Updated on 2026/01/13

Information

 

写真a

 
OKUBO YUI
 
Organization
Faculty of Engineering Department of Marine Systems Engineering Assistant Professor
Title
Assistant Professor
Contact information
メールアドレス
External link

Research Areas

  • Frontier Technology (Aerospace Engineering, Marine and Maritime Engineering) / Marine engineering

Degree

  • Doctor of Philosophy in Engineering （ 2025.3 Yokohama National University ）

Research History

  • Kyushu University Faculty of Engineering Assistant Professor 

    2025.4 - Present

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Education

  • Yokohama National University   Graduate school of Engineering Science   Department of Mechanical Engineering and Materials Science

    2022.4 - 2025.3

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    Country：Japan

    Notes：博士課程後期

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  • Yokohama National University   Graduate school of Engineering Science   Department of Mechanical Engineering and Materials Science

    2020.4 - 2022.3

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    Country：Japan

    Notes：博士前期課程

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  • Yokohama National University   College of Engineering Science   建築都市環境系学科

    2016.4 - 2020.3

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    Country：Japan

    Notes：海洋空間のシステムデザインEP

Research Interests・Research Keywords

  • Research theme： 船舶海洋工学

    Keyword： 船舶海洋工学

    Research period： 2025

  • Research theme： システム設計

    Keyword： システム設計

    Research period： 2025

  • Research theme： 生産技術

    Keyword： 生産技術

    Research period： 2025

  • Research theme： 生産管理

    Keyword： 生産管理

    Research period： 2025

Awards

  • 優秀学生表彰

    2025.3   横浜国立大学 理工学府  

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  • Exemption from repayment for particularly outstanding performance (Full Exemption)

    2024.7   JASSO (Japan Student Services Organization)  

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  • 日本船舶海洋工学会奨励賞（乾賞)

    2024.5   日本船舶海洋工学会   船舶建造工程シミュレーションを用いた生産計画立案手法の現場適用に関する研究

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    Award type：Honored in official journal of a scientific society, scientific journal 

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  • 令和 4 年春季講演会若手優秀講演賞

    2022.11   日本船舶海洋工学会   船舶建造工程モデリングとプロセスシミュレーションを用いた生産計画立案手法の試運

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    Award type：Award from Japanese society, conference, symposium, etc.  Country：Japan

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  • 特に優れた業績による返還免除（半額免除）

    2022.7   日本学生支援機構  

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  • 横浜国立大学理工系創立100周年記念事業・学生参加イベントYNU理工系合同研究シンポジウム最優秀講演賞

    2022.3   横浜国立大学   現場データを利用したデジタルツイン造船工程シミュレーション手法の構築

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    Award type：Award from Japanese society, conference, symposium, etc. 

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  • 優秀学生表彰

    2022.3   横浜国立大学 理工学府  

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  • 成績優秀者表彰

    2022.3   横浜国立大学 理工学府  

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  • 日本船舶海洋工学会奨学褒賞

    2022.3   横浜国立大学   修士論文「船舶建造工程モデリングとプロセスシミュレーションを用いた造船所の生産計画立案に関する研究」

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  • 若手優秀ポスター賞

    2021.11   日本船舶海洋工学会   Function Design of Shipbuilding Factory Using Process Simulation

    大久保友結

  • 成績優秀者表彰

    2021.3   横浜国立大学理工学部  

    大久保友結

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Papers

  • Proposal of Advanced BOM for automatic update of shipbuilding production plans using process simulation Reviewed

    Okubo, Y; Gotoh, K; Mitsuyuki, T

    Ocean Engineering   343 ( 2 )   2026.1   （ ISSN:0029-8018 eISSN:1873-5258 ）

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    Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.oceaneng.2025.123262

    Web of Science

    Repository Public URL： https://hdl.handle.net/2324/7397145

  • Ship Production Planning Using Shipbuilding System Modeling and Discrete Time Process Simulation Reviewed

    Yui Okubo, Taiga Mitsuyuki

    Journal of Marine Science and Engineering   10 ( 2 )   176   2022.1   （ eISSN:2077-1312 ）

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    Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)   Publisher：MDPI AG  

    <jats:p>Production planning is an important factor for production efficiency in the shipyard. However, planning is currently executed by manual operations based on the experience of field workers because of the complexity of the target shipbuilding project. This paper proposes a method of creating a realistic production plan automatically by modeling the complex shipbuilding project and using the developed process simulation. Specifically, we propose a method to represent the target shipbuilding process by four system models—Product, Workflow, Workplace, and Team. By executing the developed process simulation using system models, a Gantt chart can be created as a realistic production plan. From the case studies of a virtual shipyard manufacturing a ship hull block, it can be said that the proposed method can create a good production plan considering the complexity of the target shipbuilding project. In addition, the proposed method can evaluate the bottleneck of the target shipyard and the re-allocation plan for workers quantitatively.</jats:p>

