期刊
JOURNAL OF INTELLIGENT MATERIAL SYSTEMS AND STRUCTURES
卷 32, 期 2, 页码 169-181出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/1045389X20952534
关键词
Piezoelectric; energy harvesting; piezo films; piezoelectric
The behavior of film-type piezoelectric energy harvesters under simultaneous aerodynamic and base excitation was experimentally investigated using two flutter type piezoelectric film transducers. The voltage output and tip deflection of the harvesters were monitored for analysis, with harvesting power output estimated by simple calculations to support the optimal design of vibration energy harvesting layouts with piezoelectric transducers. Information was extracted about the exploitable bandwidth of piezoelectric films for further study.
The behavior of film-type piezoelectric energy harvesters under simultaneous aerodynamic and base excitation was experimentally investigated. Two flutter type piezoelectric film transducers (LDT0-028K and LDT1-028K) were excited with the 31 excitation mode. The aerodynamic excitation was produced by a centrifugal fan. The base excitation was produced by a cone speaker driven by sinusoidal voltage waveforms in the frequency range of 20 to 250 Hz. This frequency range includes the two transducers' resonant frequencies. The voltage output of the harvesters was monitored by an oscilloscope and the base excitation was monitored with acceleration measurements. The measured output voltage signals were analyzed by Fast Fourier Transformation. The tip deflection of the piezo-films was monitored with long exposure photography. Harvesting power output was estimated by simple calculations. The results are discussed aiming to support the optimal design of vibration energy harvesting layouts with piezoelectric transducers. To this end, information was extracted about the exploitable bandwidth of piezoelectric films.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据