Aircraft cruise performance optimization using chattering controls

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dc.contributor.authorBhardwaj, Pradeepen
dc.contributor.committeechairKelley, Henry J.en
dc.contributor.committeememberCliff, Eugene M.en
dc.contributor.committeememberVanLandingham, Hugh F.en
dc.contributor.departmentAerospace Engineeringen
dc.date.accessioned2014-03-14T21:49:48Zen
dc.date.adate2013-11-15en
dc.date.available2014-03-14T21:49:48Zen
dc.date.issued1986-07-05en
dc.date.rdate2013-11-15en
dc.date.sdate2013-11-15en
dc.description.abstractAircraft Cruise Performance is examined by using energy-state modelling to investigate fuel-range optimal trajectories. Chattering controls are considered appropriate when the hodograph is non-convex. Classical steady-state cruise, simple chattering-cruise and the extended chattering-cruise models are studied as constrained parameter-optimization problems. The term "extended chattering" refers to vehicle system modelling extended to maintain vertical equilibrium only on the average. Numerical solution is obtained using a variable-metric gradient-protection algorithm and computational results are presented for three different aircraft. This study shows that simple chattering cruise for certain specific energies can result in substantial fuel savings over classical steady-state cruise. However extended chattering cruise results in only marginal fuel savings when compared to simple chattering cruise.en
dc.description.degreeMaster of Scienceen
dc.format.extentix, 96 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-11152013-040445en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-11152013-040445/en
dc.identifier.urihttp://hdl.handle.net/10919/45750en
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V855_1986.B535.pdfen
dc.relation.isformatofOCLC# 15254974en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V855 1986.B535en
dc.subject.lcshAirplanes -- Control systemsen
dc.titleAircraft cruise performance optimization using chattering controlsen
dc.typeThesisen
dc.type.dcmitypeTexten
thesis.degree.disciplineAerospace Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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