Conceptual design of self-sensing actuator based on giant magnetostrictive material

Author

Baiping Yan ; Chengming Zhang ; Lili Li ; Fuzai Lv ; Shuang Deng

Author_Institution

Dept. of Mech. Eng., Zhejiang Univ., Hangzhou, China

fYear

2014

fDate

22-25 Oct. 2014

Firstpage

1671

Lastpage

1674

Abstract

This Paper presents the conceptual design of a self-sensing actuator (SSA) based on giant magnetostrictive material, which consists of variable-air-gap with a displacement amplification mechanism. A driving solenoid coil, surrounds the GMM rod, used to sense changes of magnetic induction in GMM. Modeling and simulation are used to validate the concept. Sensing relation is derived, uniformity and intensity of magnetic field in GMM is analyzed, magnetic circuit configuration is optimized. Then, the key structure factors influence intensity and uniformity of magnetic field in SSA is calculated. At last, Sensing application of actuator in actuation with magnetic field and compressive stress are analyzed, verify feasibility of conceptual design.

Keywords

giant magnetoresistance; magnetic actuators; magnetic circuits; magnetoresistive devices; solenoids; GMM rod; SSA; compressive stress; displacement amplification mechanism; driving solenoid coil; giant magnetostrictive material; magnetic circuit configuration; magnetic field; magnetic induction; self-sensing actuator; sensing relation; variable-air-gap; Actuators; Coils; Magnetic fields; Magnetic flux; Magnetostriction; Sensors;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines and Systems (ICEMS), 2014 17th International Conference on

Conference_Location

Hangzhou

Type

conf

DOI

10.1109/ICEMS.2014.7013762

Filename

7013762