Results 11 to 20 of about 170,878 (300)

Design and comparison of dual‐stator axial‐field flux‐switching permanent magnet motors for electric vehicle application

open access: yesIET Electrical Systems in Transportation, 2023
In this article, three dual‐stator axial field flux‐switching permanent magnet (DS‐AFFSPM) topologies are selected, designed, and analysed in order to determine the most effective structure electric vehicle (EV) application based on torque density, power
Fariba Farrokh   +3 more
doaj   +1 more source

A new magnetic-field modulated machine with compound-structure magnets of spoke PMs and Halbach PMs

open access: yesAIP Advances, 2023
To increase the airgap flux density, this paper proposes a new magnetic-field-modulated permanent magnet (FMPM) machine. The proposed FMPM machine has the compound magnets in the rotor, which is composited by the spoke PMs (SPM) and Halbach PMs (HPM ...
Fangfang Bian   +3 more
doaj   +1 more source

The baroclinic secondary instability of the two-dimensional shear layer [PDF]

open access: yes, 2000
The focus of this study is on the numerical investigation of two-dimensional, isovolume, high Reynolds and Froude numbers, variable-density mixing layers. Lagrangian simulations, of both the temporal and the spatial models, are performed. They reveal the
Altman   +24 more
core   +3 more sources

High-Density 1R/1W Dual-Port Spin-Transfer Torque MRAM

open access: yesMicromachines, 2022
Spin-transfer torque magnetic random-access memory (STT-MRAM) has several desirable features, such as non-volatility, high integration density, and near-zero leakage power.
Yeongkyo Seo, Kon-Woo Kwon
doaj   +1 more source

Iron loss in permanent-magnet brushless AC machines under maximum torque per ampere and flux weakening control [PDF]

open access: yes, 2002
The airgap flux density distribution, flux density loci in the stator core, and the associated iron loss in two topologies of brushless AC motor, having a surface-mounted magnet rotor and an interior-mounted magnet rotor, respectively, are investigated ...
Chen, Y.S., Howe, D., Zhu, Z.Q.
core   +1 more source

Energy-efficient domain wall motion governed by the interplay of helicity-dependent optical effect and spin-orbit torque [PDF]

open access: yes, 2019
Spin-orbit torque provides a powerful means of manipulating domain walls along magnetic wires. However, the current density required for domain wall motion is still too high to realize low power devices.
Hehn, Michel   +8 more
core   +2 more sources

Optimal Design of Axial Flux Permanent Magnet Synchronous Motor for Electric Vehicle Applications Using GAand FEM [PDF]

open access: yesJournal of Electrical and Computer Engineering Innovations, 2015
Axial Flux Permanent Magnet (AFPM) machines are attractive candidates for Electric Vehicles (EVs) applications due to their axial compact structure, high efficiency, high power and torque density.
M. Ahmadi Darmani, H. Hooshyar
doaj   +1 more source

An Axial Magnetic Gear With Improved Torque Density and Reduced Cogging Torque

open access: yesIranian Journal of Electrical and Electronic Engineering, 2021
A new axial magnetic gear (AMG) with enhanced torque density and reduced cogging torque is proposed in this paper. In the new structure, the direction and width of permanent magnets in high-speed rotor are changed and permanent magnets are removed from ...
J. Sepaseh, N. Rostami, M. R. Feyzi
doaj  

High-Torque-Density Low-Cost Magnetic Gear Utilizing Hybrid Magnets and Advanced Materials [PDF]

open access: yes, 2019
Two major challenges of existing high-performance magnetic gears are: (i) High content of rare-earth permanent magnets which results in high cost as well as price fluctuation; (ii) Conflict between mechanical and electromagnetic performances, especially ...
Al-Qarni, Ali Hussain   +2 more
core   +2 more sources

Torque characteristics of high torque density partitioned PM consequent pole flux switching machines with flux barriers

open access: yesCES Transactions on Electrical Machines and Systems, 2020
Unique double salient structure of Permanent Magnet Flux Switching Machines (PMFSM) with both Concentrated Armature Winding (CAW) and Permanent Magnet (PM) on stator attract researcher's interest for high speed brushless application when high torque ...
Wasiq Ullah   +3 more
doaj   +1 more source

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