Shortening thermal equilibrium test durations by extrapolation of temperatures /the KANTES program/
Abstract
To reduce the duration of the thermal balance tests of spacecraft, the computer program KANTES has been designed. KANTES predicts the equilibrium temperatures during the test by using an algorithm for filtering and extrapolation of measured temperatures. The approach has two stages: at first, a non-linear regression is performed in order to obtain a good estimation of the starting parameters of the second stage, which uses a Kalman filtering technique. Development test runs with KANTES, using existing METEOSAT and OTS thermal test results, show that good agreement between KANTES predictions and measured temperatures can be obtained, and also that considerable time and cost savings can be expected.
- Publication:
-
American Institute of Aeronautics and Astronautics Conference
- Pub Date:
- June 1982
- Bibcode:
- 1982aiaa.confQ....S
- Keywords:
-
- Computer Programs;
- Extrapolation;
- Heat Balance;
- Kalman Filters;
- Spacecraft Design;
- Thermodynamic Equilibrium;
- Cost Reduction;
- Meteosat Satellite;
- Nonlinear Equations;
- Ots (Esa);
- Performance Tests;
- Regression Analysis;
- Fluid Mechanics and Heat Transfer