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Akademický článek

Path planning algorithm and its simulation validation based on vector field

Autor: JIANG Nan, XU Jinfa

Publikováno v: Hangkong gongcheng jinzhan, Vol 15, Iss 4, Pp 39-49 (2024)

The methods of waypoint setting and point curve fitting which are not complex was usually adopted in the path planning of UAV, and the expected heading angle is given in segments. The expected heading angle does not automatically modified with change

Externí odkaz: https://doaj.org/article/3eb9c40dc8fb4b128b166aa6bf506557

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Parametric study on the water impacting of a free-falling symmetric wedge based on the extended von Karman's momentum theory

Autor: Lu, Yujin, Del Buono, Alessandro, Xiao, Tianhang, Iafrati, Alessandro, Xu, Jinfa, Deng, Shuanghou, Chen, Jichang

Publikováno v: Ocean Engineering, Volume 271, March 2023

The present study is concerned with the peak acceleration azmax occurring during the water impact of a symmetric wedge. This aspect can be important for design considerations of safe marine vehicles. The water-entry problem is firstly studied numeric

Externí odkaz: http://arxiv.org/abs/2211.12290

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On applicability of von Karman's momentum theory in predicting the water entry load of V-shaped structures with varying initial velocity

Autor: Lu, Yujin, Del Buono, Alessandro, Xiao, Tianhang, Iafrati, Alessandro, Deng, Shuanghou, Xu, Jinfa

Publikováno v: Ocean Engineering, Volume 262, October 2022

The water landing of an amphibious aircraft is a complicated problem that can lead to uncomfortable riding situation and structural damage due to large vertical accelerations and the consequent dynamic responses. The problem herein is investigated by

Externí odkaz: http://arxiv.org/abs/2207.10413

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Akademický článek

Study on modular design method of tiltable rotor system for quad tilt-rotor unmanned aircraft

Autor: SUN Xiaobin, XU Jinfa

Publikováno v: Hangkong gongcheng jinzhan, Vol 14, Iss 4, Pp 58-67 (2023)

The tilt-rotor unmanned aerial vehicle has the obvious trend of multi-rotor development, and modular design of tiltable rotor system is helpful to integrate assembly and can reduce design duplication. In this paper, a quad tilt-rotor unmanned aerial

Externí odkaz: https://doaj.org/article/e26caff46018472b882444106d83dc51

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