Abstract
Magnetostrictive (MS) materials exhibit a large strain and a high energy-density, because of their large MS coupling coefficient. In particular, an MS actuator that uses Terfenol-D generates great-force and strain. The efficiency of an MS actuator is highly dependent on the pre-stress, magnetic field intensity, magnetic bias and thermal expansion. The specific type or shape of permanent magnet (PM) needed for a given magnetic bias is determined using numerical simulation. According to magnetic field the heat created by resistance influences the thermal expansion. This paper proposes the optimal exterior PM for achieving a magnetic bias and minimizing the ohmic heat effect with a geometric composite of an electromagnet considered to be a practically precise MS actuator.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: International Journal of Applied Electromagnetics and Mechanics
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
