Novel Structure and Thermal Design and Analysis for CubeSats in Formation Flying
Autor: | Sang-Young Park, Geuk-Nam Kim, Yeon-Kyu Park |
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Jazyk: | angličtina |
Rok vydání: | 2021 |
Předmět: |
Materials science
Aerospace Engineering 02 engineering and technology finite element analysis 01 natural sciences law.invention Telescope Reliability (semiconductor) 0203 mechanical engineering law 0103 physical sciences Thermal CubeSat Aerospace engineering 010303 astronomy & astrophysics Coronagraph Motor vehicles. Aeronautics. Astronautics 020301 aerospace & aeronautics ground validation business.industry Natural frequency TL1-4050 Finite element method Space Science business analytical model correlation |
Zdroj: | Aerospace, Vol 8, Iss 150, p 150 (2021) Aerospace Volume 8 Issue 6 |
ISSN: | 2226-4310 |
Popis: | The CANYVAL-C (CubeSat Astronomy by NASA and Yonsei using a virtual telescope alignment for coronagraph) is a space science demonstration mission that involves taking several images of the solar corona with two CubeSats—1U CubeSat (Timon) and 2U CubeSat (Pumbaa)—in formation flying. In this study, we developed and evaluated structural and thermal designs of the CubeSats Timon and Pumbaa through finite element analyses, considering the nonlinearity effects of the nylon wire of the deployable solar panels installed in Pumbaa. On-orbit thermal analyses were performed with an accurate analytical model for a visible camera on Timon and a micro propulsion system on Pumbaa, which has a narrow operating temperature range. Finally, the analytical models were correlated for enhancing the reliability of the numerical analysis. The test results indicated that the CubeSats are structurally safe with respect to the launch environment and can activate each component under the space thermal environment. The natural frequency of the nylon wire for the deployable solar panels was found to increase significantly as the wire was tightened strongly. The conditions of the thermal vacuum and cycling testing were implemented in the thermal analytical model, which reduced the differences between the analysis and testing. |
Databáze: | OpenAIRE |
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