Analysis of Energy Harvesting Performance for <inline-formula><tex-math>$d_{15}$</tex-math> </inline-formula> Mode Piezoelectric Bimorph in Series Connection Based on Timoshenko Beam Model

Zheng X.; Zhang Z.; Zhu Y.; Mei J.; Peng S.; Li L.; Yu Y.

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$d_{15}$

Mode Piezoelectric Bimorph in Series Connection Based on Timoshenko Beam Model

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Analysis of Energy Harvesting Performance for $d_{15}$ Mode Piezoelectric Bimorph in Series Connection Based on Timoshenko Beam Model

机译：Timoshenko梁模型的串联压电 $ d_ {15} $ 型压电双压电晶片的能量收集性能分析

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摘要

Shear strain is exactly described by combining the piezoelectric constitutive equations of mode with the Timoshenko beam model. We provide an electromechanical model to evaluate the energy harvesting performance of shear mode cantilevered piezoelectric bimorph in series connection. The output peak voltage–frequency and the output peak power–frequency curves are simulated by using the proposed model at different load resistances. The results are in good agreement with the finite element simulation results, indicating that the proposed model is valid for evaluating the energy harvesting performances of the cantilevered piezoelectric bimorph. The variations of the output peak voltage and power with load resistance change for excitation are also discussed. Moreover, the effect of proof mass on the energy harvesting performance is analyzed at certain load resistance. The proposed model can be used for the structure optimized design and performance improvement of shear mode piezoelectric energy harvesting.

机译：剪切应变是通过将模式的压电本构方程与Timoshenko梁模型相结合来精确描述的。我们提供了一个机电模型来评估串联模式下的剪切模式悬臂压电双压电晶片的能量收集性能。使用所提出的模型在不同的负载电阻下，模拟了输出峰值电压-频率曲线和输出峰值功率-频率曲线。结果与有限元仿真结果吻合良好，表明所提出的模型对于评价悬臂压电双压电晶片的能量采集性能是有效的。还讨论了输出峰值电压和功率随用于激励的负载电阻变化的变化。此外，在一定的负载电阻下分析了质量证明对能量收集性能的影响。该模型可用于结构优化设计和剪切模式压电能量收集的性能改进。

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来源
《Mechatronics, IEEE/ASME Transactions on》 |2015年第2期|728-739|共12页
作者
Zheng X.; Zhang Z.; Zhu Y.; Mei J.; Peng S.; Li L.; Yu Y.;
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作者单位

, School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China;

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原文格式 PDF
正文语种 eng
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关键词
Analytical models; Energy harvesting; Equations; Finite element analysis; Load modeling; Materials; Mathematical model; $d_{{rm 15}}$ mode; Cantilevered bimorph; Timoshenko beam; d_15 mode; energy harvesting; series connection;

机译：分析模型;能量收集;方程;有限元分析;载荷建模;材料;数学模型;$ d _ {{rm 15}} $模式;悬臂双压电晶片;Timoshenko梁;d_15模式;能量收集;串联;

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Analysis of Energy Harvesting Performance for $d_{15}$ Mode Piezoelectric Bimorph in Series Connection Based on Timoshenko Beam Model

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