Study on load identification based on information obtained from distributed sensors
| Project/Area Number |
23760779
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Naval and maritime engineering
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| Research Institution | The University of Tokyo |
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Principal Investigator |
MURAYAMA Hideaki 東京大学, 大学院・工学系研究科, 准教授 (10361502)
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| Project Period (FY) |
2011 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2011: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | 材料 / 構造力学 / 荷重同定 / 光ファイバセンサ / 分布計測 / FBG / OFDR / 逆解析 / 構造ヘルスモニタリング / ひずみ |
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| Research Abstract |
We applied invers analysis to identification of distributed loads on6-m CFRP wing structure and 1-m aluminum wind tunnel model. These structures were equipped with fiber-optic strain sensors and the applied loads were estimated based on strains measured by the sensors. Seven fiber-optic strain sensor arrays which have 30 ? 40FBGs in each were bonded on the wing in the longitudinal direction. Measured strains show excellent accuracy and the estimated load coincided with the actual one. In the wing tunnel model, the applied pressure distribution could be also estimated by several fiber-optic strain sensors which can measure strain at an arbitrary position along fibers.
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Report
(3 results)
Research Products
(10 results)
