Abstract In the present era, the possibility to generate electrical energy from an operational environment is a critical factor for an aerospace industry to drive microelectronic components. In this research, a solution for the energy harvesting mechanism based on fluid-structure interaction (FSI) is investigated. The possibility to harvest energy from post-critical aeroelastic behavior, known as Limit Cycle Oscillations (LCOs) through piezoelectric transduction is presented. A typical condition for energy harvesting, which requires a strong interaction between the external energy and the components where the harvester is embedded. The LCOs arise after the flutter speed in nonlinear aeroelastic systems, and these oscillations are utilized for harvesting phenomenon. The analytical model is developed for both the FSI and electromechanical behavior of the piezoelectric harvester. In particular, the importance of the aerodynamic model for determining the performance of the harvester is stressed. Two different piezoelectric materials, i.e. Lead zirconate titanate (PZT-5A) and Barium titanate (BaTiO3) is used in the designed harvester. The presented model is suitable to harvest energy and to drive wireless sensors. The maximum power output obtained by the designed piezoelectric aeroelastic energy harvester (PAEH) is found to be 5.5 mW for 0.1 mΩ of resistance.

中文翻译：

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压电非线性气动弹性能量收集器的建模与设计

摘要 在当今时代，从操作环境中产生电能的可能性是航空航天工业驱动微电子元件的关键因素。在这项研究中，研究了基于流固耦合 (FSI) 的能量收集机制的解决方案。提出了通过压电换能从后临界气动弹性行为（称为极限循环振荡 (LCO)）中获取能量的可能性。能量收集的典型条件，它需要外部能量与嵌入收集器的组件之间的强相互作用。LCO 在非线性气动弹性系统中的颤振速度之后出现，这些振荡被用于捕获现象。分析模型是针对压电采集器的 FSI 和机电行为开发的。特别强调了空气动力学模型对于确定收割机性能的重要性。两种不同的压电材料，即锆钛酸铅 (PZT-5A) 和钛酸钡 (BaTiO3) 用于设计的采集器。所提出的模型适用于收集能量和驱动无线传感器。发现设计的压电气动弹性能量收集器 (PAEH) 获得的最大功率输出为 5.5 mW，电阻为 0.1 mΩ。锆钛酸铅 (PZT-5A) 和钛酸钡 (BaTiO3) 用于设计的收割机。所提出的模型适用于收集能量和驱动无线传感器。发现设计的压电气动弹性能量收集器 (PAEH) 获得的最大功率输出为 5.5 mW，电阻为 0.1 mΩ。锆钛酸铅 (PZT-5A) 和钛酸钡 (BaTiO3) 用于设计的收割机。所提出的模型适用于收集能量和驱动无线传感器。发现设计的压电气动弹性能量收集器 (PAEH) 获得的最大功率输出为 5.5 mW，电阻为 0.1 mΩ。