Version 1
: Received: 10 May 2024 / Approved: 11 May 2024 / Online: 12 May 2024 (07:44:53 CEST)
How to cite:
Sarbinowski, F.; Starosta, R. On Efficiency of Two-Degree-of-Freedom Galloping Energy Harvesters with Two Transducers. Preprints2024, 2024050733. https://doi.org/10.20944/preprints202405.0733.v1
Sarbinowski, F.; Starosta, R. On Efficiency of Two-Degree-of-Freedom Galloping Energy Harvesters with Two Transducers. Preprints 2024, 2024050733. https://doi.org/10.20944/preprints202405.0733.v1
Sarbinowski, F.; Starosta, R. On Efficiency of Two-Degree-of-Freedom Galloping Energy Harvesters with Two Transducers. Preprints2024, 2024050733. https://doi.org/10.20944/preprints202405.0733.v1
APA Style
Sarbinowski, F., & Starosta, R. (2024). On Efficiency of Two-Degree-of-Freedom Galloping Energy Harvesters with Two Transducers. Preprints. https://doi.org/10.20944/preprints202405.0733.v1
Chicago/Turabian Style
Sarbinowski, F. and Roman Starosta. 2024 "On Efficiency of Two-Degree-of-Freedom Galloping Energy Harvesters with Two Transducers" Preprints. https://doi.org/10.20944/preprints202405.0733.v1
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, limit cycles of mathematical models of devices were determined. Analytical expressions derived from 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 four criteria parameters: peak efficiency, denoting the maximum efficiency of the system, and high efficiency bandwidth, which describes the range of flow velocities within which the efficiency remains at no less than 90% of peak efficiency. The values of these parameters are heavily reliant on the speed at which the system achieves peak efficiency—referred to as the nominal speed nominal speed, which in turn is related to the critical speed of the system. Comparative analysis revealed that only the two-degree-of-freedom device equipped with two electromechanical transducers can potentially outperform a simple one-degree-of-freedom system in terms of efficiency.
Keywords
energy harvesting; transverse galloping; harmonic balance method
Subject
Engineering, Energy and Fuel Technology
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
