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dc.contributor.advisorRoss, I. Michael
dc.contributor.authorStevens, Robert E.
dc.date.accessioned2012-03-14T17:37:48Z
dc.date.available2012-03-14T17:37:48Z
dc.date.issued2002-12
dc.identifier.urihttp://hdl.handle.net/10945/3260
dc.descriptionApproved for public release; distribution in unlimited.en_US
dc.description.abstractOngoing interest in establishing a base on Mars has spurred a need for regular and repeated visits to the red planet using a cycling shuttle to transport supplies, equipment and to retrieve surface samples. This thesis presents an approach to designing an optimal heliocentric cycling orbit, or cycler, using solar sa ils. Results show that solar sails can be used to significantly reduce s Và at Mars and Earth. For example, using a reasonably high performance solar sail, a VM̲ars Và = 2.5 km/s is possible at every synodic period using a two-dimensional orbit model. Lower performance sails were also modeled resulting in paths that behaved more like a ballistic Aldrin cycler with higher Và s. Double rendezvous missions were explored where the spacecraft must match the velocities of both Earth and Mars, offering promising trajectories for Mars sample return missions. The solutions to these missions, although not necessarily cyclers, show that using a sail to rendezvous with and remain near Mars for an optimal amount of time will minimize the total transit time between Earth and Mars. General -purpose dynamic optimization software, DIDO, is used to solve the optimal control problem using a pseudospectral method using both two - and three-dimensional elliptic orbit models.en_US
dc.format.extentxviii, 121 p. : ill. (some col.) ;en_US
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.subject.lcshSolar sailsen_US
dc.subject.lcshOrbit methoden_US
dc.titleDesign of optimal cyclers using solar sailsen_US
dc.typeThesisen_US
dc.contributor.secondreaderByrnes, Dennis
dc.contributor.departmentAeronautics and Astronautics
dc.subject.authorCycler Trajectoryen_US
dc.subject.authorSolar Sailen_US
dc.subject.authorOptimal Designen_US
dc.subject.authorDIDOen_US
dc.subject.authorMars Missionen_US
dc.subject.authorTrajectory Designen_US
dc.subject.authorCycling Orbitsen_US
dc.description.serviceLieutenant Commander, United States Navyen_US
etd.thesisdegree.nameAeronautical and Astronautical Engineeren_US
etd.thesisdegree.disciplineAeuronautics and Astronauticsen_US
etd.thesisdegree.grantorNaval Postgraduate Schoolen_US


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