The University of Southampton
University of Southampton Institutional Repository

Varying the stiffness of a beam-like neutraliser under fuzzy logic control

Varying the stiffness of a beam-like neutraliser under fuzzy logic control
Varying the stiffness of a beam-like neutraliser under fuzzy logic control
Vibration neutralizers are effective vibration control devices at a single frequency. If they can compensate for drift in the excitation frequency by adjusting their stiffness the performance can be improved, and the range of problems to which they can be applied is broadened. This paper considers a beam-like adaptive vibration neutralizer, and it is shown that the stiffness of the device and hence its natural frequency can be significantly altered by varying the beam cross-section. Several different beam configurations are investigated and the rate of change of stiffness as a function of beam separation is calculated for each configuration. The results are validated by some simple experiments. Real-time stiffness control of a beam-like tuneable neutralizer is also demonstrated both by computer simulation and experiment. The neutralizer is subjected to swept sine excitation over a six-second period and the tuned condition is maintained throughout the excitation period. The efficacy of using a nonlinear fuzzy logic controller is compared with the use of a simple proportional controller.
90-99
Kidner, M.R.F.
62a02d9c-6fd2-4065-91c4-e07d0885708c
Brennan, M.J.
87c7bca3-a9e5-46aa-9153-34c712355a13
Kidner, M.R.F.
62a02d9c-6fd2-4065-91c4-e07d0885708c
Brennan, M.J.
87c7bca3-a9e5-46aa-9153-34c712355a13

Kidner, M.R.F. and Brennan, M.J. (2002) Varying the stiffness of a beam-like neutraliser under fuzzy logic control. Transactions of the ASME: Journal of Vibration and Acoustics, 124 (1), 90-99. (doi:10.1115/1.1423634).

Record type: Article

Abstract

Vibration neutralizers are effective vibration control devices at a single frequency. If they can compensate for drift in the excitation frequency by adjusting their stiffness the performance can be improved, and the range of problems to which they can be applied is broadened. This paper considers a beam-like adaptive vibration neutralizer, and it is shown that the stiffness of the device and hence its natural frequency can be significantly altered by varying the beam cross-section. Several different beam configurations are investigated and the rate of change of stiffness as a function of beam separation is calculated for each configuration. The results are validated by some simple experiments. Real-time stiffness control of a beam-like tuneable neutralizer is also demonstrated both by computer simulation and experiment. The neutralizer is subjected to swept sine excitation over a six-second period and the tuned condition is maintained throughout the excitation period. The efficacy of using a nonlinear fuzzy logic controller is compared with the use of a simple proportional controller.

Full text not available from this repository.

More information

Published date: 2002

Identifiers

Local EPrints ID: 10022
URI: http://eprints.soton.ac.uk/id/eprint/10022
PURE UUID: 1b0f648a-087d-43de-9782-87380a600e9c

Catalogue record

Date deposited: 06 Jan 2005
Last modified: 15 Jul 2019 19:37

Export record

Altmetrics

Contributors

Author: M.R.F. Kidner
Author: M.J. Brennan

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×