Journal of the Korean Society for Aviation and Aeronautics (한국항공운항학회지)

The Korean Society for Aviation and Aeronautics (한국항공운항학회)
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Structural Analysis and Integrity Verification of Main Wing of HALE UAV

성층권 장기체공 무인기 주익 구조 해석 및 건전성 평가

  • 박상욱 (한국항공우주연구원 재난치안용무인기사업단) ;
  • 김성준 (한국항공우주연구원 항공기술연구부) ;
  • 신정우 (한국항공우주연구원 항공기술연구부) ;
  • 이승규 (한국항공우주연구원 항공기술연구부) ;
  • 김태욱 (한국항공우주연구원 항공기술연구부)
  • Received : 2019.07.10
  • Accepted : 2019.12.03
  • Published : 2019.12.31
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Abstract

Recently, development of long endurance electric powered airplane has been conducted worldwidely. Light structural weight of a main wing with sufficient structural integrity is essential for long endurance flight. Since a main wing with a slender spar can occur catastrophic fracture under the flight, it is important to establish a design and verification method for both the weight reduction and structural integrity. In this paper, structural design and analysis of the main wing of HALE UAV with tubular spar reinforced with a bulkhead were introduced. The static strength test of the main wing was performed to verify structural integrity under the static load. Then, the experimental result was compared with an analytical result from a finite element analysis. It was concluded that the developed light weight main wing would have sufficient structural integrity under the flight operation.

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References

  1. Ross, H., "Fly around the world with a solar powered airplane," The 26th Congress of International Council of the Aeronautical Sciences proceedings(AIAA-2008-8954), 2008.
  2. Frulla, G. and Cestino, E., "Design, manufacturing and testing of a HALE-UAV structural demonstrator," Composite Structures, 83, 2008, pp.143-153. https://doi.org/10.1016/j.compstruct.2007.04.008
  3. "FAI Record ID No.16052" Federation Aeronautique International. Retrieved 4 December 2012.
  4. Park, S. W., Shin, J. W., Park, I. K., Lee, M. H., Woo, D. H., Kim, S. J., and Ahn, S. M., "Development of main wing structure of long endurance electric powered UAV," Aerospace Engineering and Technology, 12(1), 2013, pp. 1-9.
  5. Park, S. W., Shin, J. W., Lee, M. H., and Kim, T. U., "Non-linear structural analysis of main wing spar of high altitude long endurance UAV," Journal of Korean Society for Aviation and Aeronautics, 23(1), 2015, pp. 24-29. https://doi.org/10.12985/ksaa.2015.23.1.024
  6. Shin, J. W., Park, S. W., Lee, M. H., and Kim, T. U., "Light wing spar design for High altitude long endurance UAV," Journal of Korean Society for Aviation and Aeronautics, 22(2), 2014, pp. 27-33. https://doi.org/10.12985/ksaa.2014.22.2.027
  7. Park, S. W., Kim, S. J., Kim, H. K., Shin, J. W., Lee, S. G., and Kim, T. K., "Structural analysis of wing spar of stratosphere HALE UAV," Proceeding of the Korean Society for Aeronautical and Space Sciences Fall Conference, 2017, pp. 704-705.