Jixie chuandong (Jan 2024)
Electromagnetic Torque Calculation and Transmission Characteristic of Drum-type Solid Magnetic Couplers
Abstract
In order to study the calculation formula of the electromagnetic torque and the transmission characteristics of the drum-type solid magnetic coupler (DSMC), a DSMC with 4 poles is used as the research object. The magnetic equivalent circuit model introducing the induced current is established, combining with Ampere's loop law and the 3-D magnetic effect to analyze and calculate the electromagnetic torque. The magnetic field distribution and induced current distribution of the coupler and the mechanical characteristic curve under different input speeds are obtained by using the finite element simulation software. By moving the conductor rotor axially and changing the relative position of the two rotors, the effects of different meshing lengths on the electromagnetic torque are obtained. Finally, a test platform is built to verify the electromagnetic torque results obtained by the theoretical calculation and the finite element simulation. The experimental results are basically consistent with the above results. The model provides guidance for the design and optimization of the DSMC.
