Rchr
J-GLOBAL ID：200901020418594127   Update date: May. 22, 2024

Oka Masayoshi

オカ マサヨシ | Oka Masayoshi
Affiliation and department：
National Maritime Research Institute Department of structure and industrial system

About National Maritime Research Institute Department of structure and industrial system


Job title： Vise head
Research field  (1)： Marine and maritime engineering
Research keywords  (8)： Fatigue Strength ,  Impact Load ,  FEM ,  structural strength ,  Wave Load ,  Ship structure ,  Wave loads ,  Ship Strength
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
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Papers (54)：
  • 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
ｍore...
MISC (79)：
  • 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
ｍore...
Patents (5)：
  • WAVE RESPONSE ESTIMATION METHOD AND WAVE RESPONSE ESTIMATION PROGRAM FOR VESSEL
  • 波浪画像認識利用方法、波浪画像認識利用プログラム、波浪画像認識利用シス テム、及び波浪画像認識操船シミュレータ
  • 船舶の波浪応答推定方法、波浪応答推定プログラム、波浪応答推定システム、及び船舶
  • SWIRLING POWER GENERATION DEVICE
  • 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
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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
  • 2023/06 - 2024/05 国土交通省海事局 船舶産業の変革実現のための検討会
  • 2017/04 - 2021/03 日本船舶海洋工学会 論文審査委員会委員
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Awards (3)：
  • 2019/12 - 国立研究開発法人 海上・港湾・航空技術研究所 理事長表彰 個人表彰(最優秀論文賞)
  • 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
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