    DOI： 10.3390/jmse10020176

    DOI： 10.2534/jjasnaoe.37.115_references_DOI_ETFATCwVve6P8ENABiSCSjsCiC

    Scopus

    CiNii Research

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    Other Link： https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20K14962/

    Repository Public URL： https://hdl.handle.net/2324/7399679

  • Optimal Shipbuilding Production Planning through Modeling and Simulation of Complex Rules and Space Constraints Reviewed

    Okubo, Y., Mitsuyuki, T., & Gotoh, K.

    Practical Design of Ships and other Floating Structures(PRADS) 2025 Preprints   2025.10

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    Authorship：Lead author   Language：English   Publishing type：Research paper (international conference proceedings)  

    DOI： https://doi.org/10.5281/zenodo.17307186

    Repository Public URL： https://hdl.handle.net/2324/7397153

  • Optimal Shipbuilding Production Planning through Modeling and Simulation of Space Constraints and Complex Rules

    大久保友結, 満行泰河

    日本船舶海洋工学会講演会論文集   40   2025.5

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    Authorship：Lead author   Language：Japanese   Publishing type：Research paper (other academic)  

  • Development of Shipyard Production Planning Methods Using Process Modeling and Simulation

    大久保友結

    横浜国立大学   2025.3

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    Authorship：Lead author   Language：Japanese   Publishing type：Doctoral thesis  

    DOI： https://doi.org/10.18880/0002001891

  • Proposal for a Shipbuilding Process Data Structure & Simulation System for Automatic Updating of Production Plans

    Yui Okubo, Taiga Mitsuyuki

    ICCAS 2024: International Conference on Computer Applications in Shipbuilding   621 - 630   2024.9

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    Authorship：Lead author   Language：English   Publishing type：Research paper (international conference proceedings)  

    Repository Public URL： https://hdl.handle.net/2324/7399678

  • Automatic Generation of BOPs in Pipe Fabrication Process Using Graphical Data to Develop a Production Planning System

    三原 由依, 満行 泰河, 大久保 友結, 村上 拳太郎

    日本船舶海洋工学会講演会論文集   38   359 - 363   2024.5

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    Language：Japanese   Publishing type：Research paper (other academic)  

    DOI： https://doi.org/10.14856/conf.38.0_359

    Repository Public URL： https://hdl.handle.net/2324/7397147

  • Proposal for a Shipbuilding Process Data Structure and Simulation System for Automatic Updating of Production Plans

    大久保 友結, 満行 泰河

    日本船舶海洋工学会講演会論文集   38   371 - 377   2024.5

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    Authorship：Lead author   Language：Japanese   Publishing type：Research paper (other academic)  

    DOI： https://doi.org/10.14856/conf.38.0_371

    Repository Public URL： https://hdl.handle.net/2324/7397150

  • pDESy: A Python package for discrete time-event simulation to engineering project Reviewed

    Taiga Mitsuyuki, Yui Okubo

    Software Impacts   19   100621 - 100621   2024.3   （ ISSN:2665-9638 ）

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    Language：English   Publishing type：Research paper (scientific journal)   Publisher：Elsevier BV  

    This paper presents pDESy, an open-source Python package for modeling and discrete time-event simulation of the general engineering project. It aims to be the fundamental high-level building block for doing practical, real-world engineering project management by project modeling and simulation. The simulation model consists of four models: Product, Workflow, Workplace, and Team. By using these four models, we can perform an discrete time-event simulation using several types of priority rule. The package can be used to evaluate and design various engineering projects and develop detailed execution plans.

    DOI： 10.1016/j.simpa.2024.100621

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    Repository Public URL： https://hdl.handle.net/2324/7399674

  • Study of the practical application of production planning method using shipbuilding process simulation Reviewed

    大久保 友結, 満行 泰河

    日本船舶海洋工学会論文集   ( 37 )   115 - 123   2023.6   （ ISSN:1880-3717 ）

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    Authorship：Lead author   Language：Japanese   Publishing type：Research paper (scientific journal)   Publisher：東京 : 日本船舶海洋工学会  

    DOI： https://doi.org/10.2534/jjasnaoe.37.115

    CiNii Books

    CiNii Research

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    Repository Public URL： https://hdl.handle.net/2324/7397152

