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Proceedings Paper

Track creep: experience, modeling efforts, and consequences of work done at the 100 meter Green Bank Telescope
Author(s): Dennis Egan
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Paper Abstract

This document will discuss the efforts and progress made in understanding, modeling, quantifying, and mitigating the stresses and behavior induced by creep motion in the 100 meter Green Bank Telescope's (GBT) azimuth track. From its commissioning the GBT azimuth track has been plagued by the side effects of creep motion induced by the 1,000,000 lb rolling load of each of its wheels. This paper will discuss the degrading effects of creep motion, similarities seen in other track systems, and the mitigation efforts employed to maintain track performance. It will also discuss efforts to understand and numerically model the track behavior, efforts to bound stresses using classical calculations, and suggest the direction for further work.

Paper Details

Date Published: 10 November 2011
PDF: 9 pages
Proc. SPIE 8336, Integrated Modeling of Complex Optomechanical Systems, 83360M (10 November 2011); doi: 10.1117/12.915263
Show Author Affiliations
Dennis Egan, National Radio Astronomy Observatory (United States)

Published in SPIE Proceedings Vol. 8336:
Integrated Modeling of Complex Optomechanical Systems
Torben Andersen; Anita Enmark, Editor(s)

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