Vibration isolation system combining zero-power magnetic suspension with springs

被引：78

作者：

Mizuno, Takeshi ^{[1
]}

Takasaki, Masaya ^{[1
]}

Kishita, Daisuke ^{[1
]}

Hirakawa, Keiichiro ^{[1
]}

机构：

[1] Saitama Univ, Dept Mech Engn, Sakura Ku, Saitama 3388570, Japan

来源：

CONTROL ENGINEERING PRACTICE | 2007年 / 15卷 / 02期

关键词：

magnetic suspension; magnetic bearings; active control; vibration damper; springs; accelerometers;

D O I：

10.1016/j.conengprac.2006.06.001

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

An active vibration isolation system using zero-power magnetic suspension was studied analytically and experimentally. Since a zeropower magnetic suspension system behaves as if it has negative stiffness, connecting it in series with a normal spring can generate infinite stiffness against disturbances acting on an isolation table. This property is maintained even when a suspension that supports the weight of the isolation table is introduced in parallel with the serial combination. Analysis of a simple model involving a single-axis apparatus clarified the fundamental characteristics of the system. The force-displacement characteristics of the zero-power magnetic suspension were measured to estimate the negative stiffness properties. It was experimentally confirmed that combining a zero-power magnetic suspension with a normal spring generates high stiffness against static direct disturbances acting on an isolation table. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：187 / 196

页数：10

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