FE transient analysis of the magnetostrictive actuator

Issue title: Selected Papers from ISEF 2015

Guest editors: Paolo Di Barba and Sƚawomir Wiak

Article type: Research Article

Authors: Idziak, Paweƚ | Kowalski, Krzysztof | Nowak, Lech | Knypiński, Ƚukasz^*

Affiliations: Poznan University of Technology, Poznan, Poland

Correspondence: [*] Corresponding author: Ƚ. Knypiński, Poznan University of Technology, Piotrowo 3a, Poznan, Poland. Tel.: +48 61 665 2636; Fax: +48 61 665 2389; E-mail:lukasz.knypinski@put.poznan.pl

Abstract: The paper deals with a magnetostrictive fast-acting actuator applied as a driving device for plasma valve designed for so called ``high intensity plasma pulses gun''. The actuator is characterized by a small displacement, but with a very short response time - below 0.1 ms. A structure with an axisymmetrical actuator energised by discharged pulses of a capacitor has been proposed. The field-circuit mathematical model of the dynamic operation of the actuator has been applied. The model includes: the equation of transient electromagnetic field in a non-linear ferromagnetic material and equation of electric circuit. The computer software has been elaborated. Results of simulation are presented.

Keywords: Magnetostriction, fast-acting actuators, finite element analysis, transient analysis

DOI: 10.3233/JAE-2011

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 51, no. s1, pp. S81-S87, 2016