flapping flight
The moment of inertia of bird wings and the inertial power requirement for flapping flight
... the moment of inertia (Table 3) will be largely cancelled by the negative allometry of wingbeat amplitude (Scholey, 1983). Elastic storage of kinetic energy may strongly decrease the inertial power loss during ...
10
BATMAV - A Bio-Inspired Micro-Aerial Vehicle for Flapping Flight.
... mimic flapping flight observed in nature as closely as ...engineering flapping flight ...bat flight, especially the Denavit-Hartenberg formalism to ease the coordinate transformation ...
146
The aerodynamic effects of wing rotation and a revised quasi steady model of flapping flight
... In this study, we attempt to characterize the effects of wing rotation on aerodynamic force generation under conditions that are appropriate for analysis of insect flight. At constant translational wing velocity, ...
10
The influence of wing–wake interactions on the production of aerodynamic forces in flapping flight
... of flapping flight (translation, rotation, wake capture and the volume-independent component of acceleration reaction) are embodied within the first term of ...a flapping wing, the growth and decay ...
16
Aerodynamic efficiency of flapping flight: analysis of a two stroke model
... in flapping flight, as extensively reviewed (Weis-Fogh and Jensen, 1956; Ellington, 1984; Dickinson, 1996; Sane, 2003; Lehmann, 2004; Wang, ...of flapping flight compare to that of a fixed ...
5
BATMAV: A Biologically-Inspired Micro-Air Vehicle for Flapping Flight - Kinematic Modeling
... The main objective of the BATMAV project is the development of a biologically inspired bat- like Micro-Aerial Vehicle with flexible and foldable wings, capable of flapping flight. This phase of the project ...
121
The importance of leading edge vortices under simplified flapping flight conditions at the size scale of birds
... animal flight have attained a new level of detail over the last decade, due to a tremendous progress in measurement techniques and heightened interest in flapping flight among the academic, military ...
11
A COMPUTATIONAL MODEL FOR ESTIMATING THE MECHANICS OF HORIZONTAL FLAPPING FLIGHT IN BATS
... that flapping flight need not be accompanied by the shedding of spanwise vortices from the trailing edge of a ...forward flight and that bat wings possess sufficient passive and active control to ...
26
Damping in flapping flight and its implications for manoeuvring, scaling and evolution
... and flapping kinematics of insects, birds and ...adequate flight stability or may be a by-product of the need for animals to produce sufficient aerodynamic forces to support their weight in low speed ...
9
A two dimensional computational study on the fluid–structure interaction cause of wing pitch changes in dipteran flapping flight
... of flapping flight), and (b) the flow- induced vibration of an elastic cantilever plate situated in the wake of a rectangular prism in the uniform flow ...
10
Petiolate wings: effects on the leading-edge vortex in flapping flight
... insect-like flapping wings in experiments by Maxworthy [3], who observed its formation on a mechanical model and also reported the presence of a span- wise flow in the LEV core towards the ...forward flight ...
13
Dynamic pressure maps for wings and tails of pigeons in slow, flapping flight, and their energetic implications
... The value of muscle-mass specific power of 273·W·kg –1 (for the pectoralis) appears physiologically reasonable, but is higher than the value of 207·W·kg –1 recently quantified for the pectoralis of White Carneau pigeons ...
15
BATMAV: A Biologically-Inspired Micro Air Vehicle for Flapping Flight - Design and Fabrication of Skeleton Structure and Wing Membrane.
... Always a concern with such thin materials is durability. Smaller bats can travel at speeds between 20 and 30mph at peak and see flapping frequencies on the order of 10Hz. If a material does not return to a ...
74
Aerodynamics of Flapping Flight with Application to Insects
... The absolute magnitude of the total force on the wing element, integrated a m i averaged, will give a lower bound to the force coefficient for the average total force, The power, the lif[r] ...
25
Aerodynamics, kinematics, and energetics of horizontal flapping flight in the long eared bat Plecotus auritus
... The purpose of this investigation of Plecotus auritus is: 1 to describe the kinematics during horizontal flight; 2 to estimate the forces elicited by the wings during various phases of t[r] ...
40
Flapping Flight of the Andean Condor in Nature
... I used adjusted mean values of V, Table 5 to secure estimates of 33 W/kg wing muscle for the condor and 17 for the turkey vulture as the minimum power output necessary for sustained flig[r] ...
16
The Wake of a Kestrel (Falco Tinnunculus) in Flapping Flight
... Wing beat kinematics and wake structure The circulation measurements reported above support the notion that the wake of a flapping kestrel is composed of a continuous vortex pair of cons[r] ...
20
Indoor Flight Experiments with Trained Kestrels: II The Effect of Added Weight on Flapping Flight Kinematics
... The harmonic functions during one period T of the displacements, velocities and accelerations of the beak solid line, the tip of the tail dashed line and the right wing tip broken line o[r] ...
16
Shape, flapping and flexion: wing and fin design for forward flight
... of flapping flight such as unsteady fluid dynamics and wing or fin ...forward flapping flight and examine the effects of wing/fin morphology and movements on thrust generation and ...
13
Efficiency of Lift Production in Flapping and Gliding Flight of Swifts
... gliding flight has a detrimental effect on the downwash distribution and consequently the span efficiency ...its flight in most of the recorded gliding ...and flapping flight ...free ...
7