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dc.contributor.authorEldred, Lloyd B.en_US
dc.date.accessioned2014-03-14T21:22:09Z
dc.date.available2014-03-14T21:22:09Z
dc.date.issued1993-02-05en_US
dc.identifier.otheretd-10242005-174006en_US
dc.identifier.urihttp://hdl.handle.net/10919/40147
dc.description.abstractA technique to obtain the sensitivity of the static aeroelastic response of a three dimensional wing model is designed and implemented. The formulation is quite general and accepts any aerodynamic and structural analysis capability. A program to combine the discipline level, or local, sensitivities into global sensitivity derivatives is developed. A variety of representations of the wing pressure field are developed and tested to determine the most accurate and efficient scheme for representing the field outside of the aerodynamic code. Chebyshev polynomials are used to globally fit the pressure field. This approach had some difficulties in representing local variations in the field, so a variety of local interpolation polynomial pressure representations are also implemented. These panel based representations use a constant pressure value~ a bilinearly interpolated value, or a biquadratic ally interpolated value. The interpolation polynomial approaches do an excellent job of reducing the numerical problems of the global approach for comparable computational effort. Regardless of the pressure representation used, sensitivity and response results with excellent accuracy have been produced for large integrated quantities such as wing tip deflection and trim angle of attack. The sensitivities of such things as individual generalized displacements have been found with fair accuracy. In general, accuracy is found to be proportional to the relative size of the derivatives to the quantity itself.en_US
dc.format.mediumBTDen_US
dc.publisherVirginia Techen_US
dc.relation.haspartLD5655.V856_1993.E437.pdfen_US
dc.subjectAirplanes Wings Testing.en_US
dc.subjectAerodynamic measurements.en_US
dc.subject.lccLD5655.V856 1993.E437en_US
dc.titleSensitivity analysis of the static aeroelastic response of a wingen_US
dc.typeDissertationen_US
dc.contributor.departmentAerospace Engineeringen_US
dc.description.degreePh. D.en_US
thesis.degree.namePh. D.en_US
thesis.degree.leveldoctoralen_US
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen_US
thesis.degree.disciplineAerospace Engineeringen_US
dc.contributor.committeechairKapania, Rakesh K.en_US
dc.contributor.committeememberHaftka, Raphael T.en_US
dc.contributor.committeememberJohnson, Eric R.en_US
dc.contributor.committeememberLibrescu, Liviuen_US
dc.contributor.committeememberMason, William H.en_US
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-10242005-174006/en_US
dc.date.sdate2005-10-24en_US
dc.date.rdate2005-10-24
dc.date.adate2005-10-24en_US


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