The Hysteresis Model Of TerfenoI-D With Magneto-Stress Coupling

摘要

The output of Terfenol-D is nonlinear and hysteretic under the effect of magnetic field and prestress.The nonlinear constitutive relation between magnetostriction and magnetization with magneto-stress coupling was built in consideration of the magnetostriction saturation and the prestress correlation.Then,the hysteresis behavior of Terfenol-D was modeled based on the Jiles-Atherton model.The error of magnetostriction between simulations and experimental data is less than 6％.This result indicates that the model can adequately predict the nonlinear hysteresis and magneto-stress coupling character of Terfenol-D.