2011 Fiscal Year Final Research Report
Field-vibration tests for large-scaled practical use Tainter-gates in Japan and the nonlinear effect for the self-excited steady vibration
| Project/Area Number |
21760173
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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 |
Dynamics/Control
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| Research Institution | Ashikaga Institute of Technology |
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Principal Investigator |
ANAMI Keiko 足利工業大学, 工学部, 准教授 (30346077)
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| Project Period (FY) |
2009 – 2011
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| Keywords | 動的設計 / 流体関連振動 / 自励振動 / 連成振動 / 安全対策 |
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| Research Abstract |
Dynamic stability of the practical use Tainter gates were clarified, and the nonlinear effect which determines the self-excited steady vibration were examined. First, in order to identify the dynamic stability/instability, the field vibration test with steel-rod breaking excitation method were conducted to the practical use Tainter gates in Japan. Second, the laboratory studies of a model gate show that a gate with "friction-maintained steady vibration" can fail readily when exposed to an initial displacement exceeding a threshold value. Moreover, the theoretical analysis of self-excited steady vibration was tried based on the model test results and field vibration test results.
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