Heat chamber parameter choice for nonpressurized earth satellite antenna array thermal tests

Аuthors

Alekseev V. A.^1*, Kudriavtseva N. S.^2**, Titova A. S.^1***

1. Scientific Research Institute of Precision Instruments, 51, Str., Dekabristov, Moscow, 127490, Russia
2. Moscow Aviation Institute (National Research University), 4, Volokolamskoe shosse, Moscow, А-80, GSP-3, 125993, Russia

*e-mail: vladimir.alekceev@niitp.ru
**e-mail: nkudr@mai.ru
***e-mail: da127@yandex.ru

Abstract

Theoretical and experimental approach for heat chamber parameter choosing for thermal tests of active phased antenna array digital radar module operating on nonpressurized Earth satellite is discussed. The suggested approach includes three theoretical and experimental steps. At the first step the digital radar module thermal behavior is tested in heat vacuum chamber that most closely simulates the environmental conditions of the nonpressurized Earth satellite. At the second step mathematical simulation of the digital radar module heat processes in heat chamber is carried out. At the third step the algorithm is developed and the heat chamber parameters are chosen providing the digital radar module temperature field in the heat chamber identical to the temperature field of the same module in the heat vacuum chamber. The criteria of the heat and heat vacuum chambers thermal conditions identity is the criteria of minimum mean square error of the digital radar module temperature fields in the both chambers under the heat release sequence diagrams given in Technical Requirements Specification.
The study conducted proves that the chosen heat chamber is suitable for complex thermal tests of parameters of the active phased antenna array digital radar module intended for operation on nonpressurized Earth satellite. The presented approach opens opportunities to carry out the performed tests for various onboard radio-electronic equipment operating in spacecraft nonpressurized modules in heat chambers instead expensive heat vacuum chambers.

Keywords:

thermal tests, antenna array, digital radar module, heat chamber, nonpressurized Earth satellite

References

1. Alekseev V.A., Kudriavtseva N.S., Malozemov V.V., Pichulin V.S., Titova A.S., Shangin I.A. Vestnik Moskovskogo aviatsionnogo instituta, 2010, vol.17, no.1, pp. 55-61.
   
2. Alekseev V.A., Kudriavtseva N.S., Titova A.S. Electronnyi zhurnal «Trudy MAI», 2011, no.49, availableat: http:/ /www.mai.ru/science/trudy/published.php?ID=27715 (accessed 10.12.2013).
   
3. Kudriavtseva N.S., Malozemov V.V. Vestnik Moskovskogo aviatsionnogo instituta, 2009, vol.16, no.4, pp. 5-14.
   
4. Kudriavtseva N.S. Osnovy proektirovanija jeffektivnyh sistem termoregulirovanija kosmicheskih apparatov (Fundamentals ofDesign ofEffective Spacecraft Thermal Control Systems), Moscow, MAI, 2012, 228p.
5. Alifanov O.M., Vabishhev P.N., Mihajlov V.V. Osnovy identifikacii iproektirovanija teplovih processov isistem (Fundamentals ofidentification and design ofthermal processes and systems), Moscow, Logos, 2001, 400p.
6. Alifanov O.M., Artyukhin E.A., Nenarokomov A.V. Obratnye zadachi vissledovanii slozhnogo teploobmena (Inverse Problems inthe Study ofComplex Heat Exchange), Moscow, Janus-K, 2009, 300p.