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Nonlinear active vibration damping

Kanestrom, R.K. / Egeland, O.

A multivariable nonlinear controller is investigated for vibration suppression of flexible strutures. The structure considered is a vertical truss structure with collocated piezoelectric force sensors and actuators substituted as active struts. The closed-loop gain matrix consists of a varying term added to a constant term. The varying term is proportional to the measured signal, providing rapid cancellation of large deflections and maintaining low noise sensitivity. L(sub 2)-stability is proved. Experimental results show improvement of performance compare to a corresponding linear controller with constant gain.

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Nonlinear active vibration damping

Kanestrom, R.K. / Egeland, O.

A multivariable nonlinear controller is investigated for vibration suppression of flexible strutures. The structure considered is a vertical truss structure with collocated piezoelectric force sensors and actuators substituted as active struts. The closed-loop gain matrix consists of a varying term added to a constant term. The varying term is proportional to the measured signal, providing rapid cancellation of large deflections and maintaining low noise sensitivity. L(sub 2)-stability is proved. Experimental results show improvement of performance compare to a corresponding linear controller with constant gain.

Nonlinear active vibration damping

Kanestrom, R.K. / Egeland, O.

A multivariable nonlinear controller is investigated for vibration suppression of flexible strutures. The structure considered is a vertical truss structure with collocated piezoelectric force sensors and actuators substituted as active struts. The closed-loop gain matrix consists of a varying term added to a constant term. The varying term is proportional to the measured signal, providing rapid cancellation of large deflections and maintaining low noise sensitivity. L(sub 2)-stability is proved. Experimental results show improvement of performance compare to a corresponding linear controller with constant gain.

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Title:

Nonlinear active vibration damping

Additional title:

Nichtlineare aktive Schwingungsdämpfung

Contributors:

Kanestrom, R.K. (author) / Egeland, O. (author)

Published in:

IEEE Transactions on Automatic Control ; 39 ; 1925-1928

Publication date:

1994

Size:

4 Seiten, 4 Bilder, 8 Quellen

ISSN:

DOI:

https://doi.org/10.1109/9.317126

Type of media:

Article (Journal)

Type of material:

Print

Language:

English

Keywords:

nichtlineare Regelung , Schwingungsverhalten , Dämpfungsglied , Biegsamkeit , Raumfahrzeug , Kraftmessung , piezoelektrischer Wandler , Stellglied , lineares System , Stabilität von Regelungssystemen , Mehrgrößenregelung , Passivität

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