Medial surface transformations for rapid approximation of casting solidification

dc.contributor.authorHouser, Scott A.en
dc.contributor.committeechairBohn, Jan Helgeen
dc.contributor.committeememberDeisenroth, Michael P.en
dc.contributor.committeememberMyklebust, Arviden
dc.contributor.departmentMechanical Engineeringen
dc.date.accessioned2014-03-14T21:47:08Zen
dc.date.adate2005-10-07en
dc.date.available2014-03-14T21:47:08Zen
dc.date.issued1996-07-05en
dc.date.rdate2005-10-07en
dc.date.sdate2005-10-07en
dc.description.abstractThis thesis demonstrates the feasibility of using a medial surface transformation as a tool to rapidly approximate the solidification patterns of convex faceted solid models of castings. The medial surface transformation is used to automate the greatest included sphere approach to solidification pattern approximation. The experimental software of this thesis extracts the medial surface transformation from a convex faceted model by computing the model's Voronoi diagram and uses it to identify casting hot spots and cooling patterns. Comparison with a finite difference method (FDM) solution showed that the locations and shapes of hot spots predicted by FDM converge to the shapes and locations predicted by the experimental software.en
dc.description.degreeMaster of Scienceen
dc.format.extentx, 140 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-10072005-094859en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-10072005-094859/en
dc.identifier.urihttp://hdl.handle.net/10919/45089en
dc.language.isoenen
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V855_1996.H687.pdfen
dc.relation.isformatofOCLC# 35731340en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectmeasurement instrumentsen
dc.subject.lccLD5655.V855 1996.H687en
dc.titleMedial surface transformations for rapid approximation of casting solidificationen
dc.typeThesisen
dc.type.dcmitypeTexten
thesis.degree.disciplineMechanical Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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