Results 1 to 10 of about 3,049,338 (225)

Dynamic demagnetization experiment on China-Russia Eastern Gas Pipeline

open access: yesYou-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   +3 more sources

Dynamic Modeling and Analysis of Demagnetizing Rotor of Permanent Magnet Synchronous Motor [PDF]

open access: yesShock 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
doaj   +3 more sources

Demagnetization research on PMs in the Halbach magnetized pulsed alternator

open access: yesCES Transactions on Electrical Machines and Systems, 2019
Demagnetization behavior of Halbach magnetized compensated pulsed alternator (CPA) is studied by using finite element method (FEM) under the different demagnetization factors in this paper.
Songlin Wu   +3 more
doaj   +3 more sources

Impact of Chirality on the Dynamic Susceptibility of Concentric Nanotori [PDF]

open access: yesNanomaterials
This study investigates the influence of chirality on the dynamic susceptibility of concentric nanotori via micromagnetic simulations. The aim is to analyze the ferromagnetic resonance characteristics of coupled nanotori structures and compare them ...
Ulises Guevara   +7 more
doaj   +2 more sources

Magnetodynamics in exchange coupled composite magnets [PDF]

open access: yesScientific Reports
Tailoring magnetization using all-optical methods in exchange-coupled composite magnets holds significant scientific potential for advancing ultrafast magneto-optic devices.
Richa Bhardwaj   +11 more
doaj   +2 more sources

Orbital Coupling and Spin Textures of Fe/Pd Thin Films Grown on Si Substrate with High Magnetic Fields [PDF]

open access: yesAdvanced Science
The crystallization and magnetic properties strongly depend on the orbital coupling and spin polarization of magnetic materials. Here, the enhancement and freeze of coupling and polarization of atomic orbitals achieved by high magnetic fields are ...
Xuefeng Wu   +6 more
doaj   +2 more sources

Femtosecond charge and spin dynamics in a Co50Pt50 alloy [PDF]

open access: yesStructural Dynamics
The use of advanced x-ray sources plays a key role in the study of dynamic processes in magnetically ordered materials. The progress in x-ray free-electron lasers enables the direct and simultaneous observation of the femtosecond evolution of electron ...
Martin Pavelka   +21 more
doaj   +2 more sources

Dynamics modeling and analysis of the permanent-magnet synchronous motors bearing-rotor-magnetic field under rotor demagnetize

open access: yesAdvances 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
doaj   +1 more source

The Demagnetization Phenomenon in PM Machines: Principles, Modeling, and Design Considerations

open access: yesIEEE Access, 2023
Permanent Magnet (PM) machines have attracted much attention due to their high power-torque density, high efficiency, high dynamic response performance, high power factor, and simple structure.
Farshid Mahmouditabar   +2 more
doaj   +1 more source

Performance Degradation of Surface PMSMs with Demagnetization Defect under Predictive Current Control

open access: yesEnergies, 2019
To control the current of a surface mounted permanent magnet synchronous machine fed by a two-level voltage source inverter, a large variety of control algorithms exists.
Lynn Verkroost   +4 more
doaj   +1 more source

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