Results 31 to 40 of about 12,183 (299)

Effect of Crystallizer Electromagnetic Stirring on Solidification Organization and Segregation of Round Billets Q355NE Φ800 mm

open access: yesTeshugang, 2023
Taking a steel mill Φ800 mm round billet continuous casting machine as the research object, the influence of crystallizer electromagnetic stirring current and frequency on electromagnetic torque and Q355NE steel round billet equiaxed crystal rate and ...
Zhou Weiji   +4 more
doaj  

Influence of Introducing the Rotor MMF Harmonic on Torque Performance of Spoke Type Permanent Magnet Motor With FSCW

open access: yesIEEE Access, 2020
This article proposes a torque optimization method that introduces the rotor magnetomotive force (MMF) harmonics, aiming to increase the average torque without increasing the cogging torque and torque ripple.
Jiaxu Zhang, Bingyi Zhang, Guihong Feng
doaj   +1 more source

Design of multi‐phase permanent magnet synchronous motor with fractional‐slot windings for electromagnetic vibration reduction considering stator teeth modulation

open access: yesIET Electric Power Applications, 2023
A multi‐phase permanent magnet synchronous motor (PMSM) with fractional‐slot windings is proposed to reduce electromagnetic vibration and improve torque performance.
Zhiguang Liu   +4 more
doaj   +1 more source

Torque Density Improvement of a Low-Speed High-Torque Swirling Actuator Driven by Electromagnetic Radial Force With Integrated Mechanical Gears

open access: yesIEEE Open Journal of Industry Applications, 2023
The torque density improvement of a low-speed high-torque swirling actuator is presented in this article. The swirling actuator is driven by the electromagnetic radial force and integrated mechanical gears.
Lingyu Chen, Yusuke Fujii, Akira Chiba
doaj   +1 more source

Electromagnetic angular momentum in anisotropic media and Beth's torque

open access: yesPhysics Open, 2022
The interaction of radiation with material media is a very active area of research, in particular the interaction with new exotic materials. However, we find several controversies in this field, like the Abraham-Minkowski controversy, or the attribution of angular momentum to quasi-static fields.In the present work we show that besides the ...
J.A.E. Roa-Neri   +2 more
openaire   +2 more sources

Asynchronous performance analysis of a single-phase capacitor-start, capacitor-run permanent magnet motor [PDF]

open access: yes, 2005
This work presents a detailed analysis of the asynchronous torque components (average cage, magnet braking torque and pulsating) for a single-phase capacitor-start, capacitor-run permanent magnet motor.
Miller, T.J.E.   +5 more
core   +1 more source

A compare research on third harmonic current control for five-phase permanent magnet synchronous motor

open access: yesXibei Gongye Daxue Xuebao, 2021
The injection of a third harmonic current can improve the electromagnetic torque output of the five-phase permanent magnet synchronous motor. In this paper, constant copper consumption and constant maximum current are used as constraints, and the ...

doaj   +1 more source

MTPA-DTC efficiency optimization method for feeding system of pressure filter

open access: yesGong-kuang zidonghua, 2014
In order to improve actual operation efficiency of feeding system of pressure filter, an efficiency optimization method with the maximum torque per ampere applied in direct torque control was proposed.
ZHANG Ka, FANG Lei, CAO Xiaodong
doaj   +1 more source

Electromagnetic torques, precession and evolution of magnetic inclination of pulsars [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2015
We present analytic calculations of the electromagnetic torques acting on a magnetic neutron star rotating in vacuum, including near-zone torques associated with the inertia of dipole and quadrupole magnetic fields. We incorporate these torques into the rotational dynamics of a rigid-body neutron star, and show that the effects of the inertial torque ...
Zanazzi, J. J., Lai, Dong
openaire   +2 more sources

Effect of Objective Function Formulation on Static and Operating Parameters of a Switched Reluctance Motor After Optimization of Magnetic Circuit Shape

open access: yesAdvances in Electrical and Computer Engineering, 2018
The article presents a comparison of two optimization methods aimed at the linearization of electromagnetic torque on rotor position angle in a two-phase switched reluctance motor (SRM).
WROBEL, K., TOMCZEWSKI, K.
doaj   +1 more source

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