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Finite-element-analysis model and preliminary ground testing of controls-structures interaction evolutionary model reflectorResults of two different nonlinear finite element analyses and preliminary test results for the final design of the Controls-Structures Interaction Evolutionary Model are presented. Load-deflection data bases are generalized from analysis and testing of the 16-foot diameter, dish shaped reflector. Natural frequencies and mode shapes are obtained from vibrational analysis. Experimental and analytical results show similar trends; however, future test hardware modifications and finite element model refinement would be necessary to obtain better correlation. The two nonlinear analysis procedures are both adequate techniques for the analysis of prestressed structures with complex geometries.
Document ID
19920013145
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Reaves, Mercedes C. (NASA Langley Research Center Hampton, VA, United States)
Belvin, W. Keith (NASA Langley Research Center Hampton, VA, United States)
Bailey, James P. (Lockheed Engineering and Sciences Co. Hampton, VA., United States)
Date Acquired
September 6, 2013
Publication Date
May 1, 1992
Subject Category
Structural Mechanics
Report/Patent Number
NAS 1.15:4293
NASA-TM-4293
L-17009
Accession Number
92N22388
Funding Number(s)
PROJECT: RTOP 590-14-61-01
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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