TY - JOUR AU - 장건희 DA - 2015/05 PY - 2015 SN - 978-1-4799-7322-4 UR - http://ieeexplore.ieee.org/document/7157401/ UR - http://hdl.handle.net/20.500.11754/24724 AB - This research investigates numerically the characteristics of the cogging torque in a brushless DC (BLDC) motor caused by the air gap between permanent magnet (PM) segments, and proposes a design method to reduce the effect of the air gap between PM segments on the cogging torque and acoustic noise of a BLDC motor. A 3D finite element model is used to calculate the cogging torque while a microphone is used to measure the acoustic noise and overall sound pressure level of the BLDC motor. PB - IEEE KW - Torque KW - Forging KW - Harmonic analysis KW - Acoustic noise KW - Reluctance motors KW - Brushless motors KW - Noise measurement TI - Effect of air gap between PM segments on cogging torque and acoustic noise of BLDC motor DO - 10.1109/INTMAG.2015.7157401 ER -