Motion transient analysis of flat-type vibration motor for mobile phone

Author

Won, Sung Hong ; Kim, Tae Heoung ; Lee, Ju

Author_Institution

Dept. of Electr. Eng., Hanyang Univ., Seoul

Volume

42

Issue

4

fYear

2006

fDate

4/1/2006 12:00:00 AM

Firstpage

851

Lastpage

854

Abstract

The flat-type vibration motor has an axial-gap structure. Analyzing axial-gap motors with the two-dimensional (2-D) finite-element method is very difficult because we have to define the analysis surface as a cylindrical surface. In order to simulate the flat-type vibration motor, we have developed new equations of calculation for the torque of the motor, which is uses a 2-D grid model. We have measured the load torque of the vibration motor which is used for the motion transient analysis. The simulated vibration characteristic is compared with experimental value

Keywords

finite element analysis; mobile handsets; vibrations; 2D finite-element method; 2D grid model; FEM; axial-gap motors; cylindrical surface; flat-type vibration motor; mobile phone; motion transient analysis; motor torque calculation equation; Coils; Current density; Finite element methods; Magnetic flux; Mobile handsets; Motion analysis; Torque; Transient analysis; Two dimensional displays; Vibration measurement; Axial gap; finite-element method (FEM); grid; mobile phone; motion transient; vibration motor;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.2006.870964

Filename

1608340