NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Fast Approximate Analysis Of Modified Antenna StructureAbbreviated algorithms developed for fast approximate analysis of effects of modifications in supporting structures upon root-mean-square (rms) path-length errors of paraboloidal-dish antennas. Involves combination of methods of structural-modification reanalysis with new extensions of correlation analysis to obtain revised rms path-length error. Full finite-element analysis, usually requires computer of substantial capacity, necessary only to obtain responses of unmodified structure to known external loads and to selected self-equilibrating "indicator" loads. Responses used in shortcut calculations, which, although theoretically "exact", simple enough to be performed on hand-held calculator. Useful in design, design-sensitivity analysis, and parametric studies.
Document ID
19910000123
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Levy, Roy
(Caltech)
Date Acquired
August 14, 2013
Publication Date
March 1, 1991
Publication Information
Publication: NASA Tech Briefs
Volume: 15
Issue: 3
ISSN: 0145-319X
Subject Category
Mathematics And Information Sciences
Report/Patent Number
NPO-17901
Accession Number
91B10123
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Available Downloads

There are no available downloads for this record.
No Preview Available