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IEEE Transactions on Magnetics最新文献

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Proposal for Design Method of Shared Rotor to Improve Eddy Current Loss in SPM Type Magnetic Geared Motor
IF 2.1 3区 工程技术
IEEE Transactions on Magnetics Pub Date : 2024-12-02 DOI: 10.1109/TMAG.2024.3509898
Beom-Seok Byeon;Eui-Jong Park;Yong-Jae Kim
{"title":"Proposal for Design Method of Shared Rotor to Improve Eddy Current Loss in SPM Type Magnetic Geared Motor","authors":"Beom-Seok Byeon;Eui-Jong Park;Yong-Jae Kim","doi":"10.1109/TMAG.2024.3509898","DOIUrl":"https://doi.org/10.1109/TMAG.2024.3509898","url":null,"abstract":"When integrating a magnetic gear and a motor into a single unit, the shared rotor simultaneously incorporates permanent magnets used for the input-side rotor of the magnetic gear and those utilized in the motor. This design results in both components sharing the same rotor structure. This integration marks a critical juncture where the magnetic gear and motor unite into a single device. However, it has been observed that this area experiences significant losses due to the extensive use of permanent magnets, leading to high eddy current losses in the shared rotor. In addition, the iron core of the shared rotor contributes significantly to losses from iron losses in the magnetic gear section. Therefore, this article discusses various design approaches aimed at reducing losses occurring in the shared rotor. The design approach used methods to maintain the torque density of conventional magnetic gears while reducing the usage of permanent magnets and decreasing eddy current losses from the permanent magnets. In addition, to improve iron losses originating from the iron core of the shared rotor, the approach involved dividing the iron core into segments.","PeriodicalId":13405,"journal":{"name":"IEEE Transactions on Magnetics","volume":"61 2","pages":"1-4"},"PeriodicalIF":2.1,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143107163","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Scattering Invariant Mode Wave Propagation in 3-D Structure 三维结构中的散射不变模波传播
IF 2.1 3区 工程技术
IEEE Transactions on Magnetics Pub Date : 2024-12-02 DOI: 10.1109/TMAG.2024.3509512
Olivér Csernyava;József Pávó;Zsolt Badics
{"title":"Scattering Invariant Mode Wave Propagation in 3-D Structure","authors":"Olivér Csernyava;József Pávó;Zsolt Badics","doi":"10.1109/TMAG.2024.3509512","DOIUrl":"https://doi.org/10.1109/TMAG.2024.3509512","url":null,"abstract":"This study examines low-loss microwave (MW) propagation in random media represented by 3-D agroforest models using antenna-beam forming. Low-loss propagation is achieved by creating scattering invariant modes (SIMs), which are less affected by the statistical variation of the media than the regular beams used in radio wave communication techniques. The 3-D numerical analysis of the forest calculates the SIMs. A hybrid method based on numerical calculations and the Foldy-Lax approximation is used to obtain fast results in the numerical analysis of the computationally large 3-D problem. This approach makes it possible to create numerous results for building statistics for sensitivity analysis. The robustness of the SIMs is examined by varying the geometry of the vegetation model. The novelty in the current work is the application of a 3-D scattering structure for the investigation of SIM waveform propagation.","PeriodicalId":13405,"journal":{"name":"IEEE Transactions on Magnetics","volume":"61 1","pages":"1-4"},"PeriodicalIF":2.1,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142912530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Identification of an Arbitrary-Surface Harmonic Magnetic Model From Close Measurements 近距离测量中任意表面谐波磁模型的识别
IF 2.1 3区 工程技术
IEEE Transactions on Magnetics Pub Date : 2024-12-02 DOI: 10.1109/TMAG.2024.3510643
Gauthier Derenty-Camenen;Olivier Chadebec;Olivier Pinaud;Laure-Line Rouve;Steeve Zozor
