Çeşitli alçak dünya yörüngelerinde küp uydular için diş isi yüklerinin incelenmesi

Öz

Bu çalışmada, küçük uyduların yapısal panellerine etki eden ışınımsal ısı yükleri çeşitli yörünge konfigürasyonları için simüle edilmiştir. Sınırlı kullanılabilir hacimlere sahip olmaları nedeniyle küçük uyduların termal yönetimleri oldukça zordur. Yörüngedeki uydular sadece ekstrem sıcaklıklara değil, aynı zamanda hızlı sıcaklık değişimlerine de maruz kalırlar. Güvenli çalışma koşullarının sağlanması için uzaydaki termal ortamın dikkatlice analiz edilmesi gerekmektedir. Bu makale, Monte Carlo Işın İzleme (MCRT) yöntemi ile Systema Thermica v4.9.0 programı kullanılarak çeşitli yörünge parametrelerinin uydu panellerine etki eden ısıl ortamın sayısal analizine yer vermektedir. Bu çalışmanın sonuçları, benzer yörüngelerde çalışan uyduların tasarım aşamasında yararlı olabilir.

Anahtar Kelimeler

• Termal analiz
• Termal modelleme
• Uzay ısı akısı
• Alçak Dünya yörüngesi
• Küp uydu

Investigation of external heats for cubesats at various low earth orbits

Abstract

In this paper, radiative heat loads on structural panels of small satellites are simulated for various orbital configurations. Thermal management of small satellites are challenging because of their limited available volumes. Satellites in orbits experience not only extreme temperatures but also rapid temperature changes. In order to provide safe operating conditions, the thermal environment in space must be carefully analyzed. This paper presents a numerical investigation of thermal environment influenced the panels of satellites for various orbital parameters by using Systema Thermica v4.9.0 software with Monte Carlo Ray Tracing (MCRT) method. The results of this study can be useful in the design stage of small satellites operating in similar orbits.

Keywords

• Thermal analysis
• Thermal modeling
• Space heat flux
• Low Earth orbit
• CubeSat

Kaynakça

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