Results 31 to 40 of about 768,970 (347)
Effects of electrical charging on the mechanical Q of a fused silica disk [PDF]
, 2003 We report on the effects of an electrical charge on mechanical loss of a fused silica disk. A degradation of Q was seen that correlated with charge on the surface of the sample.
Harry, Gregory M. +4 more
core +2 more sources
IEEE Access, 2018 An improved structure for axial-flux eddy current couplings with combined rectangleshaped magnets is proposed to minimize cogging torque without sacrificing torque density. Then, a novel analytical electromagnetic-thermal model, which takes the change of
Di Zheng +5 more
doaj +1 more source
Energies, 2020 We designed and analyzed an interior permanent magnet synchronous motor (IPMSM) to prevent irreversible demagnetization of the permanent magnets (PMs). Irreversible demagnetization of NdFeB PMs mainly occurs due to high temperature, which should thus be ...
Jae-Woo Jung +3 more
doaj +1 more source
Observed and modeled surface eddy heat fluxes in the eastern Nordic Seas [PDF]
, 2012 Large-scale budget calculations and numerical model process studies suggest that lateral eddy heat fluxes have an important cooling effect on the Norwegian Atlantic Current (NwAC) as it flows through the Nordic Seas.
Isachsen, P. E. +2 more
core +1 more source
IEEE transactions on industrial electronics (1982. Print), 2020 This paper investigates and compares the eddy current loss induced in permanent magnet (PM) in both rotor-PM flux-switching (RPM-FS) machines and stator-PM flux-switching (SPM-FS) machines. Based on the field modulation principle, the harmonic components
P. Su +5 more
semanticscholar +1 more source
AIP Advances, 2017 This paper describes the eddy current loss analysis of a double-sided cored slotless-type permanent magnet linear synchronous generator using the space harmonic method.
Gang-Hyeon Jang +4 more
doaj +1 more source
Multi-objective optimal design of permanent magnet eddy current retarder based on NSGA-II algorithm
Energy Reports, 2022 As a new type of vehicle auxiliary braking device, permanent magnet eddy current retarder has a wide application prospect. In this paper, the linear layer analysis method and non-dominated sorting genetic algorithm-II (NSGA-II) are combined to optimize ...
Bowen Niu, Dazhi Wang, Pengyi Pan
doaj +1 more source
IEEE Access, 2020 To improve the output torque in permanent magnet (PM) eddy current couplings, a new structure based on harmonics injection into the magnet optimization theory is proposed.
Di Zheng, Xifeng Guo
doaj +1 more source
Classical eddy current losses in soft magnetic composites [PDF]
Journal of Applied Physics, 2013 This paper deals with the problem of loss evaluation in Soft Magnetic Composites (SMCs), focusing on the classical loss component. It is known that eddy currents can flow in these granular materials at two different scales, that of the single particle (microscopic eddy currents) and that of the specimen cross-section (macroscopic eddy currents), the ...
Appino, Carlo +5 more
openaire +3 more sources
Analytical prediction of rotor eddy current loss due to stator slotting in PM machines [PDF]
, 2001 Paper presented during the 2010 IEEE Conference, Electrical Machines and Systems, 2001. ICEMS 2001, Shenyang . The original publication is available at http://research.ee.sun.ac.za/emr/files/u1/2010-ECCE-Wills.pdf and also http://ieeexplore.ieee.org/xpls/
Kamper, Maarten J., Wills, Dominic A.
core +1 more source