{"title":"Identification of an Arbitrary-Surface Harmonic Magnetic Model From Close Measurements","authors":"Gauthier Derenty-Camenen;Olivier Chadebec;Olivier Pinaud;Laure-Line Rouve;Steeve Zozor","doi":"10.1109/TMAG.2024.3510643","DOIUrl":"https://doi.org/10.1109/TMAG.2024.3510643","url":null,"abstract":"Decreasing spherical harmonic functions are widely used to identify and extrapolate the magnetic field produced by various devices. These functions allow to represent the sources as equivalent multipoles whose order is associated with a specific spatial decreasing rate. However, this representation is not valid inside the Brillouin sphere, the smallest sphere enclosing the device. We introduce here the use of an alternative model to replace the spherical harmonic functions when the measurements are inside the Brillouin sphere. This representation corresponds to a harmonic basis of equivalent charges on a surface that reproduces the multipolar decomposition of the magnetic field outside the Brillouin sphere while being valid inside. We demonstrate here the ability of this model to identify and extrapolate the field from very close measurements.","PeriodicalId":13405,"journal":{"name":"IEEE Transactions on Magnetics","volume":"61 1","pages":"1-4"},"PeriodicalIF":2.1,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142912569","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Spinor Formulation of the Landau–Lifshitz–Gilbert Equation With Geometric Algebra Landau-Lifshitz-Gilbert方程的旋量几何表达式
IF 2.1 3区 工程技术
IEEE Transactions on Magnetics Pub Date : 2024-11-29 DOI: 10.1109/TMAG.2024.3509214
Kristjan Ottar Klausen;Snorri Ingvarsson
{"title":"Spinor Formulation of the Landau–Lifshitz–Gilbert Equation With Geometric Algebra","authors":"Kristjan Ottar Klausen;Snorri Ingvarsson","doi":"10.1109/TMAG.2024.3509214","DOIUrl":"https://doi.org/10.1109/TMAG.2024.3509214","url":null,"abstract":"The Landau–Lifshitz–Gilbert (LLG) equation for magnetization dynamics is recast into spinor form using the real-valued Clifford algebra (geometric algebra) of three-space. We show how the undamped case can be explicitly solved to obtain componentwise solutions, with clear geometrical meaning. Generalizations of the approach to include damping are formulated. The implications of the axial property of the magnetization vector are briefly discussed.","PeriodicalId":13405,"journal":{"name":"IEEE Transactions on Magnetics","volume":"61 1","pages":"1-5"},"PeriodicalIF":2.1,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142912567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Easy-Plane Alignment of Anisotropic Biofluid Crystals in a Magnetic Field: Implications for Rod Orientation 各向异性生物流体晶体在磁场中的易平面排列：对棒取向的影响
IF 2.1 3区 工程技术
IEEE Transactions on Magnetics Pub Date : 2024-11-27 DOI: 10.1109/TMAG.2024.3507612
Robert J. Deissler;Robert Brown
{"title":"Easy-Plane Alignment of Anisotropic Biofluid Crystals in a Magnetic Field: Implications for Rod Orientation","authors":"Robert J. Deissler;Robert Brown","doi":"10.1109/TMAG.2024.3507612","DOIUrl":"https://doi.org/10.1109/TMAG.2024.3507612","url":null,"abstract":"We study the orientation in a uniform magnetic field of rod-like anisotropic biofluid crystals with an easy plane that makes an oblique angle with the crystal’s c-axis. For a sufficiently strong field, these crystalline rods orient themselves, such that the crystal’s easy plane is parallel to the magnetic field, the rod’s direction being defined as the direction of the crystal’s c-axis. As the rod rotates about the crystal’s hard axis, there will, therefore, be a range of angles that the rod makes with the magnetic field. We detail this behavior by first providing the illustrations of hemozoin crystals at various orientations. These illustrations clearly demonstrate that the orientation angle that the crystalline rod makes with respect to the magnetic field varies from about 30° to 150°. We also derive an analytical expression for the probability