Magnetic gear with intersecting axes and straight stationary pole-pieces

Hao, Xiuhong; Zhu, Hongqian; Guan, Xuemei; Pan, Deng

doi:10.1177/1687814018808865

Cited by 1 publication

(1 citation statement)

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“…The most suitable design for the magnetic field modulation mechanism of the magnetic gear is a coaxial structure, which also facilitates integration with motors [14]. Therefore, other types of implementations, such as the field modulated magnetic gears with the intersecting axes (FMMGIA), have received significantly less attention, although they have higher output torque and torque density than the traditional intersecting shaft magnetic gears and are equally important as an alternative to mechanical bevel gears [15,16]. Based on our previous work on transmission mechanisms and structural optimization, we established a three-dimensional dynamic model and the corresponding differential equations of the magnetic gear system, analyzed the modal characteristics of the system, and identified the effects of different design parameters on the modal frequency.…”

Section: Introductionmentioning

confidence: 99%

Free Vibration of Magnetic Gear With Intersecting Axes

Hao¹,

Hao²,

Wang³

et al. 2020

PIER C

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The dynamic performance optimization of magnetic gear devices is essential to their industrialization. In this study, upon considering the magnetic field coupling characteristics of different components of a field modulated magnetic gear with intersecting axes (FMMGIA), we first obtained the magnetic coupling stiffnesses of these components via the finite element method. On this basis, we further established a dynamic model as well as the corresponding differential equations for the magnetic gear. Thereafter, we analyzed the modal characteristics and the influences of the primary design parameters on the modal frequency of the FMMGIA system. The results indicated that the magnetic coupling stiffnesses among the FMMGIA components were significantly lower than the meshing stiffnesses of the mechanical gears. In addition, the magnetic gear system consisted of three orders of torsional modals as well as three orders of horizontal vibration modals, among which the torsional modal frequencies of both the input and output rotors were substantially lower than others. Finally, parameters such as the minimum axial length and the permanent magnet remanence demonstrated considerable have impacts on the modal frequencies of the FMMGIA system.

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Section: Introductionmentioning

confidence: 99%