공기 동압 베어링을 갖는 디지털 라이트닝 프로세서 모터용 코어리스 및 슬롯리스 BLDC 모터의 특성 분석 및 비교

다국어 초록 (Multilingual Abstract)

This paper presents the analysis for power consumption, mechanical vibration and acoustic noise characteristics of the Coreless and Slotless Brushless DC motor in Digital Lightening Processor(DLP) Motor with the Air-Dynamic Bearing. The Coreless BLDC motor has not the stator yoke as well as the stator slot to remove the unbalance force by the interaction between the stator yoke and Air-Dynamic Bearing clearance. The assembling tolerance and the processing error make the air-gap difference between the magnet and the stator yoke, which occurs the unbalanced electro-magnetic force in the Slotless BLDC motor. It imposes the air-dynamic bearing on the disturbance force and makes the Air-Dynamic Bearing vibrated and noised. Also, The attractive force between the magnet and the silicon steel stator yoke increases the power consumption. In this paper, the power consumption, mechanical vibration and acoustic noise of the Coreless BLDC motor and the Slotless BLDC motor with the silicon steel stator yoke are simulated, analyzed, and tested using the manufactured proto-type motors with Air-Dynamic bearing. The simulated and tested results present that the Coreless BLDC motor without the silicon steel stator yoke has the lower mechanical vibration and noise, and lower power consumption than the Slotless BLDC motor with the silicon steel stator yoke in Digital Lightening Processor Motor with Air-Dynamic Bearing.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 본론
• 3. 결론
• 감사의 글
• 참고문헌
• 저자소개

참고문헌 (Reference)

1 "전자장 수치 해석 기법 현황" 1992

2 "氣軸受-設計から製作まで" 昭和59年

3 "Numerical Computation of Torques in Permanent Magnet Motors by Maxwell Stress and Energy Method" 24 : 1988-, no.1pp.463-466

4 "Design of Brushless Permanent Magnet Motors" 1994-, oxford

5 "Comparison of Vibration Sources Between Symmetric and Asymetric HDD Spindle Motors with Rotor Eccentricity" 37 (37): 1727-1731, 2001

6 "Air Bearings-Are they the future for the Hard Disk Drive Spindle motors?" 49-52, 2002

7 "A Novel Compact PMSM with Magnetic Bearing Artificial Heart Application" 36 (36): 2000