Linear magnetostrictive IDM actuator based on composite cantilever beam

Abstract

According to the weight and vibration of power cable will affect the motion precision unavoidably in the moving process of linear piezoelectric IDM actuator, and the mobile speed and load capacity of linear piezoelectric IDM actuator is not ideal, This article used giant magnetostrictive alloy Terfenol-D as the driving source, researching a novel linear magnetostrictive IDM actuator based on the composite cantilever beam. Combined with 3D modeling software SoildWorks and finite element analysis software COMSOL Multiphysics to process magnetic-structure coupling simulation analysis, and analyzed the reason for the largest deformation position of the composite cantilever beam is not located in the center of symmetry plane but biased towards the counterweight block some distance, from the simulation results, more pieces and small size Terfenol-D slices interval onto the elastic sheet composited the cantilever beam has a very large deformation, so we can know that the magnetostrictive IDM actuator has bigger output force, the load capacity is stronger, and it has a very broad application prospect.