Hiruma, Shingo(Graduate School of Engineering, Division of Electrical Engineering) | Activity Database on Education and Research, Kyoto University

Hiruma, Shingo

Graduate School of Engineering, Division of Electrical Engineering Assistant Professor

Last Updated :2025/05/27

Basic Information

Faculty

Faculty of Engineering

Professional Memberships

To Present
International COMPUMAG Society

From Dec. 2021, To Present
IEEE

From 2018, To Present
日本シミュレーション学会

From 2017, To Present
電気学会

Academic Degree

博士(情報科学)(北海道大学)

修士(情報科学)(北海道大学)

Research History

From Apr. 2021, To Present
京都大学大学院工学研究科電気工学専攻, 助教

From Apr. 2019, To Mar. 2021
日本学術振興会特別研究員（DC1）

Language of Instruction

Japanese

ID,URL

ORCID ID
0000-0002-9399-5822
J-Global ID
202101015477814825
Researcher number
90909847
External link
https://sites.google.com/view/shingo-hiruma

researchmap URL

https://researchmap.jp/shingo_hiruma

Last Updated :2025/05/27

Research

Research Interests

電磁界解析

Topology optimization

Model order reduction

Finite element method

Research Areas

Manufacturing technology (mechanical, electrical/electronic, chemical engineering), Electrical power engineering

Papers

Homogenization Method Based on Cauer Ladder Network Representation of Unit Cell
Shingo Hiruma; Yasuhito Takahashi; Tetsuji Matsuo
IEEE Transactions on Magnetics, 2024

Error Estimation of the Cauer Ladder Network Method for the Time-Domain Analysis and Its Application to a Multiport System
Miwa Tobita; Stéphane Clénet; Shingo Hiruma; Wei Chen; Tetsuji Matsuo
IEEE Transactions on Magnetics, Dec. 2024

Time-Domain Homogenization of Windings Using B-Input Cauer Ladder Network Method
Yasuhito Takahashi; Shingo Hiruma; Koji Fujiwara; Satoshi Imamori
IEEE Transactions on Magnetics, 2024

Estimation of Condition Number of Quasi-Static Darwin Model
Shingo Hiruma; Takeshi Mifune; Tetsuji Matsuo
IEEE Transactions on Magnetics, Dec. 2024

Topology and parameter optimization of IPM motor considering mechanical strength by stress and connection constraints
Kou Takenouchi; Shingo Hiruma; Takeshi Mifune; Tetsuji Matsuo
COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, 28 Jun. 2024

Truncation Error Formula for Multi-Port Cauer Ladder Networks
Hideaki Nagamine; Shingo Hiruma; Takeshi Mifune; Tetsuji Matsuo
IEEE Transactions on Magnetics, 2024

Effective Data-driven Method Based on Bayesian Approach for Performance Estimation of Wound-field Motors
Tie yang Zhao; Yuki Hidaka; Shingo Hiruma; Hiroyuki Kaimori
IEEJ Journal of Industry Applications, 2024, Peer-reviewed

Convergence Analysis of the Cauer Ladder Network Method using Eigenfunction Expansion
H. Nagamine; S. Hiruma; T. Mifune; T. Matsuo
2022 IEEE 20th Biennial Conference on Electromagnetic Field Computation (CEFC), 24 Oct. 2022

Henrici–Pflüger-Type Error Estimators for the Cauer Ladder Network Representation
Hideaki Nagamine; Shingo Hiruma; Takeshi Mifune; Tetsuji Matsuo
IEEE Transactions on Magnetics, Mar. 2024, Peer-reviewed

Port Reduction of Multiport Cauer Ladder Network
Tetsuji Matsuo; Toshihiro Ozeki; Shingo Hiruma; Takeshi Mifune
IEEE Transactions on Magnetics, 2023, Peer-reviewed

Extended Finite Element Method Enhanced by Exact Boundary Representation for Analysis of Eddy Currents
Shingo Hiruma
IEEE Transactions on Magnetics, 2023, Peer-reviewed, Lead author

Extended Finite Element Method for Calculation of Eddy Currents at High Frequencies
Shingo Hiruma
IEEE TRANSACTIONS ON MAGNETICS, May 2023, Peer-reviewed, Lead author

