Study on step-out torque behavior of cylindrical magnetic gear with plane rectangular coil

2019 ◽  
Vol 59 (2) ◽  
pp. 639-646
Author(s):  
Yuya Sekijima ◽  
Yoshinori Ando ◽  
Iwanori Murakami
Keyword(s):  
Magnetic Gear ◽  
Torque Behavior

Performance analysis of magnetic gear with Halbach array for high power and high speed

2020 ◽  
Vol 64 (1-4) ◽  
pp. 959-967
Author(s):  
Se-Yeong Kim ◽  
Tae-Woo Lee ◽  
Yon-Do Chun ◽  
Do-Kwan Hong
Keyword(s):  
Permanent Magnet ◽  
Eddy Current ◽  
High Power ◽  
High Speed ◽  
Torque Ripple ◽  
Eddy Current Loss ◽  
Element Analysis ◽  
Current Loss ◽  
Halbach Array ◽  
Magnetic Gear

In this study, we propose a non-contact 80 kW, 60,000 rpm coaxial magnetic gear (CMG) model for high speed and high power applications. Two models with the same power but different radial and axial sizes were optimized using response surface methodology. Both models employed a Halbach array to increase torque. Also, an edge fillet was applied to the radial magnetized permanent magnet to reduce torque ripple, and an axial gap was applied to the permanent magnet with a radial gap to reduce eddy current loss. The models were analyzed using 2-D and 3-D finite element analysis. The torque, torque ripple and eddy current loss were compared in both models according to the materials used, including Sm2Co17, NdFeBs (N42SH, N48SH). Also, the structural stability of the pole piece structure was investigated by forced vibration analysis. Critical speed results from rotordynamics analysis are also presented.

Evaluation of Experimental Result and Utility of Flux Modulated Type Magnetic Gear

2013 ◽  
Vol 133 (1) ◽  
pp. 37-42 ◽  
Author(s):  
Yuji Enomoto ◽  
Norihisa Iwasaki ◽  
Masashi Kitamura ◽  
Masahiro Mita ◽  
Masahiro Masuzawa
Keyword(s):  
Experimental Result ◽  
Magnetic Gear

Dynamic Simulation Method of a Magnetic Gear Using its Torque Map

2020 ◽  
Author(s):  
N. Niguchi ◽  
K. Hirata ◽  
K. Takahara ◽  
H. Suzuki ◽  
H. Daito ◽  
...  
Keyword(s):  
Dynamic Simulation ◽  
Simulation Method ◽  
Magnetic Gear

Finite-Element Analysis of the Magnetostatic Field of a Coaxial Magnetic Gear Device

2015 ◽  
Vol 764-765 ◽  
pp. 289-293
Author(s):  
Yi Chang Wu ◽  
Han Ting Hsu
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Magnetic Flux ◽  
High Speed ◽  
Field Analysis ◽  
Element Analysis ◽  
Magnetostatic Field ◽  
Speed Reduction ◽  
Dimensional Finite Element ◽  
Magnetic Gear

This paper presents the magnetostatic field analysis of a coaxial magnetic gear device proposed by Atallah and Howe. The structural configuration and speed reduction ratio of this magnetic gear device are introduced. The 2-dimensional finite-element analysis (2-D FEA), conducted by applying commercial FEA software Ansoft/Maxwell, is performed to evaluate the magnetostatic field distribution, especially for the magnetic flux densities within the outer air-gap. Once the number of steel pole-pieces equals the sum of the pole-pair numbers of the high-speed rotor and the low-speed rotor, the coaxial magnetic gear device possesses higher magnetic flux densities, thereby generating greater transmitted torque.

Optimized Design of Magnetic Gear with High Torque Density and Permanent Magnet Utilization

2021 ◽  
Author(s):  
Yusheng Hu ◽  
Liyi Li ◽  
Bin Chen ◽  
Yong Xiao ◽  
Meiyang Liu ◽  
...  
Keyword(s):  
Permanent Magnet ◽  
Optimized Design ◽  
Torque Density ◽  
High Torque ◽  
Magnetic Gear

A Novel Topology of Magnetic Gear.

2018 ◽  
Author(s):  
O. Molokanov ◽  
P. Dergachev ◽  
S. Osipkin ◽  
E. Kuznetsova ◽  
P. Kurbatov
Keyword(s):  
Magnetic Gear
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