An optimization study to minimize surface distortions of a hoop-column 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