Efficient methods for integrated structural-aerodynamic wing optimum design

dc.contributor.authorKao, Pi-Jenen
dc.contributor.committeechairHaftka, Raphael T.en
dc.contributor.committeememberGrossman, Bernarden
dc.contributor.committeememberJohnson, Eric R.en
dc.contributor.committeememberKapania, Rakesh K.en
dc.contributor.committeememberKosmatka, John B.en
dc.contributor.departmentAerospace and Ocean Engineeringen
dc.date.accessioned2015-07-09T20:43:18Zen
dc.date.available2015-07-09T20:43:18Zen
dc.date.issued1989en
dc.description.abstractThe dissertation is focused on the large computational costs of integrated multidisciplinary design. Efficient techniques are developed to reduce the computational costs associated with integrated structural-aerodynamic design. First efficient methods for the calculations of the derivatives of the flexibility matrix and the aerodynamic influence coefficient matrix are developed. An adjoint method is used for the flexibility sensitivity, and a perturbation method is used for the aerodynamic sensitivity. Second a sequential optimization algorithm that employs approximate analysis methods is implemented. Finally, a modular sensitivity analysis, corresponding to the abstraction of a system as an assembly of interacting black boxes, is applied. This method was developed for calculating system sensitivity without modifying disciplinary black-box software packages. The modular approach permits the calculation of aeroelastic sensitivities without the expensive calculation of the derivatives of the flexibility matrix and the aerodynamic influence coefficient matrix.en
dc.description.degreePh. D.en
dc.format.extentix, 86 leavesen
dc.format.mimetypeapplication/pdfen
dc.identifier.urihttp://hdl.handle.net/10919/54211en
dc.language.isoen_USen
dc.publisherVirginia Polytechnic Institute and State Universityen
dc.relation.isformatofOCLC# 19840957en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V856 1989.K366en
dc.subject.lcshAirplanes -- Wings -- Design and constructionen
dc.titleEfficient methods for integrated structural-aerodynamic wing optimum designen
dc.typeDissertationen
dc.type.dcmitypeTexten
thesis.degree.disciplineAerospace and Ocean Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.leveldoctoralen
thesis.degree.namePh. D.en

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