마이크로중력 과학미션 수행용 초소형위성의 구조체 설계와 해석
Abstract
Recently, the use of nanosatellites in the space industry has been receiving increased attention. For the robust construction of a nanosatellite, the structure of the nanosatellite needs to be able to protect avionics and payloads from launch and space environments. In this study, we performed the structural design and analysis to build and implement a robust structure for the Korea Microgravity Science Laboratory nanosatellite. To this end, quasi-static and random vibration analyses were numerically conducted by applying a load of 18.75 G (specified by the GSFC-STD-7000 regulations) to the designed structure. The predicted natural frequency of the designed structure for the nanosatellite was greater than the resonance frequency of the launch vehicle. Additionally, the robustness of the structure was confirmed by the numerical results obtained from the quasi-static and random vibration analyses.
Keywords:
Nanosatellite, Cubesat, Structure, Quasi-static analysis, Modal analysis, Random vibration analysisAcknowledgments
이 논문은 2019년도 정부(과학기술정보통신부)의 재원으로 한국연구재단의 지원을 받아 수행된 연구임(NO.NRF-2017M1A3A3A06016680, 큐브위성 경연대회 및 개발).
References
- Kang, S. W., Han, S. H., Gong, H. C., Choi, G. H., 2013, Current state of CubeSat Development in Korea, KIRI, 11:2 172-178.
- Tsitas, S. R., Kingston, J., 2012, 6U CubeSat Commercial Applications, The Aeronautical Journal, 116 189-198. [https://doi.org/10.1017/S0001924000006692]
- Park, J. P., Jung, I. S., Park, S. M., Lee, S. W., 2017, Design and Analysis for CubeSat Sun Sensor, Korean Society for Aeronautical & Space Sciences Spring Conference, 286-288.
- Chol, W. S., Kim, H. D., Lee, S. H., 2016, The Development of High Performance On-board Computer Platform for the CubeSat, KSAS Fall Conference, 453-455.
- Han, S. H., Choi, Y. J., Cho, D. H., Choi, W. S., Gong, H. C., Kim, H. D., Choi, G. H., 2017, Analysis of Cubesat Development Status in Korea, Journal of the Korean Society for Aeronautical & Space Sciences, 45:11 975-988. [https://doi.org/10.5139/JKSAS.2017.45.11.975]
- Mehrparvar, A., Pignatelli, D., Carnahan, J., Munakata, R., Lan, W., Toorian, A., Hutputanasin, A., Lee, S., 2014, Cubesat Design Specification(CDS) REV 13, The CubeSat Project, SanLuis Obispo, CA, 1-42.
- Joao, A. H. F., 2012, Istnanosat-1 Heart Processing and Digital Communications Unit Master Thesis, Instituto Superior Tecnico University Portugal.
- Israr, A., 2014, Vibration and Modal Analysis of Low Earth Orbit Satellite, Shock and vibration, 2014:4 740102-740102. [https://doi.org/10.1155/2014/740102]
- Shin, H. S., 2018, A Study on the Safety Design of the Thermal/Structure Subsystem for the 6U HiREV Mission Master Thesis, University of Science and Technology, Republic of Korea.
- Bauer, J., Carter, M., Kelley, K., Mello, E., Neu, S., Orphanos, A., Shaffer, T and Withrow, A., 2012, Mechanical, Power, and Thermal Subsystem Design for a CubeSat Mission, Degree Thesis, Worchester Polytechnic Institute, Massachusetts, USA.
- NASA GSFC, 2013, General Environmental Verification Standard (GEVS) for GSFC Flight Programs and Projects(GSFC-STD-7000A), NASA Goddard Space Flight Center, Greenbelt, MD, USA.
- Leppinen, H., Kestil, A., Tikka, T., Praks, J.,2016, The Aalto-1 Nanosatellite Navigation Subsystem: Development Results and Planned Operations, European Navigation Conference, 2016:5 1-8. [https://doi.org/10.1109/EURONAV.2016.7530545]
- Song, S., Kim, R., Chang, Y. K., 2018, Design and Implementation of 3U CubeSat Platform Architecture, International Journal of Aerospace Engineering, 2018 1-17. [https://doi.org/10.1155/2018/2079219]
- Midas IT, 2011, viewed 4 April 2019, NFX Modal Analysis, <http://nfx.co.kr/techpaper/keyword_view.asp?idx=36, >.
- Shin, W. H., Oh, I. K., Han, J. H., Oh, S. H., Lee, I., Kim, C. G., Park, J. H., 2001, Finite Element Analysis for Satellite Antenna Structures Subject to Forced Sinusoidal Vibration, Proceedings of the KSCM Spring Conference, 13-18.