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http://dx.doi.org/10.5139/JKSAS.2010.38.8.758

A Sizing Method for Solar Power Long Endurance UAVs  

Lee, Ju-Ho (한국과학기술원 항공우주공학과 대학원)
Lee, Chang-Gwan (한국과학기술원 항공우주공학과 대학원)
Lim, Se-Sil (서울대학교 기술경영경제정책 대학원)
Kim, Keum-Seong (한국과학기술원 항공우주공학과 대학원)
Han, Jae-Hung (한국과학기술원 항공우주공학과)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.38, no.8, 2010 , pp. 758-766 More about this Journal
Abstract
The design procedure of Solar Power UAVs is complicated because the configuration and required power for flight must be considered simultaneously as the supplied power is influenced by the wing area. In order to minimize trial and error for the Solar Power UAVs design, a systematic sizing method is proposed which can be used to determine whether a Solar Power UAV is feasible for a given mission, and to derive preliminary dimensional specification of it. The sizing procedure begins with initially assumed wing area because the power, lift, and drag of the wing are directly proportional to it. The assumed wing area and mission requirements are then used to determine step by step the airfoil specifications including lift coefficient and drag coefficient, weight, required power, and wing area. This procedure is iterated for each newly assumed wing area until the error between the assumed wing area and calculated wing area becomes significantly small enough. This sizing methodology was applied to previously developed Solar Power UAVs for validation purposes, resulting in good agreement. The methodology was also applied to determine the dimensions and specifications of the Solar Power High-Altitude Long-Endurance UAV.
Keywords
Solar Power UAVs; High-Altitude; Long-Endurance; Sizing method;
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