Analysis of Rosen type energy harvesting devices from porous piezoceramics with great longitudinal piezomodulus,ZAMM - Journal of Applied Mathematics and Mechanics

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Analysis of Rosen type energy harvesting devices from porous piezoceramics with great longitudinal piezomodulus
ZAMM - Journal of Applied Mathematics and Mechanics ( IF 2.3 ) Pub Date : 2020-09-26 , DOI: 10.1002/zamm.202000129
Andrey V. Nasedkin ₁ , Pavel A. Oganesyan ₁ , Arkady N. Soloviev _{1,

2}

Affiliation

This paper describes analytical and numerical modeling of the energy harvesting device based on composite piezoelectric materials. The device is a nonuniformly polarized porous piezoceramic compound plate such as a Rosen‐type piezoelectric transformer with single bimorph section. The effective properties of porous piezoceramics with great longitudinal piezoelectric strain coefficient d₃₃ were calculated in the ACELAN‐COMPOS finite element package. An analytical applied theory for a piecewise uniformly polarized piezoelectric generator was developed and compared with the results of finite element simulation performed in ACELAN package. An efficient design of a cantilever‐based energy harvesting device is proposed. The analysis of the considered devices depending on the percentage of porosity of piezoceramics and boundary conditions is carried out. It is shown that with an increase in the percentage of porosity, the output characteristics of energy harvesting devices improve. In addition, different boundary conditions were studied for specific PEG made of porous ceramics with non‐homogeneous polarization to find more effective scheme of fixing.

中文翻译：

纵向压电模量大的多孔压电陶瓷的Rosen型能量收集装置的分析

本文介绍了基于复合压电材料的能量收集装置的分析和数值建模。该设备是非均匀极化的多孔压电陶瓷复合板，例如具有单个双压电晶片截面的Rosen型压电变压器。纵向压电应变系数为d ₃₃的多孔压电陶瓷的有效特性是在ACELAN-COMPOS有限元软件包中计算的。建立了分段均匀极化压电发生器的分析应用理论，并将其与ACELAN封装中进行的有限元模拟结果进行了比较。提出了一种基于悬臂的能量收集装置的有效设计。根据压电陶瓷的孔隙率百分比和边界条件对所考虑的器件进行了分析。结果表明，随着孔隙率的增加，能量收集装置的输出特性得到改善。此外，针对具有非均质极化的多孔陶瓷制成的特定PEG研究了不同的边界条件，以找到更有效的固定方案。

更新日期：2020-09-26

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