Electrical-magnetic-thermal-mechanical Coupling Characteristics of Giant Magnetostrictive Transducer Considering Temperature Disturbance

被引：0
|
作者：
Zhao N. [1 ]
Gao B. [1 ]
Ning Q. [1 ]
Luo A. [1 ]
机构：
[1] National Electric Power Conversion and Control Engineering Technology Research Center, Hunan University, Hunan Province, Changsha
来源：
Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | 2022年 / 42卷 / 16期
基金：
中国国家自然科学基金;
关键词：
electromagnetic calculation; giant magnetostrictive transducer (GMT); multiple physical field coupling; nonlinear behavior; temperature disturbance;
D O I：
10.13334/j.0258-8013.pcsee.211136
中图分类号：
学科分类号：
摘要：
The input and output characteristics of giant magnetostrictive electroacoustic transducer are affected by the multi-field coupling effect, which presents complex nonlinearity. The linearized piezomagnetic equations have been adopted by most of the existing studies to analyze the coupling behavior, these studies cannot reflect the nonlinear characteristics of the transducer. Based on the consideration of magnetic flux leakage and eddy current effect after cutting, a comprehensive equivalent circuit model of the transducer was established in this paper. The model took temperature, bias magnetic field and pre-stressing into consideration. The influence of temperature on the offset point of the transducer was investigated, and the optimal output strategy of the transducer was designed. Finally, an experimental platform was built to verify the effectiveness of the model. Experimental results show that the proposed model could effectively track the practical input-output behavior of the transducer. Meanwhile, the optimal offset points at different temperatures can be found to achieve the best output performance of the transducer. © 2022 Chin.Soc.for Elec.Eng.
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收藏
页码：6116 / 6125
页数：9
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