Multi-physics coupling field finite element analysis on giant magnetostrictive materials smart component  

作　　者：Zhang-rong ZHAO Yiojie WU Xin-jian GU Lei ZHANG Ji-feng YANG 

机构地区：[1]State Key Laboratory of Fluid Power Transmission and Control, Modern Manufacture Engineering Institute, Zhejiang University, Hangzhou 310027, China [2]Department of Mechanical & Electronic, North China Institute of Science and Technology, Beijing 101601, China

出　　处：《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》2009年第5期653-660,共8页浙江大学学报（英文版）A辑（应用物理与工程）

基　　金：supported by the National Natural Science Foundation of China (No. 50575205);the Hi-Tech Research and Development (863) Program of China (Nos. 2006AA04Z233 and 2007AA04Z101);the Doctoral Foundation of Ministry of Education of China (No. 20070335204);the Zhejiang Provincial Natural Science Foundation of China (No. Z1080537)

摘　　要：This study presents a new method to solve the difficult problem of precise machining a non-cylinder pinhole of a piston using embedded giant magnetostrictive material (GMM) in the component. We propose the finite element model of GMM smart component in electric, magnetic, and mechanical fields by step computation to optimize the design of GMM smart com-ponent. The proposed model is implemented by using COMSOL multi-physics V3.2a. The effects of the smart component on the deformation and the system resonance frequencies are studied. The results calculated by the model are in excellent agreement (relative errors are below 10%) with the experimental values.This study presents a new method to solve the difficult problem of precise machining a non-cylinder pinhole of a piston using embedded giant magnetostrictive material （GMM） in the component. We propose the finite element model of GMM smart component in electric, magnetic, and mechanical fields by step computation to optimize the design of GMM smart component. The proposed model is implemented by using COMSOL multi-physics V3.2a. The effects of the smart component on the deformation and the system resonance frequencies are studied. The results calculated by the model are in excellent agreement （relative errors are below 10%） with the experimental values.

关 键 词：Smart component Giant magnetostrictive Finite element method （FEM） modeling Non-cylinder piston pinhole Multi-physics coupling field 

分 类 号：TM271[一般工业技术—材料科学与工程] TQ336.1[电气工程—电工理论与新技术]