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首页> 外文期刊>Magnetics, IEEE Transactions on >Design and Fabrication of a High-Efficiency Magnetostrictive Energy Harvester for High-Impact Vibration Systems
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Design and Fabrication of a High-Efficiency Magnetostrictive Energy Harvester for High-Impact Vibration Systems

机译：用于高冲击振动系统的高效磁致伸缩能量采集器的设计与制造

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摘要

This paper presents the design and fabrication of a vibration energy harvester based on giant magnetostrictive material, which consists of one coil-wound Terfenol-D rod with a permanent magnet (PM) and air gap in each magnetic circuit, and the PM array on the part of a cap amplifier. In this design, cap amplifiers and variable air gap are used to increase the harvesting effect of systems under environmental impact. Modeling and simulation are developed and performed to validate the concept. The relation of magnetic field in Terfenol-D rod is derived, and its uniformity and intensity are analyzed. Then, principal design parameters of the harvester, air gap, and cap amplifiers are determined, and its static analysis of the harvesting effect is performed. In addition, a prototype is fabricated and tested. The magnetostrictive-based vibration energy harvester can generate larger voltage and power than conventional smart harvesters and they can be safely used under the impact up to 20–30 MPa.
机译：本文介绍了一种基于巨型磁致伸缩材料的振动能量收集器的设计和制造，该能量收集器由一根缠绕有绕线的Terfenol-D杆（带有永磁体（PM））和每个磁路中的气隙组成，以及在其上的PM阵列组成。电容放大器的一部分。在此设计中，使用了电容放大器和可变气隙来提高系统在环境影响下的采集效果。开发并执行建模和仿真以验证该概念。推导了Terfenol-D棒中磁场的关系，并分析了其均匀性和强度。然后，确定收割机，气隙和电容放大器的主要设计参数，并对收割效果进行静态分析。此外，还制作并测试了原型。基于磁致伸缩的振动能量采集器可以产生比常规智能采集器更大的电压和功率，并且可以在高达20-30 MPa的冲击下安全使用。

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