关键词: 电机, 低温, 带载能力

Abstract: According to the phenomenon that loading capacity visibly decline at low temperature of motor with a special construction, the various factors were sorted out. Based on temperature attributes of different materials forms motor, finite element simulation analysis was used to set up mesh attributes and boundary conditions hence build a finite element model. The model was applied to analysis fit clearance deformation of low-temperature-drag-torque-components at different temperature . The magnitude of fit clearance was optimized according to the simulation result. Simulation result and optimize design was verified by experiment, resolved the technical challenge of loading capacity dramatic decline at low temperature.

Key words: motor, low temperature, load ability