Experimental-theoretical study of velocity feedback damping of structural vibrations

dc.contributor.authorSkidmore, Gary R.en
dc.contributor.committeechairHallauer, William L. Jr.en
dc.contributor.committeememberLutze, Frederick H.en
dc.contributor.committeememberSundkvist, Karl E.en
dc.contributor.committeememberCliff, Eugene M.en
dc.contributor.committeememberHendricks, Scott L.en
dc.contributor.departmentAerospace Engineeringen
dc.date.accessioned2014-08-13T14:38:23Zen
dc.date.available2014-08-13T14:38:23Zen
dc.date.issued1985en
dc.description.abstractThis study concerns the active damping of structural vibrations through the application of various forms of velocity feedback control. Active damping will be required for large space structures which are performance-sensitive to motion or inaccurate pointing. Several control forms, including modal-space active damping and direct rate feedback, are analyzed theoretically, and three laboratory models are described. A previous, unsuccessful attempt at control is reviewed and explained. The remaining control forms developed in the theoretical section were implemented successfully and the results compare favorably with theoretical predictions. Each control form is analyzed relative to its own merits and in comparison with other methods. An important point is the stability assured by a dual (colocated) configuration. of velocity sensors and control force actuators. Modal-space active damping is shown to be an effective control method with predictable performance in controlled modes and beneficial spillover into residual (non-controlled) modes.en
dc.description.adminincomplete_metadataen
dc.description.degreePh. D.en
dc.format.extentix, 98 leavesen
dc.format.mimetypeapplication/pdfen
dc.identifier.urihttp://hdl.handle.net/10919/49788en
dc.publisherVirginia Polytechnic Institute and State Universityen
dc.relation.isformatofOCLC# 12876704en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V856 1985.S642en
dc.subject.lcshVibration (Aeronautics) -- Damping -- Experimentsen
dc.subject.lcshLarge space structures (Astronautics)en
dc.subject.lcshStructural dynamics -- Experimentsen
dc.titleExperimental-theoretical study of velocity feedback damping of structural vibrationsen
dc.typeDissertationen
dc.type.dcmitypeTexten
thesis.degree.disciplineAerospace Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.leveldoctoralen
thesis.degree.namePh. D.en

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