Numerical Investigation of an Unmanned Aerial Vehicle Launch from Military Transport Aircrafts

IF 1.5 3区工程技术 Q2 ENGINEERING, AEROSPACE

Journal of Aircraft Pub Date : 2023-11-07 DOI:10.2514/1.c037360

Andreas Goerttler, Christian Schnepf

引用次数: 0

Abstract

Launching a fixed-wing unmanned aerial vehicle (UAV) out of the cargo hold of a flying transport aircraft (TA) is numerically investigated. A numerical tool chain is established to capture the dynamic motion of the UAV during launch, in which the DLR-TAU Code flow solver is coupled with a flight mechanics tool. A parameter study investigates how the UAV launch speed, position, and orientation relative to the loading platform of two different TAs affect its trajectory and aerodynamic behaviors. Furthermore, the influence of the angle of attack of the TA on the UAV trajectory and pitch angle is analyzed. This information will help design a launch mechanism that ensures a safe separation and aerodynamically stable flight after launch.

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军用运输机上无人机发射的数值研究

对固定翼无人机(UAV)从飞行运输机的货舱中起飞进行了数值研究。通过将DLR-TAU代码流解算器与飞行力学工具相结合，建立了捕获无人机发射过程动态运动的数值工具链。通过参数研究，研究了两种不同载荷下无人机的发射速度、位置和相对于载荷平台的方向对其弹道和气动性能的影响。进一步分析了TA的攻角对无人机弹道和俯仰角的影响。这些信息将有助于设计一种发射机制，以确保发射后的安全分离和空气动力学稳定飞行。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Aircraft 工程技术-工程：宇航

CiteScore

4.50

自引率

31.80%

发文量

141

审稿时长

6 months

期刊介绍： This Journal is devoted to the advancement of the applied science and technology of airborne flight through the dissemination of original archival papers describing significant advances in aircraft, the operation of aircraft, and applications of aircraft technology to other fields. The Journal publishes qualified papers on aircraft systems, air transportation, air traffic management, and multidisciplinary design optimization of aircraft, flight mechanics, flight and ground testing, applied computational fluid dynamics, flight safety, weather and noise hazards, human factors, airport design, airline operations, application of computers to aircraft including artificial intelligence/expert systems, production methods, engineering economic analyses, affordability, reliability, maintainability, and logistics support, integration of propulsion and control systems into aircraft design and operations, aircraft aerodynamics (including unsteady aerodynamics), structural design/dynamics , aeroelasticity, and aeroacoustics. It publishes papers on general aviation, military and civilian aircraft, UAV, STOL and V/STOL, subsonic, supersonic, transonic, and hypersonic aircraft. Papers are sought which comprehensively survey results of recent technical work with emphasis on aircraft technology application.