Ferromagnetic cilia can achieve a variety of different bending forms under magnetic fields by changing the distribution mode of internal magnetic domains. Chromium dioxide (CrO2 ),as a new type of ferromagnetic material,allows for precise control of a single cilium through laser-assisted magnetization. However,relatively low remanence and coercivity of the material will affect deformation ability of the cilia to some extent. In order to study its deformation properties and improve its deformation ability at the same time,a segmented structure based on micro-cilia with a specific aspect ratio(7:1)is designed and manufactured,and finite element analysis(FEA)on its statics deformation is conducted using Abaqus secondary development tools. The results show that the deformation of cilia can be improved significantly by the segmented design,with a 100％ increase in the deformation angle compared to the non-segmented structure.
关键词
纤毛/铁磁材料/分段结构/有限元分析/变形优化
Key words
cilia/ferromagnetic material/segmented structure/finite element analysis(FEA)/deformation optimization
维普
万方数据