Results 21 to 30 of about 159,512 (410)
Performance Evaluation of a Piezoelectric Energy Harvester Based on Flag-Flutter
Micromachines, 2020 In the last few decades, piezoelectric (PZT) materials have played a vital role in the aerospace industry because of their energy harvesting capability.
H. Elahi +6 more
semanticscholar +1 more source
Current Biology, 2005 For many conservationists, butterflies are some of the key species that can indicate the quality of an environment not only for themselves but for many other, often less visible, species. Some of their specific needs are often well known, but movements around their habitat and important factors within it are less understood. To help address this issue,
openaire +2 more sources
Buildings, 2022 In order to study the relationship between an aerostatic three-component coefficient (ATCC) and bridge flutter and to quickly evaluate the flutter performance of bridges, we proposed a method based on the empirical formula of the ATCC.
Hui Gao +4 more
doaj +1 more source
Feedback-Induced Flutter Instability of a Flexible Beam in Fluid Flow [PDF]
Journal of Sound and Vibration, 547 (2023) 117488, 2021 A pinned-free beam in axial fluid flow, subjected to feedback-based actuation at the pinned end, is investigated. The actuation may be a moment or a prescribed angle and it is proportional to the state (curvature, slope, or displacement) of the beam at some point along its length.
arxiv +1 more source
Current Biology, 2003 The fluttering flight of butterflies is characteristic of these insects but belies the fact that most species are competent or strong fliers with several members carrying out spectacular migrations. However, new work by a team led by Angel Viloria based at the Natural History Museum in London, report in the Proceedings of the Royal Society published ...
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Robust Modal Damping Control for Active Flutter Suppression
Journal of Guidance Control and Dynamics, 2020 Flutter is an unstable oscillation caused by the interaction of aerodynamics and structural dynamics.
J. Theis, H. Pfifer, P. Seiler
semanticscholar +1 more source
Pseudospectral continuation for aeroelastic stability analysis [PDF]
ASME Journal of Vibration and Acoustics, 144(4), 2022, 2022 This technical note is concerned with aeroelastic flutter problems: the analysis of aeroelastic systems undergoing airspeed-dependent dynamic instability. Existing continuation methods for parametric stability analysis are based on marching along an airspeed parameter until the flutter point is found - an approach which may waste computational effort ...
arxiv +1 more source
Current Biology, 2003 AbstractReports last month of the first cloned horse by researchers in Cremona, Italy – home of some of the finest violin makers – put the racing community into a spin, but they have little to fear from this experiment, writes Michael Gross.
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Flutter speed estimation using presented differential quadrature method formulation
Engineering Applications of Computational Fluid Mechanics, 2019 In this paper the flutter behavior of a typical wing is investigated. The study is performed by presented Deferential Quadrature Method (DQM). The aerodynamic part adopted Wagner functions to model subsonic regime.
Mohammad Ghalandari +3 more
semanticscholar +1 more source
Suppression of Bridge Flutter Using Suction Control
Advances in Civil Engineering, 2021 To verify the effectiveness of the suction-based method for improving flutter stability of long-span bridges, the forced vibration experiments for extracting the flutter derivatives of a section model with and without suction were performed, and the ...
Shibo Tao
doaj +1 more source