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dc.contributor.advisorKarpenko, Mark
dc.contributor.advisorRoss, Isaac M.
dc.contributor.authorCrews, Steven R.,II
dc.dateSep-13
dc.date.accessioned2013-11-20T23:36:00Z
dc.date.available2013-11-20T23:36:00Z
dc.date.issued2013-09
dc.identifier.urihttp://hdl.handle.net/10945/37606
dc.descriptionApproved for public release; distribution is unlimiteden_US
dc.description.abstractThis thesis explores the physical and mathematical limitations of two common attitude control systems: one based on reaction wheels and another based on control moment gyroscopes (CMGs). The dynamics are derived from first principles and control algorithms for achieving maximum reaction wheel potential are discussed. The shaped eigenaxis input is utilized to establish baseline maneuver performance. A time-optimal shaped input is introduced and implemented in a feedback setting, subject to the limitations of the Moore-Penrose pseudo-inverse control allocation. Finally, a feed-forward plus feedback controller is introduced to implement the time-optimal torque inputs directly to the reaction wheels. This obviates the need for the pseudo-inverse control allocation, and therefore exploits the total capacities of both the reaction wheel momentum envelope and torque envelope. These reaction wheel control approaches are compared with CMG performance to establish spacecraft size and slew parameters that make the use of reaction wheels a reasonable choiceen_US
dc.description.urihttp://archive.org/details/increasingslewpe1094537606
dc.publisherMonterey, California: Naval Postgraduate Schoolen_US
dc.rightsThis publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. As such, it is in the public domain, and under the provisions of Title 17, United States Code, Section 105, may not be copyrighted.en_US
dc.titleIncreasing slew performance of reaction wheel attitude control systemsen_US
dc.typeThesisen_US
dc.contributor.departmentMechanical and Aerospace Engineering (MAE)
dc.subject.authorreaction wheelen_US
dc.subject.authorcontrol moment gyroscopeen_US
dc.subject.authorCMGen_US
dc.subject.authormomentum envelopeen_US
dc.subject.authortorque envelopeen_US
dc.subject.authoroptimizationen_US
dc.subject.authoroptimal controlen_US
dc.subject.authorpseudo-inverseen_US
dc.subject.authorDIDOen_US
dc.subject.authorscalingen_US
dc.subject.authoreffective eigenaxisen_US
dc.subject.authorreaction wheel advantage angleen_US
dc.description.recognitionOutstanding Thesisen_US
dc.description.serviceMajor, United States Armyen_US
etd.thesisdegree.nameMaster of Science in Astronautical Engineering and Master of Science in Mechanical Engineering and Astronautical Engieeren_US
etd.thesisdegree.levelMastersen_US
etd.thesisdegree.disciplineAstronautical and Mechanical Engineeringen_US
etd.thesisdegree.grantorNaval Postgraduate Schoolen_US


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