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Affiliation |
Faculty of Engineering, Division of Systems Research |
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Job Title |
Professor |
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Research Fields, Keywords |
Structural Analysis, Structural Design, Hull Structural Dynamics |
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Mail Address |
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Related SDGs |
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OKADA Tetsuo
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The Best Research Achievement in Research Career 【 display / non-display 】
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【Book】 Design of Ship Hull Structures – A Practical Guide for Engineers 2009.01
【Published Thesis】 Optimization of ship structural design by genetic algorithm 1992.05
【Published Thesis】 On Board Measurement of Stresses and Deflections of a Post-Panamax Containership and its Feedback to Rational Design 2006.12
The Best Research Achievement in the last 5 years 【 display / non-display 】
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【Published Thesis】 A study on scantling formulae of plate members due to lateral pressure under the effect of axial loads(MARINE STRUCTURES) 2021.11
【Published Thesis】 A study on whipping related double bottom response as well as its statistical characteristics based on full-scale measurements 2021.09
【Book】 Strength of Materials - Fundamentals for structural strength design 2021.04
【Book】 Practical Design of Ships and Other Floating Structures: Proceedings of the 14th International Symposium, PRADS 2019, September 22-26, 2019, Yokohama, Japan- Volume I 2021
【Published Thesis】 Strength evaluation of intersection between stiffeners and primary supporting members in double hull structure 2020.11
Education 【 display / non-display 】
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1980.4-1986.3
The University of Tokyo Naval Architecture Graduated
Campus Career 【 display / non-display 】
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2015.1
Duty Yokohama National UniversityFaculty of Engineering Division of Systems Research Professor
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2021.4
Concurrently Yokohama National UniversityInterfaculty Graduate School of Innovative and Practical Studies Professor
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2018.4
Concurrently Yokohama National UniversityGraduate school of Engineering Science Department of Mechanical Engineering, Materials Science and Ocean Engineering Professor
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2017.4
Concurrently Yokohama National UniversityCollege of Engineering Science Department of Mechanical Engineering, Materials Science and Ocean Engineering Professor
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2016.1-2018.3
Concurrently Yokohama National UniversityCenter for Oceanic Studies and Integrated Education Professor
External Career 【 display / non-display 】
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2013.1-2014.12
Japan Marine United Corporation
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2010.4-2017.9
Kyushu Institute of Technology Graduate School of Engineering (Spring term each year) Adjunct lecturer
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2002.10-2012.12
IHI Marine United Inc.
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1986.4-2002.9
Ishikawajima-Harima Heavy Industries, Co., Ltd.
Academic Society Affiliations 【 display / non-display 】
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1986.4
The Japan Society of Naval Architects and Ocean Engneers
Research Areas 【 display / non-display 】
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Frontier Technology (Aerospace Engineering, Marine and Maritime Engineering) / Marine engineering
Research Career 【 display / non-display 】
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Rational Structural Design Method for Ships and Offshore Structures
Project Year：
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Study on Structure of LNG Tanks
Project Year：
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Strength against Whipping Response of Large Container Ships
Project Year：
Books 【 display / non-display 】
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Strength of Materials - Fundamentals for structural strength design
Tetsuo Okada, Keisuke Watanabe, Yasumi Kawamura, Yoshikazu Tanaka, Naoki Osawa, Hideaki Murayama（ Role： Joint author , Ch.1~3, Sec.5.1~5.3, Sec.6.1~6.3, Ch.9, Appendix）
Asakura Publishing Co., Ltd. （ ISBN:978-4-254-23150-2 ）
Total pages：288 Responsible for pages：1-74, 89-125, 133-175, 183-193, 219-222, 269-271 Language：Japanese Book type：Textbook, survey, introduction
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Practical Design of Ships and Other Floating Structures: Proceedings of the 14th International Symposium, PRADS 2019, September 22-26, 2019, Yokohama, Japan- Volume I
Sing-Kwan Lee, et al.（ Role： Joint editor）
Springer （ ISBN:978-9811546235 ）
Total pages：1074 Language：English Book type：Scholarly book
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Practical Design of Ships and Other Floating Structures: Proceedings of the 14th International Symposium, PRADS 2019, September 22-26, 2019, Yokohama, Japan- Volume III
James A. Coller, et al.（ Role： Joint editor）
Springer （ ISBN: 978-9811546792 ）
Total pages：772 Language：English Book type：Scholarly book
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Practical Design of Ships and Other Floating Structures: Proceedings of the 14th International Symposium, PRADS 2019, September 22-26, 2019, Yokohama, Japan- Volume II
Tetsuji Miyashita, et al.（ Role： Joint editor）
Springer （ ISBN:978-9811546716 ）
Total pages：858 Language：English Book type：Scholarly book
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JIS Z 3410 (ISO 14731) /WES 8103 溶接管理技術者再認証資料 溶接施工管理技術の進歩
日本溶接協会溶接管理技術者再認証審査・サーベイランス小委員会編（ Role： Contributor , 4.2.3(2)板厚影響）
一般社団法人 日本溶接協会
Total pages：304 Responsible for pages：144-145 Language：Japanese Book type：Textbook, survey, introduction
Thesis for a degree 【 display / non-display 】
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Application of Optimization Techniques to Hull Structural Design and Lofting
Tetsuo Okada
2006.6
Doctoral Thesis Single Work
Design of ship hull structure can be divided into 3 categories, i.e. basic design to determine general arrangement and midship section, detailed design to determine detailed structural shape and scantlings, and production design / lofting to develop production and piece drawings for actual construction. Through all these stages, rational design can be accomplished by the application of optimization techniques.
