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Effect of Weight on the Resonant Tuning of Energy Harvesting Devices Using Giant Magnetostrictive Materials

机译：重量对使用大磁致伸缩材料的能量收集装置的谐振调谐的影响

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摘要

This study deals with the numerical and experimental study of the effect of weight on the resonant tuning and energy harvesting characteristics of energy harvesting devices using giant magnetostrictive materials. The energy harvesting device is made in a cantilever shape using a thin Terfenol-D layer, stainless steel (SUS) layer and a movable proof mass, among other things. In this study, two types of movable proof mass were prepared, and the device was designed to adjust its own resonant frequency automatically to match external vibration frequency in real time. Three-dimensional finite element analysis (FEA) was performed, and the resonant frequency, tip displacement, and output voltage in the devices were predicted and measured, and the simulation and experiment results were compared. The effects of the weight of the proof mass on self-tuning ability and time-varying behavior were then considered in particular.
机译：这项研究涉及数值对使用巨型磁致伸缩材料的能量收集装置的谐振调谐和能量收集特性的影响的数值和实验研究。能量收集装置使用薄的Terfenol-D层，不锈钢（SUS）层和可移动的质量块制成悬臂状。在这项研究中，准备了两种类型的可移动检测质量，该设备被设计为自动调整其自身的共振频率，以实时匹配外部振动频率。进行了三维有限元分析（FEA），预测和测量了器件的谐振频率，尖端位移和输出电压，并比较了仿真结果和实验结果。然后，特别考虑了质量块的重量对自整定能力和时变行为的影响。

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