Pulsed Magnetic Fields and Its Applications

A special issue of Electronics (ISSN 2079-9292).

Deadline for manuscript submissions: closed (31 January 2024) | Viewed by 1295

Special Issue Editors

Wuhan High Magnetic Field Center, Huazhong University of Science and Technology, Wuhan 430074, China
Interests: pulsed magnets; electromagnetic forming; machine learning and artificial intelligence

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Guest Editor
Wuhan High Magnetic Field Center, Huazhong University of Science and Technology, Wuhan 430074, China
Interests: electromagnetic forming; magnetic soft robotics; magnetophoresis

E-Mail Website
Guest Editor
Wuhan High Magnetic Field Center, Huazhong University of Science and Technology, Wuhan 430074, China
Interests: pulsed magnets; magnetization technique

Special Issue Information

Dear Colleagues,

Magnetic fields are one of the most fundamental natural phenomena. There is a rich history for human beings to understand and utilize the magnetic field and its related phenomena. As early as 2,000 years ago, the Chinese began to notice and utilize the interaction between the geomagnetic field and a magnetized pointer for navigation purposes. From the 19th century to the present, the exploration and exploitation of magnetic fields have been too innumerable to be listed, among which the pulsed magnet presents a technique toward the highest record of human-made magnetic field (50-2000 T, about 1–4 million times greater than the geomagnetic field, 5×10−6 T). Such pulsed magnet technology adopts the strategy of pulse mode (very short temporal duration (10−5~10−1 s)) to relieve the induced Joule heating, and invents advanced reinforcement methods to conquer the induced mechanical stress, thus enabling the generation of extremely high amplitude for the magnetic field. By providing extreme high magnetic fields, such technique enables a powerful instrument for fundamental physical research and opens a wide application potentials.

The purpose of this Special Issus is to provide an open platform for scholars to share their latest progress in the generation, diagnosis, and applications of pulsed magnetic fields. Potential submission topics include but are not limited to the following:

  • Advanced pulsed magnet technology, including the destructive and non-destructive approaches;
  • High accuracy and low-cost diagnosis methods for pulsed magnetic fields;
  • High-efficiency analytical/numerical modeling methods for pulsed magnetic fields;
  • New insight into the pulsed magnetic field-related phenomena;
  • Applications of pulsed magnetic fields I: Utilization on the force effect, such as metal working;
  • Applications of pulsed magnetic fields II: Utilization on the magnetization effect;
  • Applications of pulsed magnetic fields III: Utilization on other effects;
  • Other interesting magnetic field phenomena and its applications.

Dr. Zhipeng Lai
Dr. Quanliang Cao
Dr. Yiliang Lv
Guest Editors

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Keywords

  • magnetic field
  • pulsed magnets
  • magnetization
  • multiphysics interaction
  • modeling
  • diagnosis
  • applications

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Published Papers (2 papers)

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Research

13 pages, 4530 KiB  
Article
Investigation of the Role of the Initial Workpiece Diameter in Deformation Control in Electromagnetic Sheet Forming
by Meng Chen, Hanchen Xiao, Zuoshuai Wang, Jianxun Wang, Chao Zuo and Wentie Yang
Electronics 2024, 13(19), 3828; https://doi.org/10.3390/electronics13193828 - 27 Sep 2024
Viewed by 355
Abstract
The initial workpiece diameter is one of the most fundamental process parameters in sheet metal forming, as it determines the resistance of the draw-in material flow. In the context of conventional deep drawing, its critical role has been clearly identified. In the context [...] Read more.
The initial workpiece diameter is one of the most fundamental process parameters in sheet metal forming, as it determines the resistance of the draw-in material flow. In the context of conventional deep drawing, its critical role has been clearly identified. In the context of electromagnetic sheet forming, however, its role has not yet been adequately addressed. This paper aims to clarify its role, by experimentally and numerically investigating the deformation behavior of circular sheet metal in electromagnetic forming. Various combinations of the initial diameter and discharge voltage were established to induce different deformation behaviors. It was found that adjusting the initial diameter can substantially change the forming height, shape, and thickness distribution by altering the draw-in, which suggests a great improvement in deformation controllability. In summary, this study demonstrates that the initial workpiece diameter could play critical role in deformation control in electromagnetic forming. Full article
(This article belongs to the Special Issue Pulsed Magnetic Fields and Its Applications)
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14 pages, 5427 KiB  
Article
Eddy Current Mechanism Model for Dynamic Magnetic Field in Ferromagnetic Metal Structures
by Chao Zuo, Zhipeng Lai, Zuoshuai Wang, Jianxun Wang, Hanchen Xiao, Wentie Yang, Pan Geng and Meng Chen
Electronics 2024, 13(18), 3772; https://doi.org/10.3390/electronics13183772 - 23 Sep 2024
Viewed by 509
Abstract
The degaussing process is crucial for ensuring magnetic protection in ships. It involves the application of oscillating and attenuating magnetic fields to eliminate residual magnetism in the ship’s structure. However, this process can lead to the generation of distorted magnetic fields within the [...] Read more.
The degaussing process is crucial for ensuring magnetic protection in ships. It involves the application of oscillating and attenuating magnetic fields to eliminate residual magnetism in the ship’s structure. However, this process can lead to the generation of distorted magnetic fields within the ship’s cabin, posing a potential threat to electronic equipment performance. Therefore, it is essential to have a comprehensive understanding of the dynamic magnetic field response in ship structures to develop effective degaussing systems. To address this need, this paper proposes an eddy current model for analyzing the dynamic magnetic field response in ferromagnetic metal structures. This model focuses on the role of eddy currents in shaping the magnetic field response and provides valuable insights into the underlying mechanisms. Using the proposed eddy current model, the effects of key system parameters such as thickness, conductivity, and the length-scale of the ship structure can be analytically investigated. This analysis helps in understanding how these parameters influence the dynamic magnetic field response and aids in the design and optimization of degaussing systems. The effectiveness and applicability of the proposed eddy current model are demonstrated through comprehensive investigations involving two simulation cases of varying complexity. The model accurately predicts the changing trends of the dynamic magnetic field response, as confirmed through finite element simulations. This validation highlights the model’s ability to reproduce simulation results accurately and its potential as a powerful tool for analyzing and optimizing dynamic magnetic field responses. In summary, the proposed eddy current model represents a significant advancement in the field. It provides a valuable theoretical framework for understanding and analyzing the dynamic magnetic field response in ferromagnetic metal structures. By offering insights into the underlying mechanisms and the influence of key parameters, this research contributes to the development of improved degaussing systems and enhances the overall magnetic protection capabilities of ships. Full article
(This article belongs to the Special Issue Pulsed Magnetic Fields and Its Applications)
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