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

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

Design and Characteristic Analysis of Moving Coil type Linear Oscillatory Actuator Considering Unbalanced Magnetic Circuit

불평형 자기회로를 고려한 가동 코일형 리니어 진동 엑추에이터의 설계 및 특성해석

  • Kim, Duk-Hyun (Dept.of Electric, Engineering College, Changwon National University) ;
  • Eum, Sang-Joon (Dept.of Electric, Engineering College, Changwon National University) ;
  • Kang, Gyu-Hong (Dept.of Electric, Engineering College, Changwon National University) ;
  • Hong, Jung-Pyo (Dept.of Electric, Engineering College, Changwon National University) ;
  • Kim, Gyu-Tak (Dept.of Electric, Engineering College, Changwon National University)
  • Published : 2000.06.01
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Abstract

This paper deals with a study to improve the performance of Moving Coil type Linear Oscillatory Actuator (MC-LOA) considering unbalanced magnetic circuit. MC-LOA has an unbalanced magnetic circuit due to its asymmetric structure. In this type of LOA, the airgap flux density tends to have different magnitude along mover's displacement and the current directions. The above property causes eccentric of displacement center and interferes with the proper oscillation of LOA. Therefore, this paper presents two models having the unbalanced magnetic circuit and the other balanced by the saturated core. In order to compare the characteristics between the two models, a characteristic analysis for both the basic model and the improved model is performed by their dynamic analysis composed of kinetic and electric equations and Finite Element Method (FEM). The propriety of the improved model is verified through the experimental results.

Keywords

References

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