Multifidelity Design of Structurally Embedded Waveguides

dc.contributor.authorBrooks, Josephen
dc.contributor.authorCanfield, Robert A.en
dc.date.accessioned2024-02-27T13:32:33Zen
dc.date.available2024-02-27T13:32:33Zen
dc.date.issued2023-05-09en
dc.description.abstractSlotted waveguides embedded in aircraft skin panels may not support a buckling load without failure in the copper waveguide due to stress concentrations created by the corners of the slots. To create designs strong enough to avoid compressive failure before buckling instability, an initial offset in the copper waveguide may be added so that the supporting skin cover and backplane take additional load to prevent failure at the waveguide slot corners. A structural model is developed to include a gap in the eigenvalue analysis through a prestress term, and subsequently to account for the gap in an optimization procedure. Additionally, a curve fit is used to account for local buckling modes that reduce the plate buckling mode of the final panel design. These factors combine to allow for a low-fidelity model to account for the gap and local buckling without the need for a high-fidelity model using plate or contact modeling. This low-fidelity model is then run through an optimizer, producing designs that are stronger and/or lighter for a fraction of the computational cost of prior high-fidelity models.en
dc.description.versionAccepted versionen
dc.format.extent12 page(s)en
dc.format.mimetypeapplication/pdfen
dc.identifier.doihttps://doi.org/10.2514/1.C037212en
dc.identifier.eissn1533-3868en
dc.identifier.issn0021-8669en
dc.identifier.issue5en
dc.identifier.orcidCanfield, Robert [0000-0003-3679-2815]en
dc.identifier.urihttps://hdl.handle.net/10919/118181en
dc.identifier.volume60en
dc.language.isoenen
dc.publisherAmerican Institute of Aeronautics and Astronauticsen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectStress Concentrationen
dc.subjectAircraft Components and Structureen
dc.subjectStructural Modeling and Simulationen
dc.subjectFinite Element Analysisen
dc.subjectMechanical Propertiesen
dc.subjectSlotted Waveguide Antennaen
dc.subjectSequential Quadratic Programmingen
dc.subjectBuckling Analysisen
dc.subjectStructural Optimizationen
dc.subjectMultidisciplinary Design Optimizationen
dc.titleMultifidelity Design of Structurally Embedded Waveguidesen
dc.title.serialJournal of Aircraften
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten
dc.type.otherArticleen
dc.type.otherEarly Accessen
dc.type.otherJournalen
pubs.organisational-group/Virginia Techen
pubs.organisational-group/Virginia Tech/Engineeringen
pubs.organisational-group/Virginia Tech/Engineering/Aerospace and Ocean Engineeringen
pubs.organisational-group/Virginia Tech/All T&R Facultyen
pubs.organisational-group/Virginia Tech/Engineering/COE T&R Facultyen

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