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dc.contributor.advisorGerba, Alex Jr.
dc.contributor.authorMcIntyre, Lewis Frank
dc.dateJune 1977
dc.date.accessioned2012-11-16T19:15:40Z
dc.date.available2012-11-16T19:15:40Z
dc.date.issued1977-06
dc.identifier.urihttp://hdl.handle.net/10945/18167
dc.descriptionApproved for public release; distribution is unlimited
dc.description.abstractA simplified two-degree-of-freedom simulation in heave and pitch of the XR-3 Captured Air Bubble (CAB) testcraft is developed first in a non- linear form and is subsequently linearized about the steady-state operating point. The model is validated against the six-degree-of-freedom XR-3 Loads and Motions program in the time domain; the linear system is then transformed into the frequency domain by complex matrix inversion. A comparison is made between the linear system frequency response predicted by the two-degree-of- freedom model and that of the Loads and Motions program, as well as actual testcraft data, reduced to the frequency domain by a Fast Fourier Transform (FFT) technique. This comparison of frequency response curves highlights a non-linear mode of CAB craft behavior of possible interest to habitability and seaworthiness studies.
dc.description.urihttp://archive.org/details/investigationofl00mcin
dc.language.isoen_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. Copyright protection is not available for this work in the United States.
dc.subject.lcshAeronauticsen_US
dc.titleInvestigation of a linear, two-degree-of-freedom simulation for the XR-3 Captured Air Bubble (CAB) craft in the frequency domain.en_US
dc.typeThesisen_US
dc.contributor.secondreaderLayton, Donald M.
dc.contributor.corporateNaval Postgraduate School (U.S.)
dc.contributor.departmentAeronautics
dc.subject.authorXR-3
dc.subject.authorlinear model
dc.subject.authorfrequency response
dc.description.serviceLieutenant
etd.thesisdegree.nameM.S. in Aeronautical Engineeringen_US
etd.thesisdegree.levelMastersen_US
etd.thesisdegree.disciplineAeronautical Engineeringen_US
etd.thesisdegree.grantorNaval Postgraduate Schoolen_US


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