2011 Fiscal Year Final Research Report
Development of an actuator and structural damage detection technique for small damage using high-frequency excitation
| Project/Area Number |
21760360
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Structural engineering/Earthquake engineering/Maintenance management engineering
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| Research Institution | Kyoto University (2010-2011)
Kyushu University (2009) |
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Principal Investigator |
FURUKAWA Aiko 京都大学, 大学院・工学研究科, 准教授 (00380585)
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| Project Period (FY) |
2009 – 2011
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| Keywords | 損傷検出 / 構造物 / アクチュエータ / 起振 |
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| Research Abstract |
This study developed a structural damage detection technique using excitation at kHz-level frequencies, which is lower than ultrasonic wave and higher than ambient vibration, in order to detect small damage and realize effective measurement. An actuator excitable at kHz-level frequency is developed in the first year. Using this actuator, experiments were done using steel plates and concrete structures to understand the real phenomena. Then, the program of the spectral element method suitable for high frequency domain is developed. Finally, a computer program for damage detection using the spectral element method was developed, and the effectiveness was verified.
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Research Products
(8 results)
