摘要
在研究低温超磁致材料(cryogenic giant magnetostrictive materials,CGMM)磁-机-电的场强耦合特性和高温超导材料带(high temperature superconductor,HTS)各向异性的基础上,设计了高温超导励磁的低温超磁致致动器。结合有限元场耦合计算方法,利用遗传算法进行了优化计算,计算结果表明,可以找到一个最佳位置,在超磁致材料性能充分发挥的同时,使高温超导带的使用量最少。基于超导特性并结合CGMM耦合有限元分析模型的遗传算法以及CAD软件为以多场耦合转换材料为基础的微操作机构与器件的设计提供了有益的经验和可借鉴的方法。
An actuator of cryogenic giant magnetostnctwe materials (CGMM) excited by high temperature superconductor (HTS) is designed, taking into account both the coupled field characteristics of the CGMM and the anisotropy of the investigated Bi2223/Ag HTS tapes. Then an optimal structure, which costs the least HTS tapes while still make the CGMM to the state of saturation, is realized by combining the genetic algorithm (GA) with the coupled field iteration of finite element method (FEM). The algorithm and corresponding CAD software proved a effective tool for designing and studying devices constructed by coupled field materials or HTS.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2008年第18期138-143,共6页
Proceedings of the CSEE
基金
国家自然科学基金项目(50577057)
浙江省教育厅课题(20060023)~~
关键词
低温超磁致材料
场耦合叠代有限元
高温超导体
遗传算法
cryogenic giant magnetostrictive materials
coupled field iteration of FEM
high temperature superconductor
genetic algorithm