Ibaraki University's
College of Engineering
Department of Electrical and Electronic Engineering

Associate Professor

SODA Naoya


Career

  1. Ibaraki University, Research Assistant 2000/01-2005/06
  2. Ibaraki University, Lecturer 2005/07-2009/03
  3. 茨城大学 准教授 2009/04-Present

Academic background

  1. Oita University Faculty of Engineering 電気工学科 1994 Graduated
  2. Oita University Graduate School, Division of Engineering 物質生産工学専攻 Doctor course 1999 Completed

Academic degrees

  1. 博士(工学) Oita University

Current state of research and teaching activities

Measurement of vector magnetic properties, and magnetic field analysis using vector magnetic properties
We carry out the magnetic field analysis in consideration of the vector magnetic properties of an electrical steel sheet, and clarify the iron loss distribution in an electrical steel sheet of electrical machines.
Furthermore, we measure an iron loss in an iron core of electric machines by using vector magnetic measurement technology.

Research Areas

  1. Electromagnetic field analysis
  2. ベクトル磁気特性の測定
  3. 磁界解析による最適設計
  4. Modeling of nonlinear magnetic properties

Research keywords

  1. FEM, Modeling of nonlinear magnetic properties, optimal design
  2. ベクトル磁気特性計測、鉄損測定

Subject of research

  1. ベクトル磁気特性の測定および鉄損評価 2013-Present
  2. Magnetic field analysis and iron loss evaluation in consideration of vector magnetic properties ベクトル磁気特性を導入した磁界解析を行うことにより、電気機器鉄心内の鉄損分布や磁束密度ベクトルおよび磁界強度ベクトルの関係を正しく評価することができる。 2010-Present
  3. Optimization of MRI Coil design by using Stepwise Refinement Method 新しく提案する段階的詳細化法を用いてMRI静磁場コイルの最適設計を行う。 2005-2009
  4. The demagnetizing factor for various rotational symmetry shape 種々の回転対称形状における反磁界係数を表面磁荷法により高精度に求める。 2002-2007
  5. The Edge Demagnetizing Fields Analyses by using The Surface Magnetic Charge Simulation Method 表面磁荷法により端部の反磁界分布を求め、端部特性を明らかにする。 2000-2002

Proposed theme of joint or funded research

  1. 電磁鋼板におけるベクトル磁気測定 (キーワード) 磁気測定、鉄損,ヒステリシス損,損失評価 Wish to undertake joint research with industry and other organizations including private sector. Commisioned research,Joint research
  2. 電磁鋼板を利用する電気機器の鉄損解析 (キーワード) 鉄損,ヒステリシス損,磁界解析,損失評価 Wish to undertake joint research with industry and other organizations including private sector. Technical consultation,Commisioned research,Joint research
  3. optimum design by using magnetic field analysis (キーワード) magnetic field analysis, optimum design Wish to undertake joint research with industry and other organizations including private sector. Technical consultation
  4. 磁界解析による機器構造評価 (キーワード) 磁界解析,数値解析,シミュレーション,設計,評価 Wish to undertake joint research with industry and other organizations including private sector. Technical consultation,Commisioned research,Joint research

Research Projects (Competitive Research Funds)

  1. パワー密度が世界最高の小型アクチュエータの開発(平成28年度) Others 共同研究 JAXA(宇宙航空研究開発機構:宇宙探査イノベーションハブ) 2016/04/01-2017/03/31
  2. パワー密度が世界最高の小型アクチュエータの開発(平成27年度) Others 共同研究 JAXA(宇宙航空研究開発機構:宇宙探査イノベーションハブ) 2016/02/01-2016/03/31
  3. インバータを使用しないプレミアム効率単相永久磁石モータの最適設計 Science research expense 2013/04/01-2016/03/31

Papers

  1. Research paper (scientific journal) Joint Magnetic Field Analysis of Self-propelled Rotary Actuator's Stator in Consideration of the Rolling Direction of the Steel Sheet Naoya Soda, Masato Enokizono IEEE Transactions on Magnetics 52/ 3, Article #:7000404 2016/03
  2. Research paper (scientific journal) Joint Iron Loss Analysis by Using Complex E&S Modeling Expressed as a Function of Amplitude and Phase Difference of Magnetic Flux Density Naoya Soda, Masato Enokizono Journal of the Japan Society of Applied Electromagnetics and Mechanics 22/ 2, 306-311 2014/06/10 0919-4452
  3. Research paper (scientific journal) Joint Iron loss analysis of EI-shaped iron-core inductor considering vector magnetic property Naoya SODA, Hiroshi ADACHI PRZEGLĄD ELEKTROTECHNICZNY(Electrical Review)ISSN 0033-2097 2011/ 9b, 81-84 2011/09 0033-2097
  4. Research paper (scientific journal) Joint An Experimental Decision of Field Parameter for Hard Manetic Materials Using Minor Loops T. Horii, T. Yoshimura, T. Kimura, N. Soda, K. Kurihara Journal of the Magnetics Society of Japan 35/ 1, 17-21 2011/01/14
  5. Research paper (international conference proceedings) Iron loss analysis of EI-shaped iron-core inductor considering vector magnetic property Naoya Soda, Hiroshi Adachi Digests of 11th International Workshop on 1&2 Dimensional Magnetic Measurement and Testing 36 2010/11/04

Research presentations

  1. Oral presentation(general) 電磁鋼板の圧延方向を考慮した自走型アクチュエータの有限要素解析 第24回電気学会東京支部茨城支所研究発表会 2016/12/17
  2. Oral presentation(general) ベクトル磁気特性を考慮した有限要素法による鉄損解析 第24回電気学会東京支部茨城支所研究発表会 2016/12/17
  3. Design of motor stator core shape considering iron loss reduction by using vector magnetic properties 第25回MAGDAコンファレンスin桐生 2016/11/24
  4. Poster presentation Utilization Method of Electrical Steel Sheets on Stator of Self-propelled Rotary Actuator ICEM2016 2016/09/04
  5. Symposium workshop panel(nominated) Trend of Electromagnetic Steel Sheet Utilization Technique and Possibility of Railroad Application 平成28年電気学会全国大会 2016/03/16

Intellectual property rights

  1. Utility design バイパス磁路式リアクトル 実願2009-006522 2009/09/11 登録実用新案第3155926号 2009/11/18

Prizes

  1. 優秀発表賞(指導学生) ベクトル磁気特性を考慮した有限要素法による鉄損解析 2016/12/17

Alloted class

  1. 基礎電気物理入門
  2. 電気電子工学実験Ⅱ
  3. 電磁界解析特論Ⅰ
  4. 電磁界解析特論Ⅱ
  5. 電気磁気学Ⅱおよび演習

Memberships of academic societies

  1. IEEE 2007/09-Present
  2. 電気学会 1998/10/17-Present
  3. 日本AEM学会 1998-Present
  4. 日本応用磁気学会

Committee Career

  1. 電気学会 東京支部茨城支所委員 2014/06/09-2016/05/31
  2. 電気学会 電力用磁性材料の高度活用技術調査専門委員会 2014/04/01-2017/03/31

Joint / funded research

  1. 新型リアクトルの開発 2013/09-2014/03 Commissioned research by the investment
  2. 直流電流測定装置の開発 2009/09-2010/03 Commissioned research by the investment
  3. バイパス磁路式リアクトルの開発 2008/09-2009/03 Commissioned research by the investment