The development of a tunable vibration absorbing isolator

被引：46

作者：

du Plooy, NF ^{[1
]}

Heyns, PS

Brennan, MJ

机构：

[1] Univ Pretoria, Dept Mech & Aeronaut Engn, Dynam Syst Grp, ZA-0002 Pretoria, South Africa

[2] Univ Southampton, Inst Sound & Vibrat Res, Southampton SO9 5NH, Hants, England

来源：

INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES | 2005年 / 47卷 / 07期

关键词：

tunable vibration absorbing isolator;

D O I：

10.1016/j.ijmecsci.2005.04.009

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 [机械工程];

摘要：

This paper describes a tunable vibration absorbing isolator. The device is based on the liquid inertia vibration eliminator, which is modified so that the frequency at which maximum isolation occurs can be changed in real time. This is achieved by using adjustable pneumatic springs. A theoretical model describing the device is derived using Lagrange's equations. The model is used to design a practical device and experimental results confirm the validity of the model. With the experimental device a roll-off of about 90 dB/decade over a 12 Hz frequency band was achieved. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：983 / 997

页数：15

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