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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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Torque Density Permanent Magnet Machine for Automotive Applications
7th IET International Conference on Power Electronics, Machines and Drives (PEMD 2014), 2014This paper presents work done on the analysis of a new permanent magnet machine topology using finite element in order to achieve high torque density specifically for an automotive application. Also different types of electric motors that are suitable for automotive applications are shown.
Y.A. Alamoudi +2 more
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Development of a compact wrist mechanism with high torque density
2012 IEEE/ASME International Conference on Advanced Intelligent Mechatronics (AIM), 2012This paper proposes a new wrist mechanism for robot manipulation. To develop multi-dof wrist mechanisms that can emulate human wrists, compactness and high torque density are the major challenges. Traditional wrist mechanisms consist of series of rotary motors that require gearing to amplify the output torque.
Cheng-Yu Chu, Jia-You Xu, Chao-Chieh Lan
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A Method for Improving Torque Density in FSCW PM Machines
2019 19th International Symposium on Electromagnetic Fields in Mechatronics, Electrical and Electronic Engineering (ISEF), 2019The method for improving torque density by suitable selection of stator teeth and tips width in Fractional-slot concentrated winding permanent magnet (FSCW PM) machines with similar slot and pole numbers was researched. A 12-slot/10-pole machine is chosen as an example, in which six schemes of tooth and tip widths were designed.
Aimeng Wang, Yi Tian
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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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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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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 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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High torque density PM motor for racing applications
2017 IEEE Energy Conversion Congress and Exposition (ECCE), 2017Referring to a 4-wheel drive Formula Student Electric vehicle, a fractional-slot synchronous permanent magnet machine has been designed. Torque density has been improved adopting outer rotor topology and lightweight materials. An ironless rotor with PMs placed in an Halbach array configuration allows reduced rotor inertia to be obtained.
Munaro M., Bianchi N., Meneghetti G.
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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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