03-analysis of a permanent magnet brush motor.pdf

JMAG Application Note Analysis of a Permanent Magnet Brush Motor CONTENTS Overview........................................................................................................................................ 2 1 Analysis Scope ........................................................................................................................... 3 2 Motor Specification ..................................................................................................................... 3 3 Analysis Results ......................................................................................................................... 6 3.1 Speed-Torque and Torque-Current Curves ......................................................................... 6 3.2 Magnetic Flux Density Distribution ...................................................................................... 7 4 Analysis Steps ............................................................................................................................ 8 5 FEM Model Creation .................................................................................................................. 9 5.1 Mesh Model ......................................................................................................................... 9 5.1.1 2D Model ...................................................................................................................... 9 5.1.2 Air Region ................................................................................................................... 10 5.1.3 Mesh Generation ........................................................................................................ 10 5.2 Material Properties ............................................................................................................ 10 5.3 Analysis Conditions .....................................................................................................