An optimization study to minimize surface distortions of a hoopcolumn antenna
Abstract
An automated procedure to lessen the tedium of manual approach currently used to minimize surface distortions in a hoop/column antenna is studied. Three fundamental elements are used for the study: (1) The finite element analysis program is used to calculate the antenna surface distortions due to externally applied loads; (2) a general purpose optimization program is used to determine the set of control cable tensions which minimize the antenna surface distortions; and (3) another program is used to calculate the best fit parabola passing through a distorted antenna shape and to calculate the RMS distortion error. The interim results of this feasibility study are given.
 Publication:

In NASA. Langley Research Center Large Space Antenna Systems Technol
 Pub Date:
 April 1985
 Bibcode:
 1985lsas.rept..407W
 Keywords:

 Large Space Structures;
 Optimization;
 Spacecraft Antennas;
 Structural Design Criteria;
 Surface Distortion;
 Cables;
 Computer Techniques;
 Control Simulation;
 Finite Element Method;
 Loads (Forces);
 Pressure Distribution;
 Temperature Distribution;
 Tensile Stress;
 Launch Vehicles and Space Vehicles