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Comparative analysis of on-orbit dynamic performance of several large antenna conceptsA comparative analysis of the on-orbit dynamic performance of four large anetanna concepts is presented. Among the antenna concepts evaluated are: the box truss; tetrahedral truss; warp-radial rib; and the hoop and column antenna designs. The characteristics and magnitudes of the antennas' dynamic response were evaluated in terms of structural displacements and member loads incurred during various slew-rate maneuvers. The results of the dynamic response analysis are compared to the design requirements of the Land Mobile Satellite System (LMSS) with respect to surface accuracy, decenter, defocus, and angular rocking. Comments are made on the effectiveness of structural damping and the application of active controls for vibrational response reduction. Schematic illustrations of the antenna design concepts are provided.
Document ID
19850048249
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Andersen, G. C. (NASA Langley Research Center Hampton, VA, United States)
Garrett, L. B. (NASA Langley Research Center Space Systems Div., Hampton, VA, United States)
Calleson, R. E. (Kentron International, Inc. Hampton, VA, United States)
Date Acquired
August 12, 2013
Publication Date
January 1, 1985
Subject Category
Spacecraft Design, Testing And Performance
Report/Patent Number
AIAA PAPER 85-0818
Meeting Information
Meeting: Structures, Structural Dynamics, and Materials Conference
Location: Orlando, FL
Start Date: April 15, 1985
End Date: April 17, 1985
Accession Number
85A30400
Distribution Limits
Public
Copyright
Other

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