In this paper, the author touches upon:
1.Optimizaion of hull structural analysis and mesh division for finite element analysis
2.Optimization of midship initial design and detailed structural shape and scantlings utilizing genetic algorithm
3.Optimization of nesting utilizing new algorithm
and shows practical applicability of optimization techniques in these fields.
Papers 【 display / non-display 】
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An improved scaled model design method for box girders under hogging moment considering the ultimate bending moment and collapse modes
Ma Hongyang, Kawamura Yasumi, Okada Tetsuo, Wang Deyu, Hayakawa Ginga
MARINE STRUCTURES 98 2024.7 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：Elsevier Joint Work
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Zhou, HY; Okada, T; Kawamura, Y; Wang, DY; Hayakawa, G
APPLIED SCIENCES-BASEL 14 ( 14 ) 2024.7 [Reviewed]
Authorship：Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：MDPI Joint Work
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A study on the scantling formulae of a stiffener against lateral pressure under the simultaneous action of axial load
Daoyang Zhang, Zihan Xu, Tetsuo Okada, Yasumi Kawamura, Ginga Hayakawa, Kinya Ishibashi, Hiroyuki K … Show more authors
Daoyang Zhang, Zihan Xu, Tetsuo Okada, Yasumi Kawamura, Ginga Hayakawa, Kinya Ishibashi, Hiroyuki Koyama Hide authors
95 2024.3 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：Elsevier Joint Work
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A digital twin for ship structures - R&D project in Japan
Masahiko Fujikubo, Tetsuo Okada, Hideaki Murayama, Hidetaka Houtani, Naoki Osawa, Kazuhiro Iijima, … Show more authors
Masahiko Fujikubo, Tetsuo Okada, Hideaki Murayama, Hidetaka Houtani, Naoki Osawa, Kazuhiro Iijima, Kunihiro Hamada, Kimihiro Toh, Masayoshi Oka, Shinichi Hirakawa, Kenichi Shibata, Tetsuro Ashida, Toshiro Arima, Yoshiteru Tanaka, Akira Tatsumi, Takaaki Takeuchi, Taiga Mitsuyuki, Kohei Mikami, Makito Kobayashi, Yusuke Komoriyama, Chong Ma, Xi Chen, Hiroshi Ochi, Rei Miratsu Hide authors
Data-Centric Engineering 5 e7 2024.3 [Reviewed]
Language：English Publishing type：Research paper (scientific journal) Publisher：Cambridge University Press Joint Work
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Uncertainty Analysis Method for Estimating Wave Parameters Based on Ship Responses (1st Report-Influence of the Ship Speed and Uncertainty in the measurement data)
Chen Xi, Takami Tomoki, Oka Masayosi, Kawamura Yasumi, Okada Tetsuo
Journal of the Japan Society of Naval Architects and Ocean Engineers 38 ( 0 ) 65 - 74 2023.12 [Reviewed]
Language：Japanese Publishing type：Research paper (scientific journal) Publisher：The Japan Society of Naval Architects and Ocean Engineers Joint Work
<p> The main purpose of this paper is to develop a new intrusive method to replace the traditional non-intrusive methods, such as Monte Carlo Simulation (MCS). By using the proposed method, the estimation of the stochastic response surface does not require time consuming multiple simulations, but the uncertainties in wave parameter can be estimated by optimizing the stochastic objective function only once. This study discusses the uncertainty in wave parameters estimated by using the present method when both the transfer function and the measurement data contain uncertainties. The validity of the present method is discussed by comparing its results to the results of uncertainty analyses through the MCS in which solutions of the deterministic problems are collected.</p>
Review Papers 【 display / non-display 】
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Development of Local Scantling Formulae for Plate Members
Tetsuo Okada
ClassNK Technical Journal 6 ( 2 ) 33 - 55 2022.12
Authorship：Lead author Language：English Publishing type：Internal/External technical report, pre-print, etc. Single Work
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Development of Local Scantling Formulae for Plate Members
Tetsuo Okada
ClassNK Technical Journal 6 ( 2 ) 27 - 40 2022.12
Authorship：Lead author Language：Japanese Publishing type：Internal/External technical report, pre-print, etc. Single Work
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Study on thickness effect to fatigue strength and its feedback to the rules
Tetsuo Okada, Norio Yamamoto, Masashi Mouri
KANRIN ( 60 ) 27 - 37 2015.5
Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (scientific journal) Publisher：THe Japan Society of Naval Architects and Ocean Engineers Joint Work
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Strategy of the Industry and a Role of Welding to Build a Neo-Nippon - Ships (The Shipbuilders' Association of Japan)
Yoshiyuki Nakajima, Tetsuo Okada
Journal of the Japan Welding Society 82 ( 1 ) 24 - 28 2013.1
Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (other) Publisher：The Japan Welding Society Joint Work
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F.P.TANK内外板ロンジのスロット損傷について
岡田哲男
TechnoMarine ( 882 ) 14 - 16 2004.11
