高橋則雄

Iron Losses of Silicon Steel due to Rotating Fluxes (Inclined Rotating Flux and Distorted One)

JaLCDOI	10.18926/15736
フルテキストURL	Mem_Sch_Eng_OU_14_1_15.pdf
著者	Ishihara Yoshiyuki\| Takahashi Norio\|
抄録	Characteristics of iron losses in silicon steel due to inclined rotating fluxes and distorted ones are described. Iron losses due to rotating fluxes have been measured at various conditions for grain-oriented and non-oriented silicon steels by using an improved thermistor-bridge method. Loss measurements indicate that the iron loss due to the inclined rotating flux is greater than that due to the non-inclined one. However, the iron loss due to the distorted rotating flux is not always greater than that due to the non-distorted one.
出版物タイトル	Memoirs of the School of Engineering, Okayama University
発行日	1979-12-01
巻	14巻
号	1号
開始ページ	15
終了ページ	28
ISSN	0475-0071
言語	英語
論文のバージョン	publisher
NAID	120002307734

Finite Element Analysis of Transformer Cores

JaLCDOI	10.18926/15762
フルテキストURL	Mem_Sch_Eng_OU_18_1_1.pdf
著者	Nakata Takayoshi\| Takahashi Norio\|
抄録	The quantitative analysis of localized flux distributions in transformer cores has become easy through the progress of numerical field calculations. In this paper, the effects of core constructions, joint configurations, magnetizing characteristics of materials on the flux distributions are examined using newly developed techniques such as a gap element, an approximate method for solving three-dimensional magnetic fields, the time periodicity finite element method, an efficient technique for treating hysteresis characteristics and so on. A method for the optimum design of transformer cores is also discussed. Main results obtained can be summarized as follows: (a) The building factor of the core made of higely-oriented silicon steel is larger than that of the conventional core. (b) The iron losses at joints are much affected by overlap lengths, number of laminations per stagger layer and a small irregularity of the arrangement of sheets. (c) It is clarified that examinations of the optimum construction of core and the most desirable magnetic characteristics of core material are possible using the finite element method.
出版物タイトル	Memoirs of the School of Engineering, Okayama University
発行日	1984-03-30
巻	18巻
号	1号
開始ページ	1
終了ページ	31
ISSN	0475-0071
言語	英語
論文のバージョン	publisher
NAID	120002307976

Physical meaning of gradФ in eddy current analysisusing magnetic vector potential

著者	Nakata, N.\| Takahashi, Norio\| Fujiwara, K.\|
発行日	1988-01-01
出版物タイトル	Magnetics
巻	24巻
号	1号
資料タイプ	学術雑誌論文

Improvements of the T-Ω method for 3-D eddy current analysis

著者	Nakata, Takayoshi\| Takahashi, Norio\| fujiwara, K.\| Okada, Y.\|
発行日	1988-1
出版物タイトル	Magnetics
巻	24巻
号	1号
資料タイプ	学術雑誌論文

3-D non-linear eddy current analysis using the time-periodic finite element method

著者	Nakata, Takayoshi\| Takahashi, Norio\| Fujiwara, Koji\| Ahagon, Akira\|
発行日	1989-09-05
出版物タイトル	Magnetics
巻	25巻
号	5号
資料タイプ	学術雑誌論文

Optimal design method of 3-D nonlinear magnetic circuit by using magnetization integral equation method

フルテキストURL	fulltext.pdf
著者	Takahashi, Norio\| Nakata, Takayoshi\| Uchiyama, N.\|
キーワード	CAD electromagnets magnetic circuits magnetic cores
備考	Published with permission from the copyright holder.this is the institute's copy, as published in Magnetics Conference, 1989. Digests of INTERMAG '89., International, 28-31 March 1989, Pages JD7. Publisher URL:http://ieeexplore.ieee.org/search/wrapper.jsp?arnumber=690338 Copyright © 1989 IEEE. All rights reserved.\|
発行日	1989-3
出版物タイトル	Magnetics Conference
資料タイプ	学術雑誌論文
言語	英語
OAI-PMH Set	岡山大学
DOI	10.1109/intmag.1989.690338

3-D non-linear eddy current analysis using the time-periodic finite element method

フルテキストURL	fulltext.pdf
著者	Nakata, Takayoshi\| Takahashi, Norio\| Fujiwara, Koji\| Ahagon, Akira\|
キーワード	eddy currents electromagnetic field theory electromagnetic induction finite element analysis power engineering computing
備考	Published with permission from the copyright holder. This is the institute's copy, as published in Magnetics Conference, 1989. Digests of INTERMAG '89., International, 28-31 March 1989, Pages JD9. Publisher URL:http://ieeexplore.ieee.org/search/wrapper.jsp?arnumber=690340 Copyright © 1989 IEEE. All rights reserved.\|
発行日	1989-3
出版物タイトル	Magnetics Conference
資料タイプ	学術雑誌論文
言語	英語
OAI-PMH Set	岡山大学
DOI	10.1109/intmag.1989.690340

Optimal design method of 3-D nonlinear magnetic circuit by using magnetization integral equation method

著者	Takahashi, Norio\| Nakata, Takayoshi\| Uchiyama, N.\|
発行日	1989-9
出版物タイトル	Magnetics
巻	25巻
号	5号
資料タイプ	学術雑誌論文

Factors affecting errors due to 2-D approximate analysis of 3-D magnetic fields with eddy currents [rotating machines]

著者	Takahashi, Norio\| Nakata, Takayoshi\| Fujiwara, K.\| Nishimura, T.\|
発行日	1991-11-01
出版物タイトル	Magnetics
巻	27巻
号	6号
資料タイプ	学術雑誌論文

