Design and analysis of the Hobby-Eberly Telescope Dark Energy Experiment bridge

Simple item page
dc.contributor.advisorNichols, Steven P.en
dc.contributor.committeeMemberBeno, Joseph H.en
dc.creatorWorthington, Michael Scotten
dc.date.accessioned2010-10-26T16:50:57Zen
dc.date.accessioned2010-10-26T16:51:08Zen
dc.date.accessioned2017-05-11T22:20:28Z
dc.date.available2010-10-26T16:50:57Zen
dc.date.available2010-10-26T16:51:08Zen
dc.date.available2017-05-11T22:20:28Z
dc.date.issued2010-05en
dc.date.submittedMay 2010en
dc.date.updated2010-10-26T16:51:08Zen
dc.descriptiontexten
dc.description.abstractA large structural weldment has been designed to serve as the new star tracker bridge for the Dark Energy Experiment upgrade to the Hobby-Eberly Telescope at McDonald Observatory. The modeling approach, analysis techniques and design details will be of interest to designers of large structures where stiffness is the primary design driver. The design includes detailed structural analysis using finite element models to maximize natural frequency response and limit deflections and light obscuration. Considerable fabrication challenges are overcome to allow integration of precision hardware required for positioning the corrector optics to a precision of less than 5 microns along the 4-meter travel range. This thesis provides detailed descriptions of the bridge geometry, analysis results and challenging fabrication issues.en
dc.format.mimetypeapplication/pdfen
dc.identifier.urihttp://hdl.handle.net/2152/ETD-UT-2010-05-1033en
dc.language.isoengen
dc.subjectHETen
dc.subjectHETDEXen
dc.subjectNatural frequencyen
dc.subjectFrequency responseen
dc.subjectLarge welded structureen
dc.subjectFinite element analysisen
dc.subjectFEAen
dc.subjectBeam theoryen
dc.subjectBridge designen
dc.titleDesign and analysis of the Hobby-Eberly Telescope Dark Energy Experiment bridgeen
dc.type.genrethesisen

Files

Collections

University of Texas at Austin