Eddy Current Loss and Thermal Control of Giant Magnetostrictive Transducer

被引：0
|
作者：
Lan T. [1 ]
Feng P. [1 ]
Zhang J. [1 ]
Zhou H. [1 ]
机构：
[1] Department of Mechanical Engineering, Tsinghua University, Beijing
来源：
Jixie Gongcheng Xuebao/Journal of Mechanical Engineering | 2022年 / 58卷 / 21期
关键词：
eddy current loss; giant magnetostriction; thermal control; transducer; ultrasonic machining;
D O I：
10.3901/JME.2022.21.243
中图分类号：
学科分类号：
摘要：
Giant magnetostrictive material can realize large-amplitude ultrasonic processing when it is used in a transducer. When the giant magnetostrictive transducer is used, it will generated a large eddy current loss, which will cause the temperature rise of the internal system of the transducer, and cause the unnecessary power loss. Thus, optimizing the design of the interior of the transducer to reduce the eddy current loss inside the transducer can effectively improve the energy utilization rate, reduce the temperature rise of the system, and improve the amplitude stability of the transducer. The theoretical model of the eddy current loss inside the giant magnetostrictive transducer is established, and the influence of the giant magnetostrictive material and permanent magnet slices on the eddy current loss is especially analyzed. The finite element simulation analysis of the eddy current loss and the overall temperature rise of the transducer caused by the giant magnetostrictive transducer is carried out with the help of ANSYS Workbench, and the eddy current loss law inside the transducer is obtained at theoretical level. Finally, a permanent magnet slice optimization scheme for giant magnetostrictive transducer is proposed. The results show that the eddy current loss of the transducer after slice optimization is significantly reduced, and the temperature rise during operation was significantly suppressed. © 2022 Editorial Office of Chinese Journal of Mechanical Engineering. All rights reserved.
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页码：243 / 249
页数：6
相关论文
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