Design and Finite Element Analysis of Novel Two-Stage Magnetic Precession Gear

• Published in: International journal of simulation modelling Vol. 18; no. 4; pp. 586 - 595
• Main Authors: Macyszyn, L., Jedryczka, C., Staniek, R.
• Format: Journal Article
• Language: English
• Published: Vienna DAAAM International Vienna 01.12.2019
• Subjects: Air gaps; Computer simulation; Finite element method; Flux density; Gear ratios; Magnetic flux; Permanent magnets; Precession; Rotating shafts; Three dimensional models; Torque; Waveforms
• ISSN: 1726-4529; 1726-4529
• DOI: 10.2507/IJSIMM18(4)487

The paper presents a comparison of known magnetic gear constructions in terms of torque density and range of gear ratio. The theoretical bases, concept and the principle of operation of novel two-stage magnetic precession gear have been provided. The advantage of proposed gear is ability to obtain greater transmission ratios than currently known magnetic gears. Moreover, geometrical and kinematical relations between particular components of proposed gear were determined and the analyses of optimal gear ratio, which depends on the number of permanent magnets on the particular gear wheels, have been performed. For detailed analysis of the proposed gear performance the complex 3D FEM model of the precession transmission was created. Research was focused on determining distribution of magnetic flux density in air gaps as well as calculation of the torque waveforms acting on the output and input shafts as a function of the input shaft rotation angle. Selected results of the simulations showing proper operation of the proposed precession transmission system were presented and discussed.