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Active vibration isolation using decentralized velocity feedback control

Active vibration isolation using decentralized velocity feedback control
Active vibration isolation using decentralized velocity feedback control
Isolating a piece of delicate equipment from the vibration of a base structure is of practical importance in a number of engineering fields. Examples are the isolation of instrument boxes in aeroplane and the isolation of telescopes and antennas in satellites. In the majority of cases, the base is flexible and vibrates with an upredictable waveform which has a broadband spectrum. The active isolation of a vibration-sensitive equipment structure from a vibrating base is studied in this paper. Passive anti-vibration mounts are widely used to support the equipment and protect it from severe base vibration. However, conventional passive mounts suffer from an inherent trade-off between high frequency isolation and amplification of vibration at the fundamental mounted resonance frequency. General the best isolation performance is achieved by using an active system in combination with a passive mount, where the fundamental resonance can be actively controlled without reducing the high frequency performance.
0819445290
119-126
International Society for Optical Engineering
Brennan, Michael J.
87c7bca3-a9e5-46aa-9153-34c712355a13
Elliott, Stephen J.
721dc55c-8c3e-4895-b9c4-82f62abd3567
Huang, X.
44c6d7c9-07ca-436c-9cbe-1ba9a2f834f9
Culshaw, Brian
Brennan, Michael J.
87c7bca3-a9e5-46aa-9153-34c712355a13
Elliott, Stephen J.
721dc55c-8c3e-4895-b9c4-82f62abd3567
Huang, X.
44c6d7c9-07ca-436c-9cbe-1ba9a2f834f9
Culshaw, Brian

Brennan, Michael J., Elliott, Stephen J. and Huang, X. (2003) Active vibration isolation using decentralized velocity feedback control. Culshaw, Brian (ed.) In European Workshop on Smart Structures in Engineering and Technology. vol. 4763, International Society for Optical Engineering. pp. 119-126 . (doi:10.1117/12.508681).

Record type: Conference or Workshop Item (Paper)

Abstract

Isolating a piece of delicate equipment from the vibration of a base structure is of practical importance in a number of engineering fields. Examples are the isolation of instrument boxes in aeroplane and the isolation of telescopes and antennas in satellites. In the majority of cases, the base is flexible and vibrates with an upredictable waveform which has a broadband spectrum. The active isolation of a vibration-sensitive equipment structure from a vibrating base is studied in this paper. Passive anti-vibration mounts are widely used to support the equipment and protect it from severe base vibration. However, conventional passive mounts suffer from an inherent trade-off between high frequency isolation and amplification of vibration at the fundamental mounted resonance frequency. General the best isolation performance is achieved by using an active system in combination with a passive mount, where the fundamental resonance can be actively controlled without reducing the high frequency performance.

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More information

Published date: March 2003
Venue - Dates: European Workshop on Smart Structures in Engineering and Technology, 2002-05-21 - 2002-05-23

Identifiers

Local EPrints ID: 46573
URI: https://eprints.soton.ac.uk/id/eprint/46573
ISBN: 0819445290
PURE UUID: d571be8e-4ada-4358-983b-6abd6d1225d9

Catalogue record

Date deposited: 27 Jul 2007
Last modified: 13 Mar 2019 21:02

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