| Project/Area Number |
07555301
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 展開研究 |
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| Research Field |
Aerospace engineering
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| Research Institution | Tohoku University |
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Principal Investigator |
SEKINE Hideki Tohoku University, Graduate School of Engineering, Professor, 大学院・工学研究科, 教授 (20005359)
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| Co-Investigator(Kenkyū-buntansha) |
KAMIYA Shoji Tohoku University, Graduate School of Engineering, Lecturer, 大学院・工学研究科, 講師 (00204628)
FUKUNAGA Hisao Tohoku University, Graduate School of Engineering, Professor, 大学院・工学研究科, 教授 (50134664)
胡 寧 東北大学, 工学部, 助手 (60250685)
鈴木 寛 東北大学, 工学部, 助手 (90179242)
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| Project Period (FY) |
1995 – 1997
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| Project Status |
Completed (Fiscal Year 1997)
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| Budget Amount *help |
¥7,800,000 (Direct Cost: ¥7,800,000)
Fiscal Year 1997: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 1996: ¥2,300,000 (Direct Cost: ¥2,300,000)
Fiscal Year 1995: ¥4,100,000 (Direct Cost: ¥4,100,000)
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| Keywords | Composite Laminate / Damage / Identification / Micromechanics / Numerical Simulation / Piezoelectric Ceramics / Active Control System |
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| Research Abstract |
An integrated system, which consists of a real-time identification system of damage, a prediction system of damage extension and residual strength and an active control system of damage extension and deformation, was studied for composite laminate aircraft structures subjected to impact and fatigue loadings.
1.Real-time identification system of damage
By means of a system identification technique and an optimization technique based on a mathematical programming method, we constructed a real-time identification system of damage, location of external loads and load history.
2.Prediction system of damage extension and residual strength
The damage extension and residual strength were studied for CFRP composite laminate structures, and the prediction system was completed.
3.Active control system of damage extension and deformation
The active control system was made using piezoelectric ceramic actuators, and examined from theoretical and experimental points of view.
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