Energy Harvesting in a System with a Two-Stage Flexible Cantilever Beam
Creators
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1.
Silesian University of Technology
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2.
Lublin University of Technology
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3.
Northwestern Polytechnical University
Description
The subject of the research contained in this repository is a new design solution for an energy harvesting system resulting from the combination of a quasi-zero-stiffness energy harvester and a two-stage flexible cantilever beam. Numerical tests were divided into two main parts-analysis of the dynamics of the system due to periodic, quasiperiodic, and chaotic solutions and the efficiency of energy generation. The results of numerical simulations were limited to zero initial conditions, as they are the natural position of the static equilibrium. The repository compares graphically the energy efficiency for the selected range of the dimensionless excitation frequency. For this purpose, three cases of piezoelectric mounting were presented on figures - only on the first stage of the beam, on the second and both stages. The analysis has been carried out with the use of diagrams showing difference of the effective values of the voltage induced on the piezoelectric electrodes. The results indicate that for effective energy harvesting, it is advisable to attach piezoelectric energy transducers to each step of the beam despite possible asynchronous vibrations.
Series information (English)
data_03_p_025.csv: Results of testing the periodicity of vibrations of the energy recovery system at an intensity of p = 0.25. Column 1: periodicity T, column 2: frequency omega.
data_03_p_050.csv: Results of testing the periodicity of vibrations of the energy recovery system at an intensity of p = 0.50. Column 1: periodicity T, column 2: frequency omega.
data_03_p_075.csv: Results of testing the periodicity of vibrations of the energy recovery system at an intensity of p = 0.75. Column 1: periodicity T, column 2: frequency omega.
data_03_p_100.csv: Results of testing the periodicity of vibrations of the energy recovery system at an intensity of p = 1.00. Column 1: periodicity T, column 2: frequency omega.
data_09_p_025.csv: Results of testing the values of rms uRMS voltages related to the periodicity of vibrations of the energy recovery system at an intensity of p = 0.25. Column 1: uRMS, column 2: frequency
data_09_p_050.csv: Results of testing the values of rms uRMS voltages related to the periodicity of vibrations of the energy recovery system at an intensity of p = 0.50. Column 1: uRMS, column 2: frequency
data_09_p_075.csv: Results of testing the values of rms uRMS voltages related to the periodicity of vibrations of the energy recovery system at an intensity of p = 0.75. Column 1: uRMS, column 2: frequency
data_09_p_100.csv: Results of testing the values of rms uRMS voltages related to the periodicity of vibrations of the energy recovery system at an intensity of p = 1.00. Column 1: uRMS, column 2: frequency
Files
data_03_p_025.csv
Files
(916.8 kB)
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Additional details
Related works
- Is published in
- Journal article: 10.3390/s22197399 (DOI)