光学精密工程2011，Vol.19Issue(8)：1832-1837,6.DOI:10.3788/OPE.20111908.1832
复合薄膜磁致伸缩系数求解及悬臂梁结构优化
Calculation of magnetostrictive coefficient of composite thin film and structure optimization of cantilever
摘要
Abstract
A model to solve the magnetostrictive coefficient of a Giant Magnetostrictive Film(GMF) was established to analyze the coupling relations of GMFs. Then, the building process, deduction mechanism and simulation results of the model were investigated. On the basis of magnetostrictive coefficient expression of a single layer GMF, the magnetostrictive coefficient expression of a composite GMF was obtained by simplifying the deformation of the composite GMF reasonablely. By taking the compound GMF with positive and negative magnetostrictive effects as the research object, the impact of magnetostrictive coating thickness on the deflection of the free end of the cantilever GMF was discussed by using the deduced magnetostrictive coefficient expression. The results show that the deformation capability for both Cu-based thin film and Pi-based thin film can reach the maximum when the total thickness ratio of the positive and negative magnetostrictive material layers is 2. 3,which realizes the structure optimization of positive and negative cantilevers.关键词
超磁致伸缩复合薄膜/磁致伸缩系数/结构优化Key words
composite Giant Magnetostrictive Filrn(GMF) / magnetostrictive coefficient/ structure optimization分类
矿业与冶金引用本文复制引用
王福吉,贾振元,刘巍,赵显嵩..复合薄膜磁致伸缩系数求解及悬臂梁结构优化[J].光学精密工程,2011,19(8):1832-1837,6.基金项目
国家自然科学基金资助项目(No.50775021,No.50605005) （No.50775021,No.50605005）
