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 fixedEarth 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