Finite Element Method Analysis Of Magnetostrictive Research On Transducer

In the rapid development of society, the new material was found mushroomedand applications, and smart materials as one of the best into people’s vision and life,as smart materials representative material--the giant magnetostrictive material(GMM) is the energy exchange functional materials, its superior performance, withstrong ability to control, fast strain rate, simple drive form, the strain caused by thedisplacement of large and many other advantages, This makes it compared to othermaterials have great application and more extensive development prospects. Whichaspects of the transducer occupy a major part of the applications, according to theirdifferent characteristics to research of the different transducers, the giantmagnetostrictive Actuator compared to other transducer has a larger displacementrange, smaller work voltage, a wider range of applications, smaller working voltage,wider application scope, higher mechanical strength, greater power and smallerdevice size.This paper describes the basic characteristics of giant magnetostrictive materialand its basic principles, then described the transducer works and its structure of theentire magnetic circuit, According to the magnetostrictive transducer forelectromagnetic field and structural field finite element analysis, obtains themagnetostrictive material magnetic field and energy loss value, And then themagnetic field forces received as load applied to the rod structure of field analysis,obtains the strain value. Study on magnetostrictive properties of the transducer in thecurrent frequency, voltage, different intensity of external magnetic yoke, thenanalyzed the energy loss. Through this research, analysis the impact of the externalfield and bar size magnetostriction transducer. The research results have referencevalue to the design and application of the magnetostrictive transducer.