Results 11 to 20 of about 6,315 (255)

Local deformation and stiffness distribution in fly wings [PDF]

open access: yesBiology Open, 2019
Mechanical properties of insect wings are essential for insect flight aerodynamics. During wing flapping, wings may undergo tremendous deformations, depending on the wings’ spatial stiffness distribution.
Henja-Niniane Wehmann   +4 more
doaj   +3 more sources

Structural dynamics and neural representation of wing deformation. [PDF]

open access: yesProc Natl Acad Sci U S A
Locomotor control is facilitated by mechanosensory inputs that report how the body interacts with a physical medium. Effective representation of compliant wing deformations is particularly challenging due to the many degrees of freedom. Structural configurations can constrain the stimulus space, and strategic placement of sensors can simplify ...
Yarger AM   +6 more
europepmc   +4 more sources

The spatiotemporal richness of hummingbird wing deformations

open access: yesJournal of Experimental Biology, 2023
ABSTRACT Animals exhibit an abundant diversity of forms, and this diversity is even more evident when considering animals that can change shape on demand. The evolution of flexibility contributes to aspects of performance from propulsive efficiency to environmental navigation.
Dimitri A. Skandalis   +3 more
openaire   +2 more sources

Systematic characterization of wing mechanosensors that monitor airflow and wing deformations

open access: yesiScience, 2022
Animal wings deform during flight in ways that can enhance lift, facilitate flight control, and mitigate damage. Monitoring the structural and aerodynamic state of the wing is challenging because deformations are passive, and the flow fields are unsteady; it requires distributed mechanosensors that respond to local airflow and strain on the wing ...
Joseph Fabian   +5 more
openaire   +2 more sources

In-flight wing deformation measurements on a glider [PDF]

open access: yesThe Aeronautical Journal, 2016
ABSTRACTFlight testing is both vital for collecting data for aeronautic research and at the same time fascinating for its contributors. Taking a glider as a versatile test bed example, this paper presents a transnational measurement campaign within the framework of a collaborative project funded by the European Commission.
Bakunowicz, Jerzy, Meyer, Ralf
openaire   +2 more sources

Measurement of shape and deformation of insect wing [PDF]

open access: yesReview of Scientific Instruments, 2018
To measure the shape and deformation of an insect wing, a scanning setup adopting laser triangulation and image matching was developed. Only one industry camera with two light sources was employed to scan the transparent insect wings. 3D shape and point to point full field deformation of the wings could be obtained even when the wingspan is less than 3
Duo, Yin   +3 more
openaire   +2 more sources

A Comparison of Deformed Wing Virus in Deformed and Asymptomatic Honey Bees [PDF]

open access: yesInsects, 2017
Deformed wing virus (DWV) in association with Varroa destructor is currently attributed to being responsible for colony collapse in the western honey bee (Apis mellifera). The appearance of deformed individuals within an infested colony has long been associated with colony losses.
Laura Brettell   +6 more
openaire   +7 more sources

Effects of deformation and vibration characteristics of wings on flapping flight

open access: yesMechanical Engineering Journal, 2015
The dragonfly wing is passively deformed under flapping and has the strength to withstand high flapping frequency simultaneously. These characteristics of deformation and vibration of the wing are important for flapping flight.
Hisayoshi NAKA, Hiromu HASHIMOTO
doaj   +1 more source

Fluid-structure interaction enhances the aerodynamic performance of flapping wings: a computational study

open access: yesJournal of Biomechanical Science and Engineering, 2018
Insect wings change its shape passively by the aerodynamic and inertial forces when flapping, which can greatly affect its aerodynamic performances. In order to confirm the importance of the fluid-structure interaction in flapping wing aerodynamics, we ...
Toshiyuki NAKATA, Ryusuke NODA, Hao LIU
doaj   +1 more source

Deformable wing kinematics in free-flying hoverflies [PDF]

open access: yesJournal of The Royal Society Interface, 2009
Here, we present a detailed analysis of the deforming wing kinematics of free-flying hoverflies (Eristalis tenax, Linnaeus) during hovering flight. We used four high-speed digital video cameras to reconstruct the motion of approximately 22 points on each wing using photogrammetric techniques.
S. M. Walker   +2 more
openaire   +3 more sources

Home - About - Disclaimer - Privacy