FEM COUPLING FIELD ITERATION AND ITS CONVERGENCE FOR A GMM ACTURATOR  

作　　者：CaoZhiton CaiJiongjiong ChenHongping HeGuoguang 

机构地区：[1]InstituteofApplied-Physics,ZhejiangUniversity,Hangzhou310027,China

出　　处：《Chinese Journal of Mechanical Engineering》2005年第1期79-82,共4页中国机械工程学报（英文版）

基　　金：This project is supported by National Natural Science Foundation of China (No.50077019).

摘　　要：The coupling iteration (CI) of the finite element method(FEM) is used to simulate the magnetic and mechanical characteristics for a GMM actuator. The convergent ability under different prestress and different load types is investigated. Then the calculated deformations are compared with the experimental values. The results convince that the CI of FEM is suitable for the simulation of energy coupling and transformation mechanism of the GMM. At last, the output deformation properties are studied under different input currents, showing that there is a good compromise between good linearity and large strain under the prestress 6 MPa.The coupling iteration (CI) of the finite element method(FEM) is used to simulate the magnetic and mechanical characteristics for a GMM actuator. The convergent ability under different prestress and different load types is investigated. Then the calculated deformations are compared with the experimental values. The results convince that the CI of FEM is suitable for the simulation of energy coupling and transformation mechanism of the GMM. At last, the output deformation properties are studied under different input currents, showing that there is a good compromise between good linearity and large strain under the prestress 6 MPa.

关 键 词：Giant magnetostrictive materials(GMM) Energy coupling and transformation Coupling iteration (CI) Finite element method (FEM) Actuator 

分 类 号：TG14[一般工业技术—材料科学与工程]