Recent developments in thermal analysis of large space structures
Abstract
A numerical procedure for analysis of shadowed space heating of sparse structures, SSQ, is discussed. The SSQ program avoids inordinate computational complexity by confining attention to a single elemental location on a structural member of interest throughout an entire orbital period, proceeding then to similar treatment of individual alternate locations. The procedure considers a spacecraft in circular orbit and assumes fixed-Earth orientation of the spacecraft. Shadow orientation and interval duration, merged shadows, and computation of solar heat flux and thermal response are addressed. The output options of the SSQ FORTRAN 5 program and its efficiency are discussed. Application of the system to the analysis of a parabolic expandable truss antenna is considered.
- Publication:
-
Modeling Analysis, and Optimization Issues for Large Space Struct.
- Pub Date:
- February 1983
- Bibcode:
- 1983maoi.rept...33O
- Keywords:
-
- Large Space Structures;
- Mathematical Models;
- Shadows;
- Structural Analysis;
- Temperature Effects;
- Thermal Stresses;
- Trusses;
- Computer Programs;
- Earth Orientation;
- Expandable Structures;
- Fortran;
- Heat Flux;
- Parabolic Antennas;
- Solar Flux;
- Launch Vehicles and Space Vehicles