  • Application of Production Planning Methodology using Shipbuilding System Modeling and Process Simulation to a Real Shipyard

    Yui Okubo, Taiga Mitsuyuki

    Global Conference on Naval Architecture and Ocean Engineering 2022   2022.11

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    Authorship：Lead author   Language：English   Publishing type：Research paper (international conference proceedings)  

    Repository Public URL： https://hdl.handle.net/2324/7399675

  • Trial Operation of Production Planning Methodology Using Shipbuilding System Modeling and Process Simulation

    大久保 友結, 満行 泰河

    日本船舶海洋工学会講演会論文集   34   109 - 112   2022.3

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    Authorship：Lead author   Language：Japanese   Publishing type：Research paper (other academic)  

    DOI： https://doi.org/10.14856/conf.34.0_109

    Repository Public URL： https://hdl.handle.net/2324/7397151

  • 船舶建造工程モデリングとプロセスシミュレーションを用いた造船所の生産計画立案に関する研究

    大久保友結

    横浜国立大学   2022.3

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    Authorship：Lead author   Language：Japanese   Publishing type：Master’s thesis  

  • Study on Job Shop Scheduling for Keeping the Requested Shipping Sequence by Production System Modeling and Backward Simulation Reviewed

    Yui Okubo , Taiga Mitsuyuki

    Advances in Transdisciplinary Engineering   16   203 - 212   2021.10

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    Authorship：Lead author   Language：English   Publishing type：Research paper (international conference proceedings)  

    DOI： https://doi.org/10.3233/atde210099

    Repository Public URL： https://hdl.handle.net/2324/7399680

  • A Study on Multi-Objective Optimization of Production Plan using Shipbuilding Process Simulation

    満行 泰河, 大久保 友結

    日本船舶海洋工学会講演会論文集   30   155 - 158   2020.3   （ ISSN:1880-6538 ）

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    Language：Japanese   Publishing type：Research paper (other academic)  

    DOI： https://doi.org/10.14856/conf.30.0_155

    Repository Public URL： https://hdl.handle.net/2324/7397146

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Presentations

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Professional Memberships

  • 日本船舶海洋工学会

    2019.4 - Present

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Committee Memberships

  • 日本船舶海洋工学会   講演会実行委員会   Domestic

    2026.1 - Present   

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    Committee type：Academic society

  • 日本船舶海洋工学会   情報技術研究会   Domestic

    2025.12 - Present   

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    Committee type：Academic society

Academic Activities

  • 令和7年 日本船舶海洋工学会 秋季講演会 若手の会

    Role(s)： Planning, management, etc.

    大久保 友結, 奥田 隆輔, 鈴木 寛太郎, 脇田 康希   2025.11

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    Type：Academic society, research group, etc. 

  • 令和7年 日本船舶海洋工学会 春季講演会　若手の会

    Role(s)： Planning, management, etc.

    大久保友結, 鈴木寛太郎, 奥田 隆輔, 脇田 康希   2025.5

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    Type：Academic society, research group, etc. 

Other

  • 造船学術研究推進機構(REDAS) 研究奨学生

    2022.4 - 2024.3

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  • 横浜国立大学 理工学府 特別研究員/特特生

    2022.4 - 2024.3

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  • 横浜工業会 奨学生

    2022.4 - 2023.3

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Research Projects

  • 不確実性を考慮したデジタル造船工程管理手法の構築

    Grant number：24KJ1144  2024.4 - 2025.3

    日本学術振興会   科学研究費助成事業  特別研究員奨励費

    大久保友結

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    Authorship：Principal investigator  Grant type：Scientific research funding

  • Optimal Shipbuilding Production Planning through Modeling and Simulation of Complex Rules and Space Constraints

    2025.10

    九州大学　学術研究・産学官連携本部  国際学会派遣支援 

    大久保友結

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    Authorship：Principal investigator  Grant type：On-campus funds, funds, etc.

Social Activities

  • 令和７年度九州大学QURIES プログラム

    Role(s)：Advisor,　Organizing member

    2025.8

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    Audience：High school students

    Type：Seminar, workshop

  • 高大連携事業：金属解析セミナー（強度等検証による材料推定及び大型溶接構造物の構造様式）

    Role(s)：Advisor,　Organizing member

    福岡県立新宮高等学校 理数科1年  2025.7

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    Audience：High school students

    Type：Seminar, workshop

Travel Abroad

  • 2019.8 - 2019.9

    Staying countory name 1：Norway   Staying institution name 1：Norwegian University of Science and Technology Department of Marine Technology