Fluid–structure interaction in piezoelectric energy harvesting of a membrane wing

2021 ◽  
Vol 33 (6) ◽  
pp. 063610
Author(s):  
Guangjing Huang ◽  
Yingjie Xia ◽  
Yuting Dai ◽  
Chao Yang ◽  
You Wu
Keyword(s):  
Energy Harvesting ◽  
Fluid Structure Interaction ◽  
Piezoelectric Energy Harvesting ◽  
Fluid Structure ◽  
Structure Interaction ◽  
Piezoelectric Energy ◽  
Membrane Wing

scholarly journals Modeling and Efficiency Analysis of a Piezoelectric Energy Harvester Based on the Flow Induced Vibration of a Piezoelectric Composite Pipe

Sensors ◽  
2018 ◽  
Vol 18 (12) ◽  
pp. 4277 ◽  
Author(s):  
Maoying Zhou ◽  
Mohannad Al-Furjan ◽  
Ban Wang
Keyword(s):  
Energy Harvesting ◽  
Energy Harvester ◽  
Fluid Structure Interaction ◽  
Piezoelectric Composite ◽  
Flow Induced Vibration ◽  
Fluid Structure ◽  
Structure Interaction ◽  
Piezoelectric Energy ◽  
Harvesting Efficiency ◽  
Energy Harvesting Efficiency

This paper proposes and investigates a piezoelectric energy harvesting system based on the flow induced vibration of a piezoelectric composite cantilever pipe. Dynamic equations for the proposed energy harvester are derived considering the fluid-structure interaction and piezoelectric coupling vibration. Linear global stability analysis of the fluid-solid-electric coupled system is done using the numerical continuation method to find the neutrally stable vibration mode of the system. A measure of the energy harvesting efficiency of the system is proposed and analyzed. A series of simulations are conducted to throw light upon the influences of mass ratio, dimensionless electromechanical coupling, and dimensionless connected resistance upon the critical reduced velocity and the normalized energy harvesting efficiency. The results provide useful guidelines for the practical design of piezoelectric energy harvester based on fluid structure interaction and indicate some future topics to be investigated to optimize the device performance.

Fluid-Structural Dynamic Characterization of a Membrane Wing in a Gust Environment

2020 ◽  
Author(s):  
Mohammad Khairul Habib Pulok ◽  
Uttam K. Chakravarty
Keyword(s):  
Unmanned Aerial Vehicles ◽  
Fluid Structure Interaction ◽  
Interaction Model ◽  
Numerical Results ◽  
Fluid Structure ◽  
Structure Interaction ◽  
Aerial Vehicles ◽  
Von Karman ◽  
Membrane Wing ◽  
Lift And Drag

Abstract Unmanned aerial vehicles are applicable in a lot of areas including weather condition monitoring, surveillance, and reconnaissance. They need further development in design, especially, for the turbulent atmospheric conditions. Smart materials are considered for wing manufacturing for gust alleviation whereas membranes are found suitable for such applications, and therefore, analyzing aerodynamic properties of the membrane is important. Wind gusts create an abrupt atmospheric situation for unmanned aerial vehicles during the flight. In this study, a continuous gust profile and two types of stochastic gust models, i.e., Dryden gust model and von Karman gust model are developed to study the effects of gust load on a flexible membrane wing. One of the promising ways to reduce the effects of the gust is by using an electroactive membrane wing. A fluid-structure-interaction model by coupling the finite element model of the membrane and computational fluid dynamics model of the surrounding airflow is generated. Aerodynamic coefficients are calculated from the forces found from the numerical results for different gust velocities. A wind-tunnel experimental setup is used to investigate the aerodynamic responses of the membrane wing. Dryden gust model and von Karman gust model are found comparable with a minimum variation of magnitude in the gust velocity profile. The coefficients of lift and drag fluctuate significantly with the change in velocity due to wind gust. A validation of the fluid-structure-interaction model is performed by comparing the numerical results for the lift and drag coefficients with the experimental results. The outcome of this study contributes to better understand the aerodynamics and maneuverability of unmanned aerial vehicles in the gust environment.

Fluid–Structure Interaction Simulation on Energy Harvesting From Vortical Flows by a Passive Heaving Foil

2017 ◽  
Vol 140 (1) ◽  
Author(s):  
Zhenglun Alan Wei ◽  
Zhongquan Charlie Zheng
Keyword(s):  
Energy Harvesting ◽  
Fluid Structure Interaction ◽  
Time Integration ◽  
Immersed Boundary ◽  
Fluid Structure ◽  
Periodic Response ◽  
Structure Interaction ◽  
First Order ◽  
Interaction Simulation ◽  
Ib Method

This study investigates energy harvesting of a two-dimensional foil in the wake downstream of a cylinder. The foil is passively mobile in the transverse direction. An immersed boundary (IB) method with a fluid–structure interaction (FSI) model is validated and employed to carry out the numerical simulation. For improving numerical stability, this study incorporates a modified low-storage first-order Runge–Kutta scheme for time integration and demonstrates the performance of this temporal scheme on reducing spurious pressure oscillations of the IB method. The simulation shows the foil emerged in a vortical wake achieves better energy harvesting performance than that in a uniform flow. The types of the dynamic response of the energy harvester are identified, and the periodic response is desired for optimal energy harvesting performance. Last, the properties of vortical wakes are found to be of pivotal importance in obtaining this desired periodic response.

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