Results 41 to 50 of about 746 (206)

A Study on Reduction of Cogging Torque and Magnet Usage through Intersect Magnet Consequent Pole Structure

open access: yesEnergies, 2022
Owing to the shortage of rare-earth magnetic materials, various methods are being examined to reduce the use of magnets. One of these is a consequent pole.
Si-Woo Song   +3 more
doaj   +1 more source

Pole shape design of ring winding axial flux permanent magnet used in a direct‐drive electric boat for cost‐efficient cogging torque alleviation

open access: yesIET Electric Power Applications, 2023
The recently introduced Ring Winding Axial Flux Permanent magnet Motor (RW‐AFPM) is inspired by the yokeless structure of Yokeless and Segmented Armature (YASA) AFPMs and the partitioned‐phases configuration of transverse flux motors.
Saber Gharehseyed   +3 more
doaj   +1 more source

Speed Ripple Reduction of Direct-Drive PMSM Servo System at Low-Speed Operation Using Virtual Cogging Torque Control Method

open access: yes, 2021
This paper presents a virtual cogging torque (VCT) control method to reduce the speed ripple of direct-drive permanent magnet synchronous machine (DD-PMSM) servo system under low-speed conditions.
Bu, Feifei   +6 more
core   +1 more source

Embryonal Paratesticular Rhabdomyosarcoma Masquerading as an Inguinal Hernia: A Case Report

open access: yesClinical Case Reports, Volume 14, Issue 6, June 2026.
ABSTRACT Embryonal paratesticular rhabdomyosarcoma can mimic benign inguinoscrotal conditions such as inguinal hernia. In children with persistent, painless scrotal masses, early cross‐sectional imaging and prompt radical inguinal orchiectomy with histopathological confirmation are essential.
Somaya Al Kiswani   +7 more
wiley   +1 more source

PMSM cogging torque reduction: Comparison between different shapes of magnet

open access: yes, 2012
International audienceIn most of the industrial applications, such as vehicular traction, when a Permanent Magnet Synchronous Motor (PMSM) can be used, a low cogging torque is required.
Claude Marchand   +9 more
core   +1 more source

Experimental study on cogging-torque reduction of transverse-flux motor with skewed armature cores

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2017
Transverse-flux motors are suitable for getting high torque density by increasing their number of poles owing to the independent coil design from the number of poles.
Yasuhito UEDA   +3 more
doaj   +1 more source

A Study on Core Skew Considering Manufacturability of Double-Layer Spoke-Type PMSM

open access: yesEnergies, 2021
The spoke-type permanent magnet synchronous motor (PMSM), which is a general ferrite magnetic flux-concentrated motor, has a low portion of reluctance torque at the total torque magnitude. Therefore, as a way to increase the reluctance torque, there is a
Dong-Woo Nam   +6 more
doaj   +1 more source

Study of Methods for Cogging Torque Reduction in Permanent Magnet Machines [PDF]

open access: yesProceedings of the 2015 4th International Conference on Computer, Mechatronics, Control and Electronic Engineering, 2015
To propose the methods for cogging torque reduction in permanent magnet machines, theoretical reasons of cogging torque are studied in this paper and the qualitative analysis is performed before quantitative calculation with finite-element method. And the effects of slot opening widths, unequal thickness magnets as well as pole-arc factors on cogging ...
ZhongYuan Yang, Dianning Wu
openaire   +1 more source

Molecular Photogearing for Controlling Rotary Motion at the Nanoscale

open access: yesChemPlusChem, Volume 91, Issue 4, April 2026.
Molecular gears capable of controlling and transmitting rotary motion at the nanoscale are indispensable for the construction of artificial molecular machines. In this concept, we discuss how molecular photogears featuring a propeller‐shaped motif attached to a light‐driven molecular motor offer new possibilities to perform these tasks with better ...
Enrique M. Arpa, Bo Durbeej
wiley   +1 more source

Projeto e análises de motores síncronos de ímãs permanentes internos com otimização do torque [PDF]

open access: yes, 2008
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Elétrica.O principal objetivo deste trabalho é contribuir com o estudo de motores síncronos de ímãs permanentes internos, de alta
Siguimoto, Celia Miwa
core  

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