Matúš Mihalik, Zuzana Molčanová, Daniela Cehulová, Martin Vavra, Marian Mihalik
{"title":"Influence of chemical doping on magnetic characteristic of ErMn1−x Fe x O3 multiferroic system","authors":"Matúš Mihalik, Zuzana Molčanová, Daniela Cehulová, Martin Vavra, Marian Mihalik","doi":"10.1109/tmag.2024.3459815","DOIUrl":"https://doi.org/10.1109/tmag.2024.3459815","url":null,"abstract":"","PeriodicalId":13405,"journal":{"name":"IEEE Transactions on Magnetics","volume":"2 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142205020","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}
Joonas Vesa, Hajime Igarashi, Antero Marjamäki, Reda Elkhadrawy, Paavo Rasilo
{"title":"Resistivity Model for Soft Magnetic Composite Materials with Cauer Network Representation","authors":"Joonas Vesa, Hajime Igarashi, Antero Marjamäki, Reda Elkhadrawy, Paavo Rasilo","doi":"10.1109/tmag.2024.3458977","DOIUrl":"https://doi.org/10.1109/tmag.2024.3458977","url":null,"abstract":"","PeriodicalId":13405,"journal":{"name":"IEEE Transactions on Magnetics","volume":"5 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142205022","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}
Yingying Wu, Zden k Sofer, Muthumalai Karuppasamy, Wei Wang
{"title":"Room-temperature Ferroelectric Control of 2D Layered Magnetism","authors":"Yingying Wu, Zden k Sofer, Muthumalai Karuppasamy, Wei Wang","doi":"10.1109/tmag.2024.3458401","DOIUrl":"https://doi.org/10.1109/tmag.2024.3458401","url":null,"abstract":"","PeriodicalId":13405,"journal":{"name":"IEEE Transactions on Magnetics","volume":"27 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142205024","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}
Jiaxin Ding;Yaming Liu;Sijie Huang;Haocheng Su;Ligang Yao
{"title":"3-D Magnetic Field Mathematical Model Considering the Eccentricity and Inclination of Magnetic Gears","authors":"Jiaxin Ding;Yaming Liu;Sijie Huang;Haocheng Su;Ligang Yao","doi":"10.1109/TMAG.2024.3455796","DOIUrl":"10.1109/TMAG.2024.3455796","url":null,"abstract":"Eccentricity and inclination are common fault types in magnetic gears, serving as prerequisites for the stable transmission of cycloidal magnetic gears (CyMG) and nutation magnetic gears (NMGs). Eccentricity and inclination alter the permeance of the magnetic gear air gap, leading to the generation of complex harmonic magnetic fields within it. To clarify the modulation effects of eccentricity and inclination on the air gap magnetic field, and address the limitation of current 2-D magnetic field models, which fail to calculate the 3-D magnetic field distribution caused by magnetic gear inclination. This article presents a 3-D mathematical model for magnetic gears’ eccentricity and inclination, termed the permeance coefficient-based improved subdomain method (PC-ISM). First, this method computes the 3-D magnetic field of the coaxially facing magnetic gear. Then, by mapping it onto the 3-D magnetic field of the nonuniform air-gap magnetic gear pair using the magnetic permeance coefficient, it mitigates the challenge of calculating the 3-D magnetic field arising from eccentricity and inclination while preserving accuracy. The magnetic permeance coefficient serves not only as a 3-D magnetic field mapping for various magnetic gear setups but also as a descriptor of the modulation effect of nonuniform air gaps on the magnetic field. This article examines the magnetic field characteristics, including distribution, intensity, and order, along with the mechanical characteristics such as torque, torque ripple, and axial force, and verifies these through finite element simulation. The study found that both CyMG and NMG can convert the \u0000<inline-formula> <tex-math>$p_{text {pm}}$ </tex-math></inline-formula>\u0000th order fundamental magnetic field into the \u0000<inline-formula> <tex-math>$p_{text {pm}}pm 1$ </tex-math></inline-formula>\u0000th order harmonic magnetic field. Thus, to ensure stable transmission, the number difference of magnetic pole pairs must be 1. When the minimum air gap is constant, the average harmonic magnetic field intensity in the nutation air gap exceeds that in the cycloid air gap, indicating that the nutation angle enhances the harmonic magnetic field intensity. In the mechanical characteristics analysis, the maximum transmission torque of the NMG reaches 13.82 N\u0000<inline-formula> <tex-math>$cdot $ </tex-math></inline-formula>\u0000m, and the calculated volume torque density equals 189.90 kN\u0000<inline-formula> <tex-math>$cdot $ </tex-math></inline-formula>\u0000m/m3. At different input speeds, the output speed of magnetic gear 1 (MG1) quickly stabilizes, with a transmission ratio of −8.71 after stabilization.","PeriodicalId":13405,"journal":{"name":"IEEE Transactions on Magnetics","volume":"60 11","pages":"1-15"},"PeriodicalIF":2.1,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142205025","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}
Ehsan Akbari Sekehravani, Sami Barmada, Alessandro Formisano
{"title":"Modal Analysis for Induced Currents in Metallic Plates","authors":"Ehsan Akbari Sekehravani, Sami Barmada, Alessandro Formisano","doi":"10.1109/tmag.2024.3457151","DOIUrl":"https://doi.org/10.1109/tmag.2024.3457151","url":null,"abstract":"","PeriodicalId":13405,"journal":{"name":"IEEE Transactions on Magnetics","volume":"5 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142205040","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}
{"title":"Novel Wedge-Less Stator to Reduce Shaft Voltage in IPMSM for EV Propulsion Considering Manufacturability","authors":"Han-Joon Yoon, Chang Hyeon Wang, Jin Hwan Lee, Gwang-Rak Choi, Seok-Won Jung, Sang-Yong Jung","doi":"10.1109/tmag.2024.3457669","DOIUrl":"https://doi.org/10.1109/tmag.2024.3457669","url":null,"abstract":"","PeriodicalId":13405,"journal":{"name":"IEEE Transactions on Magnetics","volume":"44 1","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142205026","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}
{"title":"Calculation of Resistances and Inductances in Multi-Conductor Systems Including Solid and Litz Wires Using the 2-D Boundary Element Method","authors":"Edgar Berrospe-Juarez;Frédéric Sirois","doi":"10.1109/TMAG.2024.3456121","DOIUrl":"10.1109/TMAG.2024.3456121","url":null,"abstract":"Multi-conductor systems can be modeled as multi-port networks made of lumped parameters. In the general case, the computation of such parameters requires the knowledge of the electric and magnetic fields. During the last decades, the finite-element method (FEM) has been widely used to compute the field quantities. Due to the large number of degrees of freedom involved, the application of FEM is prohibitive in cases including a large number of conductors and when a frequency scan is required, which requires a mesh adapted to the frequencies of interest. In this article, the boundary element method (BEM) is instead explored. The BEM formulations of the 2-D magnetic-harmonic problems in multi-conductor systems made of solid and Litz wires are presented in this article. The proximity effects in the Litz wires are considered by means of a complex permeability. The voltages and currents are included in the mathematical formulation of the problem, from which the frequency-dependent resistances and inductances per unit length (p.u.l.) can be directly found. The approach proposed is fast, easy to use, and requires no post-processing steps.","PeriodicalId":13405,"journal":{"name":"IEEE Transactions on Magnetics","volume":"60 11","pages":"1-12"},"PeriodicalIF":2.1,"publicationDate":"2024-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142205041","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}