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dc.contributor.authorFan, Frank H.
dc.contributor.authorHall, Steven
dc.date.accessioned2015-06-29T14:39:32Z
dc.date.available2015-06-29T14:39:32Z
dc.date.issued2014-05
dc.identifier.urihttp://hdl.handle.net/1721.1/97544
dc.description.abstractThis paper investigates the dynamics of the SMART rotor, and presents a method to design a gain-scheduled controller to reduce the harmonic vibration throughout the flight envelope. The dynamics of the SMART rotor was examined at various flight conditions through nonlinear simulation. The simulation results showed that the dynamics is strongly dependent on the advance ratio, but only weakly dependent on the blade loading and the rotor shaft angle. To reduce the higher harmonic vibration throughout the flight envelope, a controller gain-scheduled on the advance ratio is presented. Output from linear time-invariant higher harmonic controllers designed for different flight conditions are blended to form the gain-scheduled controller. Closed-loop simulations of the helicopter rotor undergoing transitional flight with increasing advance ratio were conducted. The results from the closed-loop simulations show that the 5 per rev normal vibration was reduced by over 97% at the rotor hub.en_US
dc.description.sponsorshipUnited States. Office of Naval Research (Grant N00014-09-1-0902)en_US
dc.language.isoen_US
dc.publisherAmerican Helicopter Society International, Inc.en_US
dc.relation.isversionofhttps://vtol.org/store/product/gainscheduled-higher-harmonic-control-for-full-flight-envelope-vibration-reduction-9498.cfmen_US
dc.rightsCreative Commons Attribution-Noncommercial-Share Alikeen_US
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/4.0/en_US
dc.sourceProf. Hall Via Barbara Williamsen_US
dc.titleGain-Scheduled Higher Harmonic Control for Full Flight Envelope Vibration Reductionen_US
dc.typeArticleen_US
dc.identifier.citationFan, Frank H., and Steven R. Hall. "Gain-Scheduled Higher Harmonic Control for Full Flight Envelope Vibration Reduction." American Helicopter Society 70th Annual Forum (May 2014).en_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Aeronautics and Astronauticsen_US
dc.contributor.approverHall, Stevenen_US
dc.contributor.mitauthorHall, Stevenen_US
dc.relation.journalProceedings of the American Helicopter Society 70th Annual Forumen_US
dc.eprint.versionAuthor's final manuscripten_US
dc.type.urihttp://purl.org/eprint/type/ConferencePaperen_US
eprint.statushttp://purl.org/eprint/status/NonPeerRevieweden_US
dspace.orderedauthorsFan, Frank H.; Hall, Steven R.en_US
mit.licenseOPEN_ACCESS_POLICYen_US


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