Influence of pole-pieces on characteristics in planetary type magnetic gear

Michinari Fukuoka, Kenji Nakamura, Osamu Ichinokura

Research output: Contribution to journalArticlepeer-review

Abstract

A planetary type magnetic gear consists of coaxial inner and outer rotors with surface-mounted permanent magnet, and ferromagnetic stationary parts called pole-pieces. It offers desirable features which conventional mechanical gears do not have, such as low maintenance and acoustic noise, and inherent overload protection. This paper presents a comprehensive study of the influence of geometry and position of the pole-pieces on torque performance based on finite element analysis (FEA) and experiments. Surveyed parameters of the pole-pieces include lengths in radial and axial direction, width in circumferential direction, and position in radial direction. Finally, it is demonstrated that the maximum torque of the improved prototype gear is increased by 45% and the maximum efficiency achieves up to about 99%.

Original languageEnglish
JournalIEEJ Transactions on Fundamentals and Materials
Volume134
Issue number6
DOIs
Publication statusPublished - 2014 Jan 1

Keywords

  • Finite element analysis (FEA)
  • Optimum design
  • Planetary type magnetic gear
  • Pole-pieces

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Influence of pole-pieces on characteristics in planetary type magnetic gear'. Together they form a unique fingerprint.

Cite this