[{"content":"\rBack to Faculty Profile\r#\rDivision of Global Architecture, Graduate School of Engineering, Osaka University\nStructural Integrity Subarea\nProfessor Ph.D. in Engineering\n🔬 researchmap\nResearchGate\nPlace of birth: Tokyo, Japan\nResearch Interests\r#\rFloating offshore wind turbines Ship structures Very large floating structures Fluid-structure interaction Professional Experience\r#\rPeriod Affiliation / Position Apr 1998 - Aug 1999 The University of Tokyo, Department of Environmental and Ocean Engineering, Research Associate Sep 1999 - Aug 2002 Port and Airport Research Institute, Structures Department, Fixed-term Research Officer Sep 2002 - Oct 2004 Nippon Kaiji Kyokai (ClassNK), Technical Research Institute, Engineer Nov 2004 - Apr 2008 Osaka University, Graduate School of Engineering, Division of Global Architecture, Research Associate May 2008 - Mar 2011 Osaka University, Graduate School of Engineering, Division of Global Architecture, Lecturer Apr 2011 - Nov 2018 Osaka University, Graduate School of Engineering, Division of Global Architecture, Associate Professor Dec 2018 - Present Osaka University, Graduate School of Engineering, Division of Global Architecture, Professor Education\r#\rDate Institution, Field, and Degree Mar 1993 B.Eng., Department of Naval Architecture and Ocean Engineering, The University of Tokyo Mar 1995 M.Eng., Naval Architecture and Ocean Engineering, Graduate School of Engineering, The University of Tokyo Mar 1998 Ph.D. in Engineering, Naval Architecture and Ocean Engineering, Graduate School of Engineering, The University of Tokyo Academic and Professional Activities\r#\rEditorial Board / Journal Service Marine Structures, Associate Editor Journal of Marine Science and Technology, Deputy Editor Journal of Ocean Engineering and Science, Editorial Board Member Applied Ocean Research, Editorial Board Member Maritime Engineering, Editorial Board Member Permanent Committee Member, International Ship and Offshore Structures Congress (ISSC) Chair, Kansai Ship Structure Study Group (KSSG), The Japan Society of Naval Architects and Ocean Engineers (JASNAOE) Deputy Group Leader, GX and Regional Resilience Engineering, Incubation Division (Collaborative Fusion Type), Future Innovation Center, Graduate School of Engineering, Osaka University Professional Societies The Japan Society of Naval Architects and Ocean Engineers Japan Society of Civil Engineers Japan Wind Energy Association ASME (American Society of Mechanical Engineers) Contact\r#\riijima@naoe.eng.osaka-u.ac.jp\nRoom 423, 4th Floor, Building S1, Osaka University Suita Campus\n","date":"23 April 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/members/faculty/iijima/","section":"Members","summary":"“Cross the seas, shape the future. Let us explore the frontiers of ocean engineering together.”","title":"Kazuhiro Iijima","type":"members"},{"content":"","date":"16 April 2026","externalUrl":"/naoe/naoe4/en/members/bachelor/","permalink":"/naoe/naoe4/en/members/bachelor/mizutani_masatoshi/","section":"Members","summary":"🏛️ From: Japan ｜ 💬『I want to work hard on various things, including research and my hobbies!』","title":"Masatoshi Mizutani","type":"members"},{"content":"","date":"15 April 2026","externalUrl":"/naoe/naoe4/en/members/exchange/","permalink":"/naoe/naoe4/en/members/exchange/elena-sofia-olivadoti/","section":"Members","summary":"🏛️ From: Italy ｜ 📧 Email: elenasofia99@hotmail.com ｜ 💬『ここに彼の一言メッセージを入れます。』","title":"Elena Sofia Olivadoti","type":"members"},{"content":"\rBack ","date":"28 March 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/members/graduated/2026/","section":"Members","summary":"","title":"2026","type":"members"},{"content":"","date":"28 March 2026","externalUrl":"https://www.instagram.com/anandarzp/","permalink":"/naoe/naoe4/en/members/graduated/2026/autumn/ananda/","section":"Members","summary":"🏛️ From: Indonesia ｜ 📅 Time in the laboratory: 2020–2026 ｜ 💬『An anime fan from Indonesia studying very large floating structures!』","title":"Ananda Raiz Pambela","type":"members"},{"content":"","date":"28 March 2026","externalUrl":"/naoe/naoe4/en/members/doctor/","permalink":"/naoe/naoe4/en/members/doctor/yamamoto_masafumi/","section":"Members","summary":"🏛️ From: Nara, Japan｜ 📧 Email: yamamoto.masafumi@nsyc.co.jp ｜ 💬『Bridging industry and academia to brighten Japan’s shipbuilding future!』","title":"Masafumi Yamamoto","type":"members"},{"content":"\rBack ","externalUrl":null,"permalink":"/naoe/naoe4/en/members/graduated/2026/spring/","section":"Members","summary":"","title":"Spring","type":"members"},{"content":"","date":"13 October 2026","externalUrl":"https://instagram.com/ckbc.jeffrey?rpxt=MXZvOTA2eXJqbDA1NQ%3D%3D\u0026utm_source=qr","permalink":"/naoe/naoe4/en/members/exchange/tsui_jeffrey/","section":"Members","summary":"🏛️ From: Republic of China ｜ 📧 Email: jeffrey.tsui.0523@gmail.com ｜ 💬『I enjoy watching anime and cooking, and ONE OK ROCK is my favorite band.』","title":"Tsui Jeffrey","type":"members"},{"content":"\rBack to Faculty Profile\r#\rDivision of Global Architecture, Graduate School of Engineering, Osaka University\nStructural Integrity Subarea\nAssociate Professor Ph.D. in Engineering\n🔬 researchmap ResearchGate\nPlace of birth | Osaka, Japan\nResearch Interests\r#\rStructural health monitoring Ultimate strength Buckling Structural reliability Risk Professional Experience\r#\rPeriod Affiliation / Position Apr 2013 – Mar 2014 Kawasaki Heavy Industries, Ltd. Apr 2014 – Sep 2023 Osaka University, Graduate School of Engineering, Division of Global Architecture, Assistant Professor Apr 2022 – Oct 2022 Newcastle University, Visiting Lecturer Oct 2023 – Present Osaka University, Graduate School of Engineering, Division of Global Architecture, Associate Professor Education\r#\rDate Institution, Field, and Degree Mar 2011 B.Eng., Department of Global Architecture, Naval Architecture and Ocean Engineering Program, Osaka University Mar 2013 M.Eng., Naval Architecture and Ocean Engineering Course, Division of Global Architecture, Graduate School of Engineering, Osaka University Mar 2017 Ph.D. in Engineering, Naval Architecture and Ocean Engineering Course, Division of Global Architecture, Graduate School of Engineering, Osaka University Academic and Professional Activities\r#\rEditorial Board / Journal Service Marine Structures Editorial Board Member Secretary, Kansai Ship Structure Study Group (KSSG), The Japan Society of Naval Architects and Ocean Engineers (JASNAOE) Professional Societies The Japan Society of Naval Architects and Ocean Engineers ASME (American Society of Mechanical