Development of High-Performance Electromagnetic Analysis for Design of Engineering Application of High-Temperature Superconductor

高温超导体工程应用设计高性能电磁分析的发展

• 批准号: 21560287
• 负责人: KAMITANI Atsushi
• 金额: $ 3万
• 依托单位: Yamagata University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2011
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21560287/
• 关键词: 電気機器; 超伝導機器; 高温超伝導体; 遮蔽電流密度; 数値シミュレーション; 酸化物高温超伝導体; 混合状態; クラック; 有限要素法; 非線形方程式; 酸化物超伝導体; ルンゲ・クッタ法; 非線形常微分方程式

Since evaluation of the shielding current density is indispensable to engineering applications of high-temperature superconductors (HTSs), various numerical methods have been so far developed for analyzing the shielding current density. However, all of the methods have been plagued by the following two fatal difficulties : (1) slow speed due to implicit schemes and (2) disability to treat HTS samples containing cracks or holes. In the present study, two novel numerical techniques, i. e. constitutive-relation-modification method and virtual-voltage method, are proposed for resolving the above two difficulties.

由于对高温超导体屏蔽电流密度的评估是高温超导体工程应用中不可缺少的，目前已经发展了各种各样的数值方法来分析屏蔽电流密度。然而，所有这些方法都存在以下两个致命的困难：(1)由于隐式方案而导致速度慢；(2)无法处理含有裂纹或孔的HTS样品。本研究提出了两种新的数值方法，即本构关系修正法和虚电压法来解决上述两个难题。

项目成果

Extension of Meshless Galerkin/Petrov-Galerkin Appmach without Using Lagrange Multipliers

不使用拉格朗日乘子的无网格伽辽金/彼得罗夫-伽辽金 Appmach 的扩展

• 发表时间: 2011
• 期刊: Plasma and Fusion Research
• 影响因子: 0.8
• 作者: 河埜慎吾;冨田朋幸;堀田昌志;羽野光夫;羽野光夫;A.Saitoh;A.Kamitani;A.Kamitani;A.Saitoh;A.Kamitani;T.Takayama;S.Ikuno;S.Ohshima;A.Kamitani
• 通讯作者: A.Kamitani

Experimantal and Numerical Investigations on Permanent Magnet Method for Measuring Critical Cur-rent Density in HTS Films

永磁法测量高温超导薄膜临界电流密度的实验和数值研究

• DOI: 10.1016/j.physc.2009.05.224
• 发表时间: 2009
• 期刊: Physica C
• 影响因子: 1.7
• 作者: S. Ikuno;T. Takayama;A. Kamitani;K. Umetsu;A. Saito;S. Ohshima
• 通讯作者: S. Ohshima

Numerical simulation of shielding current density in HTS : Application of high-performance method for calculating improper integral

HTS中屏蔽电流密度的数值模拟：计算不当积分的高性能方法的应用

• 发表时间: 2009
• 期刊: Physica C Vol.469
• 作者: T.Takayama;A.Kamitani;A.Tanaka;S.Ikuno
• 通讯作者: S.Ikuno

New Implementation Method for Essential Boundary Condition to Extended Element-Free Galerkin Method: Application to Nonlinear Problem

扩展无单元伽辽金法本质边界条件的新实现方法：在非线性问题中的应用

• DOI: 10.1585/pfr.6.2401089
• 发表时间: 2011
• 期刊: Plasma and Fusion Research
• 影响因子: 0.8
• 作者: Hiroyuki Miki;Toshiyuki Takagi;Takanori Takeno;Koshi Adachi;Julien Fontaine;Michel Belin;Sandrine Bec;Thierry Le Mogne;中谷彰宏;A.Saitoh
• 通讯作者: A.Saitoh

Numerical Simulation of Shielding Current Density in High-Temperature Superconducting Film : Influence of Film Edge on Permanent Magnet Method

高温超导薄膜中屏蔽电流密度的数值模拟：薄膜边缘对永磁法的影响

• DOI: 10.1109/tmag.2011.2175373
• 发表时间: 2012
• 期刊: IEEE Trans. Magn
• 作者: A. Kamitani;T. Takayama
• 通讯作者: T. Takayama