PERFORMANCE OF A PIEZOELECTRIC ENERGY HARVESTER WITH RUBBER COMPOUND MODIFICATION

• Main Authors: Muhamad L., Saparin M.A., Salleh H.
• Other Authors: 56951116100
• Format: Conference paper
• Published: Institute of Physics 2025
• Subjects: Brittle fracture; Energy harvesting; Lead zirconate titanate; Open circuit voltage; Piezoelectricity; Compound layer; Compound modifications; Electrical charges; Energy Harvester; Fatigue failures; Mobile electronics; Performance; Piezoelectric energy harvesters; Power; PZT; Rubber

Recently, there has been a significant increase in the research on Piezoelectric energy harvester. Piezoelectric energy harvester is capable of producing electrical charge when mechanically deformed. The application is to be used to power up mobile electronic. The common problem in the piezoelectric energy harvester is the material is brittle and causes fatigue failure at the same time the material is relatively costly. One of the method to address this problem is to add a rubber compound layer which can improve the flexibility and power output of the energy harvester. It can also improve the cost per output density of the piezoelectric energy harvester because the rubber compound has low cost. But, currently none of existing literatures explore into this type application. Thus, the objective of this paper is to investigate the voltage output and effectiveness of piezoelectric energy harvester with rubber compound modification. The test in the laboratory was set up to optimize PZT (Lead Zirconate Titanate) Energy Harvester cantilever beams using rubber compound layer as modification. The tests were conducted using frequency range of 30 Hz to 70 Hz with fixed RMS 0.25g acceleration. The result shows promising output for the PZT energy harvester with rubber compound, with an increase of between 16.6% to 61.2% open circuit voltage when compared to the standard PZT. ? 2024 Institute of Physics Publishing. All rights reserved.