Research theme for competitive and other funds (6):
2023 - 2026 荒天中操船に対応したHMD 型デジタルツインシミ ュレータ開発
2021 - 2024 波浪中応答解析と実験技術を利用したHMD操 船シミュレータ開発
2021 - 2024 実海域ビッグデータを活用した波浪荷重予測手法の開発
2012 - 2015 A fundamental study on fatigue life evaluation taking the load sequence of whipping into account.
2011 - 2014 A study for residual stability and strength for the safe return to port
2008 - 2010 A Study for a residual strength of a damaged ship in waves
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Papers (59):
Masahiko Fujikubo, Tetsuo Okada, Hideaki Murayama, Hidetaka Houtani, Naoki Osawa, Kazuhiro Iijima, Kunihiro Hamada, Kimihiro Toh, Masayoshi Oka, Shinichi Hirakawa, et al. A digital twin for ship structures-R&D project in Japan. Data-Centric Engineering. 2024. 5
Xi Chen, Tomoki Takami, Masayosi Oka. 船体応答に基づく波浪情報推定における不確定性解析手法 -第二報-主成分分析による応答関数の不確定性. Journal of the Japan Society of Naval Architects and Ocean Engineers. 2023. 38. 75-83
Xi Chen, Tomoki Takami, Masayosi Oka, Yasumi Kawamura, Tetsuo Okada. Uncertainty Analysis Method for Estimating Wave Parameters Based on Ship Responses (1st Report-Influence of the Ship Speed and Uncertainty in the measurement data). Journal of the Japan Society of Naval Architects and Ocean Engineers. 2023. 38. 65-74
Masayoshi Oka, Chong Ma, Xi Chen. Estimation of the Long-term Maximum Expected Value of Vertical Bending Moment taking the Shape of Directional Wave Spectra into account. Journal of the Japan Society of Naval Architects and Ocean Engineers. 2023. 38. 99-108
Sadaoki Matsui, Masayoshi Oka. RAO-based translation process for estimating extreme value distribution of nonlinear ship response in irregular waves. Journal of Marine Science and Technology. 2023
OKA Masayoshi, MURAKAMI Chikahisa, MATSUI Sadaoki, HAYASHIBARA Hitoshi, FUJIMOTO Shuhei, YAMADA Yasuhira. Results and Future Prospects of Developed Techniques for Evaluating Ship Structural Strength. 2023. 23. 別冊. 51-56
Xi Chen, Tomoki Takami, Masaoyoshi Oka. Uncertainty Analysis of Wave Parameter considering the Uncertainty of Transfer Function Using Principal Component Analysis. 2023. 36. 367-372
OKA Masayoshi. Data Assimilation Technology for Digital Twin for Ship Structure. 2022. 34. 133-136
小森山祐輔, 三上航平, 宝谷英貴, CHEN Xi, MA Chong, 辰巳晃, 村山英晶, 岡正義. Development of Ship Structure Digital Twin System and Verification by Towing Tank Test. 海上技術安全研究所報告(Web). 2022. 22
Masayoshi Oka, Chong Ma. The Prediction of Wave Load Based on AIS Data - The Maximum Value of Vertical Bending Moment in the Worldwide Sea Area -. 2021. 33. 133-137
To provide a torque measuring method and torque measuring device of the structure mode
Education (2):
2010 - 2015 The University of Tokyo Graduate school of frontier sciences Ocean Technology Policy
1992 - 1996 Hiroshima University School of engineering Civil engineering and architecture
Professional career (1):
Bachelor
Work history (7):
2022/04 - 現在 National Maritime Research Institute Structural and Industrial System Engineering Department Deputy Director
2020/03 - 現在 National Maritime Research Institute Digital Transformation Project Team Project Leader
2015/04 - 現在 National Maritime Research Institute, Japan Structure and Load Research Group, Structural and Industrial System Engineering Department Head of Structure and Load Research Group
2009/10 - 2015/03 The University of Tokyo Graduate school of frontier sciences Doctor
1996/04 - 2015/03 National Maritime Research Institute, Japan Structural Strength Evaluation Department Researcher
2003/08 - 2004/03 Ministry of Land, Infrastructure, Transport and Tourism Safety standards division, Maritime bureau Special assistant to the Director
1992/04 - 1996/03 Hiroshima University School of Engineering bachelor
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Committee career (6):
2018/09 - 現在 International Ship and Offshore Structures Congress (ISSC) Member of Loads commitee
2017/04 - 現在 Japan Society of Naval Architects and Ocean Engineers (JASNAOE) Editor of Journal of Marine Science and Technology (JMST)
2019/09 - 2025/09 The Japan Society of Naval Architects and Ocean Engineers JSSC Committee
2019/06 - The Japan Society of Naval Architects and Ocean Engineers Award(Paper) of The Japan Society of Naval Architects and Ocean Engineers Estimation of Wave Loads acted on Ships in Service based on AIS Data. - Evaluation of Operational Effects on the Maximum Loads. -
2016/03 - The University of Tokyo Dean's Award for Outstanding Achievement Doctoral Course Graduate School of Frontier Sciences Dean's Award for Outstanding Achievement Doctoral Course Graduate School of Frontier Sciences
Association Membership(s) (3):
THE JAPAN SOCIETY OF NAVAL ARCHITECTS AND OCEAN ENGINEERS
, West Japan Society of Naval Architects
, The Society of Naval Architects of Japan