Compensation of mode shapes with a piezo electric actuator for an optical drive

M.B.G. Cloosterman, H.J. Goossens, M. Steinbuch, M.G.E. Schneiders

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

2 Citations (Scopus)
164 Downloads (Pure)

Abstract

In miniaturized systems (e.g. optical disk drives) much effortis made to design a structure in such a way that the demandson dimensions (height, width) and desired bandwidthare satisfied. Easier, and often cheaper designs can not beused, because they suffer from lower resonance frequencies,which limit the bandwidth. A method is presented formechatronic structures that compensates unwanted bandwidthlimiting resonance frequencies with an additionalpiezo electric actuator. Advantage of this method is thatno extra sensor is used and that the contribution of the piezois much easier to tune (when compared to a notch filter),since it is part of the structure. Disadvantage is that thepiezo influences the dynamics of the original system, whichcomplicates the choice of a suitable piezo actuator.
Original languageEnglish
Title of host publicationProceedings of the 2003 American control conference, ACC : June 4-6, 2003, Denver, Colorado, USA
Place of PublicationPiscataway
PublisherInstitute of Electrical and Electronics Engineers
Pages725-730
Volume1
ISBN (Print)0-7803-7896-2
DOIs
Publication statusPublished - 2003

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