Results 21 to 30 of about 2,641 (299)
Ducted Fan Flying Object with Normal and Reverse Ducted Fan Units
International Journal of Robotics and Mechatronics, 2014 Recently, UAV such as single / multi rotor helicopter is used in fields of aerial photography and aerial investigation. But rotor blades of UAV thrust device are not covered, and the thrust is generated by high rotational speed. Thus UAV has a high risk of damage. In previous study, we presented inverted pendulum type flying object
Masafumi Miwa, Shinya Marubashi
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Hangkong gongcheng jinzhan, 2018 With the development of aviation aircraft, the research on new aerodynamic configuration design has become the focus of power country in aviation. The actuator disk model applied in ducted fan based on self-developed “TRIsonic Platform”(TRIP 3.0) is ...
Yang Xiaochuan +4 more
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Strength Analysis of a Ducted Axial Fan Blade [PDF]
Problemy Mechatroniki, 2018 This paper presents a numerical strength analysis of a ducted axial fan blade. Ducted axial fans are a large group of fluid-flow machines. The analysis was designed to determine the causes of cyclic failures of a ventilation unit.
Marek ROŚKOWICZ +5 more
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Modeling and control of a novel facade cleaning robot with four-ducted fan drive
International Journal of Advanced Robotic Systems, 2021 With the development of modern cities, the demand for cleaning glass curtain walls in urban skyscrapers is increasing, and therefore, many researches on facade cleaning robots have been carried out in the past few decades.
Xiao-Peng Li, Xin Wang, Bin Feng
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Evaluation of the thrust of a ducted coaxial propfan
Авіаційно-космічна техніка та технологія, 2022 One of the basic requirements for existing and future aircraft engines is high specific power, low specific fuel consumption, and low noise level. The current work evaluates the thrust of a ducted coaxial propfan.
Vjacheslav Usenko +2 more
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International Journal of Aerospace Engineering, 2020 The tail rotor of a helicopter operating under low-speed crosswind undergoes highly complex flow due to the interaction between the main rotor, fuselage, and tail rotor system.
Nahyeon Roh, Sejong Oh, Donghun Park
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Thermal Benefits of a Cooling Guide Vane for an Electrical Machine in an Electric Ducted Fan
Aerospace, 2022 Equipped with a distributed electric propulsion system, eVTOL is the primary vehicle for future urban air mobility. The electrical machine determines the weight of the distributed electric propulsion system, and the cooling capability determines the ...
Xuanyang Hu +5 more
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Safe Reinforcement Learning for Transition Control of Ducted-Fan UAVs
Drones, 2023 Ducted-fan tail-sitter unmanned aerial vehicles (UAVs) provide versatility and unique benefits, attracting significant attention in various applications.
Yanbo Fu, Wenjie Zhao, Liu Liu
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CFD Study of an Annular-Ducted Fan Lift System for VTOL Aircraft
Aerospace, 2015 The present study aimed at assessing a novel annular-ducted fan lift system for VTOL aircraft through computational fluid dynamics (CFD) simulations. The power and lift efficiency of the lift fan system in hover mode, the lift and drag in transition mode,
Yun Jiang, Bo Zhang, Tao Huang
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Proteogenomic characterization of cholangiocarcinoma
Hepatology, EarlyView., 2022 Proteogenomic characterization of cholangiocarcinoma with therapeutic strategies Abstract Background and Aims Cholangiocarcinoma (CCA) is a highly heterogeneous cancer with limited understanding and few effective therapeutic approaches. We aimed at providing a proteogenomic CCA characterization to inform biological processes and treatment ...
Mengjie Deng +18 more
wiley +1 more source