Perturbation solution of vibrations of a magnetostrictive actuator

Author

QIN, Li-ping ; SHANG, Xin-chun ; WANG, Fan

Author_Institution

Dept. of Civil Eng., Univ. of Sci. & Technol. Beijing, Beijing

fYear

2008

fDate

5-8 Dec. 2008

Firstpage

473

Lastpage

476

Abstract

The vibrations of a magnetostrictive actuator excited by a harmonic alternating current are analyzed. In the mathematical modeling of the problem, some coefficients in governing equation and boundary condition are of periodic variation with time. Using regular perturbation approach to the mathematical problem including a small parameter, approximately analytical solution is obtained. The amplitude-frequency characteristic curves from the analytical solution agree well with the experimental data in reference, which verifies the validation of the present method and solutions.

Keywords

electromagnetic actuators; magnetostrictive devices; perturbation theory; vibrations; amplitude-frequency characteristic curves; harmonic alternating current; magnetostrictive actuator; mathematical modeling; perturbation; vibrations; Actuators; Boundary conditions; Civil engineering; Magnetic analysis; Magnetic field measurement; Magnetic fields; Magnetic materials; Magnetostriction; Springs; Vibrations; Magnetostrictive actuator; Terfenol-D; excited vibration; perturbation solution; time variable coefficient;

fLanguage

English

Publisher

ieee

Conference_Titel

Piezoelectricity, Acoustic Waves, and Device Applications, 2008. SPAWDA 2008. Symposium on

Conference_Location

Nanjing

Print_ISBN

978-1-4244-2891-5

Type

conf

DOI

10.1109/SPAWDA.2008.4775834

Filename

4775834