Browse > Article
http://dx.doi.org/10.12985/ksaa.2014.22.3.068

Structural Design and Analysis for High Altitude Long Endurance UAV  

Kim, Sung Joon (한국항공우주연구원 항공기술연구소)
Lee, Seunggyu (한국항공우주연구원 항공기술연구소)
Kim, Sung Chan (한국항공우주연구원 항공기술연구소)
Kim, Tae-Uk (한국항공우주연구원 항공기술연구소)
Kim, Seungho (한국항공우주연구원 항공기술연구소)
Publication Information
Journal of the Korean Society for Aviation and Aeronautics / v.22, no.3, 2014 , pp. 68-73 More about this Journal
Abstract
Research is being carried out at Korea Aerospace Research Institute with aim of design a HALE UAV(High Altitude Long Endurance Unmanned Air Vehicle). HALE UAVs are ideally suited to provide surveillance, remote sensing and communication relay capabilities for both military and civilian applications. HALE UAVs typically cruise at an altitude between 15 km and 20 km, travelling at low speed and circling specific area of interest. Airframe structural point of view, weight reduction of the airframe structure is the most important method to improve the flight efficiency. High modulus CFRP(Carbon Fiber Reinforced Polymer) has been used in designing the structure in order to minimize the airframe weight. With respect to structural design and analysis, the key question is to decide an adequate airworthiness certification base to define suitable load cases for sizing of various structural components. In this study, FAR(Federal Aviation Regulation) 23 have constituted the guidance and benchmark throughout all structural studies. And the MSC/FlightLoads was introduced to analyze the flight loads for the HALE UAV. The MSC/FlightLoads can compute the flexible air load and analyzed loads are distributed on structural model directly. A preliminary structural concept was defined in accordance with the estimated inertial and aerodynamic loads. A FEM analysis was carried out using the MSC/Nastran code to predict the static and dynamic behaviour of UAV structure.
Keywords
HALE; Weight Reduction; Load Analysis; Static and Dynamic Behaviour;
Citations & Related Records
연도 인용수 순위
  • Reference
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 "Federal Aviation Regulation (FAR), Part 23 - Airworthiness Standards : Normal, Utility, and Acrobatic Category Airplanes", Federal Aviation Administration, 2009.
3 MSC/NASTRAN user's manual
4 Richard, G., Advanced Strength and Applied Stress Analysis, McGraw-Hill, 1985.
5 ASTM D 3039/D 3039M - 00, "Standard Test Method for Tensile Properties of Polymer Matrix Composite Materials", ASTM International, 2000.