Engineers) Contact\r#\rtatsumi@naoe.eng.osaka-u.ac.jp\nRoom 424, 4th Floor, Building S1, Osaka University Suita Campus\n","date":"22 April 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/members/faculty/tatsumi/","section":"Members","summary":"“Cross the seas, shape the future. Let us explore the frontiers of ocean engineering together.”","title":"Akira Tatsumi","type":"members"},{"content":"","date":"16 April 2026","externalUrl":"/naoe/naoe4/en/members/bachelor/","permalink":"/naoe/naoe4/en/members/bachelor/maruyama_ryotaro/","section":"Members","summary":"🏛️ From: Japan ｜ 💬『』","title":"Ryotaro Maruyama","type":"members"},{"content":"","date":"14 April 2026","externalUrl":"https://www.instagram.com/tee33t?igsh=MXhmY3dtdnltaG5o\u0026utm_source=qr","permalink":"/naoe/naoe4/en/members/master/tirapon_kajornkiatnukul/","section":"Members","summary":"🏛️ From: Thailand ｜ 💬『ここに彼の一言メッセージを入れます。』","title":"Tirapon Kajornkiatnukul","type":"members"},{"content":"\rBack ","date":"28 March 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/members/graduated/2026/autumn/","section":"Members","summary":"","title":"Autumn","type":"members"},{"content":"","date":"28 March 2026","externalUrl":"https://www.instagram.com/soe_chandra?igsh=NGlya2JjbGd6cjc3\u0026utm_source=qr","permalink":"/naoe/naoe4/en/members/graduated/2026/autumn/soe/","section":"Members","summary":"🏛️ From: Myanmar ｜ 📅 Time in the laboratory: 2021–2026 ｜ 💬『Soe from Myanmar. My research in the laboratory focused on floating structures and waves.』","title":"Soe Sandar Kyaw","type":"members"},{"content":"","date":"16 April 2026","externalUrl":"/naoe/naoe4/en/members/bachelor/","permalink":"/naoe/naoe4/en/members/bachelor/hayashi_yohei/","section":"Members","summary":"🏛️ From: Japan ｜ 💬『Health comes first! I’ll do my best so I can take on all kinds of new challenges!』","title":"Yohei Hayashi","type":"members"},{"content":"\rBack to Faculty Profile\r#\rDivision of Global Architecture, Graduate School of Engineering, Osaka University\nStructural Integrity Subarea\nSpecial Appointed Assistant Professor Ph.D. in Engineering\n🔬 researchmap ResearchGate ORCID\nPlace of birth | Sichuan, China\nResearch Interests\r#\rFluid-structure interaction Very large floating structures Ship structures Floating offshore wind turbines Professional Experience\r#\rPeriod Affiliation / Position Apr 2026 – Present Osaka University, Graduate School of Engineering, Division of Global Architecture, Special Appointed Assistant Professor Education\r#\rDate Institution, Field, and Degree Jun 2021 B.Eng., School of Ocean Engineering, Naval Architecture and Ocean Engineering, Harbin Institute of Technology Jun 2023 M.Eng., Naval Architecture and Ocean Engineering Course, Division of Global Architecture, Graduate School of Engineering, Osaka University Mar 2026 Ph.D. in Engineering, Naval Architecture and Ocean Engineering Course, Division of Global Architecture, Graduate School of Engineering, Osaka University Academic and Professional Activities\r#\rProfessional Societies The Japan Society of Naval Architects and Ocean Engineers ASME (American Society of Mechanical Engineers) Contact\r#\rxie_binyang@naoe.eng.osaka-u.ac.jp\nRoom 227, 2nd Floor, Building S1, Osaka University Suita Campus\n","date":"28 March 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/members/faculty/xie/","section":"Members","summary":"“Anyone who looks up at the starry sky in the middle of the night seems to carry a lonely silhouette and a dream forever out of reach.”","title":"Binyang Xie","type":"members"},{"content":"","date":"13 October 2026","externalUrl":"https://www.instagram.com/amiealfianto/","permalink":"/naoe/naoe4/en/members/doctor/ami_sadiyah/","section":"Members","summary":"🏛️ From: Indonesia ｜ 📧 Email: aminatus_sadiyah@naoe.eng.osaka-u.ac.jp ｜ 💬『I am from Indonesia, studying floating photovoltaics with an advanced VLFS』","title":"Ami Sadiyah","type":"members"},{"content":"","date":"16 April 2026","externalUrl":"/naoe/naoe4/en/members/bachelor/","permalink":"/naoe/naoe4/en/members/bachelor/cho_shoun/","section":"Members","summary":"🏛️ From: Hyogo Japan ｜ 💬『Want to play basketball!』","title":"Shoun Cho","type":"members"},{"content":"","date":"16 April 2026","externalUrl":"/naoe/naoe4/en/members/bachelor/","permalink":"/naoe/naoe4/en/members/bachelor/morino_kanji/","section":"Members","summary":"🏛️ From: Japan ｜ 💬『』","title":"Kanji Morino","type":"members"},{"content":"","date":"16 April 2026","externalUrl":"https://www.instagram.com/kurakurakura45327?igsh=MWZvdWdyemRmNTR5OQ%3D%3D\u0026utm_source=qr","permalink":"/naoe/naoe4/en/members/bachelor/kurato-daiki/","section":"Members","summary":"🏛️ From: Japan ｜ 💬『I’m a fan of JoJo’s Bizarre Adventure and Dynasty Warriors: Origins. Nice to meet you!』","title":"Daiki Kurato","type":"members"},{"content":"","date":"16 April 2026","externalUrl":"/naoe/naoe4/en/members/bachelor/","permalink":"/naoe/naoe4/en/members/bachelor/umemura-aoki/","section":"Members","summary":"🏛️ From: Hyogo Japan ｜ 💬『I’ll do my best while putting my health first!』","title":"Aoki Umemura","type":"members"},{"content":"","date":"15 April 2026","externalUrl":"/naoe/naoe4/en/members/master/","permalink":"/naoe/naoe4/en/members/master/li_gyoshu/","section":"Members","summary":"🏛️ From: Kanagawa, Japan ｜ 💬『Doing research on slamming. Love watching ガンバ大阪 socer game！』","title":"Gyoshu Li","type":"members"},{"content":"","date":"15 April 2026","externalUrl":"/naoe/naoe4/zh-cn/members/master/","permalink":"/naoe/naoe4/en/members/master/nakashima_kosei/","section":"Members","summary":"🏛️ From: Okayama, Japan ｜ 💬『I like badminton.』","title":"Kosei Nakashima","type":"members"},{"content":"","date":"15 April 2026","externalUrl":"/naoe/naoe4/en/members/master/","permalink":"/naoe/naoe4/en/members/master/yamada_yusuke/","section":"Members","summary":"🏛️ From: Hyogo, Japan｜ 💬『Fight for Suita Matsuri!』","title":"Yusuke Yamada","type":"members"},{"content":"","date":"15 April 2026","externalUrl":"/members/master/","permalink":"/naoe/naoe4/en/members/master/yamanaka_haruto/","section":"Members","summary":"🏛️ From: Wakayama, Japan｜ 💬『…』","title":"Haruto Yamanaka","type":"members"},{"content":"","date":"15 April 2026","externalUrl":"/members/master/","permalink":"/naoe/naoe4/en/members/master/yoshie_taketo/","section":"Members","summary":"🏛️ From: Osaka, Japan｜ 💬『…』","title":"Takahito Yoshie","type":"members"},{"content":"","date":"16 April 2026","externalUrl":"https://www.instagram.com/dipan0510?igsh=MTIwMHk5d2owZXd0ag%3D%3D\u0026utm_source=qr","permalink":"/naoe/naoe4/en/members/master/han_dei/","section":"Members","summary":"🏛️ From: