| Project/Area Number |
24656513
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Aerospace engineering
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| Research Institution | Tohoku University |
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Principal Investigator |
FUKUNAGA Hisao 東北大学, 工学(系)研究科(研究院), 教授 (50134664)
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| Co-Investigator(Kenkyū-buntansha) |
HU Ning 千葉大学, 大学院工学研究科, 教授 (60250685)
ATOBE Satoshi 東北大学, 大学院工学研究科, 助教 (40586468)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2012: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Keywords | CFRP構造 / モニタリング / 衝撃損傷 / 放射音 / 異物衝突 |
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| Research Abstract |
In the present research, a real-time and non-contact identification method of the location and the history of the impact force acting on the aerospace CFRP structures is developed using radiated sounds occurring at the impact. The real-time method to estimate the occurrence and the extent of the impact damage in the CFRP structures is also developed from the identified force history. That is, the location and the force history are identified from the radiated sounds measured with microphones, and the monitoring method to estimate the impact damage is also developed. The validity of the present method is verified through the application to CFRP laminated plates and CFRP sandwich panels.
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