Magnet circuit optimization design of giant magnetostrictive actuator

Author

Liu Dehui ; Quanguo, Lu ; Yuyun, Zhen

Author_Institution

Sch. of Mech. Eng., Nanchang Inst. of Technol., Nanchang, China

fYear

2008

fDate

22-25 Nov. 2008

Firstpage

688

Lastpage

692

Abstract

To optimize the electromagnetic performance of giant magnetostrictive actuator(GMA), equivalent magnet circuit equation was proposed, and effects of magnetic circuit components, gapÂ¿s magnetic permeability and the evenness of driving magnetic field on the magnetic field characteristics were analyzed based on the equation. the driving coilÂ¿s structure was designed, and its shape was optimized based on G-factor; with the electromagnetic field analysis function available in ANSYS program, several different magnetic circuits and their field distribution are analyzed. As a result, a kind of magnetic circuit structure with more even magnetic field is found out. The actuator prototype was made and tested, and result shows the optimal method proposed in the paper can greatly improve performance of GMA.

Keywords

actuators; equivalent circuits; g-factor; giant magnetoresistance; magnetic circuits; magnetic permeability; ANSYS program; G-factor; driving coil; electromagnetic field analysis function; giant magnetostrictive actuator; magnet circuit optimization design; magnetic permeability; Actuators; Circuit optimization; Design optimization; Differential equations; Electromagnetic analysis; Electromagnetic fields; Magnetic analysis; Magnetic circuits; Magnetostriction; Performance analysis; Driving coil; Evenness of magnetic field; G-factor; Giant Magnetostrictive Actuator; Magnetic circuit;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer-Aided Industrial Design and Conceptual Design, 2008. CAID/CD 2008. 9th International Conference on

Conference_Location

Kunming

Print_ISBN

978-1-4244-3290-5

Electronic_ISBN

978-1-4244-3291-2

Type

conf

DOI

10.1109/CAIDCD.2008.4730658

Filename

4730658