Inner Mongolia, China ｜ 💬『The brain’s paradox: the organ that knows the world has never seen it.』","title":"Di Pan","type":"members"},{"content":"","date":"15 April 2026","externalUrl":"/naoe/naoe4/en/members/master/","permalink":"/naoe/naoe4/en/members/master/hashimoto_yuina/","section":"Members","summary":"🏛️ From: Shiga, Japan ｜ 💬『I’m aiming to be someone who can create meaningful content. I’m a senior undergraduate student researching floating offshore wind turbines.』","title":"Yuina Hashimoto","type":"members"},{"content":"","date":"15 April 2026","externalUrl":"/naoe/naoe4/en/members/master/","permalink":"/naoe/naoe4/en/members/master/ishii_toma/","section":"Members","summary":"🏛️ From: Wakayama, Japan ｜ 💬『My favorite artist is ONE OK ROCK!』","title":"Toma Ishii","type":"members"},{"content":"","date":"17 April 2026","externalUrl":"/naoe/naoe4/en/members/master/","permalink":"/naoe/naoe4/en/members/master/kitadai_hidenori/","section":"Members","summary":"🏛️ From: Hyogo, Japan｜ 💬『I’ve started strength training!』","title":"Hidenori Kitadai","type":"members"},{"content":"","date":"15 April 2026","externalUrl":"/members/master/","permalink":"/naoe/naoe4/en/members/master/shimaya_yuhi/","section":"Members","summary":"🏛️ From: Osaka Japan｜ 💬『…』","title":"Yuhi Shimaya","type":"members"},{"content":"","date":"17 April 2026","externalUrl":"/naoe/naoe4/en/members/master/","permalink":"/naoe/naoe4/en/members/master/shinbata_ryoya/","section":"Members","summary":"🏛️ From: Ehime, Japan ｜ 💬『Working on improving my quality of life!』","title":"Ryoya Shinbata","type":"members"},{"content":"","date":"15 April 2026","externalUrl":"/naoe/naoe4/en/members/master/","permalink":"/naoe/naoe4/en/members/master/sugiura_tomohiro/","section":"Members","summary":"🏛️ From: Hyogo, Japan｜ 💬『Let’s give it our all in both research and exercise!』","title":"Tomohiro Sugiura","type":"members"},{"content":"","date":"13 October 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/categories/","section":"Categories","summary":"","title":"Categories","type":"categories"},{"content":"\rBack In September 2026, Ananda Raiz Pambela and Soe Sandar Kyaw completed their doctoral studies and earned their doctoral degrees. Congratulations to both on this achievement!\nAnanda was a student in our laboratory from 2020 to 2026, and Soe from 2021 to 2026. We thank them for their dedication to research and their contributions to the laboratory, and wish them every success in the next stage of their careers.\nAnanda will continue his research in our laboratory as a Specially Appointed Researcher.\nCelebrating their doctoral degrees\rA commemorative photo with laboratory members\rMeet our autumn 2026 graduates ","date":"13 October 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/news/events/2026_9_graduation/","section":"News","summary":"Ananda Raiz Pambela and Soe Sandar Kyaw completed their doctoral studies in September 2026. Ananda continues his research in the laboratory as a Specially Appointed Researcher.","title":"Congratulations to Ananda and Soe on Earning Their Doctoral Degrees","type":"news"},{"content":"","date":"13 October 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/tags/d1/","section":"Tags","summary":"","title":"D1","type":"tags"},{"content":"\rDoctoral students who aspire to become independent researchers and take on cutting-edge challenges in ocean engineering.\rClicking an external link on this page will take you from this website to an individual student\u0026rsquo;s social media page.\n","date":"13 October 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/members/doctor/","section":"Members","summary":"","title":"Doctoral Students | Ph.D. Students","type":"members"},{"content":"","date":"13 October 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/categories/events/","section":"Categories","summary":"","title":"Events","type":"categories"},{"content":"This page archives the laboratory\u0026rsquo;s past events.\n","date":"13 October 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/news/events/","section":"News","summary":"","title":"Events","type":"news"},{"content":"\rExchange students who deepen cross-border academic exchange and approach challenges in ocean engineering from diverse perspectives.\rClicking an external link on this page will take you from this website to an individual student\u0026rsquo;s social media page.\n","date":"13 October 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/members/exchange/","section":"Members","summary":"","title":"Exchange Students","type":"members"},{"content":"","date":"13 October 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/tags/graduation/","section":"Tags","summary":"","title":"Graduation","type":"tags"},{"content":" About Our Laboratory\r#\rI would like to learn more about the research themes and projects currently being conducted in the laboratory... I would like to visit the laboratory and see the research activities and environment in person... I would like to discuss collaborative research or technology transfer... I would like to apply for admission to this laboratory...\rContact Us Building S1, Suita Campus, The University of Osaka\nGoogle Map\n2-1 Yamadaoka, Suita, Osaka 565-0871, Japan\nFollow our LINE to get the latest update of our lab！ ","date":"13 October 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/","section":"Home","summary":"","title":"Home","type":"page"},{"content":"","date":"13 October 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/members/","section":"Members","summary":"","title":"Members","type":"members"},{"content":"This page provides access to the laboratory\u0026rsquo;s news, research achievements, awards, and events.