NDLI: Concepts and analysis for precision segmented reflector and feed support structures

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Concepts and analysis for precision segmented reflector and feed support structures

Content Provider	NASA Technical Reports Server (NTRS)
Author	Miller, Richard K. Thomson, Mark W. Hedgepeth, John M.
Copyright Year	1990
Description	Several issues surrounding the design of a large (20-meter diameter) Precision Segmented Reflector are investigated. The concerns include development of a reflector support truss geometry that will permit deployment into the required doubly-curved shape without significant member strains. For deployable and erectable reflector support trusses, the reduction of structural redundancy was analyzed to achieve reduced weight and complexity for the designs. The stiffness and accuracy of such reduced member trusses, however, were found to be affected to a degree that is unexpected. The Precision Segmented Reflector designs were developed with performance requirements that represent the Reflector application. A novel deployable sunshade concept was developed, and a detailed parametric study of various feed support structural concepts was performed. The results of the detailed study reveal what may be the most desirable feed support structure geometry for Precision Segmented Reflector/Large Deployable Reflector applications.
File Size	2847514
Page Count	94
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19910005987
Archival Resource Key	ark:/13960/t4wh7gj55
Language	English
Publisher Date	1990-12-01
Access Restriction	Open
Subject Keyword	Spacecraft Design, Testing And Performance Structural Design Reflectors Astrophysics Redundancy Deployment Segments Stiffness Shapes Trusses Large Space Structures Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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