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Hybrid wave/mode active vibration control
Department of Mechanical Engineering, University of Michigan.
Institute of Sound and Vibration Research, University of Southampton.
Luleå tekniska universitet.
2001 (English)In: Journal of Sound and Vibration, ISSN 0022-460X, E-ISSN 1095-8568, Vol. 247, no 5, p. 765-784Article in journal (Refereed) Published
Abstract [en]

A hybrid approach to active vibration control is described in this paper. It combines elements of both wave and mode approaches to active control and is an attempt to improve on the performance of these approaches individually. In the proposed hybrid approach, wave control is first applied at one or more points in the structure. It is designed on the basis of the local behaviour of the structure and is intended to absorb vibrational energy, especially at higher frequencies. Then modal control is applied, being designed on the basis of the modified global equations of motion of the structure-plus-wave controller. These are now normally non-self-adjoint. Since the higher order modes are relatively well damped, hybrid control improves the model accuracy and the robustness of the system and gives better broadband vibration attenuation performance. Hybrid wave/mode active vibration control is described with specific reference to the control of a cantilever beam: The particular case considered is that of collocated, point force/sensor feedback wave control combined with modal control designed using pole placement. Numerical and experimental results are presented

Place, publisher, year, edition, pages
2001. Vol. 247, no 5, p. 765-784
Identifiers
URN: urn:nbn:se:ltu:diva-5546DOI: 10.1006/jsvi.2001.3795ISI: 000172087200002Scopus ID: 2-s2.0-0035829658Local ID: 3acea4a0-992e-11de-8da0-000ea68e967bOAI: oai:DiVA.org:ltu-5546DiVA, id: diva2:978420
Note

Validerad; 2001; 20090904 (andbra)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2018-07-10Bibliographically approved

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