\n","date":"13 October 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/news/","section":"News","summary":"","title":"News","type":"news"},{"content":"","date":"13 October 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/tags/sns/","section":"Tags","summary":"","title":"SNS","type":"tags"},{"content":"","date":"13 October 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/tags/","section":"Tags","summary":"","title":"Tags","type":"tags"},{"content":"","date":"13 October 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/tags/vlfs/","section":"Tags","summary":"","title":"VLFS","type":"tags"},{"content":"","date":"13 October 2026","externalUrl":null,"permalink":"/naoe/naoe4/categories/%E3%82%A4%E3%83%99%E3%83%B3%E3%83%88/","section":"Categories","summary":"","title":"イベント","type":"categories"},{"content":"","date":"2026年10月13日","externalUrl":null,"permalink":"/naoe/naoe4/zh-cn/tags/%E5%8D%9A1/","section":"Tags","summary":"","title":"博1","type":"tags"},{"content":"","date":"13 October 2026","externalUrl":null,"permalink":"/naoe/naoe4/tags/%E5%AD%A6%E4%BD%8D%E5%8F%96%E5%BE%97/","section":"Tags","summary":"","title":"学位取得","type":"tags"},{"content":"","date":"2026年10月13日","externalUrl":null,"permalink":"/naoe/naoe4/zh-cn/tags/%E6%9C%89%E7%A4%BE%E4%BA%A4%E5%AA%92%E4%BD%93/","section":"Tags","summary":"","title":"有社交媒体","type":"tags"},{"content":"","date":"2026年10月13日","externalUrl":null,"permalink":"/naoe/naoe4/zh-cn/tags/%E6%AF%95%E4%B8%9A/","section":"Tags","summary":"","title":"毕业","type":"tags"},{"content":"","date":"2026年10月13日","externalUrl":null,"permalink":"/naoe/naoe4/zh-cn/categories/%E6%B4%BB%E5%8A%A8/","section":"Categories","summary":"","title":"活动","type":"categories"},{"content":"","date":"24 August 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/tags/digital-twin/","section":"Tags","summary":"","title":"Digital Twin","type":"tags"},{"content":"\rReturn Application deadline: Tuesday, October 13, 2026, at 18:00 Japan Standard Time (JST, UTC+9)\rThe Department of Naval Architecture and Ocean Engineering, Graduate School of Engineering, The University of Osaka, is seeking a postdoctoral researcher (Specially Appointed Researcher) to develop a digital twin framework for wind turbine blade monitoring using optical fiber sensors bonded to the blade surface.\nThis position is funded by a joint industry project (JIP) supported by multiple industry partners.\nResearch focus\nIntegrating optical fiber sensing, signal processing, structural modeling, data assimilation, and machine learning to support reliable wind turbine blade condition monitoring.\nResponsibilities\r#\rDevelop a sensing system using optical fiber sensors bonded to wind turbine blades. Develop a digital twin framework for blade condition monitoring based on sensor data, including signal processing, structural modeling, data assimilation, and machine learning. Plan and conduct wind tunnel tests for experimental validation. Prepare academic papers and present research results at conferences. Undertake other duties necessary for carrying out the research project. Qualifications\r#\rA Ph.D. degree obtained by the start of employment, or expected to be obtained by that time. Knowledge of and research experience in one or more of the following fields is preferred: structural health monitoring; wind engineering or fluid-structure interaction; digital twins; machine learning or data assimilation; and asset management engineering. Experience with data processing and numerical analysis using programming languages such as Python or MATLAB is preferred. Ability to independently plan and conduct experiments, including wind tunnel tests. Employment Details\r#\rItem Details Employment period Two years and six months, starting as early as December 1, 2026. The start date is negotiable, and the contract will not be renewed. Salary In accordance with the regulations of The University of Osaka for Specially Appointed Researchers. Location Suita Campus, The University of Osaka. Application deadline Tuesday, October 13, 2026, at 18:00 Japan Standard Time (JST, UTC+9). Application Inquiries\r#\rFor further details, including the required application documents and selection process, please contact us through the inquiry form below.\nOpen the Inquiry Form ","date":"24 August 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/news/recruitment/2026_8_24/","section":"News","summary":"Application deadline: Tuesday, October 13, 2026, at 18:00 Japan Standard Time (JST, UTC+9) — We are seeking a postdoctoral researcher to develop sensing and digital twin technologies for wind turbine blade condition monitoring using surface-bonded optical fiber sensors.","title":"Postdoctoral Position in Wind Turbine Digital Twin Monitoring","type":"news"},{"content":"","date":"24 August 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/categories/recruitment/","section":"Categories","summary":"","title":"Recruitment","type":"categories"},{"content":"Current academic and research opportunities in our laboratory are listed here.\n","date":"24 August 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/news/recruitment/","section":"News","summary":"","title":"Recruitment","type":"news"},{"content":"","date":"24 August 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/tags/undergoing/","section":"Tags","summary":"","title":"Undergoing","type":"tags"},{"content":"","date":"2026年8月24日","externalUrl":null,"permalink":"/naoe/naoe4/zh-cn/categories/%E6%8B%9B%E8%81%98/","section":"Categories","summary":"","title":"招聘","type":"categories"},{"content":"","date":"24 August 2026","externalUrl":null,"permalink":"/naoe/naoe4/categories/%E6%8E%A1%E7%94%A8%E6%83%85%E5%A0%B1/","section":"Categories","summary":"","title":"採用情報","type":"categories"},{"content":"","date":"17 June 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/tags/omae/","section":"Tags","summary":"","title":"OMAE","type":"tags"},{"content":"\rReturn Group photo\rOMAE, the largest conference in the offshore industry, was held in Tokyo this year on 6.7-6.12. The research group also participated ‘ruthlessly’ this year. See you next year in The Hague, The Netherlands!\n","date":"17 June 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/news/events/2026_6_17/","section":"News","summary":"","title":"OMAE2026 International Conference","type":"news"},{"content":"","date":"16 June 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/tags/farewell-party/","section":"Tags","summary":"","title":"Farewell Party","type":"tags"},{"content":"\rReturn Big group photo\rHappy times are always short, and Elena, who came to exchange lessons from Genoa, Italy, will end her trip to Japan this week. The laboratory held a farewell party for her today. Let\u0026rsquo;s wish her luck! (The photos of the farewell party have been synchronized and uploaded to the laboratory album, please check them yourself if you are interested)\n","date":"16 June 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/news/events/2026_6_16/","section":"News","summary":"","title":"Farewell party with Elena","type":"news"},{"content":"","date":"16 June 2026","externalUrl":null,"permalink":"/naoe/naoe4/tags/%E3%81%8A%E5%88%A5%E3%82%8C%E4%BC%9A/","section":"Tags","summary":"","title":"お別れ会","type":"tags"},{"content":"","date":"2026年6月16日","externalUrl":null,"permalink":"/naoe/naoe4/zh-cn/tags/%E6%AC%A2%E9%80%81%E4%BC%9A/","section":"Tags","summary":"","title":"欢送会","type":"tags"},{"content":"\rBack 2026th Welcome Party\rRecently, the Ship and Ocean Structural Engineering field held a welcome event for students newly joining the laboratory. Faculty members and students working in various research areas gathered and deepened their exchanges in a warm and friendly atmosphere.