流体动力干扰对桩柱矩阵阵列波浪力的影响

随着超大型海洋结构物的设计和研究日益受到重视，研究多物体之间的流体动力干扰特性显得十分必要。用波动源在截面周线上分布的方法，就垂直桩柱间三维流体动力干扰对波浪力的影响进行了系统的研究，不仅可得到单行柱列的流体动力干扰力学机理的新特性，而且对多行桩柱阵列的研究也取得了若干新的发现：多行柱柱阵列的遮蔽作用强于单行的；无论是单行还是多行柱列，其流体动力干扰特性存在一个十分敏感的来波频域，在此区域内，力的幅值会大大超过其他频域的受力，而且桩柱阵列与交错阵列的力学特性也有所不同。这对超大型海洋结构物的设计有着重要的指导意义。

On effects of hydrodynamic interaction on wave forces on pile arrays of multiple rows

Much attentions have been paid on the study of hydrodynamic interaction between multiple ob- jects which is known as an important factor in the design and study of super-large offshore structures. A sys- tematic study has been carried out on the interaction effects of three-dimensional wave forces on vertical pile arrays by using the wave source distribution method. Not only can the properties of hydrodynamic interaction of single row piles be got, but also some new discoveries are found for the pile arrays of multiple rows. It is found that the shield effect of multiple rows is larger than single one. There is a sensitive wave frequency range in which the variation of the wave forces will probably much larger than those in the other frequency range. The mechanical characteristics for the matrix-like pile arrays are different from those for the staggered pile arrays. Those discoveries may give important guidance to the design of the super-large offshore struc- tures