Results 11 to 20 of about 5,748 (245)
Design of Variable Amplitude Flapping Wing Aircraft and Realization of Multiple Flight Modes
Jixie chuandong, 2021 Aiming at the problems of the single flight mode and inflexible flight attitude，a variable amplitude flapping wing aircraft is designed. By adjusting the flapping amplitude， the flapping wing motion attitude and flight mode can be switched.
Yueyang Hou +4 more
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Stability and Sensitivity Analysis of Bird Flapping Flight [PDF]
Journal of Nonlinear Science, 2021 This paper investigates stability analysis of flapping flight. Due to time-varying aerodynamic forces, such systems do not display fixed points of equilibrium. The problem is therefore approached via a limit cycle analysis based on Floquet theory. Stability is assessed from the eigenvalues of the Jacobian matrix associated to the limit cycle, also ...
Gianmarco Ducci +4 more
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Animal Flight Dynamics II. Longitudinal Stability in Flapping Flight
Journal of Theoretical Biology, 2002 Stability is essential to flying and is usually assumed to be especially problematic in flapping flight. If so, problems of stability may have presented a particular hurdle to the evolution of flapping flight. In spite of this, the stability of flapping flight has never been properly analysed.
Taylor, G, Thomas, A
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Flight Performance Estimation of Bionic Flapping-Wing Micro Air Vehicle [PDF]
Xibei Gongye Daxue Xuebao, 2018 Bionic flapping-wing micro air vehicle(MAV) has received worldwide attention.The flight performance calculation is an important step in the conceptual design.The differences in performance estimation methods between the flapping-wing and conventional ...
doaj +2 more sources
Animalopters - towards a new dimension of flight mechanics [PDF]
Transport, 2002 Recently, it has been recognised that flapping wing propulsion can be more efficient than conventional propellers if applied to very small-scale vehicles, so-called MAVs (micro air vehicles).
J. A. Goszczynski +3 more
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On Flapping Flight of Aeroplanes [PDF]
Aeronautical journal (London, England : 1897), 1899 It has been long known, principally through experiments on soaring, that a large, if not by far the largest, part of the supporting force obtained by birds in regular flight, is probably furnished by upward air pressure on their wings, regarded as planes moving horizontally, with their surfaces slightly inclined to the direction of motion.Langley's ...
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Non-linear unsteady aerodynamic model for insect-like flapping wings in the hover. Part 1: Methodology and analysis [PDF]
, 2006 The essence of this two-part paper is the analytical, aerodynamic modelling of insect-like flapping wings in the hover for microair vehicle applications.
Knowles, Kevin +2 more
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IEEE Access, 2018 Flight performance calculation is an important part of the micro flapping wing air vehicle design. It is used to verify whether the air vehicle design meets the performance requirements so as to make targeted improvements to the design.
Jianlin Xuan, Z. Yang, P. Nian, D. Ma
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Coupled piezoelectric fans with two degree of freedom motion for the application of flapping wing micro aerial vehicles [PDF]
, 2008 Piezoelectric fans consisting of a piezoelectric layer and an elastic metal layer were prepared by epoxy bonding and a coupled flexible wing was formed by a pair of carbon fibre reinforced plastic wing spars and polymer skin attached to two ...
Lal Kummari, K. +5 more
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A Review of Flapping Mechanisms for Avian-Inspired Flapping-Wing Air Vehicles
Aerospace, 2023 This study focuses on the flapping mechanisms found in recently developed biometric flapping-wing air vehicles (FWAVs). FWAVs mimic the flight characteristics of flying animals, providing advantages such as maneuverability, inconspicuousness, and ...
Jae-Hung Han +4 more
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