\nThis welcome event provided new members with a valuable opportunity to become familiar with the laboratory. It also offered a chance to experience the open, collaborative, and forward-looking atmosphere of the Ship and Ocean Structural Engineering field. We hope that the new members will actively learn, take on new challenges, and grow together with their fellow lab members throughout their research lives.\nWelcome to the Ship and Ocean Structural Engineering field!\n","date":"28 April 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/news/events/2026_4_28/","section":"News","summary":"","title":"2026th Welcome Party","type":"news"},{"content":"","date":"28 April 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/tags/bbq/","section":"Tags","summary":"","title":"BBQ","type":"tags"},{"content":"","date":"28 April 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/categories/welcome-party/","section":"Categories","summary":"","title":"Welcome Party","type":"categories"},{"content":"","date":"28 April 2026","externalUrl":null,"permalink":"/naoe/naoe4/categories/%E6%96%B0%E3%83%A1%E3%83%B3%E3%83%90%E3%83%BC%E6%AD%93%E8%BF%8E%E4%BC%9A/","section":"Categories","summary":"","title":"新メンバー歓迎会","type":"categories"},{"content":"","date":"2026年4月28日","externalUrl":null,"permalink":"/naoe/naoe4/zh-cn/categories/%E6%96%B0%E7%94%9F%E6%AC%A2%E8%BF%8E%E4%BC%9A/","section":"Categories","summary":"","title":"新生欢迎会","type":"categories"},{"content":"","date":"2026年4月28日","externalUrl":null,"permalink":"/naoe/naoe4/zh-cn/tags/%E7%83%A4%E8%82%89/","section":"Tags","summary":"","title":"烤肉","type":"tags"},{"content":"","date":"28 April 2026","externalUrl":null,"permalink":"/naoe/naoe4/tags/%E7%84%BC%E8%82%89/","section":"Tags","summary":"","title":"焼肉","type":"tags"},{"content":"\rExploring the untapped potential of the ocean, we seek to build a new paradigm in ocean engineering toward the realization of a sustainable society.\rClick a card to view detailed information.\n","date":"23 April 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/members/faculty/","section":"Members","summary":"","title":"Faculty","type":"members"},{"content":"","date":"23 April 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/tags/ph.d/","section":"Tags","summary":"","title":"Ph.D","type":"tags"},{"content":"","date":"23 April 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/tags/professor/","section":"Tags","summary":"","title":"Professor","type":"tags"},{"content":"","date":"22 April 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/tags/associate-professor/","section":"Tags","summary":"","title":"Associate Professor","type":"tags"},{"content":"","date":"2026年4月22日","externalUrl":null,"permalink":"/naoe/naoe4/zh-cn/tags/%E5%89%AF%E6%95%99%E6%8E%88-associate-professor/","section":"Tags","summary":"","title":"副教授 (Associate Professor)","type":"tags"},{"content":"","date":"17 April 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/tags/m1/","section":"Tags","summary":"","title":"M1","type":"tags"},{"content":"\rMaster\u0026rsquo;s students who are developing strong logical thinking and practical skills to lead the next generation of ocean engineering.\rClicking an external link on this page will take you from this website to an individual student\u0026rsquo;s social media page.\n","date":"17 April 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/members/master/","section":"Members","summary":"","title":"Master's Students","type":"members"},{"content":"","date":"17 April 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/tags/no-sns/","section":"Tags","summary":"","title":"No SNS","type":"tags"},{"content":"","date":"17 April 2026","externalUrl":null,"permalink":"/naoe/naoe4/tags/sns%E3%81%AA%E3%81%84/","section":"Tags","summary":"","title":"SNSない","type":"tags"},{"content":"","date":"2026年4月17日","externalUrl":null,"permalink":"/naoe/naoe4/zh-cn/tags/%E6%97%A0%E7%A4%BE%E4%BA%A4%E5%AA%92%E4%BD%93/","section":"Tags","summary":"","title":"无社交媒体","type":"tags"},{"content":"","date":"2026年4月17日","externalUrl":null,"permalink":"/naoe/naoe4/zh-cn/tags/%E7%A0%941/","section":"Tags","summary":"","title":"研1","type":"tags"},{"content":"","date":"16 April 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/tags/b4/","section":"Tags","summary":"","title":"B4","type":"tags"},{"content":"\rFourth-year undergraduate students who are engaged in their graduation research with sincerity, building on a strong foundation of academic knowledge and logical thinking.\rClicking an external link on this page will take you from this website to an individual student\u0026rsquo;s social media page.\n","date":"16 April 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/members/bachelor/","section":"Members","summary":"","title":"Undergraduate Students | Bachelor Students","type":"members"},{"content":"","date":"2026年4月16日","externalUrl":null,"permalink":"/naoe/naoe4/zh-cn/tags/%E5%A4%A74/","section":"Tags","summary":"","title":"大4","type":"tags"},{"content":"","date":"2026年4月16日","externalUrl":null,"permalink":"/naoe/naoe4/zh-cn/tags/%E7%A4%BE%E4%BA%A4%E5%AA%92%E4%BD%93/","section":"Tags","summary":"","title":"社交媒体","type":"tags"},{"content":"","date":"15 April 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/tags/incoming-m1/","section":"Tags","summary":"","title":"Incoming M1","type":"tags"},{"content":"","date":"15 April 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/tags/m2/","section":"Tags","summary":"","title":"M2","type":"tags"},{"content":"","date":"15 April 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/tags/sns%E3%81%82%E3%82%8A/","section":"Tags","summary":"","title":"SNSあり","type":"tags"},{"content":"","date":"15 April 2026","externalUrl":null,"permalink":"/naoe/naoe4/tags/%E5%87%86m1/","section":"Tags","summary":"","title":"准M1","type":"tags"},{"content":"","date":"2026年4月15日","externalUrl":null,"permalink":"/naoe/naoe4/zh-cn/tags/%E5%87%86%E7%A0%941/","section":"Tags","summary":"","title":"准研1","type":"tags"},{"content":"","date":"2026年4月15日","externalUrl":null,"permalink":"/naoe/naoe4/zh-cn/tags/%E7%A0%942/","section":"Tags","summary":"","title":"研2","type":"tags"},{"content":"","date":"13 April 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/tags/cfd-fea-coupling/","section":"Tags","summary":"","title":"CFD-FEA Coupling","type":"tags"},{"content":"","date":"2026年4月13日","externalUrl":null,"permalink":"/naoe/naoe4/zh-cn/tags/cfd-fea%E8%80%A6%E5%90%88/","section":"Tags","summary":"","title":"CFD-FEA耦合","type":"tags"},{"content":"","date":"13 