| Project/Area Number |
04452152
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| Research Category |
Grant-in-Aid for General Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
機械力学・制御工学
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| Research Institution | UNIVERSITY OF TOKYO |
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Principal Investigator |
KANEKO Shigehiko UNIVERSITY OF TOKYO, FACULTY OF ENGINEERING, ASSOCIATE PROFESSOR, 工学部, 助教授 (70143378)
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| Co-Investigator(Kenkyū-buntansha) |
WATANABE Tatsuo UNIVERSITY OF TOKYO, FACULTY OF ENGINEERING, ASSISTANT LECTURER, 工学部, 助手 (70011179)
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| Project Period (FY) |
1992 – 1993
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| Project Status |
Completed (Fiscal Year 1993)
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| Budget Amount *help |
¥6,700,000 (Direct Cost: ¥6,700,000)
Fiscal Year 1993: ¥1,600,000 (Direct Cost: ¥1,600,000)
Fiscal Year 1992: ¥5,100,000 (Direct Cost: ¥5,100,000)
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| Keywords | SLOSHING / DYNAMIC DAMPER / FLOW-INDUCED VIBRATION / NONLINEAR WAVE / NONLINEAR VIBRATION / SHALLOW WATER THEORY / FINITE AMPLITUDE THEORY / VIBRATION SUPPRESSION |
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| Research Abstract |
In this project, analytical and experimental studies to establish design methodology of tuned liquid damper were performed. Firstly, the method for calculating the effectiveness of shallow water type rectangular tuned liquid damper(TLD) when installed on the actual buildings or bridges was established and the validity of which was verified by experiments. Especially, the effect of the inserted submerged nets on the performance of TLD was examined intensively. Secondly, deep water type TLD in which shallow water theory is no more applicable, was formulated based on the finite amplitude wave theory. The method for estimating the effectiveness of deep water type TLD when installed on the actual buildings or bridges was also established and the validity of which was verified by experiments. Thirdly, the fact that TLD is effective both with a small initial amplitude (which is less than about 5cm) such as the case of wind loadings and with a large initial amplitude such as the case of earthquake was first found experimentally. To establish suitable model for calculating the performance of TLD with a large initial amplitude is our future research topics.
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