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Journal of Mechanical Science and Technology

, Volume 32, Issue 9, pp 4423–4431 | Cite as

Electromechanical modeling of a novel moving magnet linear oscillating actuator

  • Adnan Hassan
  • Armin Bijanzad
  • Ismail Lazoglu
Article
  • 36 Downloads

Abstract

This article presents a design of a novel moving magnet linear actuator (MMLA) for linear refrigerator compressor. A methodology to estimate the magnetic flux density as well as the magnetic force of MMLA is presented. Considering the simulation time of a 3D FEM software, a combination of 2D FEM with the analytical models makes this technique convenient and expeditious. Using the 2D FEM, the magnetic flux path is segregated into several loops which are divided into finite reluctance zones. The reluctance models for each zone incorporates the effect of armature position to predict the magnetic flux density and linear force incorporating the stator saturation. A 3D FEM simulation is executed to compare the presented models as well as computation times. Furthermore, an analytical approach for evaluating the effect of the excitation frequency and motor constant on the dynamic performance of a linear oscillating actuator is presented and validated experimentally.

Keywords

FEM simulation Linear compressor Moving magnet linear actuator Reluctance method Stator saturation Excitation frequency Frequency response function Motor constant Motor efficiency System dynamics Transfer function 

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Copyright information

© The Korean Society of Mechanical Engineers and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Manufacturing and Automation Research Center, Mechanical Engineering DepartmentKoc UniversityIstanbulTurkey

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