A double-beam piezo-magneto-elastic wind energy harvester for improving the galloping-based energy harvesting

Yang, Kai; Wang, Junlei; Yurchenko, Daniil

doi:10.1063/1.5126476

Cited by 191 publications

(63 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1 The advantage of energy harvesting lies in its sustainability and beneficial avoidance of battery replacement. 2,3 Harvesting environmental vibrations can be generally divided into two categories, that is, the preexisting base excitations resulting from the motion of machinery, structures, or human movements 4,5 and the flow-induced vibrations due to aeroelastic instabilities, such as vortexinduced vibration (VIV), 6 galloping, 7,8 flutter, 9,10 and buffeting, 11 or their synergetic effect. 12,13 Wind energy is a steady and pervasive power source in the environment.…”

Section: Resultsmentioning

confidence: 99%

Equivalent circuit representation of a vortex‐induced vibration‐based energy harvester using a semi‐empirical lumped parameter approach

et al. 2020

Self Cite

View full text Add to dashboard Cite

Summary Small‐scale wind energy harvesting from vortex‐induced vibrations (VIV) has been introduced in recent years as a renewable power source for microelectronics and wireless sensors. Previous studies have focused on modeling and optimizing the VIV‐based piezoelectric energy harvester (VIVPEH) structures and simplified the complicated interface circuits as pure resistors with an alternating current (AC) output. In practice, an AC output is required to be transformed into a direct current (DC) followed by further regulations before being used for real applications. Incorporating the rectification and regulation, traditional theoretical and numerical models will become extremely cumbersome and even impossible. To address this issue, this work proposes an equivalent circuit model (ECM) for a typical VIVPEH. The Scanlan‐Ehsan aerodynamic force model is employed to describe the fluid‐structure interaction. Wind tunnel experiments are carried out to validate the derived model. The performances of the VIVPEH with AC and DC interface circuits are subsequently analyzed and compared to understand the influences of these circuits on the operational wind speed bandwidth, power output, vibration amplitude, and electrical damping.

show abstract

Section: Resultsmentioning

confidence: 99%

Equivalent circuit representation of a vortex‐induced vibration‐based energy harvester using a semi‐empirical lumped parameter approach

et al. 2020

Self Cite

View full text Add to dashboard Cite

show abstract

“…There are many mechanisms for energy transformation i.e., electromagnetic [ 4 ], electromechanical [ 5 , 6 ], and fluid-structure interaction systems [ 7 ]. Among these mechanisms, fluid-structure interaction (FSI) systems play a vital role because of its voltage-dependent actuation [ 8 , 9 , 10 ]. Many researchers are working on such techniques to drive electronic circuits in electromechanical systems [ 11 , 12 ].…”

Section: Introductionmentioning

confidence: 99%

Performance Evaluation of a Piezoelectric Energy Harvester Based on Flag-Flutter

et al. 2020

View full text Add to dashboard Cite

In the last few decades, piezoelectric (PZT) materials have played a vital role in the aerospace industry because of their energy harvesting capability. PZT energy harvesters (PEH) absorb the energy from an operational environment and can transform it into useful energy to drive nano/micro-electronic components. In this research work, a PEH based on the flag-flutter mechanism is presented. This mechanism is based on fluid-structure interaction (FSI). The flag is subjected to the axial airflow in the subsonic wind tunnel. The performance evaluation of the harvester and aeroelastic analysis is investigated numerically and experimentally. A novel solution is presented to extract energy from Limit Cycle Oscillations (LCOs) phenomenon by means of PZT transduction. The PZT patch absorbs the flow-induced structural vibrations and transforms it into electrical energy. Furthermore, the optimal resistance and length of the flag is predicted to maximize the energy harvesting. Different configurations of flag i.e., with Aluminium (Al) patch and PZT patch for flutter mode vibration mode are studied numerically and experimentally. The bifurcation diagram is constructed for the experimental campaign for the flutter instability of a cantilevered flag in subsonic wind-tunnel. Moreover, the flutter boundary conditions are analysed for reduced critical velocity and frequency. The designed PZT energy harvester via flag-flutter mechanism is suitable for energy harvesting in aerospace engineering applications to drive wireless sensors. The maximum output power that can be generated from the designed harvester is 6.72 mW and the optimal resistance is predicted to be 0.33 MΩ.

show abstract

“…[8][9][10] On the other hand, various performance enhancement methods for vibration energy harvesting have been extensively explored, including using multimodal techniques, nonlinear mechanisms, and active tuning strategies. [11][12][13][14][15][16][17] Fluid flow ubiquitously exists in the environment and could be converted to structural vibrations. 18,19 Based on the mechanism of flow-induced vibration, researchers have proposed various aeroelastic PEHs.…”

Section: Introductionmentioning

confidence: 99%

Bluff body with built‐in piezoelectric cantilever for flow‐induced energy harvesting

Zhang

Wang

2020

Int J Energy Res

Self Cite

View full text Add to dashboard Cite

Summary This paper investigates a flow‐induced vibration energy harvester comprising a piezoelectric beam (piezo‐beam) installed within a hollow circular cylinder. Under the flow excitation, the energy‐harvesting system including the cylinder and the piezo‐beam vibrates and generates electricity. A lumped parametric model incorporating the fluid‐structure interaction (FSI) is developed to evaluate the performance of the proposed energy harvester. Based on the theoretical analysis, several guidelines on the design and optimization of the proposed energy harvester are provided. Subsequently, a numerical model is used to simulate the FSI between the proposed system and the external flow field. Finally, a physical prototype is fabricated and an experiment is conducted to test the actual performance for validation. The theoretical analysis results are verified by the numerical and experimental results.

show abstract

A double-beam piezo-magneto-elastic wind energy harvester for improving the galloping-based energy harvesting

Cited by 191 publications

References 42 publications

Equivalent circuit representation of a vortex‐induced vibration‐based energy harvester using a semi‐empirical lumped parameter approach

Equivalent circuit representation of a vortex‐induced vibration‐based energy harvester using a semi‐empirical lumped parameter approach

Performance Evaluation of a Piezoelectric Energy Harvester Based on Flag-Flutter

Bluff body with built‐in piezoelectric cantilever for flow‐induced energy harvesting

Contact Info

Product

Resources

About