An Efficient Modal Control Strategy for the Active Vibration Control of a Truss Structure

In this paper an efficient modal control strategy is described for the active vibration control of a truss structure. In this approach, a feedback force is applied to each mode to be controlled according to a weighting factor that is determined by assessing how much each mode is excited by the prima...

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Main Authors: Ricardo Carvalhal, Vicente Lopes Júnior, Michael J. Brennan
Format: Article
Language:English
Published: Wiley 2007-01-01
Series:Shock and Vibration
Online Access:http://dx.doi.org/10.1155/2007/457498
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author Ricardo Carvalhal
Vicente Lopes Júnior
Michael J. Brennan
author_facet Ricardo Carvalhal
Vicente Lopes Júnior
Michael J. Brennan
author_sort Ricardo Carvalhal
collection DOAJ
description In this paper an efficient modal control strategy is described for the active vibration control of a truss structure. In this approach, a feedback force is applied to each mode to be controlled according to a weighting factor that is determined by assessing how much each mode is excited by the primary source. The strategy is effective provided that the primary source is at a fixed position on the structure, and that the source is stationary in the statistical sense. To test the effectiveness of the control strategy it is compared with an alternative, established approach namely, Independent Modal Space Control (IMSC). Numerical simulations show that with the new strategy it is possible to significantly reduce the control effort required, with a minimal reduction in control performance.
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spelling doaj-art-0b626f5898d6453787cde861a5230db92025-02-03T05:57:08ZengWileyShock and Vibration1070-96221875-92032007-01-0114639340610.1155/2007/457498An Efficient Modal Control Strategy for the Active Vibration Control of a Truss StructureRicardo Carvalhal0Vicente Lopes Júnior1Michael J. Brennan2Mechanical Engineering Department, Universidade Estadual Paulista, UNESP/Ilha Solteira, 15385-000 Ilha Solteira, SP, BrazilMechanical Engineering Department, Universidade Estadual Paulista, UNESP/Ilha Solteira, 15385-000 Ilha Solteira, SP, BrazilInstitute of Sound and Vibration Research, University of Southampton, Southampton, SO17 1BJ, UKIn this paper an efficient modal control strategy is described for the active vibration control of a truss structure. In this approach, a feedback force is applied to each mode to be controlled according to a weighting factor that is determined by assessing how much each mode is excited by the primary source. The strategy is effective provided that the primary source is at a fixed position on the structure, and that the source is stationary in the statistical sense. To test the effectiveness of the control strategy it is compared with an alternative, established approach namely, Independent Modal Space Control (IMSC). Numerical simulations show that with the new strategy it is possible to significantly reduce the control effort required, with a minimal reduction in control performance.http://dx.doi.org/10.1155/2007/457498
spellingShingle Ricardo Carvalhal
Vicente Lopes Júnior
Michael J. Brennan
An Efficient Modal Control Strategy for the Active Vibration Control of a Truss Structure
Shock and Vibration
title An Efficient Modal Control Strategy for the Active Vibration Control of a Truss Structure
title_full An Efficient Modal Control Strategy for the Active Vibration Control of a Truss Structure
title_fullStr An Efficient Modal Control Strategy for the Active Vibration Control of a Truss Structure
title_full_unstemmed An Efficient Modal Control Strategy for the Active Vibration Control of a Truss Structure
title_short An Efficient Modal Control Strategy for the Active Vibration Control of a Truss Structure
title_sort efficient modal control strategy for the active vibration control of a truss structure
url http://dx.doi.org/10.1155/2007/457498
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