Language：Japanese Publishing type：Article, review, commentary, editorial, etc. (other) Publisher：日本造船学会 Single Work
Awards 【 display / non-display 】
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OMAE 2023 CONFERENCE BEST PAPER AWARD, Structures, Safety and Reliability Symposium
2024.6 ASME Bayesian Updating of Estimated Parameters RepresentingMulti-Modal Directional Wave Spectrum Using MeasuredShip Hull Stresses
Individual or group name of awards：Hiromi Kubo, Tetsuo Okada, Xi Chen, Yasumi Kawamura, Taiga Mitsuyuki, Ginga Hayakawa
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日本船舶海洋工学会論文賞、日本海事協会賞
2021.5 日本船舶海洋工学会、日本海事協会 大型コンテナ船に生じる弾性振動応答を考慮した疲労強度の簡易推定手法
Individual or group name of awards：宮下哲治, 岡田哲男, 川村恭己, 関紀明, 花田崚
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横浜国立大学平成29年度ベストティーチャー賞
2018.7 横浜国立大学
Individual or group name of awards：岡田哲男
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Inui Award, The Society of Naval Architects of Japan
1993.5 The Society of Naval Architects of Japan Optimization of Ship Structural Design by Genetic Algorithm
Individual or group name of awards：Tetsuo Okada
Presentations 【 display / non-display 】
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Sea state estimation using measured ship responses as a key technology of digital twin for ship structures
Tetsuo Okada
4th International Conference on Smart & Green Technology for Shipping including Offshore Decommissioning (SMATEC 2023) 2023.4 ASRANet
Event date： 2023.4
Language：English Presentation type：Oral presentation (general)
Venue：Online (London)
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Focal points on strength learned from recent casualties and research activities
岡田哲男 [Invited]
Ultra large container ships
Event date： 2018.11
Language：English Presentation type：Oral presentation (general)
Venue：大連理工大学
招待講演”Ultra large container ships – Focal points on strength learned from recent casualties and research activities”, 大連理工大学、2018年11月23日
Preferred joint research theme 【 display / non-display 】
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Structural Strength, Analysis, Design of Ships and Offshore Structures
Charge of on-campus class subject 【 display / non-display 】
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2024 Strength of materials 2
College of Engineering Science
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2024 Strength of materials 1
College of Engineering Science
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2024 Strengh of Material 2
College of Engineering Science
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2024 Exercises in strength of materials 1
College of Engineering Science
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2024 Strength of Materials and Practice Ⅰ
College of Engineering Science
Charge of off-campus class subject 【 display / non-display 】
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先端産業システム特論ー船舶構造設計論
Institution：九州工業大学
Committee Memberships 【 display / non-display 】
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日本海事協会技術委員会船体専門委員会
2022.11 委員長
Committee type：Academic society
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日本海事協会技術委員会船体専門委員会
2022.8 - 2022.11 委員
Committee type：Academic society
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日本海事協会技術委員会
2022.6 技術委員
Committee type：Academic society
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Lloyd's Register Japan National Committee
2022.5
Committee type：Academic society
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NEDO技術委員会
2021.9 NEDO技術委員
Committee type：Government
Social Contribution(Extension lecture) 【 display / non-display 】
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2018 Short Stay Program at Yokohama National University for participants from Shanghai Jiao Tong University, Dalian University of Technology and Danang University of Science and Technology
工学府海洋宇宙システム工学コース 横浜国立大学 2018.2
Type：Lecture
講義"Ultra large container ships - Focal points on strength issues learned from recent casualties and research activities"
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2016 International Summer School on Naval Architecture, Ocean Engineering and Mechanics
Shanghai Jiao Tong University Shanghai Jiao Tong University 2016.7
Type：Lecture
講義"To Understand Practical Design of Ship Hull Structures through application of beam theory"
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2016 Short Stay Program at Yokohama National University for delegates of Shanghai Jiao Tong University, Federal University of Pernambuco and Dalian University of Technology
工学府海洋宇宙システム工学コース 横浜国立大学 2016.2
Type：Lecture
講義"Arch effect in the design of ship hull structures"
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日本船舶海洋工学会構造強度・材料溶接分野「夏の学校」2015講師
日本船舶海洋工学会 九州大学、福岡県 2015.8
Type：Lecture
「材料力学で理解する船体構造力学」講義
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2015 International Summer School on Naval Architecture, Ocean Engineering and Mechanics
Shanghai Jiao Tong University Shanghai Jiao Tong University 2015.7
Type：Lecture
講義"To Understand Practical Design of Ship Hull Structures through application of beam theory"