Influence of the potential barrier switching frequency on the effectiveness of energy harvesting
Type
Description research data
Authors/Creators
Date
2024-12-06
Deposit location
Zenodo
Abstract EN
Dataseries and figures represent the dynamics of such a system with the additional possibility of a switchable potential barrier in the nonlinear resonator. The dynamic kinetic energy harvesting systems have been developed that use nonlinear mechanical resonators and corresponding transducers to generate electrical power. Nonlinearities are important to achieve broadband input frequency efficiency, which is necessary to ensure that the output voltage has a satisfactory level in the presence of a variable ambient vibration source. To improve the effectiveness of the energy generator, we numerically test the possibility of using abrupt changes in the system parameters. The analysis of the voltage output for different frequencies of both the harmonic excitations and the potential barrier switching was carried out. In a range that includes low and high switching frequencies of potentials, the periodic solutions dominate in the bifurcation diagrams. In view of the high switching frequency, the RMS values of the voltage at the piezoelectric electrodes are significantly reduced. The highest RMS values of the voltage induced on the piezoelectric electrodes are observed when chaotic solutions occur, due to their specific ability to pass the potential barrier at relatively low excitation. The results also show that sufficiently high mechanical damping minimizes the influence of the transient states caused by the switching potentials.
Series information
Series of the RMS values of the voltage induced at the piezoelectric electrodes: system with two wells (Relevant parameters are indicated.):
Fig3a_w015_p01.txt
Fig3a_w015_p05.txt
Series of the RMS values of the voltage induced at the piezoelectric electrodes: system with three wells:
Fig3b_w015_p01.txt
Fig3b_w015_p05.txt
Series of the RMS values of the voltage induced at the piezoelectric electrodes: system with a switchable potential barrier:
Fig3c_w015_p01.txt
Fig3c_w015_p05.txt
Series of data for bifurcation diagrams that show the effect of the dimensionless amplitude p of mechanical vibrations, which affect the energy harvesting system:
Fig4a_p01_w0015.txt
Fig4a_p025_w0015.txt
Fig4b_p04_w0015.txt
Fig4b_p055_w0015.txt
Series illustrating the influence of ωS on the structure of the bifurcation diagrams for constant value of dimensionless amplitude p = 0.1. Parameters of the corresponding cases are indicated in the file names and figures.
Fig7a_p01_w0005.txt
Fig7b_p01_w001.txt
Fig7c_p01_w003.txt
Fig7d_p01_w1.txt
Fig7e_p01_w3.txt
Fig7f_p01_w4.txt
Keywords EN
energy harvesting
chaotic vibrations
switching potential
non-smooth dynamics
Related publications
URL of the deposit location
Related project
SHENG-2
Number of related project/contract
2021/40/Q/ST8/00362
Statistics
3Views Margielewicz, J., Gąska, D., Litak, G., Haniszewski, T., Wolszczak, P., & Trigona, C. (2024). Influence of the potential barrier switching frequency on the effectiveness of energy harvesting. https://doi.org/10.5281/zenodo.14176576
No Thumbnail Available
Licence
Except as otherwise noted, this item is licensed under the Attribution licence | Permitted use of copyrighted works
Accessibility issue?Request a WCAG-compliant file
Publication available in collections: