Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1262049 | Journal of Rare Earths | 2009 | 4 Pages |
Abstract
Whether the Terfenol-D rod should be laminated is of concern at the beginning of designing a magnetostrictive actuator for dynamic applications. Lamination can reduce the eddy current loss, but also decrease the stiffness of the GMM rod. The conventional way by is complicated FEM (Finite-Element Method) or one's experience. In this article an analytical approach of magnetic field distribution in the cross-section of the rod was described, and it was introduced as a reference method to judge if the Terfenol-D rod should be laminated. Numerical evaluation and experimental results proved the rationality and availability of the approach.
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