This paper discusses the development of a fully nonlinear flight dynamics model of a hover-capable Air-Launched Uncrewed Aerial System (ALUAS) in order to (1) understand the dynamics, controllability, and airloads during complicated maneuvers and (2) gain insights from simulation to inform the design and operation of future ALUASs. Prior studies conducted wind tunnel tests on full-scale models to measure the airloads on the propeller, isolated fuselage, and full aircraft. The flight dynamics model, once corrected with the test data, was used to simulate maneuvers including hover-to-cruise transition, cruise-to-hover transition, ground launch, air launch from a moving helicopter, and air launch with asymmetric wing unfolding. These simulations demonstrate the capability of the vehicle to perform complicated maneuvers to meet various mission objectives in challenging environments.
Micro unmanned aerial vehicles extend aerial sensing into spaces that are too small, dangerous or improvised for conventional aircraft. Their most vulnerable phase, however, is often the initial seconds of flight. Limited wing area, low-Reynolds-number aerodynamics and strict mass budgets make it difficult to combine e...
Yu-Xin Liu· Applied and Computational En...· 0 citations
The increasing deployment of unmanned ground vehicles (UGVs) demands advanced stabilization systems capable of maintaining precise line-of-sight (LOS) target tracking under dynamic operational conditions. This paper presented a comprehensive parametric simulation framework for the preliminary design and evaluation of t...
Piotr Szmidt, Z. Koruba· Advances in Science and Tech...· 0 citations
This paper presents the design and control strategy for MetaMorpher, a metamorphic Unmanned Aerial Vehicle (UAV), capable of both spinning-wing hover and fixed flying-wing cruise flight. Since control of the cruise configuration is comparatively well established in the literature, this paper focuses on control of the M...
Considering the possibility of engine failure during aerial parking of unmanned aerial vehicles, it is necessary to develop a reasonable emergency landing plan to guide the unmanned aerial vehicle to complete the emergency landing. This article takes the longitudinal control system of unmanned aerial vehicles as the re...
Meng-Lei Li· Journal of Physics, Conferen...· 0 citations
Due to the growth of the unmanned aerial vehicle (UAV) market and the specific tasks they perform, the design of convertible aircraft, such as convertiplanes, is becoming increasingly relevant. These aircraft combine the advantages of helicopters and airplanes: they can take off and land vertically from unprepared surf...
А. S. Batrakov, L. Garipova, М. А. Kauchakova· Civil Aviation High Technolo...· 0 citations
Low-altitude flight environments with multiple obstacles demand high unmanned aerial vehicle (UAV) performance, while lightweight quadrotors are particularly vulnerable to wind disturbances. Consequently, developing a high-fidelity dynamic model that accounts for wind disturbances is crucial for understanding and c...
Le Zhou, Chen Xu, Xiaojiang Gu et al.· Journal of Aerospace Enginee...· 0 citations
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