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Robust control of microvibrations with experimental verification

Tan, A.C.H., Meurers, T., Veres, S.M., Aglietti, G. and Rogers, E. (2005) Robust control of microvibrations with experimental verification Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 219, (5), pp. 435-460. (doi:10.1243/095440605X16929).

Record type: Article


The paper addresses the problem of actively attenuating a particular class of vibrations, known as microvibrations, which arise, for example, in panels used on satellites. A control scheme which incorporates feedback action is developed which operates at a set of dominant frequencies in a disturbance spectrum, where the control path model is estimated online. Relative to earlier published techniques, a new feature of the presented controller is the use of the inverse Hessian to improve adaptation speed. The control scheme also incorporates a frequency estimation technique to determine the relevant disturbance frequencies with higher precision than the standard fast Fourier transform (FFT). The control scheme is implemented on an experimental test-bed and the total achieved attenuation, as measured from the experiments, is 26dB. The low computational demand of the control scheme allows for single chip controller implementation, a feature which is particularly attractive for potential applications areas, such as small satellites, where there are critical overall weight restrictions to be satisfied whilst delivering high quality overall performance.

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Published date: 2005
Keywords: microvibrations, active control, robust control, experimental validation
Organisations: Engineering Science Unit, Southampton Wireless Group


Local EPrints ID: 260353
ISSN: 0954-4062
PURE UUID: ec78db6c-1a19-4712-be5a-97e18adabc91

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Date deposited: 21 Jan 2005
Last modified: 06 Sep 2017 16:33

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Author: A.C.H. Tan
Author: T. Meurers
Author: S.M. Veres
Author: G. Aglietti
Author: E. Rogers

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