Results 21 to 30 of about 128,916 (345)
Efficient Nanostructuring of Isotropic Gas-Atomized MnAl Powder by Rapid Milling (30 s)
Engineering, 2020 An unprecedentedly short milling time of 30 s was applied to gas-atomized MnAl powder in order to develop permanent magnet properties and, in particular, coercivity. It is shown that such a short processing time followed by annealing results in efficient
J. Rial, E.M. Palmero, A. Bollero
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Development of a torsional vibration suppression device using permanent magnets
Nihon 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
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The possibility of using permanent magnets without rare earth elements in electric motors
Известия 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
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Comparative Study on Variable Flux Memory Machines With Different Arrangements of Permanent Magnets
IEEE Access, 2020 Compared with conventional permanent magnet synchronous motor, variable flux memory motor (VFMM) possesses the advantage of adjusting the magnetization state online.
Ying Xie, Zhaoyang Ning, Zexin Ma
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Effect of optimal torque control on rotor loss of fault-tolerant permanent-magnet brushless machines [PDF]
, 2002 A faulted phase in a fault-tolerant permanent-magnet brushless machine can result in significant torque ripple. However, this can be minimized by using an appropriate optimal torque control strategy.
Atallah, K. +3 more
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Electrical engineering & Electromechanics, 2022 Introduction. In spite of many advantages of radial flux permanent magnet brushless DC motors it suffers from the distinct disadvantage of high cogging torque. The designer must emphasize to reduce the cogging torque during the design stage.
T. H. Panchal, A. N. Patel, R. M. Patel
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APL Materials, 2018 Ferromagnetic MnAl (L10-MnAl phase) ultrathin films with thickness varying from 1 to 5 nm have been epitaxially grown on a GaAs (001) substrate. A coercivity above 8 kOe has been obtained with no need of a buffer layer by tuning the sample preparation ...
C. Navío +6 more
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Comparative study on equivalent models calculating magnetic force between permanent magnets [PDF]
Journal 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
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MnBi thin films for high temperature permanent magnet applications
AIP 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
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PM fractional machines adopting bonded magnets: effect of different magnetizations on the energetic performance [PDF]
, 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
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