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Design of a beam-like neutraliser to control flexural waves on an infinite beam

Salleh, H. and Brennan, M.J. (2005) Design of a beam-like neutraliser to control flexural waves on an infinite beam At Proceedings of NOVEM 2005: Noise and Vibration: Emerging Methods International Congress, Theme 1: Prediction for Noise Design. 18 - 21 Apr 2005.

Record type: Conference or Workshop Item (Paper)

Abstract

The control of flexural wave motion in beam-like structures is of considerable interest in engineering practice. One simple method to control this type of wave is to attach a discontinuity or an auxiliary system consisting of a mass-spring-damper system called a vibration neutraliser. However, using such a device will only completely suppress a flexural wave at a single excitation frequency. In practice, although many machines operate at a single frequency, very often there is drift in the excitation frequency. Thus, there is a need to design a wide-band vibration neutraliser to attenuate vibration over a reasonably wide frequency range. This paper discusses an investigation into the design of a beam-like vibration neutraliser to control flexural vibration on an infinite beam to work over a frequency range. The investigation includes the effect of different ways of attaching the beam-like neutraliser to suppress flexural vibrations on an infinite beam. Simple analytical models are developed to aid physical interpretation and to highlight key tuning parameters to facilitate design procedure. Experimental data are also included to validate the theory.

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Published date: 2005
Venue - Dates: Proceedings of NOVEM 2005: Noise and Vibration: Emerging Methods International Congress, Theme 1: Prediction for Noise Design, 2005-04-18 - 2005-04-21

Identifiers

Local EPrints ID: 28518
URI: http://eprints.soton.ac.uk/id/eprint/28518
PURE UUID: adf546ab-2edf-4ae7-9466-dbc4a48ca9e7

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Date deposited: 04 May 2006
Last modified: 17 Jul 2017 16:01

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Contributors

Author: H. Salleh
Author: M.J. Brennan

University divisions

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