多向不规则波浪作用下群墩结构所受波浪力的实验研究

实际海域中波浪是多向不规则的，波浪的方向分布宽度对作用在结构物上的波浪力具有显著的影响。为了研究方向分布对大尺度群墩结构所受波浪力的影响规律，该文通过物理模型实验模拟了多向不规则波浪与群墩结构的相互作用。通过对波浪荷载的时间过程线进行统计分析得到了作用在墩柱上的正向力、横向力。实验结果表明波浪的方向分布对群墩结构中墩柱所受横向力具有明显的影响。多向波浪作用时，墩柱所受横向力随着方向分布宽度的增大有显著的增大趋势，且后排墩柱受方向分布宽度的影响较前排墩柱更明显。

EXPERIMENTAL STUDY ON THE MULTIDIRECTIONAL WAVE FORCE ON AN ARRAY OF CYLINDERS

Real sea waves are multidirectional random waves.The wave directional distribution has a significant effect on the wave load.To study the effect of wave directional distribution on wave forces,a wave basin experiment on multidirectional wave loads on an array of large-scale cylinders was carried out.The normal and transverse forces were obtained through the statistical analysis of the time histories of the wave forces.The experimental results show that the wave directional distribution has a remarkable influence on the transverse force.As the wave directional distribution becomes wider,the transverse force increases significantly.The rear cylinders in the array are more affected by the directional distribution than the front ones.