Dynamic transduction characterization of magnetostrictive actuators

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dc.contributor.authorAckerman, Anthony E.en
dc.contributor.committeechairRogers, Craig A.en
dc.contributor.committeememberRobertshaw, Harry H.en
dc.contributor.committeememberLiang, Chenen
dc.contributor.departmentMechanical Engineeringen
dc.date.accessioned2014-03-14T21:50:54Zen
dc.date.adate2009-12-04en
dc.date.available2014-03-14T21:50:54Zen
dc.date.issued1993-12-06en
dc.date.rdate2009-12-04en
dc.date.sdate2009-12-04en
dc.description.abstractThe objective of this thesis is to develop an analysis approach for formulation of transduction or input/output representations for magnetostrictive actuators. This transduction model is developed through application of an electro-magneto-mechanical impedance modeling approach which combines both the mechanical dynamics and coupled behavior of the actuator device. Lumped and continuous mechanical impedance elements model the actuator dynamics and the constitutive relationships for Terfenol-D characterize the electro-magneto-mechanical interaction. Experimental analysis of a Terfenol-D actuator serves to verify the developed models and provides an indication of actuator non-linearity. The developed transduction model allows for various device behavior analysis including dissipative power consumption, force and stroke output, and efficiency as a transducer. An actuator design strategy based upon the dynamics of the actuator and a driven external system is presented and allows for analysis of various actuator behaviors in terms of device parameters. The Terfenol-D actuator as a collocated actuator/sensor is also made possible with the transduction model.en
dc.description.degreeMaster of Scienceen
dc.format.extentxvi, 174 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-12042009-020103en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-12042009-020103/en
dc.identifier.urihttp://hdl.handle.net/10919/46086en
dc.language.isoenen
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V855_1993.A324.pdfen
dc.relation.isformatofOCLC# 30505551en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V855 1993.A324en
dc.subject.lcshActuatorsen
dc.subject.lcshMagnetostrictive transducersen
dc.titleDynamic transduction characterization of magnetostrictive actuatorsen
dc.typeThesisen
dc.type.dcmitypeTexten
thesis.degree.disciplineMechanical Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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