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Analysis of wing in ground-craft water landing
 
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Faculty of Mechatronics, Armament and Aerospace, Military University of Technology, ul. Sylwester Kaliski 2, 00-908 Warsaw, Poland
 
These authors had equal contribution to this work
 
 
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Michał Jędrak   

Faculty of Mechatronics, Armament and Aerospace, Military University of Technology, ul. Sylwester Kaliski 2, 00-908 Warsaw, Poland
 
 
Adv. Sci. Technol. Res. J. 2025; 19(3):144-157
 
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ABSTRACT
Unmanned aerial platforms, along with surface platforms, can be elements of rapid response force systems at sea. The USV-UAV-WIG (Unmanned Surface Vehicle, Unmanned Arial Vehicle, Wing in Ground Effect) platform is a type of vehicle that combines the features of an aircraft and a surface vehicle. In its operational range, it moves using the so-called ground effect. This phenomenon consists in increasing the lift of an aircraft moving at a small height above the ground or water (the height is assumed to be half the wing span). To consider this problem, we first prepared a computational task for the impact of a ball, box, and cylinder-shaped bodies on water. The calculations were carried out using the finite element method using the capabilities of the LS-DYNA environment. Computer simulations of impact of the those shaped bodies on water were experimentally verified using the so-called high-speed camera and the image analysis system. Second, analytical calculations and numerical simulations of the launch of an example USV-UAV-WIG structure were carried out. For the purposes of the analyses, a numerical model of the structure and a model of the water-solid interaction were prepared. On the basis of the results of the calculations obtained, the loads occurring during landing of the vehicle were defined.
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