Study on the Loss and Characteristics of Giant Magnetostrictive Transducers.

IF 3 3区 工程技术 Q2 CHEMISTRY, ANALYTICAL
Micromachines Pub Date : 2025-08-26 DOI:10.3390/mi16090982
Qiang Liu, Xiping He, Weiguo Wang, Yanning Yang
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引用次数: 0

Abstract

The purpose of this work is to enable the giant magnetostrictive transducer to work efficiently. In this work, the finite element method was used to carry out a dynamic analysis and magnetic analysis of the transducers of GMM rods with different structures, and the transducers of three structural rods were developed, and the output amplitude and impedance of the three transducers were experimentally tested. The results show that the stress of the rod near the end of the tail mass was larger than that near the end of the head mass. The eddy current and hysteresis losses of the transducer were mainly concentrated on the outer diameter surface of the rod, near the cutting slit, and near the connection between the slices. In addition, there is a certain amount of eddy current loss on the magnetic conductor, permanent magnet, and coil. In the transducer with the untreated rod, the resistance and inductance were the smallest. The inductance of the transducers with the sliced rods were greater than those in the transducers with the slit rods. The transducer with the untreated rod has the highest resonant frequency and the smallest output amplitude, the resonant frequency of the transducers with the sliced rods was lower than that of the transducers with the slit rods, while the output amplitude of the transducers with the sliced rods was greater than that of the transducers with the slit rods. The simulated values of the resonant frequency, output amplitude, resistance, and inductance of the transducers of the three structural rods were basically consistent with the tested values.

超磁致伸缩换能器的损耗及特性研究。
本工作的目的是使超磁致伸缩换能器能够高效地工作。本文采用有限元法对不同结构的GMM棒换能器进行了动力分析和磁力分析,研制了三种结构棒的换能器,并对三种换能器的输出幅值和阻抗进行了实验测试。结果表明:杆在尾端附近的应力比在头端附近的应力大;换能器的涡流和磁滞损耗主要集中在杆的外径表面、切割缝附近和片间连接处。此外,在磁性导体、永磁体和线圈上存在一定的涡流损耗。在未处理棒的换能器中,电阻和电感最小。切棒式换能器的电感比切棒式换能器的电感大。未经处理的换能器谐振频率最高,输出幅值最小,切棒换能器的谐振频率低于切棒换能器的谐振频率,而切棒换能器的输出幅值大于切棒换能器。三种结构杆换能器的谐振频率、输出幅值、电阻和电感的模拟值与试验值基本一致。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Micromachines
Micromachines NANOSCIENCE & NANOTECHNOLOGY-INSTRUMENTS & INSTRUMENTATION
CiteScore
5.20
自引率
14.70%
发文量
1862
审稿时长
16.31 days
期刊介绍: Micromachines (ISSN 2072-666X) is an international, peer-reviewed open access journal which provides an advanced forum for studies related to micro-scaled machines and micromachinery. It publishes reviews, regular research papers and short communications. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. There is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced.
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