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首页> 外文期刊>Acta astronautica >Design and performance evaluation of a piezoelectric aeroelastic energy harvester based on the limit cycle oscillation phenomenon
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Design and performance evaluation of a piezoelectric aeroelastic energy harvester based on the limit cycle oscillation phenomenon

机译：基于极限循环振荡现象的压电气动弹性能量采集器的设计与性能评估

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摘要

In the present era, the demand for self-powered electronic instruments is increasing and their energy consumption is decreasing. The ability to extract energy from the operating environment is of great importance in advanced industrial applications particularly in the field of aerospace. In this research, a nonlinear piezoelectric aeroelastic energy harvester (PAEH) is modeled based on fluid-structure interaction (FSI) that represents an important area of research for the development of innovative energy harvesting solution. This PAEH operates on post critical aeroelastic behavior i.e., Limit Cycle Oscillations (LCOs) that arise after the flutter velocity. Moreover, it is emphasized that the determination of aerodynamic model is necessary for correct prediction of PAEH performance. The design of an aeroelastic harvester based on the use of two different types of piezoelectric materials is presented. The designed model is suitable for energy harvesting and can be utilized to drive nano and microelectronics. Maximum output power obtained for the designed PAEH is found to be 0.55 mW.
机译：在当今时代，对自供电电子仪器的需求在增加，其能耗也在降低。从操作环境中提取能量的能力在先进的工业应用中，特别是在航空航天领域中，非常重要。在这项研究中，基于流体-结构相互作用（FSI）对非线性压电气动弹性能量采集器（PAEH）进行建模，这代表了开发创新的能量采集解决方案的重要研究领域。该PAEH在后临界空气弹性行为（即在振颤速度之后出现的极限循环振荡（LCO））下运行。此外，要强调的是，空气动力学模型的确定对于正确预测PAEH性能是必要的。提出了一种基于两种不同类型的压电材料的气动弹性收割机的设计。设计的模型适用于能量收集，可用于驱动纳米和微电子学。对于设计的PAEH，获得的最大输出功率为0.55 mW。

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