Electromagnetic field and lifting capacity for longitudinal electromagnetic levitator

Author

Zhong, Xiaoyan ; Bayazitoghu, Y.

Author_Institution

Schlumberger Well Services, Houston, TX, USA

Volume

36

Issue

5

fYear

2000

fDate

9/1/2000 12:00:00 AM

Firstpage

3746

Lastpage

3753

Abstract

Detailed studies of the longitudinal electromagnetic levitator are presented. An appropriate electric current model for the computation of the electromagnetic force field in the levitated specimen is introduced. From this new model, the essential equations for the electromagnetic field and the lifting force field for a cylindrical sample are derived and the current density distribution is studied. Both lifting force and lifting capacity for the longitudinal electromagnetic levitator are analyzed and compared with the experimental data. The results can be used to design longitudinal electromagnetic levitators for different levitation purposes, to select suitable material for levitation, and to provide the framework for further investigation of melting phenomena and materials processing using the longitudinal electromagnetic levitator

Keywords

current density; electromagnetic forces; magnetic levitation; current density distribution; cylindrical sample; electric current model; electromagnetic force field; levitated specimen; lifting capacity; lifting force; longitudinal electromagnetic levitator; melting phenomena; Coils; Current density; Electromagnetic fields; Electromagnetic forces; Electromagnetic modeling; Electrostatic levitation; Frequency; Magnetic levitation; Materials processing; Materials science and technology;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.908338

Filename

908338