Yüksek Hızlı Sahte Hedef İHA Tasarımı

Abstract

This study consists of design, CFD aerodynamic analysis and optimized selection of a high-speed decoy UAV. The mission requirements for the high-speed decoy are based upon the previous experiences in literature. The requirements are specified as: Maximum altitude of 15000 ft, maximum speed of 450 knots and an endurance of at least 1 hour. The decoy UAV is launched from a pneumatic catapult and lands via a parachute system. It is a highly agile aircraft having a very high maneuverability capability. The aircraft has a 6g sustained and 9g instantaneous load factor. Required payload capacity is set to be as 22 lbs, consisting of a smoke dispenser, a passive radar cross section augmenter (luneberg lens), a chaff and IR dispenser and a miss distance indicator. Since, the aim of this study is to design an optimized high-speed decoy that surpasses its predecessors, a new generation CFD tool is used to achieve the high speed decoy configuration which gives the best aerodynamic performance. Baseline design and other configurations were created according to their vertical wing and tail geometry designs. All models were created in CAD environment and analyzed for different flow regimes and envelopes. Finally, configuration is selected considering various design and performance criteria.