BLDC 모터의 온도 및 진동 특성 연구

• Published in: 한국동력기계공학회지 Vol. 18; no. 4; pp. 43 - 51
• Main Authors: 예정우, 손문규, 최명환, 김대화, 조연수, 이현석, 심재술, Ye, Jung-Woo, Son, Mun-Gyu, Choe, Myoung-Hwan, Kim, Dae-Hwa, Cho, Yeon-Su, Lee, Hyun-Seok, Shim, Jae-Sool
• Format: Journal Article
• Language: Korean
• Published: 2014
• Subjects: Temperature; Load device; Vibration; Accelerometer; BLDC motor
• ISSN: 1226-7813; 2384-1354

In this paper, transient temperature and vibration characteristics of a brushless DC (BLD(c) motor are studied for external load (165W~495W) and rotational speed (2000 rpm~4000 rpm). For experiment, a simple measurement system is developed to allow a change in load and speed for measuring transient temperature and vibration simultaneously. Temperature and vibration were also measured under the conditions of natural convection and forced convection. Vibrations in the directions of x-axis (#Ch1), y -axis (#Ch2) and z -axis (#Ch3) were obtained by three accelerometers and temperature was obtained by a thermo-couple with respect to time until the motor is steady. Experimental results show that the amplitude of vibration is higher in the order of z-axis (#Ch3), x -axis (#Ch1) and y-axis (#Ch2) and the amplitude of vibration at the forced convection conditions is 10.6% to 17.8% lower than that of vibration at the natural convection. However, the ratio of the vibration value is similar on average regardless of external convection condition.