Multi-Variable Optimization to Enhance the Performance of a Cantilevered Piezoelectric Harvester

Bashar Alzuwayer, Saad F. Almokmesh (), Abdulwahab Alhashem and Talal Alotaibi
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Bashar Alzuwayer: Department of Automotive Mechanics and Marine Engineering Technology, College of Technological Studies, PAAET, Kuwait City 70654, Kuwait
Saad F. Almokmesh: Department of Mechanical Power and Refrigeration Technology, College of Technological Studies, PAAET, Kuwait City 70654, Kuwait
Abdulwahab Alhashem: Department of Mechanical Power and Refrigeration Technology, College of Technological Studies, PAAET, Kuwait City 70654, Kuwait
Talal Alotaibi: Department of Mechanical Power and Refrigeration Technology, College of Technological Studies, PAAET, Kuwait City 70654, Kuwait

Energies, 2024, vol. 17, issue 17, 1-20

Abstract: Over the past decade, various researchers have shown the practicality of extracting electrical energy from vibrating structures. The primary objective of this research was to optimize the parameters of a basic cantilever harvester to maximize the energy production of electricity from surrounding mechanical energy. A distributed parameter model and its modal solution were utilized to determine the design variables via a parametric investigation. It is important to ensure sufficient power generation when there is a wide range of frequencies being excited, without any specific frequency being emphasized. The cost function for the optimization problem was defined as the average power within a specific frequency range, considering geometric and physical restrictions. It was discovered that different parameters’ values can be utilized to generate varying maximum power levels for different frequency ranges. Furthermore, a comparative analysis was performed between the finite element method (FEM) using ANSYS and the current harvesting model. The comparison demonstrated a high level of concordance, enabling the utilization of the finite element method (FEM) for subsequent investigation.

Keywords: piezoelectric; energy harvesting; optimization (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2024
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