Show simple item record

dc.creatorZierer, J.J.en
dc.creatorMock, J.Ren
dc.creatorBeno, J.Hen
dc.creatorGood, Jen
dc.creatorBooth, J.Aen
dc.creatorLazzarini, Pen
dc.creatorFumi, Pen
dc.creatorAnaclerio, E.en
dc.date.accessioned2016-02-09T22:07:40Zen
dc.date.available2016-02-09T22:07:40Zen
dc.date.issued2010-07en
dc.identifierPN_337en
dc.identifierdoi:10.15781/T21H42en
dc.identifier.citationJ.J. Zierer, J.R. Mock, J.H. Beno, et al., “The Development of high-precision hexapod actuators for the Hobby-Eberly Telescope Wide Field Upgrade,” paper no. 7733-49, Proc. SPIE Astronomical Telescopes and Instrumentation, San Diego, CA, USA, June 27 to July 2, 2010.en
dc.identifier.urihttp://hdl.handle.net/2152/33136en
dc.description.abstractHexapods are finding increased use in telescope applications for positioning large payloads. Engineers from The University of Texas at Austin have been working with engineers from ADS International to develop large, high force, highly precise and controllable hexapod actuators for use on the Wide Field Upgrade (WFU) as part of the Hobby Eberly Telescope Dark Energy Experiment (HETDEX)‡. These actuators are installed in a hexapod arrangement, supporting the 3000+ kg instrument payload which includes the Wide Field Corrector (WFC), support structure, and other optical/electronic components. In addition to force capability, the actuators need to meet the tracking speed (pointing) requirements for accuracy and the slewing speed (rewind) requirements, allowing as many observations in one night as possible. The hexapod actuator stroke (retraction and extension) was very closely monitored during the design phase to make sure all of the science requirements could be met, while minimizing the risk of damaging the WFC optical hardware in the unlikely event of a hexapod actuator or controller failure. This paper discusses the design trade-offs between stiffness, safety, back-drivability, accuracy, and leading to selection of the motor, high ratio worm gear, roller screw, coupling, end mounts, and other key components.en
dc.language.isoenen
dc.relation.ispartofCEM Publicationsen
dc.subjectRotating Machine EM Launchen
dc.subjectHETDEXen
dc.subjectHETen
dc.subjectCEMen
dc.subjecthexapoden
dc.subjectactuatoren
dc.subjectprecisionen
dc.subjectpointingen
dc.subjecttrackeren
dc.titleThe Development of high-precision hexapod actuators for the Hobby-Eberly Telescope Wide Field Upgradeen
dc.typeconference paperen
dc.description.departmentCenter for Electromechanicsen
dc.rights.restrictionopenen


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record