Results 1 to 10 of about 9,673 (258)
Dynamic demagnetization experiment on China-Russia Eastern Gas Pipeline
You-qi chuyun, 2022 The residual magnetism produced during the construction and inspection of long-distance oil and gas pipelines can cause the magnetic blow of welding arc, which may affect the welding progress and quality of pipelines and even threaten their intrinsic ...
Wenbo XUAN +5 more
doaj +2 more sources
Irreversible demagnetization mechanism of permanent magnets during electromagnetic buffering
Defence Technology, 2021 The permanent magnets will be irreversibly demagnetized under high temperature and high velocity during the electromagnetic buffering. In this study, the magnetic field induced by eddy currents and the self-demagnetizing field of permanent magnet are ...
Zi-xuan Li +3 more
exaly +3 more sources
Ultrafast Dynamics of Demagnetization in FeMn/MnGa Bilayer Nanofilm Structures via Phonon Transport
Nanomaterials, 2022 Superdiffusive spin transport has been proposed as a new mechanism of ultrafast demagnetization in layered magnetic nanostructures and demonstrated experimentally.
Tianran Jiang +5 more
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Demagnetization Severity Detection in Permanent Magnet Synchronous Motors Based on Temperature Signal and Convolutional Neural Network [PDF]
SensorsTo address the difficulty of detecting demagnetization severity in permanent magnet synchronous motors (PMSMs), this paper proposes a demagnetization severity detection method based on temperature signal and Convolutional Neural Network (CNN). First, the
Zhiqiang Wang +5 more
doaj +2 more sources
Advances in Mechanical Engineering, 2021 For the phenomenon of rotor demagnetization of Permanent Magnet Synchronous Motor(PMSM), studying the dynamic modeling and analysis of demagnetization rotor.
Zhou Bifeng, Tang Guoning, Luo Yiping
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Energies, 2021 Safety is a critical feature for all passenger vehicles, making fail–safe operation of the traction drive system highly important. Increasing demands for traction drives that can operate in challenging environments over wide constant power speed ranges ...
Gilsu Choi
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Dynamic Modeling and Analysis of Demagnetizing Rotor of Permanent Magnet Synchronous Motor
Shock and Vibration, 2021 This study performs a dynamic modeling and analysis of the axial uniform demagnetization rotor of a motor to investigate the demagnetization peculiar for permanent magnet synchronous motor (PMSM).
Bifeng Zhou, Guoning Tang, Yiping Luo
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Energies, 2022 To address such challenges as an uncertain number of demagnetization poles of the permanent magnet synchronous motor (PMSM) and cases in which the fault cannot be located, this paper proposes a fault identification and location methodology based on the ...
Yinquan Yu +4 more
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Analytical Modeling and Analysis of Permanent-Magnet Motor with Demagnetization Fault
Sensors, 2022 Factors such as insufficient heat dissipation and excessively high temperature can easily lead to demagnetization of the PMs in permanent-magnet (PM) motors.
Cenwei Shi +3 more
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Machines, 2020 Neodymium-boron (NdFeB) permanent magnets (PMs) have been widely studied in the past years since they became the material of choice in permanent magnet synchronous machines (PMSMs).
Manel Krichen +5 more
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