Accuracy requirements for environmental heat fluxes simulation at spacecraft thermal vacuum testing
Abstract
A method of error analysis is suggested for environmental heat flux of a spacecraft surface. The method is based on local examination of stationary thermal conditions at the spacecraft shell element with limited thermal resistance. Various coefficients are introduced; they characterize relations between environmental heat flux errors and spacecraft interior temperature errors. Analytical expressions and graphic dependencies for those coefficients are obtained. The method suggested is applied to the analysis of spacecraft thermal conditions errors, which are connected with mean heat fluxes errors and with spatial uniformity of heat fluxes in test facilities.
- Publication:
-
ESA Special Publication
- Pub Date:
- December 1991
- Bibcode:
- 1991secs.conf..433A
- Keywords:
-
- Environment Effects;
- Heat Flux;
- Spacecraft Temperature;
- Thermal Analysis;
- Thermal Vacuum Tests;
- Heat Exchangers;
- Mathematical Models;
- Parameter Identification;
- Thermal Resistance;
- Spacecraft Design, Testing and Performance