High Power Output of L-shape PZT Power Generator Working in Bending-Shear Mode
High Power Output of L-shape PZT Power Generator Working in Bending-Shear Mode
复制标题
DOI：
--
复制
发表时间：
2017
期刊：
影响因子：
--
通讯作者：
A. A. Basari-A.;S. Hashimoto
中科院分区：
文献类型：
--
作者：
A. A. Basari-A.;S. Hashimoto
本文提出了一种新型的l型压电陶瓷振动发电机，设计用于弯剪模式下发电。l型结构可以利用振动的直线运动对附着在结构上的PZT器件产生扭转力，在弯曲运动和剪切运动中产生能量。首先，利用Solidworks软件对结构的应力和固有频率进行了仿真研究。结果表明：结构的第一固有频率为21 Hz，应力分布基本均匀；然后，对固有频率一阶振型下的发电量进行了实验分析。最后，与典型悬臂式压电陶瓷发电机结构进行了性能比较。结果表明，所提出的器件能够产生比典型悬臂式压电陶瓷器件更高的电功率。
This paper proposes a new L-shape PZT vibration power generator designed to generate electrical power when working in bending-shear mode. The L-shape structure can utilize the linear motion of vibration to generate torsion force on the PZT device attached to the structure for energy generation in both bending and shear motions. At first, a simulation study for evaluating the structure’s stress and natural frequency was conducted using Solidworks software. The result shows that the first natural frequency of the structure was at 21 Hz, and it was almost uniformly distributed in terms of distribution of the stress. Next, an experimental analysis was conducted to evaluate the electrical power generation at the first mode of the natural frequency. Lastly, the performance of the proposed power generator was compared to the typical structure of cantilever PZT power generator. The results show that the proposed device was able to produce higher electrical power than the typical cantilever of PZT devices.