Results 31 to 40 of about 29,205 (261)

Optimal Design of Axial Flux Permanent Magnet Synchronous Motor for Electric Vehicle Applications Using GAand FEM [PDF]

Journal of Electrical and Computer Engineering Innovations, 2015
Axial Flux Permanent Magnet (AFPM) machines are attractive candidates for Electric Vehicles (EVs) applications due to their axial compact structure, high efficiency, high power and torque density.
M. Ahmadi Darmani, H. Hooshyar
doaj   +1 more source

High-Torque Density Design of Small Motors for Automotive Applications with Double Axial-Air-Gap Structures

Energies, 2022
This paper describes the results of studies on higher torque density of automotive auxiliary motors based on electromagnetic field analysis. Dual stator axial-gap PM motors achieve higher torque density than radial-gap motors in a flat motor shape ...
Akihisa Hattori, Toshihiko Noguchi, Hiromu Kamiyama   +2 more
doaj   +1 more source

A Novel Magnetic Coupling Configuration for Enhancing the Torque Density [PDF]

2020 23rd International Conference on Electrical Machines and Systems (ICEMS), 2020
This paper introduces a novel magnetic coupling (MC) topology, which is able to achieve significant torque density values by adding a limited amount of extra permanent magnets (PMs). Indeed, the proposed MC architecture, namely enhanced magnetic coupling (EMC), includes both axial and radial concepts in the same structure. In particular, one radial and
Akcay, Yusuf, Giangrande, Paolo, Galea, Michael   +2 more
openaire   +2 more sources

Design and experimental evaluation of a multi-drum magnetorheological brake with side-set dual-coil

Alexandria Engineering Journal
Torque density, torque range and response time are the problems to be solved urgently in the field of magnetorheological (MR) transmission. To improve the torque, the most frequently used techniques are increasing the effective area and magnetic field ...
Jie Wu, Weiguo Kong, Yuming Huang, Hao Huang   +3 more
doaj   +1 more source

Impact of Flux-Modulated Rotor Design on Special Flux Density Harmonics in PS-DSPM for Cogging Torque Minimization

Journal of Applied Science and Engineering
High cogging torque caused by a fluctuating magnetic flux distribution in the partitioned stator doubly salient permanent magnet machines (PS-DSPM), due to their double air gap design, limits their application despite excellent torque density ...
Wilaiphorn Nokklang, Pattasad Saengwong, Apirat Siritaratiwat, Warat Sriwannarat   +3 more
doaj   +1 more source

Spin-Transfer Torque Switching at Ultra Low Current Densities

MATERIALS TRANSACTIONS, 2015
The influence of the tantalum buffer layer on the magnetic anisotropy of perpendicular Co-Fe-B/MgO based magnetic tunnel junctions is studied using magneto-optical Kerr-spectroscopy. Samples without a tantalum buffer are found to exhibit no perpendicular magnetization.
Leutenantsmeyer, Johannes Christian, Zbarsky, Vladyslav, von der Ehe, Marvin, Wittrock, Steffen, Peretzki, Patrick, Schuhmann, Henning, Thomas, Andy, Rott, Karsten, Reiss, Günter, Kim, Tae Hee, Seibt, Michael, Muenzenberg, Markus   +11 more
openaire   +4 more sources

Analysis and Optimal Design of Hybrid Magnetic Circuit Reluctance Direct Drive Motor

IEEE Access
Reluctance direct-drive motors have become a hot research topic in recent years due to their high torque density, therefore, this paper proposes a novel hybrid magnetic circuit reluctance direct drive motor (HMRM) to meet the requirements of high torque ...
Fuqiang Wang, Baoquan Kou, Lu Zhang, Changchuang Huang   +3 more
doaj   +1 more source

Design Aspects of Conical Coaxial Magnetic Gears

Energies, 2023
In this paper, a new design of a conical coaxial magnetic gear was proposed. Conical magnetic gears are considered a logical link between the radial- and axial-field coaxial designs.
Valentin Mateev, Miglenna Todorova, Iliana Marinova   +2 more
doaj   +1 more source

Residual tail twisting in ascidian larvae is stabilized by asymmetric myofibrils that resist bilateral symmetry restoration

FEBS Letters, EarlyView.
Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure, Misaki K. Nishio, Satoru Okuda, Kohji Hotta   +3 more
wiley   +1 more source

Improving Speed Characteristics of High-Torque-Density Motors for Physical Human–Robot Interaction Using an Independent Three-Phase Winding Structure

Actuators
Recently, due to the decrease in labor force, increase in labor costs, and the desire for improved quality of life, research on robots has been actively conducted to address these issues.
Junghwan Park, Handdeut Chang
doaj   +1 more source