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Stability analysis of the fluttering and autorotation of flow-induced rotation of a hinged flat plate 被引量：1

Stability analysis of the fluttering and autorotation of flow-induced rotation of a hinged flat plate
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摘要 This work describes investigations performed on the interaction of uniform current and freely rotating plate about a fixed vertical axis. Fluttering and autorotation are two different motions that may occur during the flow induced rotation. The dimensional analysis proves that the motion in flow induced rotation motion is governed essentially by the dimensionless moment of inertia and Reynolds number. Certain combinations define the stability boundaries between fluttering and autorotation. Fluttering is oscillation of body about a vertical axis and the autorotation is a name given to the case when the body turns continuously about the vertical axis First, the loads and moment coefficients are calculated by experiments and streamline theory for different angles of attack for a fixed fiat plate. Then for dynamic case, a bifurcation diagram is presented based on experiments to classify different motion states of flow induced rotation. Finally, a dynamical model is proposed for stability analysis of flow induced rotation of a flat plate. This work describes investigations performed on the interaction of uniform current and freely rotating plate about a fixed vertical axis. Fluttering and autorotation are two different motions that may occur during the flow induced rotation. The dimensional analysis proves that the motion in flow induced rotation motion is governed essentially by the dimensionless moment of inertia and Reynolds number. Certain combinations define the stability boundaries between fluttering and autorotation. Fluttering is oscillation of body about a vertical axis and the autorotation is a name given to the case when the body turns continuously about the vertical axis First, the loads and moment coefficients are calculated by experiments and streamline theory for different angles of attack for a fixed fiat plate. Then for dynamic case, a bifurcation diagram is presented based on experiments to classify different motion states of flow induced rotation. Finally, a dynamical model is proposed for stability analysis of flow induced rotation of a flat plate.
作者 MIRZAEISEFAT Sina FERNANDES Antonio Carlos
机构地区 Department of Naval Architecture and Marine Engineering COPPE/UFRJ
出处 《Journal of Hydrodynamics》 SCIE EI CSCD 2013年第5期755-762,共8页 水动力学研究与进展B辑（英文版）
关键词 flow-induced rotation autorotation FLUTTERING stability analysis flow-induced rotation, autorotation, fluttering, stability analysis
分类号 U661 [交通运输工程—船舶及航道工程]
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参考文献17

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同被引文献20

  • 1BERNISTAS M. M., RAGHAVAN K. and BEN- SIMON Y. et al. VIVACE (Vortex Induced Vibration Aquatic Clean Energy): A new concept in generation of clean and renewable energy from fluid flow[J]. Journal of Offshore Meehanics Aretic Engineering, 2008, 130(4): 041101.
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  • 6SARKAR P. P., CARACOGLIA L. and HAAN F. L. et al. Comparative and sensitivity study of flutter derivati- ves of selected bridge deck sections, Part 1: Analysis of inter-laboratory experimental data[J]. Engineering St- ructures, 2009, 31(1): 158-169.
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Journal of Hydrodynamics
2013年 第5期

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