Power Regeneration in Actively Controlled Structures

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dc.contributor.authorVujic, Nikolaen
dc.contributor.committeechairLeo, Donald J.en
dc.contributor.committeememberLindner, Douglas K.en
dc.contributor.committeememberInman, Daniel J.en
dc.contributor.departmentMechanical Engineeringen
dc.date.accessioned2014-03-14T20:39:24Zen
dc.date.adate2002-06-05en
dc.date.available2014-03-14T20:39:24Zen
dc.date.issued2002-05-31en
dc.date.rdate2003-06-05en
dc.date.sdate2002-06-05en
dc.description.abstractThe power requirements imposed on an active vibration isolation system are quite important to the overall system design. In order to improve the efficiency of an active isolation system we analyze different feedback control strategies which will provide electrical energy regeneration. The active isolation system is modeled in a state-space form for two different types of actuators: a piezoelectric stack actuator and a linear electromagnetic (EM) actuator. During regenerative operation, the power is flowing from the mechanical disturbance through the electromechanical actuator and its switching drive into the electrical storage device (batteries or capacitors). We demonstrate that regeneration occurs when controlling one or both of the flow states (velocity and/or current). This regenerative control strategy affects the closed loop dynamics of the isolator which sees its damping reduced.en
dc.description.degreeMaster of Scienceen
dc.identifier.otheretd-06052002-153552en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-06052002-153552/en
dc.identifier.urihttp://hdl.handle.net/10919/33425en
dc.publisherVirginia Techen
dc.relation.haspartms_thesis_nikola_vujic.pdfen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectelectromechanical systemen
dc.subjectvibration isolationen
dc.subjectstate-spaceen
dc.subjectenergy regenerationen
dc.subjectControlen
dc.subjectPower flowen
dc.titlePower Regeneration in Actively Controlled Structuresen
dc.typeThesisen
thesis.degree.disciplineMechanical Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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