Development of Methods for Analyzing Eddy Currents in Moving Conductors and Verification
移动导体涡流分析方法的开发和验证
基本信息
- 批准号:06452201
- 负责人:
- 金额:$ 3.58万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for General Scientific Research (B)
- 财政年份:1994
- 资助国家:日本
- 起止时间:1994 至 1995
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The methods for analyzing 3-D eddy currents in moving conductors are developed and the various methods are compared with each other. The acceleration of the ICCG method which is used as solver for large linear equation systems is also investigated. The results obtained can be summarized as follows :1.Development of Methods for Analyzing Eddy Currents in Moving ConductorsThe methods for analyzing magnetic circuits with moving conductors are systematically classified and the preferable method for each circuit is shown. The treatment of eddy current term using moving and fixed coordinate systems are investigated and the software is developed.2.Comparison of Various MethodsThe methods using moving and fixed coordinate systems are compared with each other from the standpoints of accuracy, memory requirement and CPU time by using a verification model. The results obtained can be described as follows :(1) In the transient analysis, the moving coordinate system is superior from the standpoints of accuracy, computer storage and CPU time.(2) In the dc and ac steady state analysis for large Peclet numbers, spurious oscillations occur when using a fixed coordinate system with ordinary Galerkin finite element method. The solution using a moving coordinate system, however, can be obtained with a high reliability. The optimal value of the time step for the moving coordinate system is also clarified.3.Acceleration of Solving Large Linear Equation SystemsThe algorithm for the calculation of the distribution of non-zero entries in ICCG method is improved in order to accelerate the computation. It is shown that the convergence characteristics of the ICCG method for the analysis using magnetic vector potential and edge elements can be considerably massively improved by introducing the electric scalar potential.
发展了运动导体中三维涡流的分析方法,并对各种方法进行了比较。本文还研究了用于求解大型线性方程组的ICCG方法的加速问题。本文的主要工作如下:1.运动导体涡流分析方法的发展本文对运动导体磁路分析方法进行了系统的分类,并指出了各种磁路分析方法的优缺点。研究了动坐标系和固定坐标系下涡流项的处理方法,并开发了相应的软件。2.各种方法的比较通过验证模型,从精度、内存需求和CPU时间等方面对动坐标系和固定坐标系下的涡流项处理方法进行了比较。(1)在瞬态分析中,从精度、计算机存储量和CPU时间等方面考虑,动坐标系具有上级优势。(2)在大Peclet数的直流和交流稳态分析中,当使用固定坐标系和普通Galerkin有限元法时,会出现寄生振荡。然而,可以以高可靠性获得使用移动坐标系的解。还明确了移动坐标系时间步长的最佳值。3.求解大型线性方程组的加速改进了ICCG方法中非零项分布的计算算法,以加速计算。结果表明,引入标量位后,矢量磁位和棱边元的ICCG法的收敛特性得到了显著改善。
项目成果
期刊论文数量(44)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
K.Fujiwara and T.Nakata: "Convergence Characteristic of the ICCG Method in Finite Element Software Using A-phi Method and Edge Element" Papers of National Convention of IEE of Japan. 1070. (1995)
K.Fujiwara和T.Nakata:“使用A-phi方法和边缘元的有限元软件中ICCG方法的收敛特性”日本IEE全国大会论文。
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K.Fujiwara and T.Nakata: "Improvement of Convergence Characteristic of ICCG Method for A-phi Method Using Edge Element" IEEE Trans.on Magnetics. vol.32, no.3. (1996)
K.Fujiwara 和 T.Nakata:“使用边缘单元改进 A-phi 方法的 ICCG 方法的收敛特性”IEEE Trans.on Magnetics。
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藤原 耕二,中田 高義: "ICCG法に必要な係数マトリクス中の非零要素分布の高速計算法" 平6電気・情報関連学会中国支部連合大会. (1994)
Koji Fujiwara、Takayoshi Nakata:“ICCG方法所需的系数矩阵中非零元素分布的高速计算方法”中国电气和信息相关学会分会平成6次会议(1994年)。
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中田高義,高橋則雄,藤原耕二: "Method for Analyzing Eddy Currents in Moving Conductors" Electrical Engineering in Japan. 114. 102-114 (1994)
Takayoshi Nakata、Norio Takahashi、Koji Fujiwara:“分析移动导体中涡流的方法”日本电气工程。114. 102-114 (1994)。
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高橋 則雄: "リニア電磁駆動装置の解析手法調査専門委員会活動中間報告(1)-リニア電磁駆動装置における解析手法の動向-" 電気学会リニアドライブ研究会資料. 133-142 (1994)
高桥则夫:《线性电磁驱动分析方法专家委员会活动临时报告(1)——线性电磁驱动分析方法的趋势》日本电气工程师学会线性驱动研究组资料133-142。 (1994)
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NAKATA Takayoshi其他文献
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{{ truncateString('NAKATA Takayoshi', 18)}}的其他基金
Standard measuring method of amorphous magnetic materials
非晶磁性材料标准测量方法
- 批准号:
09044184 - 财政年份:1997
- 资助金额:
$ 3.58万 - 项目类别:
Grant-in-Aid for international Scientific Research
Efficient Use of Steels and Development of Low Loss Machines
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- 批准号:
06045031 - 财政年份:1994
- 资助金额:
$ 3.58万 - 项目类别:
Grant-in-Aid for international Scientific Research
Development of Single Sheet Tester for Measuring Magnetic Characteristics of Amorphous Magnetic Metals
非晶磁性金属磁特性单片测试仪的研制
- 批准号:
06555080 - 财政年份:1994
- 资助金额:
$ 3.58万 - 项目类别:
Grant-in-Aid for Developmental Scientific Research (B)
Development of 3-D Numerical Analysis and Applications
3-D 数值分析和应用的开发
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04045036 - 财政年份:1992
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$ 3.58万 - 项目类别:
Grant-in-Aid for international Scientific Research
Verification of Softwares for 3-D Eddy Current Analysis
3D 涡流分析软件验证
- 批准号:
01302031 - 财政年份:1989
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$ 3.58万 - 项目类别:
Grant-in-Aid for Co-operative Research (A)
Development of Nd-Fe-B Magnet Generator for Small Hydraulic Power Station
小型水电站用钕铁硼永磁发电机的研制
- 批准号:
62550207 - 财政年份:1987
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$ 3.58万 - 项目类别:
Grant-in-Aid for General Scientific Research (C)
Development of Program of 3-D Finite Element Method for Analyzing Magnetic Fields in Electrical Machines Excited from Voltage Sources
开发用于分析电压源激励电机中磁场的 3-D 有限元方法程序
- 批准号:
62850046 - 财政年份:1987
- 资助金额:
$ 3.58万 - 项目类别:
Grant-in-Aid for Developmental Scientific Research
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