Results 11 to 20 of about 704,198 (293)

Manganese-based Permanent Magnets

open access: yesMetals, 2015
There is a significant gap between the energy product, BH, where B is the magnetic flux density and H is the magnetic field strength, of both the traditional ferrite and AlNiCo permanent magnets of less than 10 MGOe and that of the rare earth magnets of ...
Ian Baker
doaj   +2 more sources

Novel permanent magnet brushless machines having segmented Halbach array [PDF]

open access: yes, 2013
Permanent magnet brushless machines having Halbach array exhibit a number of attractive features. Therefore, they have been increasingly applied to different market sectors, including aerospace, industrial, domestic, renewable, and healthcare, etc.
Shen, Yang
core   +6 more sources

Development of a torsional vibration suppression device using permanent magnets

open access: yesNihon Kikai Gakkai ronbunshu, 2021
Dual mass flywheel (DMF) dampers are conventionally used for torsional vibration suppression in automobile powertrains. The torsional vibration in powertrains has increased in recent years owing to the widespread downsizing of internal combustion engines
Tomohiro MIYABE   +3 more
doaj   +1 more source

Characterization of Permanent Magnet Magnetization [PDF]

open access: yesIEEE Transactions on Magnetics, 2017
The performances of electrical machines highly depend on the behavior of materials, such as steel, copper, and permanent magnet. This paper focuses on permanent magnets whose magnetization must be precisely known. Thus a non-destructive approach which includes a combination of experiments and inverse problem, using the magnetostatic moment method, is ...
Laure Arbenz   +4 more
openaire   +2 more sources

Design optimization of permanent magnet actuators. [PDF]

open access: yes, 1992
This study describes the design optimization of permanent actuators, of both rotary and linear topologies. Parameter scanning, constrained single and multi-criterion optimization techniques are developed, with due emphasis on the efficient ...
Widdowson, G P
core   +6 more sources

The possibility of using permanent magnets without rare earth elements in electric motors

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2022
THE PURPOSE. The use of rare earth permanent magnets in electric motors has become commonplace. The use of rare earth magnets in electric motors, such as neodymium (NdFeB), gives a significant increase in the characteristics of the electric motor.
A. A. Маiorov, A. R. Safin
doaj   +1 more source

Rare Earth Free Permanent Magnets

open access: yes, 2014
REFREEPERMAG is an EU-funded project to develop a new generation of novel materials without rare earths or platinum for high performance permanent magnets as a replacement of the existing ones mainly based on rare-earths.
Reichel, L.   +8 more
core   +4 more sources

Optimized design of permanent magnet for disk permanent magnet governor

open access: yesScientific Reports, 2023
AbstractTo research the magnetic field and mechanical characteristics of the permanent magnet governor, the static magnetic field of the sector permanent magnet is analyzed by the molecular current method in the permanent magnet governor. The magnetic flux distribution is acquired at any spatial position.
Manman Xu   +5 more
openaire   +3 more sources

Hysteresis Loss in NdFeB Permanent Magnets in a Permanent Magnet Synchronous Machine

open access: yesIEEE Transactions on Industrial Electronics, 2022
Most permanent magnet (PM) loss studies consider only eddy current loss and neglect hysteresis. In this article, the hysteresis behavior of two NdFeB PM grades with different magnetic properties is assessed when applied in a PMSM. Data from vibrating sample magnetometer measurements and hysteresis modeling are used as a base.
Dmitry Egorov   +6 more
openaire   +4 more sources

PM fractional machines adopting bonded magnets: effect of different magnetizations on the energetic performance [PDF]

open access: yes, 2012
The adoption of Permanent Magnets in small brushless machines for automotive applications is becoming frequent. Some research on bonded magnets is being carried on to substitute the ferrites.
P. Ferraris   +8 more
core   +1 more source

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