Numerical algorithm for analyzing the magnetic fluid seals

Author

Park, Gwxi-Soo ; Kim, Dong-Hun ; Hahn, Song-Yop ; Lee, Ki-Sik

Author_Institution

Dept. of Electr.Eng., Korea Maritime Univ., Pursan, South Korea

Volume

30

Issue

5

fYear

1994

fDate

9/1/1994 12:00:00 AM

Firstpage

3351

Lastpage

3354

Abstract

This paper presents the numerical algorithm to obtain the boundary surface configurations of magnetic fluid seals. The surface boundary is obtained without several assumptions. In the analysis of the fluid system, surface configuration of fluid and magnetic field pattern affect each other. To solve this problem iterative computation is adopted in this algorithm. The magnetic field is computed by nonlinear finite element method considering the saturation of magnetic fluid and pole piece. The surface equilibrium condition in ferrohydrodynamics are used in the algorithm. The movement of boundary surface configuration is simulated and compared with experimental results, and the influences of fluid volume, shape of pole piece, and forces due to magnetization, rotation of the shaft and gravitation on the seal capacities are analyzed

Keywords

finite element analysis; iterative methods; magnetic fields; magnetic fluids; seals (stoppers); boundary surface configurations; ferrohydrodynamics; fluid volume; gravitation; iterative computation; magnetic field pattern; magnetic fluid seals; magnetization; nonlinear finite element method; numerical algorithm; seal capacities; Algorithm design and analysis; Analytical models; Computational modeling; Finite element methods; Iterative algorithms; Magnetic analysis; Magnetic fields; Magnetic liquids; Pattern analysis; Seals;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.312656

Filename

312656