density function (pdf) for the orientation angle. We find that the orientation angles are not uniformly distributed between the limits of 30° and 150°, but rather tend to cluster near these limits. This suggests experimental tests and addresses confusion about the rod orientation found in past literature. The relevance to other anisotropic biofluid crystals, such as those produced by gout, is also discussed.","PeriodicalId":13405,"journal":{"name":"IEEE Transactions on Magnetics","volume":"61 1","pages":"1-8"},"PeriodicalIF":2.1,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142912399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
TechRxiv: Share Your Preprint Research with the World! TechRxiv：与世界分享您的预印本研究成果！
IF 2.1 3区 工程技术
IEEE Transactions on Magnetics Pub Date : 2024-11-26 DOI: 10.1109/TMAG.2024.3504413
{"title":"TechRxiv: Share Your Preprint Research with the World!","authors":"","doi":"10.1109/TMAG.2024.3504413","DOIUrl":"https://doi.org/10.1109/TMAG.2024.3504413","url":null,"abstract":"","PeriodicalId":13405,"journal":{"name":"IEEE Transactions on Magnetics","volume":"60 12","pages":"1-1"},"PeriodicalIF":2.1,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10767877","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142713861","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Member Get-A-Member (MGM) Program 会员注册（MGM）计划
IF 2.1 3区 工程技术
IEEE Transactions on Magnetics Pub Date : 2024-11-26 DOI: 10.1109/TMAG.2024.3504412
{"title":"Member Get-A-Member (MGM) Program","authors":"","doi":"10.1109/TMAG.2024.3504412","DOIUrl":"https://doi.org/10.1109/TMAG.2024.3504412","url":null,"abstract":"","PeriodicalId":13405,"journal":{"name":"IEEE Transactions on Magnetics","volume":"60 12","pages":"1-1"},"PeriodicalIF":2.1,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10767875","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142713956","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
IEEE Transactions on Magnetics Institutional Listings 《IEEE磁学汇刊》
IF 2.1 3区 工程技术
IEEE Transactions on Magnetics Pub Date : 2024-11-26 DOI: 10.1109/TMAG.2024.3498614
{"title":"IEEE Transactions on Magnetics Institutional Listings","authors":"","doi":"10.1109/TMAG.2024.3498614","DOIUrl":"https://doi.org/10.1109/TMAG.2024.3498614","url":null,"abstract":"","PeriodicalId":13405,"journal":{"name":"IEEE Transactions on Magnetics","volume":"60 12","pages":"C4-C4"},"PeriodicalIF":2.1,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10767883","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142757811","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
IEEE Transactions on Magnetics Publication Information IEEE电磁学学报出版信息
IF 2.1 3区 工程技术
IEEE Transactions on Magnetics Pub Date : 2024-11-26 DOI: 10.1109/TMAG.2024.3498613
{"title":"IEEE Transactions on Magnetics Publication Information","authors":"","doi":"10.1109/TMAG.2024.3498613","DOIUrl":"https://doi.org/10.1109/TMAG.2024.3498613","url":null,"abstract":"","PeriodicalId":13405,"journal":{"name":"IEEE Transactions on Magnetics","volume":"60 12","pages":"C3-C3"},"PeriodicalIF":2.1,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10767884","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142757864","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
IEEE Transactions on Magnetics Institutional Listings 电气和电子工程师学会《磁学学报》机构列表
IF 2.1 3区 工程技术
IEEE Transactions on Magnetics Pub Date : 2024-11-26 DOI: 10.1109/TMAG.2024.3498652
{"title":"IEEE Transactions on Magnetics Institutional Listings","authors":"","doi":"10.1109/TMAG.2024.3498652","DOIUrl":"https://doi.org/10.1109/TMAG.2024.3498652","url":null,"abstract":"","PeriodicalId":13405,"journal":{"name":"IEEE Transactions on Magnetics","volume":"60 12","pages":"C4-C4"},"PeriodicalIF":2.1,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10767874","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142713923","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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