Results 11 to 20 of about 2,641 (299)
Modeling of a Novel Coaxial Ducted Fan Aerial Robot Combined with Corner Environment by Using Artificial Neural Network. [PDF]
Sensors (Basel), 2020 Ai T, Xu B, Xiang C, Fan W, Zhang Y.
europepmc +3 more sources
Applied Sciences (Switzerland), 2015 The aerodynamic parameters of ducted fan micro aerial vehicles (MAVs) are difficult and expensive to precisely measure and are, therefore, not available in most cases. Furthermore, the actuator dynamics with risks of potentially destabilizing the overall
Shouzhao Sheng, Chenwu Sun
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Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2018 When developing counter-rotating fans for advanced aircraft engines with ducted blades (CRTF), it is very important to ensure high acoustic and aerodynamic characteristics. To provide investigations of aerodynamic and acoustic performance of the original
V. I. Mileshin +3 more
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On dynamic characteristics and stability analysis of the ducted fan unmanned aerial vehicles
International Journal of Advanced Robotic Systems, 2019 This article researches the improvement of dynamics stability of the ducted fan unmanned aerial vehicles by optimizing its mechanical–structure parameters.
Dong Tian
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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
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Matching fan and motor design parameters in electric ducted fans
Journal of the Global Power and Propulsion SocietyElectric propulsion systems are gaining more research interest as a way to achieve zero-emission aviation. However, scaling up such systems for larger civil aircraft flying at higher flight speeds poses challenges. One major issue is aligning the performance of electric motors with the aerodynamic design of the fan. This paper discusses matching of the
Viacheslav A. Sedunin +2 more
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A Study on Hover Performance of Ducted Fans for an Unmanned VTOL Aircraft
International Journal of Aerospace Engineering, 2022 In this study, ground tests and numerical analysis were performed to verify the hover performance of the second ducted fan model designed by this research team.
Young Jae Choi +2 more
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Xibei Gongye Daxue Xuebao, 2021 Focusing on the aerodynamic characteristics of the blended wing body (BWB) aircraft with boundary layer ingestion(BLI) distributed propulsion system; the influences of propulsion system parameters under the condition of cruise and takeoff are studied ...
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Noise-Source Identification for Ducted Fan Systems [PDF]
AIAA Journal, 2007 Coherence-based source analysis techniques can be used to identify the contribution of combustion noise in the exhaust of a jet engine and to hence enable the design of noise-reduction devices. However, when the combustion noise propagates in a nonlinear fashion, the identified contribution using ordinary coherence methods will be inaccurate.
BENNETT, GARETH, FITZPATRICK, JOHN AIDAN
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Effect of inlet distortion with crosswind on aircraft-engine intake aerodynamic performance
Nihon Kikai Gakkai ronbunshu, 2022 This paper describes an experimental study on inlet distortion in the flow ingested to an intake of a ducted fan. Recent high bypass ratio engines tend to shorten the nacelle length for better fuel consumption.
Hiroki NARUSE +7 more
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