Numerical and experimental study of a gauge-shaped beam for improved performance of piezoelectric energy harvester

Ibrahim, Dauda Sh. and Beibei, Sun and Fatai, Sado and Oluseyi, Orelaja Adewale and Sharif, Umer (2021) Numerical and experimental study of a gauge-shaped beam for improved performance of piezoelectric energy harvester. Microsystem Technologies-Micro-and-Nanosystems-Information Storage and processing, 27 (12). pp. 4253-4268. ISSN 0946-7076, DOI

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This paper examines a new, non-conventional, gauge-shaped beam (GSB) cantilever for enhanced vibration energy scavenging. The stress evolution of the GSB as well as its eigenfrequency and energy harvesting capability (when coupled with macro fiber composite (MFC) transducer) are investigated by finite element method. A comparison of performance between the proposed GSB cantilever configuration and conventional harvester of equal mass is also conducted. Both the simulation and experimental validation results showed that the gauge-shaped beam cantilever configuration has lower resonant frequencies and improved power output when used as harvester substrate. Further, we evaluated the effect of tip mass orientation/position on the GSB harvester performance by considering five different configurations namely, Confg A, Confg B, Confg C, Confg D and Confg E. The analysis shows that Confg A with 5 x 20 x 5 mm(3) tipmass dimension has the highest effect of 9.8% on the output power of the harvester compared to the other configurations. However, Confg C and D have the lowest resonant frequencies at fundamental vibration mode.

Item Type: Article
Funders: National key Research and Development Program of China (2019YFB2006404), Fundamental Research Funds for the Central University (2242019K3DN05)
Uncontrolled Keywords: Gauge-shaped beam; Improved performance; Piezoelectric energy harvester; Harvester performance
Subjects: T Technology > TJ Mechanical engineering and machinery
Divisions: Faculty of Engineering > Department of Mechanical Engineering
Depositing User: Ms Zaharah Ramly
Date Deposited: 18 Jul 2022 07:28
Last Modified: 18 Jul 2022 07:28

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