Title :
Dynamic analysis of a reciprocating linear actuator for gas compression using finite element method
Author :
Yoon, Sang-Baeck ; Jung, In-Soung ; Kim, Ki-Chan ; Hyun, Dong-seok
Author_Institution :
Dept. of Electr. Eng., Hanyang Univ., Seoul, South Korea
fDate :
9/1/1997 12:00:00 AM
Abstract :
This paper presents the dynamic analysis of a reciprocating actuation system based on moving magnet actuator for gas compression. For the analysis of the linear actuator, an axisymmetric finite element method (FEM) considering the saturation effect of the magnetic material is used, and electrical circuit equation, mechanical dynamic equation and pressure dynamics are coupled. In the FE analysis, we adopt a moving line technique to save computation time and to perform the process efficiently. The pressure dynamics of the gas in the compressor is modeled by using the law of thermodynamics. The analysis results compare fairly well with experimental ones
Keywords :
actuators; compressors; finite element analysis; magnetic devices; axisymmetric finite element analysis; electrical circuit; gas compression; magnetic material saturation; mechanical dynamics; moving line technique; moving magnetic actuator; pressure dynamics; reciprocating linear actuator; thermodynamics; Coupling circuits; Equations; Finite element methods; Hydraulic actuators; Magnetic analysis; Magnetic circuits; Magnetic materials; Performance analysis; Saturation magnetization; Thermodynamics;
Journal_Title :
Magnetics, IEEE Transactions on
