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: Mechanical Engineering Science, 219, (5), 435-460. (doi:10.1243/095440605X16929).
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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.
|Keywords:||microvibrations, active control, robust control, experimental validation|
|Subjects:||Q Science > QC Physics
T Technology > TJ Mechanical engineering and machinery
T Technology > TL Motor vehicles. Aeronautics. Astronautics
|Divisions:||Faculty of Physical Sciences and Engineering > Electronics and Computer Science > Comms, Signal Processing & Control
Faculty of Engineering and the Environment > Engineering Sciences
|Date Deposited:||21 Jan 2005|
|Last Modified:||23 Aug 2012 15:28|
|Further Information:||Google Scholar|
|ISI Citation Count:||2|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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