Error Estimation of the Cauer Ladder Network Method Based on Eigenfunction Expansion
Hideaki Nagamine; Shingo Hiruma; Takeshi Mifune; Tetsuji Matsuo
IEEE TRANSACTIONS ON MAGNETICS, May 2023, Peer-reviewed

Time-Domain Homogenized Finite Eddy Current Analysis Using Recursive Convolution Method
Yuki Sato; Shingo Hiruma; Hajime Igarashi; Hirokazu Matsumoto
IEEE Transactions on Magnetics, May 2023, Peer-reviewed

Error Estimator for Cauer Ladder Network Representation
Shingo Hiruma; Stephane Clenet; Hajime Igarashi; Thomas Henneron
IEEE Transactions on Magnetics, Sep. 2022, Peer-reviewed, Lead author

Fast Time-Domain Analysis of Darwin Model of Maxwell’s Equations Using Arnoldi-Based Model Order Reduction
Shingo Hiruma; Hajime Igarashi
IEEE Transactions on Magnetics, Sep. 2022, Peer-reviewed, Lead author

Novel Hybridization of Parameter and Topology Optimizations: Application to Permanent Magnet Motor
Shingo Hiruma; Makoto Ohtani; Shingo Soma; Yoshihisa Kubota; Hajime Igarashi
IEEE Transactions on Magnetics, 2021, Peer-reviewed, Lead author

Model Order Reduction for Linear Time-Invariant System With Symmetric Positive-Definite Matrices: Synthesis of Cauer-Equivalent Circuit
Shingo Hiruma; Hajime Igarashi
IEEE Transactions on Magnetics, Mar. 2020, Peer-reviewed, Lead author

Synthesis of Equivalent Circuit from Homogenized FE Equation using Model Order Reduction
Shingo Hiruma; Hajime Igarashi
IEEJ Transactions on Power and Energy, 01 Feb. 2020, Peer-reviewed, Lead author

Time-Domain Analysis of Magnetically Shielded Wire Coils Using Homogenized Finite-Element Method
Shogo Fujita; Shingo Hiruma; Hajime Igarashi
IEEE Transactions on Magnetics, Feb. 2020, Peer-reviewed

Homogenization Method Based on Cauer Circuit via Unit Cell Approach
Shingo Hiruma; Hajime Igarashi
IEEE Transactions on Magnetics, Feb. 2020, Peer-reviewed, Lead author

Time-Domain Analysis of Homogenized Finite-Element Method for Eddy Current Analysis With Reduced Unknown Variables
Shingo Hiruma; Hajime Igarashi
IEEE Transactions on Magnetics, Jan. 2020, Peer-reviewed, Lead author

Fast computation of copper and iron losses using model order reduction
Shingo Hiruma; Hajime Igarashi
International Journal of Applied Electromagnetics and Mechanics, 30 May 2019, Peer-reviewed, Lead author

Eddy Current Analysis of Litz Wire Using Homogenization-Based FEM in Conjunction With Integral Equation
Shingo Hiruma; Yoshitsugu Otomo; Hajime Igarashi
IEEE Transactions on Magnetics, Mar. 2018, Peer-reviewed, Lead author

Fast 3-D Analysis of Eddy Current in Litz Wire Using Integral Equation
Shingo Hiruma; Hajime Igarashi
IEEE Transactions on Magnetics, Jun. 2017, Peer-reviewed, Lead author

Misc.

A study of B-input Cauer ladder network method and its application to unit cell-based homogenization method
比留間真悟; 高橋康人; 松尾哲司
電気学会研究会資料(Web), 2024

Simplification of Foster Circuits Based on Wasserstein Metric
長嶺英朗; 比留間真悟; 美舩健; 松尾哲司
電気学会電子・情報・システム部門大会(Web), 2023

Henrici-Pfluger型誤差限界を用いたCLN法の精度評価に関する検討—A Study of the Accuracy of the CLN method using Henrici-Pfluger Error Nounds—静止器/回転機合同研究会・電磁界数値計算技術とその応用
長嶺英朗; 比留間真悟; 美舩健; 松尾哲司
電気学会研究会資料. SA / 電気学会静止器研究会 [編], 02 Mar. 2023

