Results 41 to 50 of about 210,752 (303)
Analysis of Torque Ripple of a Spoke-Type Interior Permanent Magnet Machine
Energies, 2020 This paper investigates the theoretical reasons behind the low torque ripple of a fractional-slot concentrated-winding (FSCW) spoke-type interior permanent-magnet (IPM) machine obtained via a genetic algorithm-based optimization. To better understand the
Guoyu Chu +3 more
doaj +1 more source
Analysis and damping techniques for torque ripple reduction in a 24-slot 16-pole fractional slot winding PMASynRel motor [PDF]
, 2022 The work deals with a 24-Slot 16-Pole Fractional Slot windings PMASynRel motor, with non-overlapped coils. The passage from distributed to concentrated windings produced a collective decrease of performance. In the 24/16 configuration, then, this loss is
Fusar, Riccardo
core
Torque Ripple Minimization Control Strategy in Synchronous Reluctance Machines
IEEE Open Journal of Industry Applications, 2022 Torque smoothness is an essential requirement for high-performance motor drive applications. Synchronous reluctance machines (SyRM) have high torque ripple due to non-linear magnetic circuit and saturation.
Anant K Singh +3 more
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An NUTSF at Sub-Region for Suppression of Torque Ripple in Switched Reluctance Motors
Applied Sciences, 2022 The conventional torque sharing function (TSF) control strategy in a switched reluctance motor (SRM) has higher torque ripple due to the weak torque tracking ability with an increase in speed.
Chaozhi Huang, Wensheng Cao, Junxin Xu
doaj +1 more source
IEEE Access, 2019 Brushless dc motors (BLDCMs) exhibit relatively large torque ripple due to the current pulsation during the commutation process. In this paper, first, the production mechanism of the commutation torque ripple is analyzed in detail, where the diode ...
Kai Liu, Zhiqiang Zhou, Wei Hua
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Neurovascular Contacts in the Pathophysiology of Neuralgic Amyotrophy: An Observational Study
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Neuralgic amyotrophy (NA) is a prevalent, monophasic, multifocal immune‐mediated neuropathy. A distinctive characteristic of the disease is the occurrence of nerve or fascicle constrictions and torsions (NA‐associated focal nerve lesions, NAFL). The pathophysiology underlying this phenomenon remains to be fully elucidated.
Johannes Fabian Holle +4 more
wiley +1 more source
A ripple-spreading genetic algorithm for the aircraft sequencing problem [PDF]
, 2011 When genetic algorithms (GAs) are applied to combinatorial problems, permutation representations are usually adopted. Asa result, suchGAsare often confronted with feasibility and memory-efficiency problems.
Di Paolo, Ezequiel A. +3 more
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Multimodal Optimization Algorithm for Torque Ripple Reduction in Synchronous Reluctance Motors
IEEE Access, 2022 An accurate analytical model is adopted to estimate the torque ripple of a synchronous reluctance motor (SynRM). Desired behavior of the torque ripple functionin this motor is obtained by changing the angles of one and two flux barriers per pole (FBs) in
Moein Farhadian +2 more
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Gravity‐Dependent Modulation of Downbeat Nystagmus: Insights From Velocity‐Storage Dysfunction
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Downbeat nystagmus varies with head position, a phenomenon termed gravity‐dependent modulation. We aimed to clarify its mechanism using a velocity‐storage model. Methods In 10 patients with downbeat nystagmus due to cerebellar disorders, we recorded eye movements at different pitch‐ and roll‐axis head positions.
Ji‐Hyung Park +5 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora +4 more
wiley +1 more source