- 期刊
- OpenAccess
Finite Element Analysis and Experiment on a Piezoelectric Harvester with Multiple Cantilevers
並列摘要
A piezoelectric harvester with multiple cantilevers was proposed for harvesting environment vibration energy from multiple directions and broadening the resonance frequency range. The harvester was composed of a steel base and many different cantilevers directing differently. The single cantilever was analyzed by Finite Element Method (FEM). The effects of the structure parameters of the single cantilever on the nature frequency were gotten by modal analysis. The output voltage value of the single cantilever was maximal at resonance by harmonic analysis. The electricity generating capability of the harvester was tested and the results indicated the harvester could generate the higher output voltage in a special frequency scope comparing with a single cantilever. The effective excitation frequency range of the harvester was 12~20 Hz. The output power of the harvester was about 2.88 mW at vibration acceleration 0.6 g, the outer load 500 Ω and the excitation frequency 16 Hz. The harvester could broaden the work frequency scope and supply electric energy for large distributed wireless sensor systems and subminiature power devices.
延伸閱讀
- Chen, Y. M. (2004). Development of a 3D Finite-Element Solver for Piezoelectric Transformer Analysis [master's thesis, National Taiwan University]. Airiti Library. https://doi.org/10.6342/NTU.2004.02260
- 賴俊俊（2015）。Design, fabrication and performance evaluation for the elastic elements coupled multi-frequency piezoelectric harvester〔碩士論文，國立中央大學〕。華藝線上圖書館。https://www.airitilibrary.com/Article/Detail?DocID=U0031-0412201512054292
- Sheikh, N., Ashraf, M. W., Afzulpurkar, N., Sohail, M., & Tayyaba, S. (2012). Performance Analysis of Commercially Available Piezoelectric Based Energy Harvester. Bahria University Journal of Information & Communication Technologies, 5(1), 19-22. https://www.airitilibrary.com/Article/Detail?DocID=19994974-201201-201408050031-201408050031-19-22
- 陳重德、楊慶隆、陳冠維（2015）。The Fabrication and Measurement of a Piezoelectric Harvester Driven by Plucking。載於中華民國振動與噪音工程學會（主編），中華民國振動與噪音工程學會論文集（頁424-427）。中華民國振動與噪音工程學會。https://www.airitilibrary.com/Article/Detail?DocID=a0000192-201506-201509220005-201509220005-424-427
- Hsiao, T. C. (2004). Finite Element Modeling of the Piezoelectric Cantilever Beam and Experimental Validation [master's thesis, Chung Yuan Christian University]. Airiti Library. https://doi.org/10.6840/cycu200400714