20.500.12556/RUL-113744 Semi-analytical multidimensional algorithm for aircraft design optimisation student design build fly (DBF) competition Semianalitični večdimenzionalni algoritem za optimizacijo zasnove letala študentsko tekmovanje Zasnuj - izdelaj - leti! The winner of American Institute of Aeronautics and Astronautics (AIAA)/Textron Aviation/Raytheon Missile Systems Design/Build/Fly (DBF) Competition 2019 was Edvard Rusjan team from Faculty of Mechanical Engineering, University of Ljubljana, Slovenia. Edvard Rusjan team use a strict scientific approach to beat opposing teams from most prestigious US Universities. Team developed a semi-analytic multidimensional algorithm for aircraft design optimization with an aim to maximize competition score in accordance with the competition rules. Two intermediate prototype models were produced and tested for single ground and three flying missions to fine tune algorithm empirical coefficients. Aircraft model aerodynamics was predicted with RANS numerical simulations and dynamic stability with Inviscid Panel method. By measurement in Low Turbulence Wind Tunnel the low drag of selected aircraft external load configuration was verified. Wing and fuselage of competition aircraft model named by Ljubljana students "Pretty Boy" were made of carbon-glass sandwich composite and Aramide honeycomb as sandwich filler. At final fly-off at TIMPA field in Tucson, in final flight mission team pilot Timotej Hofbauer with "Pretty Boy" scored 18 laps in 10 minutes time slot which was absolute record of competition. Runner-up Georgia Institute of Technology team was 22% slower and finished with 14 scored laps. carbon-glass sandwich composite construction number of laps in time slot take-off design parameters aerodynamic drag DBF competition 2019 Edvard Rusjan team kompozitna konstrukcija letala iz ogljikovega stekla število krogov v časovnem režimu vzlet konstrukcijski parametri aerodinamični upor DBF tekmovanje 2019 ekipa Edvarda Rusjana true false true Angleški jezik Slovenski jezik Članek v reviji 2020-01-30 09:20:26 2020-01-30 09:20:32 2022-08-26 03:47:19 0000-00-00 00:00:00 2019 0 0 Str. 728-740 no. 11/12 Vol. 65 Nov./Dec. 2019 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 629.7(045) 0039-2480 10.5545/sv-jme.2019.6459 16945435 762116 RAZ_Sajn_Viktor_2019.pdf RAZ_Sajn_Viktor_2019.pdf 1 8EB3BFAC69819628B184EA25A56F387C bb9c9f6bb00f1045f408a425e10a170849416d2788d4e5c69bb6db87877ad313 267e9e43-a1b8-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=125851 https://www.sv-jme.eu/sl/article/student-design-build-fly-dbf-competition/ 1 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=125850 Fakulteta za strojništvo Strojniški vestnik 0 0 0