Results 241 to 250 of about 1,311,435 (291)

Fault-Tolerant Topologies with Halbach Array and PM-Free Multi-Stage Multi-Module Electric Machines for Electric Aircraft Propulsion

European Conference on Cognitive Ergonomics
Electrically propelled aircraft require electric machines which are compact and efficient at largely different operating conditions and with maximal fault tolerance.
Donovin D. Lewis, David R. Stewart, Matin Vatani, Oluwaseun A. Badewa, Ali Mohammadi, D. Ionel   +5 more
semanticscholar   +1 more source

A tubular linear machine with dual Halbach array

Engineering Computations, 2014
Purpose – Force output is extremely important for electromagnetic linear machines. The purpose of this study is to explore new permanent magnet (PM) array and winding patterns to increase the magnetic flux density and thus to improve the force output of electromagnetic tubular linear machines.
Liang Yan, Lei Zhang, Zongxia Jiao, Hongjie Hu, Chin-Yin Chen, I-Ming Chen   +5 more
openaire   +1 more source

Suppressing Leakage Magnetic Field in Wireless Power Transfer Using Halbach Array-Based Resonators

IEEE Antennas and Wireless Propagation Letters
Wireless power transfer has the potential to seamlessly power electronic systems, such as electric vehicles, industrial robots, and mobile devices. However, the leakage magnetic field is a critical bottleneck that limits the transferable power level, and
Yuichi Honjo, Cedric Caremel, Yoshihiro Kawahara, T. Sasatani   +3 more
semanticscholar   +1 more source

Quantitative Evaluation of Torque Contributions of Multiple Working Harmonics on Halbach Array Consequent-Pole PM Machine

IEEE/ASME transactions on mechatronics
This article presents a quantitative evaluation of torque contributions of the main-order and modulated magnetic field harmonics on consequent-pole permanent magnet machine (CPPMM) with Halbach array arrangement to reveal its torque enhancement theory ...
Ya Li, Qinglin Zhou, Shichuan Ding, J. Hang, Wei Li   +4 more
semanticscholar   +1 more source

A Cylindrical Halbach Array Magnetic Actuation System for Longitudinal Robot Actuation Across 2D Workplane

IEEE Robotics and Automation Letters
Magnetic actuation has been widely investigated for miniature robot control due to its wireless control capability. As a permanent magnetic (PM) actuation system, the Halbach array can provide strong and controllable magnetic fields with large motion ...
Hongzhe Sun, S. Cheng
semanticscholar   +1 more source

Piezoelectric Wireless Power Transfer Using a Halbach Array for the Internet of Implanted Things

IEEE Internet of Things Journal
Implanted devices are increasingly used in chronic disease monitoring, but face challenges in energy autonomy. This article presents a novel wireless power transfer (WPT) method for self-sustained medical implants using Halbach array-based magnetic ...
Hailing Fu, George Gibson, Zhuowen Liu, Boli Chen, Maobin Lu, Chen Chen, Dong Jiang, N. Chrysochoidis, Fang Deng   +8 more
semanticscholar   +1 more source

Modelling and Analysis of the Halbach Array Magnets

2019 11th International Symposium on Advanced Topics in Electrical Engineering (ATEE), 2019
The objective of this paper is the implementation through numerical modelling of Halbach permanent magnets for the determination of the optimum magnetization directions in order to obtain a uniform magnetic field around the set of Halbach permanent magnets. For this study the magnetic induction distribution, magnetic field intensity and current density
Claudia Pacurar, Vasile Topa, Adina Giurgiuman, Calin Munteanu, Claudia Constantinescu, Sergiu Andreica, Marian Gliga   +6 more
openaire   +1 more source

The influence mechanism of Halbach array magnetic field control on discharge channels in EDM

Physica Scripta
The use of magnetic field to actively control Electrical Discharge Machining(EDM) can effectively improve the problems of low material removal rate and poor surface quality, but due to the limitation of materials, the magnetic induction intensity of ...
Zhiwei Qiu, Jiajing Tang, Zhengkai Li, Mulong Yin, Weiye Peng   +4 more
semanticscholar   +1 more source

Nonlinear Model for Halbach Array Axial Flux Permeant Magnet Motor in Stator and Rotor Reference Frames Based on Harmonic Modeling Technique

IEEE transactions on magnetics
This article presents nonlinear models based on the harmonic modeling (HM) technique for Halbach array AFPMM in Cartesian coordinate, where the stator winding is a dual three-phase winding.
Qiong-Ying Li, Conggan Ma, Fa Gao
semanticscholar   +1 more source

Polygonal Halbach Array for Low-Field Portable MRI

ISMRM Annual Meeting
Motivation: The cross-section of layered Halbach arrays should be versatile for performance optimizations and to accommodate different applications for dedicated MRI. However, it has not yet been systematically investigated. Goal(s): To develop a formula for magnet polarizations in polygonal Halbach arrays for performance optimization.
Anieyrudh R, Bernhard Blümich, Shao Ying HUANG   +2 more
openaire   +1 more source