Results 101 to 110 of about 4,154,170 (239)
DronesDucted fan flying robots with robotic arms can perform physical interaction tasks in complex environments such as indoors. However, the coupling effects between the aerial platform, the robotic arm, and physical environment pose significant challenges ...
Yibo Zhang +6 more
doaj +1 more source
Thrust Vectoring Control for Heavy UAVs, Employing a Redundant Communication System. [PDF]
Sensors (Basel), 2023 Ale Isaac MS +4 more
europepmc +1 more source
Composite Axial Flow Propulsor for Small Aircraft
Acta Polytechnica, 2005 This work focuses on the design of an axial flow ducted fan driven by a reciprocating engine. The solution minimizes the turbulization of the flow around the aircraft. The fan has a rotor - stator configuration. Due to the need for low weight of the fan,
R. Poul, D. Hanus
doaj
Development of an Ultralight with a Ducted Fan
Acta Polytechnica, 2012 This paper introduces the UL-39 project, an ultralight aircraft with a ducted fan, and some of the problems that have arisen in the course of its development. Several problems with the design of a non-traditional aircraft of this kind are mentioned, e.g.
Jiří Brabec, Martin Helmich
doaj
Levitated Duct Fan (LDF) Aircraft Auxiliary Generator [PDF]
This generator concept includes a novel stator and rotor architecture made from composite material with blades attached to the outer rotating shell of a ducted fan drum rotor, a non-contact support system between the stator and rotor using magnetic ...
Eichenberg, Dennis J. +3 more
core +1 more source
Experimental comparison between a counter-rotating axial-flow fan and a conventional rotor-stator stage [PDF]
, 2013 Based on the requirement of energy consumption level and weight and dimension restriction, compact axial machines are highly demanded in many industrial fields.
BAKIR, Farid +2 more
core +3 more sources
Duct fanned shielding design for quadrotors
, 2016 The master thesis work involved the design implementation of a duct fanned shielding for Quadrotors. This included the investigation of various settings for duct shielding and to identify the best possible option to safe guard propellers of the quadrotor. In addition, the work focused on improving the aerodynamic efficiency, reducing the mass of flight
openaire +1 more source
Far-field noise and internal modes from a ducted propeller at simulated aircraft takeoff conditions [PDF]
The ducted propeller offers structural and acoustic benefits typical of conventional turbofan engines while retaining much of the aeroacoustic benefits of the unducted propeller.
Bock, Lawrence A. +3 more
core +1 more source
Experimental Investigation of a Morphing Nacelle Ducted Fan [PDF]
The application of Circulation Control to the nacelle of a shrouded fan is proposed as a means to enhance off-design performance of the shrouded fan. Typically, a fixed geometry shroud is efficient at a single operating condition.
Kondor, Shayne A., Moore, Mark
core +1 more source