Abstract This research is focused on piezoelectric energy harvesting at high pressure fields and low frequency applications. Lead Zirconate Titanate (PZT) is the primary piezoelectric evaluated with a focus on different PZT types (soft and hard). Study of piezoelectric energy harvesting has been done earlier in cantilever designs however this study concentrates on the d33 mode. Several PZT samples and geometries have been tested as well as composite structures with different PZT types. The utilization of electrodynamic test systems and simulation tools used for the evaluation of designed structure property relations. Converted power is compared among various samples and 2:2 composite structure design was found to outperform other configurations in term of electromechanical power conversion. Experimental tests produce an output power as high as 31mW at a force of 2.5kN and frequency of 10Hz. Further investigation into 2:2 composites was conducted to optimize electromechanical output power.

中文翻译：

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用于能量收集的 PZT（软/硬）复合材料的评估

摘要 本研究的重点是高压场和低频应用中的压电能量收集。锆钛酸铅 (PZT) 是主要的压电材料，重点评估不同的 PZT 类型（软和硬）。压电能量收集的研究在悬臂梁设计中较早进行，但本研究集中在 d33 模式。已经测试了多个 PZT 样品和几何形状以及具有不同 PZT 类型的复合结构。使用电动测试系统和模拟工具来评估设计的结构特性关系。比较各种样品的转换功率，发现 2:2 复合结构设计在机电功率转换方面优于其他配置。实验测试在 2.5kN 的力和 10Hz 的频率下产生高达 31mW 的输出功率。对 2:2 复合材料进行了进一步研究，以优化机电输出功率。