On Efficiency of Two-Degree-of-Freedom Galloping Energy Harvesters with Two Transducers
Source abstract
Abstract
This paper examines the energy efficiency of three variations of the two-degree-of-freedom transverse galloping energy harvester. These variants differ in the number and placement of electromechanical transducers. By utilizing the harmonic balance method, the limit cycles of mathematical models of the devices were determined. Analytical expressions derived from the models were then used to formulate the efficiency of the systems. It was demonstrated that efficiency depends on flow speed and can be comprehensively characterized by the following criteria parameters: peak efficiency, denoting the maximum efficiency of the system, and high-efficiency bandwidth, which describes the range of flow speeds within which the efficiency remains at no less than 90% of peak efficiency. The values of these parameters are heavily reliant on two other parameters: the speed at which the system achieves peak efficiency, referred to as the nominal speed, and also the flow speed at which the system undergoes Hopf bifurcation, namely the critical speed. Comparative analysis revealed that only the device equipped with two electromechanical transducers can potentially outperform a simple one-degree-of-freedom system. For selected parameters, this gain reached nearly 10%.
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Research context
OpenAlex topics: Innovative Energy Harvesting Technologies · Energy Harvesting in Wireless Networks · Wireless Power Transfer Systems
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Institute of Applied Mechanics, Faculty of Mechanical Engineering, Poznan University of Technology, 60-965 Poznań, Poland
Funding
Polish Ministry of Higher Education
References (29)
Show source-provided references
1. Internet of Things is a revolutionary approach for future technology enhancement: A review10.1186/s40537-019-0268-2 ↗
2. (2024, May 01). Bladeless Vortex Official Site. Available online: https://vortexbladeless.com.
3. Den Hartog, J.P. (1956). Mechanical Vibrations, McGraw-Hill. [4th ed.].
4. Energy harvesting from transverse galloping10.1016/j.jsv.2010.01.028 ↗
5. Ludlam, D.V. (2017). Optimal Energy Harvesting Form Vortex Induced Vibration and Transverse Galloping Vibrations. [Ph.D. Thesis, Universidad Politécnica de Madrid].
6. Transverse galloping of two-dimensional bodies having a rhombic cross-section10.1016/j.jsv.2014.02.030 ↗
7. Efficiency investigation on energy harvesting from airflows in HVAC system based on galloping of isosceles triangle sectioned bluff bodies10.1016/j.energy.2019.02.002 ↗
8. Improving the performance of galloping micro-power generators by passively manipulating the trailing edge10.1063/1.5016102 ↗
9. Piezoelectric galloping energy harvesting enhanced by topological equivalent aerodynamic design10.1016/j.enconman.2020.113260 ↗
10. Zhao, K., Zhang, Q., and Wang, W. (2019). Optimization of Galloping Piezoelectric Energy Harvester with V-Shaped Groove in Low Wind Speed. Energies, 12.10.3390/en12244619 ↗
11. Zheng, J., Li, Z., and Zhang, H. (2024). Low-Wind-Speed Galloping Wind Energy Harvester Based on a W-Shaped Bluff Body. Energies, 17.10.3390/en17040958 ↗
12. High-performance piezoelectric wind energy harvester with Y-shaped attachments
13. Yuan, Y., Wang, H., Yang, C., Sun, H., Tang, Y., and Zhang, Z. (2023). Exploring the Potential of Flow-Induced Vibration Energy Harvesting Using a Corrugated Hyperstructure Bluff Body. Micromachines, 14.10.3390/mi14061125 ↗
14. Ewere, F., Wang, G., and Frendi, A. (2015, January 5–9). Galloping Piezoelectric Energy Harvester with Bio-inspired Square Bluff Body. Proceedings of the 23rd AIAA/AHS Adaptive Structures Conference Materials, Kissimmee, FL, USA.10.2514/6.2015-1257 ↗
15. Exploring the potential benefits of using metasurface for galloping energy harvesting10.1016/j.enconman.2021.114414 ↗
16. Improving the performance of galloping energy harvester with striped bluff body10.1063/5.0151151 ↗
17. Nonlinear dynamics of galloping-based piezoaeroelastic energy harvesters10.1140/epjst/e2013-01940-x ↗
18. Modeling and nonlinear analysis of piezoelectric energy harvesting from transverse galloping10.1088/0964-1726/22/2/025016 ↗
19. Improving the galloping energy harvesting performance with magnetic coupling10.1016/j.ijmecsci.2022.107785 ↗
20. Modeling and experimental investigation of asymmetric distance with magnetic coupling based on galloping piezoelectric energy harvester10.1088/1361-665X/ac6a2f ↗
21. Assessment of the role of structural nonlinearity in galloping energy harvesters
22. Exploiting stiffness nonlinearities to improve flow energy capture from the wake of a bluff body10.1016/j.physd.2016.07.005 ↗
23. A double-beam piezo-magneto-elastic wind energy harvester for improving the galloping-based energy harvesting10.1063/1.5126476 ↗
24. Design, modeling and experiments of broadband tristable galloping piezoelectric energy harvester10.1007/s10409-020-00928-5 ↗
25. Dynamics and performance of a two degree-of-freedom galloping-based piezoelectric energy harvester10.1088/1361-665X/ab0852 ↗
26. An Experimental Study of a Two-Degree-of-Freedom Galloping Energy Harvester10.1002/er.5878 ↗
27. A Comb-Like Beam based Piezoelectric System for Galloping Energy Harvesting10.1016/j.ymssp.2020.107301 ↗
28. Improved Theoretical Analysis and Design Guidelines of a Two-Degree-of-Freedom Galloping Piezoelectric Energy Harvester10.1177/1045389X211011681 ↗
29. Enhanced piezoelectric galloping energy harvesting using 2 degree-of-freedom cut-out cantilever with magnetic interaction10.7567/JJAP.53.060302 ↗