Title :
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
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;
Conference_Titel :
Piezoelectricity, Acoustic Waves, and Device Applications, 2008. SPAWDA 2008. Symposium on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-2891-5
DOI :
10.1109/SPAWDA.2008.4775834