April 2026","externalUrl":null,"permalink":"/naoe/naoe4/tags/cfd-fea%E9%80%A3%E6%88%90/","section":"Tags","summary":"","title":"CFD-FEA連成","type":"tags"},{"content":"","date":"13 April 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/tags/hydroelasticity/","section":"Tags","summary":"","title":"Hydroelasticity","type":"tags"},{"content":"","date":"13 April 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/categories/journal-articles/","section":"Categories","summary":"","title":"Journal Articles","type":"categories"},{"content":"\rReturn This paper was published in Journal of Marine Science and Application. DOI: 10.1007/s11804-026-00870-1\nAbstract\r#\rThis paper investigates the hydroelastic interaction between a thin elastic plate floating in deep water and nonlinear regular waves. A two-way fluid-structure interaction (FSI) framework coupling computational fluid dynamics (CFD) and finite element analysis (FEA) is used to reproduce the response of nonlinear hydroelastic waves. To account for the high structural flexibility while improving computational efficiency, a Laplacian matrix representation was newly incorporated into the framework. The numerical results were validated through comparison with experimental data and analytical solutions. The simulations revealed nonlinear waveforms in different incident-wave frequency ranges, including waves with sharpened crests and flattened troughs, as well as their reversed counterparts. In the region where waveform reversal occurred, a transition of waveform shape was observed during propagation, with the response changing from an elevated shape on the upstream side to a depressed shape near the center of the plate.\nMain Contributions\r#\rInvestigation of deep-water wave propagation: The study examines deep-water waves propagating along a long and thin plate floating on the water surface. Strong two-way coupled framework: A strongly coupled CFD-FEA framework, specially treated for highly flexible FSI problems, was employed to simultaneously account for various nonlinear hydrodynamic effects and capture features such as free-surface nonlinearity. Model validation and future prospects: The adopted CFD-FEA coupled model was validated against experimental results for highly flexible FSI problems and established as a reliable tool for future studies, such as simulations of wave interactions with long elastic floating plates in shallow water. Access\r#\rPaper link:\nRead the full paper on Springer\n","date":"13 April 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/news/achievements/2024_4_13/","section":"News","summary":"This paper investigates the hydroelastic interaction between a thin elastic plate floating in deep water and nonlinear regular waves. A two-way coupled CFD-FEA framework is used to reproduce the response of nonlinear hydroelastic waves.","title":"Nonlinear Hydroelastic Waves in Deep Water: Capturing Propagation and Waveform Reversal through Strongly Coupled CFD-FEA","type":"news"},{"content":"","date":"13 April 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/tags/nonlinear-waves/","section":"Tags","summary":"","title":"Nonlinear Waves","type":"tags"},{"content":"This page archives the laboratory\u0026rsquo;s past research achievements.\n","date":"13 April 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/news/achievements/","section":"News","summary":"","title":"Research Achievements","type":"news"},{"content":"","date":"13 April 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/tags/very-large-floating-structures-vlfs/","section":"Tags","summary":"","title":"Very Large Floating Structures (VLFS)","type":"tags"},{"content":"","date":"2026年4月13日","externalUrl":null,"permalink":"/naoe/naoe4/zh-cn/categories/%E5%AD%A6%E6%9C%AF%E8%AE%BA%E6%96%87/","section":"Categories","summary":"","title":"学术论文","type":"categories"},{"content":"","date":"13 April 2026","externalUrl":null,"permalink":"/naoe/naoe4/categories/%E5%AD%A6%E8%A1%93%E8%AB%96%E6%96%87/","section":"Categories","summary":"","title":"学術論文","type":"categories"},{"content":"","date":"13 April 2026","externalUrl":null,"permalink":"/naoe/naoe4/tags/%E6%B5%81%E5%8A%9B%E5%BC%BE%E6%80%A7/","section":"Tags","summary":"","title":"流力弾性","type":"tags"},{"content":"","date":"2026年4月13日","externalUrl":null,"permalink":"/naoe/naoe4/zh-cn/tags/%E6%B5%81%E5%BC%B9%E6%80%A7/","section":"Tags","summary":"","title":"流弹性","type":"tags"},{"content":"","date":"13 April 2026","externalUrl":null,"permalink":"/naoe/naoe4/tags/%E8%B6%85%E5%A4%A7%E5%9E%8B%E6%B5%AE%E4%BD%93%E6%A7%8B%E9%80%A0%E7%89%A9-vlfs/","section":"Tags","summary":"","title":"超大型浮体構造物 (VLFS)","type":"tags"},{"content":"","date":"2026年4月13日","externalUrl":null,"permalink":"/naoe/naoe4/zh-cn/tags/%E8%B6%85%E5%A4%A7%E5%9E%8B%E6%B5%AE%E4%BD%93%E7%BB%93%E6%9E%84vlfs/","section":"Tags","summary":"","title":"超大型浮体结构（VLFS）","type":"tags"},{"content":"","date":"13 April 2026","externalUrl":null,"permalink":"/naoe/naoe4/tags/%E9%9D%9E%E7%B7%9A%E5%BD%A2%E6%B3%A2/","section":"Tags","summary":"","title":"非線形波","type":"tags"},{"content":"","date":"2026年4月13日","externalUrl":null,"permalink":"/naoe/naoe4/zh-cn/tags/%E9%9D%9E%E7%BA%BF%E6%80%A7%E6%B3%A2/","section":"Tags","summary":"","title":"非线性波","type":"tags"},{"content":"","date":"2026年4月1日","externalUrl":null,"permalink":"/naoe/naoe4/zh-cn/tags/%E7%89%B9%E8%81%98%E5%8A%A9%E7%90%86%E6%95%99%E6%8E%88-assistant-professor/","section":"Tags","summary":"","title":"特聘助理教授 (Assistant Professor)","type":"tags"},{"content":"\rHere we introduce our alumni, who have transformed the knowledge and spirit of inquiry gained in this laboratory into contributions to society and continue to thrive around the world.