Results 31 to 40 of about 428 (171)
IEEE AccessIn Interior Permanent Magnet Synchronous Motor (IPMSM) for railway traction applications, irreversible demagnetization of permanent magnets can lead to severe degradation in motor performance and even system failure.
Wonjun Jeong +3 more
doaj +1 more source
The Demagnetization Phenomenon in PM Machines: Principles, Modeling, and Design Considerations
IEEE 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
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Advanced Robotics Research, EarlyView.Permanent magnet putty (PMP) integrates high‐coercivity NdFeB particles with a dynamic polyborosiloxane–Ecoflex matrix, achieving rapid self‐healing (90% mechanical recovery in 10 s) and magnetic recovery within 20 min. With twice the sensitivity of commercial putties, PMP enables precise 5–30 N force detection and discrimination between pressing and ...
Ruotong Zhao +5 more
wiley +1 more source
Smart Bioinspired Material‐Based Actuators: Current Challenges and Prospects
Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.This work gathers, in a review style, an extensive and comprehensive literature overview on the development of autonomous actuators based on synthetic materials, bringing together valuable knowledge from several studies. Furthermore, the article identifies the fundamental principles of actuation mechanisms and defines key parameters to address the size
Alejandro Palacios +4 more
wiley +1 more source
AIP Advances, 2019 Thermally activated relaxation over energy barriers concurrently related to local properties and interparticle interactions constitutes a major contribution to both the coercivity and the applied field frequency dependence of that quantity.
Enrique Navarro +7 more
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Carbon Energy, EarlyView.Beyond the hype surrounding the self‐healing properties of gallium‐based liquid metals (Ga‐LMs), this perspective critically examines their functional roles in metal‐ion batteries, highlighting both their underlying merits and the often‐overlooked challenges, including non‐representative design and testing configurations, performance overestimations ...
Turly P. P. Sumanasekara +7 more
wiley +1 more source
Ultrafast Transitions in X‐Ray Irradiated Solids
Contributions to Plasma Physics, EarlyView.ABSTRACT In this review, we present current developments on modeling ultrafast transitions in solids triggered by intense, atto‐ to femtosecond pulses from X‐ray free electron lasers. This specific irradiation regime requires dedicated simulation tools based on theoretical and computational methods, involving the elements of classical and quantum ...
Sebastião Antunes +3 more
wiley +1 more source
Machines, 2023 Permanent magnet synchronous generators (PMSGs) with high output density per unit volume are becoming widespread in wind-power generation systems. Among them, spoke-type PMSGs are more challenging to magnetize than other PMSGs, owing to their structural ...
Dong-Ho Kim +4 more
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Advanced Theory and Simulations, Volume 9, Issue 6, June 2026.This study evaluates an integrated direct‐indirect oil cooling system for electric motor thermal management under steady‐state overload conditions. The results show that the combined cooling architecture improves heat removal from the winding, stator, and housing while balancing pressure drop penalties.
Tai Duc Le +6 more
wiley +1 more source
Zanco Journal of Pure and Applied Sciences, 2019 In recent years Line Start Permanent Magnet (LSPM) motor has attracted a lot of attention thanks to many advantages, such as high efficiency, high power factor, and high power density. In this motor, at the start, the risk of irreversible demagnetization
Farshid Mahmouditabar, Abolfazl Vahedi
doaj +1 more source