3-D finite element analysis of coupling current in multifilamentary AC superconducting cable

著者	Takahashi, Norio\| Nakata, Takayoshi\| Fujii, Y.\| Muramatsu, Kazuhiro\| Kitagawa, M.\| Takehara, Jun\|
発行日	1991-9
出版物タイトル	Magnetics
巻	27巻
号	5号
資料タイプ	学術雑誌論文

Accuracy of Advanced Energy Method for Calculating Electromagnetic Force

フルテキストURL	fulltext.pdf
著者	Takahashi, Norio\| Nakata, Takayoshi\| Fujiwara, K.\| Moriwake, T.\|
備考	Published with permission from the copyright holder. This is the institute's copy, as published in Electromagnetic Field Computation, 1992. Digest of the Fifth Biennial IEEE Conference on, August 3-5, 1992, Pages WOA8-WOA8. Publisher URL:href="http://ieeexplore.ieee.org/search/wrapper.jsp?arnumber=720786" http://ieeexplore.ieee.org/search/wrapper.jsp?arnumber=720786 Copyright c 1992 IEEE.All rights reserved.\|
発行日	1992-08-03
出版物タイトル	Electromagnetic Field Computation
資料タイプ	学術雑誌論文
言語	英語
OAI-PMH Set	岡山大学
DOI	10.1109/cefc.1992.720786

A simple algorithm for adaptive refinement of tetrahedral meshes combined with edge elements

著者	Olszewski, Piotr\| Nakata, Takayoshi\| Takahashi, Norio\| Fujiwara, Koji\|
発行日	1992-09-04
出版物タイトル	Magnetics
巻	29巻
号	2号
資料タイプ	学術雑誌論文

Investigation of effectiveness of edge elements

著者	Takahashi, Norio\| Nakata, Takayoshi\| Fujiwara, K.\| Imai, T.\|
発行日	1992-3
出版物タイトル	Magnetics
巻	28巻
号	2号
資料タイプ	学術雑誌論文

Low loss transformer using rotating magnetic field

著者	Nakata, Takayoshi\| Takahashi, Norio\| Fujiwara, Koji\| Nakano, Masanori\| Nagao, M.\|
発行日	1992-4
出版物タイトル	Magnetics Conference
資料タイプ	学術雑誌論文

Study on cause of quench at joint between multifilamentary superconducting cable and copper plate using 3-D FEM

フルテキストURL	fulltext.pdf
著者	Takahashi, Norio\| Nakata, Takayoshi\| Fujii, Y.\| Funabiki, K.\| Takeo, M.\|
備考	Published with permission from the copyright holder. This is the institute's copy, as published in Magnetics Conference, 1992. Digests of Intermag '92., International, 13-16 April 1992, Pages 294-294. Publisher URL:http://ieeexplore.ieee.org/search/wrapper.jsp?arnumber=696477 Copyright © 1992 IEEE. All rights reserved.\|
発行日	1992-4
出版物タイトル	Magnetics Conference
開始ページ	294
終了ページ	294
資料タイプ	学術雑誌論文
言語	英語
OAI-PMH Set	岡山大学
論文のバージョン	publisher
DOI	10.1109/intmag.1992.696477

Study on cause of quenching at the joint between multifilamentary superconducting cable and normal conducting cable using 3D FEM

著者	Takahashi, Norio\| Nakata, Takayoshi\| Fujii, Y.\| Funaki, K.\| Takeo, M.\|
発行日	1992-9
出版物タイトル	Magnetics
巻	28巻
号	5号
資料タイプ	学術雑誌論文

Measurement of Magnetic characteristics in arbitrary directions of grain-oriented silicon steel

フルテキストURL	fulltext.pdf
著者	Nakata, Takayoshi\| Takahashi, Norio\| Fujiwara, Koji\| Nakano, Masanori\|
備考	Published with permission from the copyright holder. This is the institute's copy, as published in Magnetics Conference, 1993. INTERMAG '93., Digest of International , April 13-16, 1993, Pages CD-05-CD-05 . Publisher URL:http//ieeexplore.ieee.org/search/wrapper.jsp?arnumber=642170 Copyright © 1993 IEEE. All rights reserved.\|
発行日	1993-04-13
出版物タイトル	Magnetics Conference
資料タイプ	学術雑誌論文
言語	英語
OAI-PMH Set	岡山大学
DOI	10.1109/intmag.1993.642170

Magnetostriction measurements with a laser Doppler velocimeter

著者	Nakata, Takayoshi\| Takahashi, Norio\| Nakano, Masanori\| Muramatsu, Kazuhiro\| Miyake, Masahide\|
発行日	1994-11-01
出版物タイトル	Magnetics
巻	30巻
号	6号
資料タイプ	学術雑誌論文

Investigation of a model to verify software for 3-D static force calculation

著者	Takahashi, Norio\| Nakata, Takayoshi\| Morishige, H.\|
発行日	1994-9
出版物タイトル	Magnetics
巻	30巻
号	5号
資料タイプ	学術雑誌論文

Practical analysis of 3-D dynamic nonlinear magnetic field using time-periodic finite element method

著者	Nakata, Takayoshi\| Takahashi, Norio\| Fujiwara, Koji\| Muramatsu, Kazuhiro\| Ohashi, Hiromitsu\| Zhu, Hui Ling\|
発行日	1995-05
出版物タイトル	Magnetics
巻	31巻
号	3号
資料タイプ	学術雑誌論文

高橋 則雄