DocumentCode :
3642549
Title :
Numerical and experimental investigation of the thermal behavior of a newly developed attitude Determination Control Unit in a Vacuum environment
Author :
Cem Ömür;A. Bilge Uygur;H. Gürgüç Isik;İlker Tari
Author_Institution :
Satellite Systems, Turkish Aerospace Industries Inc., Ankara, Turkey
fYear :
2011
fDate :
6/1/2011 12:00:00 AM
Firstpage :
453
Lastpage :
458
Abstract :
Within the framework of satellite programs carried out in Turkish Aerospace Industries, Inc. (TAI), a new Attitude Determination Control Unit (ADCU) has been developed. The present study involves the Thermal Vacuum Cycling Tests (TVCT) performed on the ADCU and the thermal mathematical model developed in order to assess the thermal behavior of the equipment under vacuum environment. For the qualification of the ADCU, 8 cycles of TVCT has been performed in a Thermal Vacuum Chamber (TVC). By demonstrating that the functional performance of the ADCU lies within required limits, it was shown that the ADCU is a space-qualified equipment. In addition to this, a thermal mathematical model representing the ADCU and the thermal test environment are developed using THERMICA software and simulations based on this model are carried out by SINDA/G software. Transient and steady-state predictions obtained with the software are compared with the test measurements and a good agreement was observed. Based on this agreement, it is concluded that the mathematical model employed in the present study produces accurate results for the thermal behavior of the ADCU and it is an efficient tool which can be used in the design phases of future equipment with similar properties.
Keywords :
"Temperature sensors","Mathematical model","Heating","Qualifications","Temperature measurement","Software"
Publisher :
ieee
Conference_Titel :
Recent Advances in Space Technologies (RAST), 2011 5th International Conference on
Print_ISBN :
978-1-4244-9617-4
Type :
conf
DOI :
10.1109/RAST.2011.5966876
Filename :
5966876
Link To Document :
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