Structural health monitoring without utilizing any test signals
| Project/Area Number |
24760477
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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 |
Architectural environment/equipment
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| Research Institution | Tokyo Metropolitan College of Industrial Technology |
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Principal Investigator |
Takahashi Yoshinori 東京都立産業技術高等専門学校, その他部局等, 准教授 (30547732)
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| Co-Investigator(Renkei-kenkyūsha) |
Tohyama Mikio Wave Science Study, 所長 (90255604)
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| Research Collaborator |
Goto Satoru Wave Science Study, 研究員
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| Project Period (FY) |
2012-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2015: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
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| Keywords | 建造物診断 / 伝達関数 / 音響信号処理 / ケプストラム / 音・振動環境 |
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| Outline of Final Research Achievements |
This study is a structural health monitoring using external noise. Building diagnostics using the slight vibration caused by wind or traffic noise is effective for a structural health monitoring. However, selecting the optimum length of windowing is an important key for passive diagnostics. This study proposed a cepstrum ratio and selecting the optimum windowing length based on it. From the model experiment, it was shown that the estimation error of the building eigenfrequency is converged for the cepstrum ratio over 0dB.
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Report
(5 results)
Research Products
(14 results)
