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Model building and verification for active control of microvibrations with probabilistic assessment of the effects of uncertainties

Model building and verification for active control of microvibrations with probabilistic assessment of the effects of uncertainties
Model building and verification for active control of microvibrations with probabilistic assessment of the effects of uncertainties
Microvibrations, generally defined as low amplitude vibrations at frequencies up to $1\; kHz$, are of critical importance in a number of areas. It is now well known that, in general, the suppression of such microvibrations to acceptable levels requires the use of active control techniques which, in turn, require sufficiently accurate and tractable models of the underlying dynamics on which to base controller design and initial performance evaluation. Previous work has developed a systematic procedure for obtaining a finite-dimensional state space model approximation of the underlying dynamics from the defining equations of motion which has then been shown to be a suitable basis for robust controller design. In this paper, we describe the experimental validation of this model prior to experimental studies to determine the effectiveness of the designed controllers. This includes details of the experimental rig and also the use of methods for assessing the safety of the resulting structure against uncertain parameters.
microvibrations, modelling, active control, uncertainty assessment
0954-4062
389-399
Aglietti, G.S.
e44d0dd4-0f71-4399-93d2-b802365cfb9e
Langley, R.S.
3fac905f-197c-45b4-bd7c-c2df2235e279
Rogers, E.
611b1de0-c505-472e-a03f-c5294c63bb72
Gabriel, S.B.
ac76976d-74fd-40a0-808d-c9f68a38f259
Aglietti, G.S.
e44d0dd4-0f71-4399-93d2-b802365cfb9e
Langley, R.S.
3fac905f-197c-45b4-bd7c-c2df2235e279
Rogers, E.
611b1de0-c505-472e-a03f-c5294c63bb72
Gabriel, S.B.
ac76976d-74fd-40a0-808d-c9f68a38f259

Aglietti, G.S., Langley, R.S., Rogers, E. and Gabriel, S.B. (2004) Model building and verification for active control of microvibrations with probabilistic assessment of the effects of uncertainties. Proceedings of the Institution of Mechanical Engineers Part C: Journal of Mechanical Engineering Science, 218 (4), 389-399. (doi:10.1177/095440620421800404).

Record type: Article

Abstract

Microvibrations, generally defined as low amplitude vibrations at frequencies up to $1\; kHz$, are of critical importance in a number of areas. It is now well known that, in general, the suppression of such microvibrations to acceptable levels requires the use of active control techniques which, in turn, require sufficiently accurate and tractable models of the underlying dynamics on which to base controller design and initial performance evaluation. Previous work has developed a systematic procedure for obtaining a finite-dimensional state space model approximation of the underlying dynamics from the defining equations of motion which has then been shown to be a suitable basis for robust controller design. In this paper, we describe the experimental validation of this model prior to experimental studies to determine the effectiveness of the designed controllers. This includes details of the experimental rig and also the use of methods for assessing the safety of the resulting structure against uncertain parameters.

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Published date: 1 April 2004
Keywords: microvibrations, modelling, active control, uncertainty assessment
Organisations: Engineering Science Unit, Southampton Wireless Group

Identifiers

Local EPrints ID: 258946
URI: https://eprints.soton.ac.uk/id/eprint/258946
ISSN: 0954-4062
PURE UUID: 7432c735-42cb-49d9-94ae-82751843b8ba

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Date deposited: 11 Oct 2004
Last modified: 18 Jul 2017 09:29

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