Design of a flexure mount for optics in dynamic and cryogenic environments

Persistent Link:
http://hdl.handle.net/10150/276741
Title:
Design of a flexure mount for optics in dynamic and cryogenic environments
Author:
Pollard, Lloyd Wayne, 1936-
Issue Date:
1988
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
The design of the flexure mount recently submitted to NASA Ames for the structural support of the primary mirror of the Space Infrared Telescope Facility (SIRTF) is presented. The flexure system must passively accommodate the differential thermal contraction between the glass mirror and the aluminum structure of the telescope during cryogenic cooldown. Further, it must support the one meter diameter, 116 kilogram (258 pound) primary mirror during a severe launch to orbit. Procedures used to establish the required radial compliance using computer programs NASTRAN and FRINGE are discussed. The parametric design program developed to study early concepts is presented. Methods of combining modal responses resulting from a displacement response spectrum analysis are discussed, and a combination scheme called MRSS, Modified Root of Sum of Squares, is presented. Modal combination schemes using MRSS, SRSS, and ABS are compared to the results of a Modal Frequency Response analysis.
Type:
text; Thesis-Reproduction (electronic)
Keywords:
Lens mounts -- Design and construction.; Orbiting astronomical observatories -- Design and construction.; Astronomical instruments -- Design and construction.; Infrared telescopes -- Design and construction.
Degree Name:
M.S.
Degree Level:
masters
Degree Program:
Graduate College; Civil Engineering and Engineering Mechanics
Degree Grantor:
University of Arizona
Advisor:
Richard, Ralph M.

Full metadata record

DC FieldValue Language
dc.language.isoen_USen_US
dc.titleDesign of a flexure mount for optics in dynamic and cryogenic environmentsen_US
dc.creatorPollard, Lloyd Wayne, 1936-en_US
dc.contributor.authorPollard, Lloyd Wayne, 1936-en_US
dc.date.issued1988en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractThe design of the flexure mount recently submitted to NASA Ames for the structural support of the primary mirror of the Space Infrared Telescope Facility (SIRTF) is presented. The flexure system must passively accommodate the differential thermal contraction between the glass mirror and the aluminum structure of the telescope during cryogenic cooldown. Further, it must support the one meter diameter, 116 kilogram (258 pound) primary mirror during a severe launch to orbit. Procedures used to establish the required radial compliance using computer programs NASTRAN and FRINGE are discussed. The parametric design program developed to study early concepts is presented. Methods of combining modal responses resulting from a displacement response spectrum analysis are discussed, and a combination scheme called MRSS, Modified Root of Sum of Squares, is presented. Modal combination schemes using MRSS, SRSS, and ABS are compared to the results of a Modal Frequency Response analysis.en_US
dc.typetexten_US
dc.typeThesis-Reproduction (electronic)en_US
dc.subjectLens mounts -- Design and construction.en_US
dc.subjectOrbiting astronomical observatories -- Design and construction.en_US
dc.subjectAstronomical instruments -- Design and construction.en_US
dc.subjectInfrared telescopes -- Design and construction.en_US
thesis.degree.nameM.S.en_US
thesis.degree.levelmastersen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.disciplineCivil Engineering and Engineering Mechanicsen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorRichard, Ralph M.en_US
dc.identifier.proquest1333615en_US
dc.identifier.oclc20943738en_US
dc.identifier.bibrecord.b18409374en_US
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