Results 31 to 40 of about 1,004,315 (387)

Comparative study on equivalent models calculating magnetic force between permanent magnets [PDF]

open access: yesJournal of Intelligent Manufacturing and Special Equipment, 2020
Purpose – An appropriate equivalent model is the key to the effective analysis of the system and structure in which permanent magnet takes part. At present, there are several equivalent models for calculating the interacting magnetic force between ...
Yuyang Zhang   +6 more
doaj   +1 more source

MnBi thin films for high temperature permanent magnet applications

open access: yesAIP Advances, 2019
Thin films of ferromagnetic LTP-MnBi (Low Temperature Phase of MnBi) have been grown by magnetron sputtering onto quartz substrates. Two particular issues related to LTP-MnBi have been investigated: the strong influence of the growth temperature and the ...
M. Villanueva   +6 more
doaj   +1 more source

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.
Ferraris, Luca   +3 more
core   +1 more source

Improved analytical model for predicting the magnetic field distribution in brushless permanent-magnet machines [PDF]

open access: yes, 2002
A general analytical technique predicts the magnetic field distribution in brushless permanent magnet machines equipped with surface-mounted magnets. It accounts for the effects of both the magnets and the stator windings.
Chan, C.C., Howe, D., Zhu, Z.Q.
core   +2 more sources

High-temperature dependence of anomalous Ettingshausen effect in SmCo5-type permanent magnets

open access: yes, 2020
The anomalous Ettingshausen effect (AEE) in SmCo$_5$-type permanent magnets has been investigated in the high-temperature range from room temperature to around 600 K.
A. Miura   +8 more
semanticscholar   +1 more source

Evaluation of the magnetization direction effects on ferrite PM brushless fractional machines [PDF]

open access: yes, 2012
Permanent magnets are frequently adopted in small brushless machines for automotive applications. Normally anisotropic ferrites, but some research on bonded magnets is being carried on.
Ferraris, Luca   +3 more
core   +1 more source

Designing stellarators using perpendicular permanent magnets [PDF]

open access: yesNuclear Fusion, 2019
We have developed a fast method to design perpendicular permanent magnets for simplifying stellarator coils based on existing codes. Coil complexity is one of the main challenges for stellarators.
Caoxiang Zhu   +3 more
semanticscholar   +1 more source

Calculation of d- and q-axis inductances of PM brushless ac machines accounting for Skew [PDF]

open access: yes, 2005
A hybrid two-dimensional (2-D) finite-element/analytical technique is described for predicting the d-axis and q-axis inductances of permanent magnet (PM) brushless ac machines, with due account for the influence of skew.
Chen, Y.S., Howe, D., Zhu, Z.Q.
core   +1 more source

CURRENT SITUATION AND PROSPECTS OF PRODUCTION AND RESERVES OF PERMANENT MAGNETS OF RARE EARTHS: BRAZIL × WORLD [PDF]

open access: yesTecnologia em Metalurgia, Materiais e Mineração, 2012
Generating energy from renewable sources is not an easy task since it requires different types of technologies, which can add much cost to the system. For this reason, investment in research in this area can be an alternative for economic feasibility ...
Franciele Weschenfelder   +5 more
doaj   +1 more source

Influence of the amount of permanent-magnet material in fractional-slot permanent-magnet synchronous machines [PDF]

open access: yes, 2014
The efficiency of permanent-magnet (PM) synchronous machines with outer rotor and concentrated windings is investigated as a function of the mass of magnets used, keeping the power, volume, and mechanical air-gap thickness constant. In order to be useful
Sergeant, Peter, Van den Bossche, Alex
core   +2 more sources

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