Three-Dimensional Model of Magnetostrictive Force Sensor Considering Stress Coupling and Experimental Research

Authors

Li Bo, 1. School of Logistics Engineering, Wuhan University of Technology, Wuhan 430063, China; ;
Jiabin Yang, 1. School of Logistics Engineering, Wuhan University of Technology, Wuhan 430063, China; ;
Shu Liang, 2. Zhejiang Engineering Research Center of Low- Voltage Apparatus, Wenzhou University, Wenzhou 325035, China; ;
Penghui Li, 1. School of Logistics Engineering, Wuhan University of Technology, Wuhan 430063, China; ;
Wu Hong, 3. Gansu Tianxing Rare Earth Functional Materials Co., Ltd., Lanzhou 730000, China;

Abstract

Abstract: Considering the brittleness of normal magnetostrictive and piezoelectric materials, a new magnetostrictive force sensor is proposed, in which Galfenol alloy is taken as the sensing element. Considering the anisotropy of Galfenol, three-dimensional magneto-mechanical coupled model is presented on the basis of electromagnetic and mechanical governing equation. The nonlinear magnetization behavior of Galfenol is described by employing the discrete energy-averaged model. The coupling of the magnetization model and the structural model is implemented with the PDE weak form equations. The model is solved by using the weak form module of Comsol Multiphysics. Simulation results show that both field and stress induced magnetization can be described by using the model. A sensing prototype is designed by using a Φ8x100 mm Galfenol rod. Experimental results show that the proposed sensing structure can be used to measure alternating load. Measurements of the magnetization have a good match with the simulations.

Recommended Citation

Bo, Li; Yang, Jiabin; Liang, Shu; Li, Penghui; and Hong, Wu (2019) "Three-Dimensional Model of Magnetostrictive Force Sensor Considering Stress Coupling and Experimental Research," Journal of System Simulation: Vol. 30: Iss. 10, Article 10.
DOI: 10.16182/j.issn1004731x.joss.201810010
Available at: https://dc-china-simulation.researchcommons.org/journal/vol30/iss10/10

First Page

3671

Revised Date

2017-08-29

DOI Link

https://doi.org/10.16182/j.issn1004731x.joss.201810010

Last Page

3680

CLC

TP391.9

Recommended Citation

Li Bo, Yang Jiabin, Shu Liang, Li Penghui, Wu Hong. Three-Dimensional Model of Magnetostrictive Force Sensor Considering Stress Coupling and Experimental Research[J]. Journal of System Simulation, 2018, 30(10): 3671-3680.

DOI

10.16182/j.issn1004731x.joss.201810010