Load identification by inverse analysis based on information of distributed sensors

• Project/Area Number: 20760557
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Naval and maritime engineering
• Research Institution: The University of Tokyo
• Principal Investigator: HIDEAKI Murayama The University of Tokyo, 大学院・工学系研究科, 准教授 (10361502)
• Project Period (FY): 2008 – 2009
• Project Status: Completed (Fiscal Year 2009)
• Budget Amount: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000); Fiscal Year 2009: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000); Fiscal Year 2008: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
• Keywords: 船舶工学 / 航空宇宙工学 / 構造工学・地震工学 / スマートセンサ情報システム / 長寿命化 / 光ファイバセンサ / 逆解析 / 構造ヘルスモニタリング

Research Abstract

The purpose of this study is to improve the reliability and safety of ships and airplanes. I have developed the real-time prediction technique of the distributed loads on a ship structure or an airplane fuselage based by inverse analysis based on strain distributions measured by fiber-optic sensors. In this study I confirmed good accuracy and stability of this technique for a simple plate model by simulations and experiments. Then I could identify various load distributions on the wing structures made of advanced composite materials in simulation.

Research Products

• [Presentation] Application of Inverse Analysis of Distributed Load with Strain Sensors to Wing Structures (2009)
  • Author(s): Hideaki Murayama
  • Organizer: Proc.of the 7the International Workshop on Structural Health Monitoring, Vol.1, pp.75-82
  • Place of Presentation: 米国・スタンフォード大学
  • Year and Date: 2009-09-09
• [Presentation] Application of Inverse Analysis of Distributed Load with Strain Sensors to Wing Structures (2009)
  • Author(s): H. Murayama, G. Akiyama, H. Igawa, T. Nakamura, K. Kageyama, K. Uzawa, Y. Hirano, Y. Aoki
  • Organizer: Structural Health Monitoring 2009 (Proc. of the 7th International Workshop on Structural Health Monitoring)
  • Place of Presentation: Stanford, USA
• [Presentation] ひずみセンサを用いた分布荷重推定手法の板構造への適用 (2008)
  • Author(s): 小林俊一, 秋山学朗, 村山英晶, 影山和郎, 鵜沢潔, 金井誠, 中村俊哉, 井川寛隆
  • Organizer: 日本機械学会2008年度年次大会講演論文集
  • Place of Presentation: 横浜国立大学, 横浜
  • Year and Date: 2008-08-04
• [Presentation] ひずみセンサを用いた分布荷重推定手法の板構造への適用 (2008)
  • Author(s): 秋山学朗
  • Organizer: 日本機械学会2008年度年次大会
  • Place of Presentation: 横浜国立大学
  • Year and Date: 2008-08-04