无取向硅钢片各向异性磁致伸缩特性模拟  

Modeling of Anisotropic Magnetostriction Property of Non-oriented Silicon Steel Sheet

作　　者：张艳丽[1] 孙小光[1] 谢德馨[1] 白保东[1] 张殿海[1] 任自艳[1] 

机构地区：[1]辽宁省现代电工装备理论与共性技术重点实验室(沈阳工业大学),辽宁省沈阳市110870

出　　处：《中国电机工程学报》2014年第27期4731-4736,共6页Proceedings of the CSEE

基　　金：国家自然科学基金项目(51277122);高等学校博士学科点专项科研基金项目(20122102130001);辽宁省高等学校优秀人才支持计划项目(LJQ2013014);辽宁省自然科学基金项目(2013020047)~~

摘　　要：基于一维磁致伸缩测量装置,提出了单片无取向硅钢片任意方向磁致伸缩特性的测量方法,得到了材料不同磁化方向上磁致伸缩回环,并提取了描述磁致伸缩特性的单值曲线。建立了描述磁致伸缩与磁场关系的?-(?B,Bmax)磁致伸缩数学模型,给出了由测量数据拟合得到的二维磁致伸缩特性曲面。基于Fortran语言编制了耦合上述磁致伸缩模型的有限元计算程序,并分析了一台同步发电机定子铁心的磁致伸缩。研究表明,无取向硅钢片具有任意方向各向异性的磁致伸缩特性,而该文提出的磁致伸缩测试方法和数学模型可以有效地分析硅钢片磁致伸缩各向异性特性。Based on an one-dimensional （1-D） magnetostriction measurement device, a method measuring the magnetostrictive property along arbitrary directions for a non-oriented silicon steel sheet was proposed, and the magnetostrictive loops along the material’s different magnetization directions were obtained. The single value curves describing the magnetostrictive property were abstracted. Aλ-（θB, Bmax） magnetostrictive mathematical model was built to describe the relationship between magnetostriction and magnetization, and a 2-D magnetostrictive surface was interpolated from the measured data. Using FORTRAN computer language, the finite element calculation program coupled with magnetostrictive model above was compiled, and the magnetostriction in the stator core of a synchronous generator was analyzed. The study shows that the non-oriented silicon steel sheet has the anisotropic magnetostriction property along arbitrary directions, and the measurement method and the mathematical model proposed in this paper can be effectively used to analyze magnetostrictive anisotropy of the silicon steel sheet.

关 键 词：各向异性磁致伸缩 硅钢片 数学模型 同步发电机 有限元分析 

分 类 号：TM301[电气工程—电机]