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垂荡阻尼板的强迫振荡试验 被引量:22

The Forced Oscillation Tests on Heave Damping Plates
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摘要 垂荡阻尼板是一种增加 Truss spar阻尼的结构形式 ,它可以通过增加平台的阻尼和附加质量 ,从而达到减小其垂向运动的目的 .为了研究垂荡板的水动力 ,进行了三角形垂荡板在单板和双板两种情况下的强迫振荡试验 .将试验结果用 Morison公式进行了分析 ,给出了垂荡板在较大Re和 Kc时的惯性力系数和拖曳力系数 ,并探讨了板间距对水动力系数的影响 ,得出了理想的板间距 .对阻尼板的设计具有一定的实用意义 . Heave damping plates are structures used to increase the added mass and damping of truss spar. Thus the heave motion of spar can be reduced. In order to study the hydrodynamics of heave plates, the forced oscillation tests on a single plate arrangement and double plate arrangement were carried out. The plates are all triangular. The drag coefficients and inertia coefficients versus Re and K c were given through the analysis of experimental data by using Morison formula. The double plate arrangement is involved and the effects of space between the two plates on hydrodynamic coefficients were discussed, and the best gap was obtained.
出处 《上海交通大学学报》 EI CAS CSCD 北大核心 2003年第7期977-980,共4页 Journal of Shanghai Jiaotong University
基金 国家自然科学基金资助项目 (5 0 0 0 90 0 5 5 0 0 3 90 10 )
关键词 垂荡阻尼板 水动力 Morison公式 惯性力系数 拖曳力系数 heave plate hydrodynamics Morison equation inertia coefficient drag coefficient
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参考文献7

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