Dynamic Analysis of Planetary-Type Magnetic Gear Based on Reluctance Network Analysis

Abstract

Magnetic gears are able to transmit torque without mechanical contact. Therefore, these have attractive features, such as low acoustic noise and maintenance-free operation in comparison with conventional mechanical gears. Planetary-type magnetic gears, especially, have higher transmission torque than the other types, and are expected to be put into practical use. This paper presents a method for calculating dynamic characteristics of the magnetic gear based on reluctance network analysis (RNA). The RNA has several features, including a simple analytical model, high calculation accuracy, and ease of coupled analysis with rotational motion of rotors.