\r","date":"28 March 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/members/graduated/","section":"Members","summary":"","title":"Alumni","type":"members"},{"content":"","date":"28 March 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/tags/d3/","section":"Tags","summary":"","title":"D3","type":"tags"},{"content":"","date":"28 March 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/tags/doctoral-degree/","section":"Tags","summary":"","title":"Doctoral Degree","type":"tags"},{"content":"","date":"28 March 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/tags/sloshing/","section":"Tags","summary":"","title":"Sloshing","type":"tags"},{"content":"","date":"28 March 2026","externalUrl":null,"permalink":"/naoe/naoe4/en/tags/special-appointed-assistant-professor/","section":"Tags","summary":"","title":"Special Appointed Assistant Professor","type":"tags"},{"content":"","date":"28 March 2026","externalUrl":null,"permalink":"/naoe/naoe4/tags/%E3%82%B9%E3%83%AD%E3%83%83%E3%82%B7%E3%83%B3%E3%82%B0/","section":"Tags","summary":"","title":"スロッシング","type":"tags"},{"content":"","date":"28 March 2026","externalUrl":null,"permalink":"/naoe/naoe4/tags/%E5%87%86%E6%95%99%E6%8E%88-associate-professor/","section":"Tags","summary":"","title":"准教授 (Associate Professor)","type":"tags"},{"content":"","date":"2026年3月28日","externalUrl":null,"permalink":"/naoe/naoe4/zh-cn/tags/%E5%8D%9A3/","section":"Tags","summary":"","title":"博3","type":"tags"},{"content":"","date":"28 March 2026","externalUrl":null,"permalink":"/naoe/naoe4/tags/%E5%8D%9A%E5%A3%AB%E5%AD%A6%E4%BD%8D/","section":"Tags","summary":"","title":"博士学位","type":"tags"},{"content":"","date":"28 March 2026","externalUrl":null,"permalink":"/naoe/naoe4/tags/%E6%95%99%E6%8E%88-professor/","section":"Tags","summary":"","title":"教授 (Professor)","type":"tags"},{"content":"","date":"2026年3月28日","externalUrl":null,"permalink":"/naoe/naoe4/zh-cn/tags/%E6%B6%B2%E4%BB%93%E6%99%83%E8%8D%A1/","section":"Tags","summary":"","title":"液仓晃荡","type":"tags"},{"content":"","date":"28 March 2026","externalUrl":null,"permalink":"/naoe/naoe4/tags/%E7%89%B9%E4%BB%BB%E5%8A%A9%E6%95%99-assistant-professor/","section":"Tags","summary":"","title":"特任助教 (Assistant Professor)","type":"tags"},{"content":"","date":"2026年3月28日","externalUrl":null,"permalink":"/naoe/naoe4/zh-cn/tags/%E8%B6%85%E5%A4%A7%E5%9E%8B%E6%B5%AE%E4%BD%93/","section":"Tags","summary":"","title":"超大型浮体","type":"tags"},{"content":"","date":"28 March 2026","externalUrl":null,"permalink":"/naoe/naoe4/tags/%E8%B6%85%E5%A4%A7%E5%9E%8B%E6%B5%AE%E4%BD%93%E5%BC%8F%E6%A7%8B%E9%80%A0/","section":"Tags","summary":"","title":"超大型浮体式構造","type":"tags"},{"content":"","date":"28 March 2026","externalUrl":null,"permalink":"/naoe/naoe4/tags/%E8%B6%85%E5%A4%A7%E5%9E%8B%E6%B5%AE%E4%BD%93%E6%A7%8B%E9%80%A0/","section":"Tags","summary":"","title":"超大型浮体構造","type":"tags"},{"content":"","externalUrl":null,"permalink":"/naoe/naoe4/en/authors/","section":"Authors","summary":"","title":"Authors","type":"authors"},{"content":"This page archives the laboratory\u0026rsquo;s past awards and honors.\n","externalUrl":null,"permalink":"/naoe/naoe4/en/news/award/","section":"News","summary":"","title":"Awards","type":"news"},{"content":"\rAll images shown on this page are schematic illustrations and not photographs of the actual equipment.\rFacilities in Our Laboratory\r#\rOur laboratory is equipped with a wide range of facilities, from computational environments that support advanced numerical simulations to state-of-the-art measurement systems for precisely evaluating the structural integrity and motion characteristics of ships and ocean structures.\nSmall Computer Cluster\r#\rThis cluster of parallel computing servers enables high-speed execution of large-scale numerical analyses, including finite element analysis (FEA) and computational fluid dynamics (CFD) simulations for ships and ocean structures. It serves as a key infrastructure supporting advanced research in the laboratory. (Technical collaboration | GYT Tech | Email: info@scgyt.top)\rDIC (Digital Image Correlation) System\r#\rIn structural experiments, this system captures the speckle pattern drawn on the surface of a specimen using high-speed cameras, and measures full-field displacement and strain distributions through image analysis in a non-contact manner. It is used to precisely capture subtle deformations such as fracture behavior of ship materials and residual stress evaluation in welded joints.\rOptiTrack (Optical Motion Capture System)\r#\rUsing multiple high-performance cameras, this system measures in real time and with high precision the three-dimensional motion and attitude of specimens or ship models in model experiments, as well as relative displacements among multiple points. It is applied to studies such as slam impact response measurements of ship models in towing-tank experiments and motion measurements of floating offshore wind turbines under wind and wave loading.\rResearch Robotic System\r#\rOur laboratory is equipped with multiple Unitree quadruped robots and humanoid robots. These systems are used as experimental platforms to support research on automation and intelligentization in the construction processes of ships and ocean structures. They are utilized in motion planning, cooperative control, integration with process simulations, and the study of production support technologies based on Physical AI. In the future, their application is expected to expand to more practical tasks such as transport, inspection, and assembly assistance.\rShared Experimental Facilities in the Division\r#\rOur division also maintains a number of unique shared experimental facilities.\nShip and Ocean Engineering Towing Tank\r#\rModel tests of ships and ocean structures in a towing tank are one of the most effective means of understanding their behavior in actual sea environments. The towing tank of the School of Engineering, Osaka University, was established in 1970 and has produced many achievements in the field of naval architecture and ocean engineering. The tank is 100 m long, 7.8 m wide, and 4.35 m deep, making it a medium-sized experimental tank (see the facility specifications here). It is equipped with a towing carriage above the tank, a plunger-type wave maker at the rear end, and a wave-absorbing beach at the front end.\r","externalUrl":null,"permalink":"/naoe/naoe4/en/research/facility/","section":"Researches","summary":"","title":"Facilities","type":"research"},{"content":"\rFormer 4th Chair\r–1998\rNaval Architecture and Ocean Engineering was incorporated into the newly established framework of the Department and Graduate School of Global Architecture. At the same time, the former system of six small chairs was reorganized into three larger chairs. The most natural understanding is that the present subarea inherited the research line on structural strength from the former 4th Chair after this reorganization.\rShip Structural Strength\r1999–2008\rTetsuya Yao\rShip Structural Strength\r2008–2020\rMasahiko Fujikubo\rStructural Integrity Subarea\r2020–2022\rMasahiko Fujikubo\rStructural Integrity Subarea\r2022–present\rKazuhiro Iijima\r","externalUrl":null,"permalink":"/naoe/naoe4/en/history/","section":"Home","summary":"","title":"History","type":"page"},{"content":"","externalUrl":null,"permalink":"/naoe/naoe4/en/more/","section":"Mores","summary":"","title":"Mores","type":"more"},{"content":"This page provides access to the laboratory\u0026rsquo;s public databases.