Torque characteristics analysis considering the tolerance of electric machine by stochastic response surface method

摘要

Manufacturing tolerances as well as measuring errors have a great influence on products designed by optimization technique etc. to improve its characteristics and reduce the cost. Therefore, tolerance analysis technique is required to find the tolerance band of design variables and estimate the characteristic distribution of the products. In this paper, we introduce Stochastic Response Methodology (SRSM), which treated design variables as random ones. Also, we present a way of the tolerance analysis from electric viewpoint. A BLDC motor is analyzed to verify the application of this method. Finally, the validity of this method is confirmed by obtaining statistically significant results for torque characteristics of the motor.