円形導体の表皮・近接効果のための拡張有限要素法を用いた渦電流解析に関する検討—A study of eddy current analysis using extended finite element method—静止器/回転機合同研究会・電磁界数値計算技術とその応用
比留間真悟
電気学会研究会資料. RM / 電気学会回転機研究会 [編], 02 Mar. 2023

単層ニューラルネットワークを用いた代替磁束モデル生成におけるd軸磁束の推定精度向上に関する基礎検討—Basic Study on Improvement of d-axis Flux Estimation Accuracy in Alternative Magnetic Flux Model Generated by Neural Network—静止器/回転機合同研究会・電磁界数値計算技術とその応用
日高勇気; 趙鉄陽; 比留間真悟; 貝森弘行; 江川みち; 松下嘉子
電気学会研究会資料. SA / 電気学会静止器研究会 [編], 30 Sep. 2022

拡張有限要素法を用いた渦電流解析に関する検討—A study of eddy current analysis using extended finite element method—静止器/回転機合同研究会・電磁界数値計算技術とその応用
比留間真悟
電気学会研究会資料. RM / 電気学会回転機研究会 [編], 29 Sep. 2022

CLN法のための誤差推定手法の数理的背景に関する考察—A study of mathematical background of an error estimator for CLN method—静止器/回転機合同研究会・電磁界数値計算技術とその応用
比留間真悟; 松尾哲司
電気学会研究会資料. SA / 電気学会静止器研究会 [編], 07 Mar. 2022

固有関数展開を用いたCauer Ladder Network法の誤差解析に関する一検討—A Study of Error Bounds for the Cauer Ladder Network Method using Eigenfunction Expansion—静止器/回転機合同研究会・電磁界数値計算技術とその応用
長嶺英朗; 比留間真悟; 美舩健; 松尾哲司
電気学会研究会資料. SA / 電気学会静止器研究会 [編], 07 Mar. 2022

渦電流と寄生容量を考慮した準定常場解析の基礎検討(その2)—A study on quasi-static electromagnetic field analysis including eddy currents and capacitive effects(2)—静止器/回転機合同研究会・電磁界数値計算技術とその応用
比留間真悟; 五十嵐一
電気学会研究会資料. SA / 電気学会静止器研究会 [編], Mar. 2021

A study on model order reduction for Darwin approximation of Maxwell’s equations
比留間真悟
電気学会研究会資料(Web), 2021

Multi-material Topology Optimization of Permanent Magnet Motor with Arbitrary Adjacency Relationship of Materials
Hayaho Sato; Shingo Hiruma; Hajime Igarashi
CEFC 2020 - Selected Papers from the 19th Biennial IEEE Conference on Electromagnetic Field Computation, 16 Nov. 2020

渦電流と寄生容量を考慮した準定常場解析の基礎検討—A study on quasi-static electromagnetic field analysis including eddy currents and capacitive effects—静止器回転機合同研究会・電磁界数値計算技術とその応用
比留間真悟; 五十嵐一
電気学会研究会資料. SA / 電気学会静止器研究会 [編], 03 Sep. 2020

Topology Optimization of PM Motors: representation of different magnetizations
佐藤駿輔; 比留間真悟; 岡本和也; 五十嵐一
電気学会全国大会講演論文集(CD-ROM), 2020

Cauer circuit representation of leakage impedance of transformer winding using complex permeability
比留間真悟; 五十嵐一
電気学会全国大会講演論文集(CD-ROM), 2020

均質化有限要素解析による時間領域解析 : コイル巻線渦電流損失解析への適用—Time-domain analysis using homogenization-based finite element method : Application to analysis of eddy current loss in coil winding—静止器回転機合同研究会・電磁界数値計算技術とその応用
比留間真悟; 五十嵐一
電気学会研究会資料. SA / 電気学会静止器研究会 [編], 05 Mar. 2019