\n","externalUrl":null,"permalink":"/naoe/naoe4/en/more/database/","section":"Mores","summary":"","title":"Public Database","type":"more"},{"content":"This page provides links related to the laboratory.\nJoint Research Chair for Offshore Wind System Integration\nlink\nOpen Collaboration Laboratory for Enabling Advanced Marine System (OCEANS)\nlink\n","externalUrl":null,"permalink":"/naoe/naoe4/en/more/link/","section":"Mores","summary":"","title":"Related Links","type":"more"},{"content":"\rThis page introduces the main research themes pursued in our laboratory. All images shown are schematic illustrations for explanatory purposes.\rOur laboratory conducts a wide range of research on ships and ocean structures, including structural integrity assessment, numerical simulation, digital twins, floating offshore wind turbines, offshore construction, shipbuilding DX, and robotics.\nIn particular, we promote research that integrates CFD, FEM, statistical methods, machine learning, and AI to support the stages of design, construction, and operation in a comprehensive manner.\nOverview of Research Fields\r#\rOur research is organized around the core areas of Digital Twin, CFD-FEM, FOWT, VLFS, Ult Strength, Post-ULS, Construction, and Reliability / Risk. By organically combining experiments, numerical analysis, and data-driven approaches, we aim to improve the safety, reliability, and productivity of ships and ocean structures.\rMain Research Themes\r#\rDigital Twin and Surrogate Models\r#\rTo understand the structural health of alternative-fuel tanks and their supporting structures with both high accuracy and efficiency, we are conducting research on digital twins and surrogate models (ROM: Reduced Order Model). High-fidelity CFD-FEM analysis can reproduce complex phenomena in detail, but it also involves high computational cost. Therefore, for problems such as sloshing, we explore the use of reduced-order models and POD-based approaches to achieve practical accuracy with significantly reduced computation time. We also consider applications to structural monitoring and response estimation of real structures. Keywords: Digital Twin, ROM, CFD-FEM, POD, sloshing, structural monitoring\rAdaptive Construction Methods for Large Floating Structures\r#\rUnlike construction inside a dock, on-site construction of offshore wind turbines and floatbases is continuously affected by wave-induced relative motion. In response, our laboratory focuses on temporary fixation, temporary support, and fit-up processes, and studies jigs and constraint methods that can function optimally under varying conditions. We also evaluate the feasibility of adaptive construction methods from the viewpoints of jig strength and workability, and explore the possible use of 3D printing for jig fabrication. Keywords: offshore construction, adaptive construction, jig design, OrcaFlex, SSODAC, 3DP\rMooring Optimization for Floating Wind Turbines and Floatbases\r#\rFor floating offshore wind turbines and floatbases installed in deep water, mooring system design is a critical issue that governs both safety and economic performance. Our laboratory studies catenary mooring, taut mooring, TLP systems, and related configurations, aiming to efficiently evaluate maximum responses under combined wind and wave loading and to identify optimal design parameters. By combining OrcaFlex response analysis, POT-based statistical processing, and Kriging-based response surface construction, we pursue mooring optimization that also accounts for uncertainty. Keywords: FOWT, Floatbase, mooring, OrcaFlex, POT method, Kriging\rShipbuilding Process Simulation Considering Welding Distortion\r#\rAgainst the background of labor shortages and increasing demand for efficiency in the shipbuilding industry, automation and optimization of production processes using robots are attracting growing attention. Our laboratory is conducting research on process simulation for hull block assembly, where robot work plans are generated while accounting for welding distortion. By combining virtual environments such as NVIDIA Omniverse / Isaac Sim with welding distortion evaluation based on the inherent strain method and the inherent deformation method, we aim to reproduce shipbuilding processes in a more realistic manner. Keywords: shipbuilding DX, Physical AI, Omniverse, Isaac Sim, welding distortion, process optimization\rLLM Scheduler for Hull Block Construction\r#\rLooking toward future shipyards where diverse robots will work together, we are also studying schedulers that can appropriately assign tasks to multiple robots. This research explores a framework in which LLMs are used to generate task structures from work instructions and optimally allocate tasks to each robot. By combining this with process simulation for feasibility evaluation, we aim to advance collaborative robotic construction of hull blocks. Keywords: LLM, task planning, robot collaboration, shipbuilding automation, gantt chart generation\rDevelopment of FEM Surrogate Models Using GNNs and PINNs\r#\rTo realize front-loading in design and production planning, high-performance surrogate models with low computational cost are essential. Our laboratory is developing FEM surrogate models for ship structures by combining GNNs (Graph Neural Networks) and PINNs (Physics-Informed Neural Networks). With applications in stress analysis, block assembly analysis, and fairing analysis in mind, this research aims to establish an analytical foundation that contributes to shorter development periods, lower costs, and improved quality. Keywords: GNN, PINNs, FEM, surrogate model, front-loading, structural analysis\rFuture Outlook\r#\rIn addition to the traditional foundations of structural mechanics, fluid mechanics, and construction engineering, our laboratory is promoting a new generation of naval architecture and ocean engineering research that integrates data-driven analysis, AI, and robotics.\nWe will continue to address engineering challenges rooted in real seas and real structures, and strive to create technologies that support safer and more sustainable use of the ocean.\n","externalUrl":null,"permalink":"/naoe/naoe4/en/research/theme/","section":"Researches","summary":"","title":"Research Themes","type":"research"},{"content":"","externalUrl":null,"permalink":"/naoe/naoe4/en/research/","section":"Researches","summary":"","title":"Researches","type":"research"},{"content":"","externalUrl":null,"permalink":"/naoe/naoe4/en/series/","section":"Series","summary":"","title":"Series","type":"series"}]