Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Ali H. Alhadidi"'
Publikováno v:
Nonlinear Dynamics. 110:3001-3014
Publikováno v:
Nonlinear Dynamics. 103:2183-2196
The lift force acting on a purely translational galloping oscillator can be well approximated by using the quasi-steady theory, which states that the flow around a galloping body in motion is very similar to the known flow around a fixed body provide
Publikováno v:
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences. 379
Galloping is an aeroelastic instability which incites oscillatory motion of elastic structures when subjected to an incident flow. Because galloping is often detrimental to the integrity of the structure, many research studies have focused on investi
Publikováno v:
Physica D: Nonlinear Phenomena. 337:30-42
Fluid–structure coupling mechanisms such as wake galloping have been recently utilized to develop scalable flow energy harvesters. Unlike traditional rotary-type generators which are known to suffer serious scalability issues because their efficien
Autor:
Meghashyam Panyam, Jamie Noel, Ali H. Alhadidi, Imran Akhtar, Mohammed F. Daqaq, Amin Bibo, Benjamin Caldwell
Publikováno v:
Journal of Vibration and Acoustics. 141
Emergence of increasingly smaller electromechanical systems with submilli-Watt power consumption led to the development of scalable micropower generators (MPGs) that harness ambient energy to provide electrical power on a very small scale. A flow MPG
Publikováno v:
Applied Physics Letters. 116:263902
Small scale flow energy harvesters are designed to operate at low elevations where surface effects cause significant flow velocity variations. To harness flow energy efficiently in such environments, the harvester must be very sensitive to flow fluct
Publikováno v:
Volume 6: 12th International Conference on Multibody Systems, Nonlinear Dynamics, and Control.
This paper investigates exploiting a bi-stable restoring force to enhance the transduction of wake-galloping energy harvesters in unsteady flows. To that end, a harvester consisting of a piezoelectric cantilever beam augmented with a square-sectioned
Autor:
Mohammed F. Daqaq, Ali H. Alhadidi
Publikováno v:
Volume 2: Integrated System Design and Implementation; Structural Health Monitoring; Bioinspired Smart Materials and Systems; Energy Harvesting.
This paper investigates utilizing a nonlinear (bi-stable) restoring force to enhance the transduction of galloping energy harvesters in turbulent flows. To that end, a harvester consisting of a piezoelectric cantilever beam augmented with a square-se
Publikováno v:
Volume 2: Mechanics and Behavior of Active Materials; Integrated System Design and Implementation; Bioinspired Smart Materials and Systems; Energy Harvesting.
This ppppaper examines the performance of a galloping energy harvester possessing a nonlinear restoring force. To achieve this goal, a flow energy harvester consisting of a piezoelectric cantilever beam augmented with a square-sectioned bluff body at
Autor:
Ali H. Alhadidi, Mohammed F. Daqaq
Publikováno v:
Applied Physics Letters. 109:033904
Linear wake-galloping flow energy harvesters have a narrow frequency bandwidth restricted to the lock-in region, where the vortex shedding frequency is close to the natural frequency of the harvester. As a result, their performance is very sensitive