IPMモータの複数材料トポロジー最適化
佐藤駿輔; 比留間真悟; 五十嵐一
電気学会電子・情報・システム部門大会講演論文集(CD-ROM), 2019

セイシキカイテンキゴウドウケンキュウカイ・デンジカイスウチケイサンギジュツ、イッパン
ヒルマシンゴ; イガラシハジメ
電気学会研究会資料. SA / 電気学会静止器研究会 [編], 23 Jan. 2018

Time-domain analysis using homogenization-based finite element method: Continued fraction representation of complex permeability of unit cell
比留間真悟; 五十嵐一
電気学会研究会資料, 2018

伝達関数のStieltjes連分数展開による電磁機器の等価回路生成
比留間真悟; 五十嵐一
電気学会電子・情報・システム部門大会講演論文集(CD-ROM), 2018

Fast three-dimensional analysis of eddy currents in Litz wire using integral equation
Shingo Hiruma; Hajime Igarashi
IEEE CEFC 2016 - 17th Biennial Conference on Electromagnetic Field Computation, 12 Jan. 2017

自己随伴Lanczos法を用いた伝達関数の連分数近似
比留間真悟; 五十嵐一
電気・情報関係学会北海道支部連合大会講演論文集(CD-ROM), 2017

Multi-material and multi-objective optimization of IPM motor considering constraints
林翔吾; 比留間真悟; 五十嵐一
MAGDAコンファレンス講演論文集, 2020

Synthesis of equivalent circuit of a system including macroscopic permeability
比留間真悟; 五十嵐一
電気学会研究会資料. RM, 21 Sep. 2017

Integral equation using complex permeability : analysis of fine conductive lines
比留間真悟; 藤田祥伍; 五十嵐一
電気学会研究会資料. RM, 07 Sep. 2016

動的モード関数のStieltjes連分数およびCauer回路表示について (諸科学分野を結ぶ基礎学問としての数値解析学)
比留間真悟; 五十嵐一
数理解析研究所講究録, Jul. 2020
Access this misc :

Simulation Methods for Power Inductors : Homogenization and Model Order Reduction
五十嵐一; 比留間真悟; 佐藤駿輔
まぐね = Magnetics Japan, 2020

Presentations

Introducing Extended Finite Element Approaches in Eddy Currents Analysis
Shingo Hiruma
ICIAM 2023, 21 Aug. 2023

Introducing extended finite element approaches in analysis of high-frequency electromagnetic devices
IEEE札幌セクション講演会, 04 Jun. 2023

均質化における連分数表示の活用
比留間真悟
材料科学における幾何と代数III, 04 Sep. 2022

FreeFEMで学ぶ数値解析入門
比留間真悟
低温工学・超電導学会学生研究交流会, 25 Feb. 2022

External funds: Kakenhi

Development of a nonlinear reduced-order model for high-frequency inductors considering eddy currents and parasitic capacitance
Grant-in-Aid for Early-Career Scientists
Basic Section 21010:Power engineering-related
Kyoto University
Shingo Hiruma
From 01 Apr. 2022, To 31 Mar. 2024, Project Closed
モデル縮約法;ダーウィンモデル;ダーウィン近似;渦電流解析;拡張有限要素法;条件数;高周波インダクタ;寄生容量;低次元モデリング;縮約モデル;有限要素法;均質化法;時間領域解析
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22K14237/

トポロジー最適化におけるハイパーパラメタ探索のためのメタ最適化アルゴリズムの開発
Grant-in-Aid for Early-Career Scientists
Basic Section 21010:Power engineering-related
Kyoto University
比留間真悟
From 01 Apr. 2024, To 31 Mar. 2028, Granted
トポロジー最適化;進化計算;永久磁石同期モータ;レベルセット法;機械学習
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-24K17261/

Last Updated :2025/05/27

Education

Teaching subject(s)

From 01 Apr. 2024, To 31 Mar. 2025
Advanced Practice of Electrical and Electronic Engineering
6202, Fall, Faculty of Engineering, 2

From 01 Apr. 2023, To 31 Mar. 2024
Advanced Practice of Electrical and Electronic Engineering
6202, Fall, Faculty of Engineering, 2

From 01 Apr. 2022, To 31 Mar. 2023
Advanced Practice of Electrical and Electronic Engineering
6202, Fall, Faculty of Engineering, 2

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