导出引用
刘占生;张敏;徐方程;徐宁. 基于两端开口的有限长挤压油膜阻尼器的试验研究[J]. 振动与冲击, 2012, 31(18): 137-142
LIU Zhansheng; ZHANG Min; XU Fangcheng; XU Ning. Experimental study of an Open-ended Finite Length Cylindrical Squeeze Film Damper[J]. Journal of Vibration and Shock, 2012, 31(18): 137-142

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