Impulsive Hydrodynamics of Submerged Rigid Bodies
Impulsive Hydrodynamics of Submerged Rigid Bodies
复制标题
水下刚体的脉冲流体动力学
DOI：
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发表时间：
1973
期刊：
影响因子：
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通讯作者：
R. B. Berklite
中科院分区：
文献类型：
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作者：
C. J. Garrison;R. B. Berklite
本文概述了一种计算水动力载荷的理论方法，并给出了几种水下构型的数值结果。对垂直锥体、球体和垂直圆柱体等多种构型进行了计算，并与经典结果进行了比较。这些水下结构的数值结果以无量纲水动力荷载参数或附加质量系数的形式给出。对不同水深的计算结果表明，相对水深对水动力影响较大。结果表明，对于典型地震频率，与相应的无限深值相比，自由水面的作用是减小水动力荷载。振动测试的实验结果与理论结果吻合较好。
A theoretical approach to the calculation of hydrodynamic loads is outlined herein and numerical results are presented for several submerged configurations. Computations were carried out for a number of configurations including a vertical cone, sphere, and vertical circular cylinder and various comparisons with classical results are made. Numerical results for these submerged structures are presented in the form of a dimensionless hydrodynamic load parameter or added mass coefficient. Results corresponding to a number of different water depths are presented to show the rather sizable effect of the relative water depth on the hydrodynamic force. It is shown that for typical earthquake frequencies, the effect of the free water surface is to reduce the hydrodynamic loads in comparison to the corresponding infinite depth values. Experimental results obtained by vibration testing show excellent agreement with the theoretical results.