LI Daiyan, ZHANG Yanli, WANG Zhen, et al. Magneto-mechanical Direct Coupling Finite Element Calculation Method and Experimental Verification Considering Magnetostrictive Anisotropy and Stress[J]. 2025, 45(19): 7810-7818.
LI Daiyan, ZHANG Yanli, WANG Zhen, et al. Magneto-mechanical Direct Coupling Finite Element Calculation Method and Experimental Verification Considering Magnetostrictive Anisotropy and Stress[J]. 2025, 45(19): 7810-7818. DOI: 10.13334/j.0258-8013.pcsee.240461.
To improve the reliability of iron core vibration deformation calculation in electrical products arising from the magnetostrictive property in material
this paper conducts research on the magneto-mechanical direct coupling calculation method considering magnetostrictive anisotropy and stress. The total energy equation for direct magneto-mechanical coupling is derived
in which the magnetostrictive properties and coupling relationship between magnetic field energy and strain energy are considered. A nonlinear orthogonal anisotropic magnetostrictive strain tensor model is established for the magneto-mechanical coupling solution domain of soft magnetic materials. Based on the Newton-Raphson's iterative method
the nonlinear iterative solution process of magneto-mechanical coupling calculation is derived
considering the influence of stress on magnetostriction. Finally
the finite element calculation program is compiled
and the effectiveness and accuracy of calculation program are verified through experiments on the physical model of the iron core.