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针对超磁致伸缩材料中的涡流损耗与集肤效应对材料性能的影响,研究叠堆结构对Terfenol-D棒状材料的涡流抑制作用。基于经典的Maxwell方程组所构建的叠堆结构棒状Terfenol-D的涡流损耗模型,结合材料自身特性,研究切片厚度与环氧树脂黏贴厚度等叠堆结构参数对材料涡流损耗的影响。基于ANSYS平台进行了仿真实验,结果显示,在使用8×50 mm的Terfenol-D棒的情况下,切片数为5、黏贴厚度为0.1 mm的设计方案可有效抑制叠堆结构超磁致伸缩材料的涡流损耗效应。
Aiming at the influence of eddy current loss and skin effect on the material properties in giant magnetostrictive materials, the eddy current suppression effect of stack structure on Terfenol-D rod material was studied. Based on the eddy current loss model of the rod-shaped rod-shaped Terfenol-D stack constructed by the classical Maxwell’s equations, the influence of the stack structure parameters such as the slice thickness and the thickness of the epoxy resin on the eddy current loss of the material was studied. Based on the ANSYS platform, the simulation results show that with Ter8 × 50 mm Terfenol-D rod, the number of slices is 5 and the sticking thickness of 0.1 mm can effectively restrain the structure of the stack magnetostrictive Eddy current loss effect of stretch material.