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The magnetic actuator using a laminate composite of piezoelectric (PZT) and magnetostrictive materials (MM) achieves active control of magnetic force without Joule heat loss. To study its characteristics, the field-circuit hybrid method is proposed based on the equivalent magnetic circuit and the finite element analysis (FEA) of piezoelectric and magnetic fields. The strain of laminate composite under...
This paper deals with analysis method of the magnetostrictive material based actuator using the three dimensional finite element method (3-D FEM). Fully coupled electro-magnetic-mechanical analysis method is proposed, in which the nonlinearity of magnetostrictive material is considered. The validity of the analysis is verified by the measurement of a prototype.
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