The Transactions of the Korean Institute of Electrical Engineers B (대한전기학회논문지:전기기기및에너지변환시스템부문B)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

Comparison and Analysis of Linear Oscillatory Actuator According to Mover Type

왕복운동 리니어 액추에이터의 가동자 형태에 따른 전자기적 특성해석 및 비교

  • 장석명 (충남대 공대 전기공학과) ;
  • 최장영 (충남대 공대 전기공학과) ;
  • 정상섭 (LG전자 DA연구소 COMP그룹) ;
  • 이성호 (LG전자 DA연구소 요소기술그룹) ;
  • 조한욱 (충남대 전기공학과)
  • Published : 2004.04.01
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Abstract

In the machine tool industry, direct drive linear motor technology is of increasing interest as a means to achieve high acceleration, and to increase reliability. The advantages of such a motor are that it has a good linearity and has no need of such mechanical energy conversion parts, which change rotary motion into linear motion, as screws, gears, chains etc In this paper, two structures of LOA are analyzed. One is the moving-coil type LOA and the other is moving-magnet type LOA. Two types of LOA are analyzed, with reference to the following parameters as variables: magnetic field, flux linkage, motor thrust and back emf. These variables are derived by the use of analytical method in terms of two-dimensional rectangular coordinate system. The maximum values of thrust according to such design parameters as air-gap length and magnet height for each model is also represented. The results are validated extensively by comparison with finite element method. In particular, we experiment moving-coil LOA which is already manufactured and confirm that the experimental results are shown in good agreement with analysis through the comparison of between analytical and experimental results

Keywords

References

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