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Magnetic-geared motors with high transmission torque density
COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering, 2015Purpose – Early magnetic-geared motors have a high transmission torque density. However, the torque due to the coil is low because the permanent magnets in the stator become a large magnetic resistance when the current is applied to the coil.
Noboru Niguchi, Katsuhiro Hirata
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Comparative Analysis of High Torque Density PM Machines
2018 XIII International Conference on Electrical Machines (ICEM), 2018High torque density PM machines have attracted more and more attention recently, especially for the low-speed, high-torque application. In this paper, three high torque density PM machines are analyzed and compared, namely 12-slot/10-pole SPM, 16-pole transverse flux PM and 12-slot/22-pole flux modulation PM machines, with the specification of 30 kNm ...
Kangfu Xie +3 more
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Energy-Efficient MRF-Clutch With Optimized Torque Density
Volume 1: Development and Characterization of Multifunctional Materials; Modeling, Simulation and Control of Adaptive Systems; Integrated System Design and Implementation, 2013The viscous losses at high rotational speeds in idle mode represent a major drawback for an energy-efficient operation of MRF brakes and clutches. In this paper, an innovative concept is presented that allows a complete torque-free idle mode of the mentioned actuators by the use of a MR-fluid control.
Dirk Güth +2 more
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A High Torque Density MEMS Magnetic Induction Machine
2001Most micro-scale electric and magnetic machines developed over the last decade lack the torque and power density to support many practical applications. The micro-scale magnetic induction machine reported here attempts to transcend this practicality barrier by offering a torque density exceeding 15% of that exhibited by macro-scale magnetic machines ...
H. Köşer +3 more
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Torque density comparison of axial and radial Halbach couplings
2016 IEEE Conference on Electromagnetic Field Computation (CEFC), 2016This digests presents the closed form 3-D analytical equations for an axial and radial Halbach rotor magnetic coupling. The closed form equations give insight into the upper torque density limits of NdFeB based magnetic devices. The performance of the axial and radial coupling is compared.
Li, Kang, Bird, Jonathan
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A Limited Angle Torque Motor Hybrid Structure to Improve Torque Density
The transactions of The Korean Institute of Electrical Engineers, 2022Jin-Yeong Shin +5 more
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The development of high torque density motor for an electric outboard
2015Electric outboard is becoming a popular option for boat propulsion in small boat for its positive environmental impacts, better user experience and low operating cost. The motor is one of the most important components of the outboard since it converts electric energy into mechanical energy.
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Density waves in the solar nebula: Diffential Lindblad torque
Icarus, 1986The differential torque exerted by Lindblad resonances on a perturbing object embedded in a two-dimensional nonself-gravitating disk with density, pressure and sound speed gradients is quantified. First-order corrections are made to account for Keplerian rotation and the presence of the gradients.
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A Torque-Controlled Robotic Wrist with High Torque Density and Embedded Sensing
2025 IEEE/ASME International Conference on Advanced Intelligent Mechatronics (AIM)Yi-Shian Tsai +2 more
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