Results 101 to 110 of about 3,140 (217)

An Analytical Study on the Magnetic Levitation System Using a Halbach Magnet Array [PDF]

Transactions of the Korean Society for Noise and Vibration Engineering, 2007
Typically, three types of levitation technologies are applied to magnetic levitation systems: electromagnetic suspension, electrodynamic suspension, and hybrid electromagnetic suspension. A Halbach array is a special arrangement of permanent magnets which augments the magnetic field on one side of the device while cancelling the field to near zero on ...
openaire   +1 more source

Optimal linear generator with Halbach array for harvesting of vibration energy during human walking

Advances in Mechanical Engineering, 2016
In IT business, the capacity of the battery in smartphone was drastically improved to digest various functions such as communication, Internet, e-banking, and entertainment.
Joonsoo Jun, Yujeong Shin, Seong-Jin Cho, Young-Wook Cho, Seung Hwan Lee, Jin Ho Kim   +5 more
doaj   +1 more source

Torque Calculation and Dynamical Response in Halbach Array Coaxial Magnetic Gears through a Novel Analytical 2D Model

Computation
Coaxial magnetic gears have piqued the interest of researchers due to their numerous benefits over mechanical gears. These include reduced noise and vibration, enhanced efficiency, lower maintenance costs, and improved backdrivability.
Panteleimon Tzouganakis, Vasilios Gakos, Christos Kalligeros, Christos Papalexis, Antonios Tsolakis, Vasilios Spitas   +5 more
doaj   +1 more source

Design Optimization and Comparative Study of Skewed Halbach-Array Magnets TORUS Axial-Flux Permanent Magnet Motors for Electric Vehicles

IEEE Access
The double-sided axial flux (TORUS) permanent magnet (PM) machine has been shown to be an efficient structure for electric vehicles (EVs). This paper introduces the combined techniques of skewed PMs and Halbach-array arrangement to improve the TORUS-type
Phuson Srikhumphun, Pattasad Seangwong, Jonggrist Jongudomkarn, Apirat Siritaratiwat, Nuwantha Fernando, Sakda Somkun, Pirat Khunkitti   +6 more
doaj   +1 more source

Torque characteristic analysis and measurement of axial flux-type non-contact permanent magnet device with Halbach array based on 3D analytical method

AIP Advances, 2017
This paper addresses the torque characteristic analysis of an axial flux-type non-contact permanent magnet device with a Halbach magnet array using a 3D analytical method based on transfer relations.
Gang-Hyeon Jang, Min-Mo Koo, Jeong-Man Kim, Jang-Young Choi   +3 more
doaj   +1 more source

Electromagnetic vibration energy harvesting using an improved Halbach array

This paper reports an electromagnetic vibration energy harvester using an improved Halbach array. A Halbach array is a specific arrangement of permanent magnets that concentrates the magnetic field on one side of the array while cancelling the field on ...
Beeby, S.P., Harris, N.R., Tudor, M.J., Zhu, Dibin   +3 more
core  

Performance Evaluation of a Halbach Permanent Magnet Axial Protection Bearing Under Vertical Magnetic Levitation Flywheel Rotor Drop

Lubricants
This study addresses the issues with traditional rolling protection bearings in vertical magnetic levitation flywheel energy storage systems (FESSs), which are prone to impact, wear, and temperature rise under abnormal conditions, such as drops.
Dengke Li, Jun Ye, Gang Chen, Lai Hu, Zixi Wang, Taishun Qian, Jiahao Zhang, Mengchen Zi, Chao Liang   +8 more
doaj   +1 more source

Comparative Analysis and Design Optimization of Ferrite-Based Surface PM Vernier Machines

Energies
This paper presents the results of a comprehensive investigation into the comparative analysis and design optimization of ferrite-based surface permanent magnet vernier machines (SPMVMs).
Gwan-Hui Jang, Abdur Rehman, Gilsu Choi
doaj   +1 more source

A slim microspeaker for smartwatches with a Halbach array magnetic circuit

AIP Advances
In recent years, slimmer designs have been preferred for wearable devices for the sake of comfort and wearability. Thus, the width of mobile microspeaker devices is a critical constraint for smartwatches. In this study, we propose a novel microspeaker that achieves a 26% reduction in width compared to conventional models with an improved sound pressure
Yeong-Hun Jeong, Ji-Hun Park, Dan-Ping Xu, Sang-Moon Hwang   +3 more
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Radial Halbach Magnetic Bearings [PDF]

Radial Halbach magnetic bearings have been investigated as part of an effort to develop increasingly reliable noncontact bearings for future high-speed rotary machines that may be used in such applications as aircraft, industrial, and land-vehicle power ...
Eichenberg, Dennis J., Gallo, Christopher A., Thompson, William K.   +2 more
core   +1 more source