| Project/Area Number |
15K06309
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Building structures/Materials
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| Research Institution | Nihon University |
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Principal Investigator |
KANDA Makoto 日本大学, 生産工学部, 教授 (00204800)
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| Project Period (FY) |
2015-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2017: ¥260,000 (Direct Cost: ¥200,000、Indirect Cost: ¥60,000)
Fiscal Year 2016: ¥260,000 (Direct Cost: ¥200,000、Indirect Cost: ¥60,000)
Fiscal Year 2015: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
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| Keywords | 慣性接続要素 / 空力安定性 / スクルートン数 / 質量減衰パラメタ― / 改良型ハイブリッド空力振動実験法 / 質量減衰パラメータ / 風応答制御 / Dynamic Mass Damper / 超高層建築物 / 慣性効果 / 減衰効果 |
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| Outline of Final Research Achievements |
This paper describes aerodynamic stability of structures using the inertial mass. The change of mass, damping parameter, natural period, Scruton number are defined using the inertia mass ratio γ. At first, the aerodynamic stability of a 2 dimensional square prism using the inertial mass is examined by means of Modified Hybrid Aerodynamic vibration Technique, which is referred as to MHAT. Secondly, similar to the 2 dimensional square prism, the aerodynamic stability of a 3 dimensional square prism using the inertial mass is examined by means of MHAT. As a results, the aerodynamic stability of not only 2 dimensional square prism but also 3 dimensional square prism get better. For example, the peak of vortex-induced vibration gets smaller and the aerodynamic vibration mode is changed from flutter vibration to vortex-induced vibration by the effect of inertial mass.
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