滑坡涌浪主要表现为滑体以一定的高速冲入水中,水体被激起巨大的涌波,使部分区域出现极为复杂的波动现象,对水工结构造成极大破坏。本文采用大缩尺比模型试验,探究张紧式首尾2条锚链和舷侧4条锚链2种不同锚泊形式下船舶在遭遇不同涌浪后的运动响应分析情况。对比研究表明,在遭遇滑坡涌浪时,舷侧4锚链锚泊形式的稳定性较好,首尾2锚链的稳定性较差,但首尾2锚链能够很好限制船舶的横摇运动,2种工况在弱涌浪作用下的横摇和纵摇运动周期时长均大于在强涌浪作用下的运动周期时长。该研究成果可对锚泊船舶的应急响应提供新的理论支撑。
Specifically, the landslide surge wave is mainly manifested as the sliding body rushing into the river channel at a certain speed, and the water body is aroused by huge surge wave, which makes the water surface in the whole reservoir area appear extremely complex fluctuation phenomenon and cause great damage. In this paper, a model test with large scale ratio is used to investigate the motion response analysis of ships with two tensioned bow and stern chains and four side chains under two different mooring modes when they encountered different surges. The comparative study shows that the stability of the side 4 anchor chains is better, while that of the bow and stern 2 anchor chains is worse, but the bow and stern 2 anchor chains can well restrict the rolling motion of the ship in the case of surge. The period durations of rolling and pitching motion under the action of weak surge are both larger than those under the action of strong surge. The research results can provide theoretical support for the emergency response of anchored ships in the Three Gorges Reservoir area.
2022,44(12): 33-38 收稿日期:2021-06-23
DOI:10.3404/j.issn.1672-7649.2022.12.007
分类号:U675.92
基金项目:重庆市社会民生科技创新专项资助项目(cstc2019ngzx0017, cstc2020jscx-lyjsAX0009, cstc2019jscx-lyjsAX0008);重庆市教育委员会科学技术研究计划项目(KJQN201900735)
作者简介:袁培银(1987-),男,博士,研究方向为船舶与海洋结构物设计与制造、航道整治理论与技术
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