摘要： 柔性网具和打捞船组成了捕获打捞回收系统，柔性网具和浮体与打捞船三者间在高海况下的相互运动是复杂的柔性-刚性耦合响应运动。为了获取三者间的运动响应情况，进一步提高高海况下的打捞成功率，通过数值模拟仿真技术开展了这三者在高海况下的运动响应分析，重点讨论了浮体与打捞船相互位置的影响情况，以及在这两者的合理位置下，浮体对打捞网具的受力分析。结果显示：在高海况下，打捞船与浮体之间存在有利于打捞回收作业的合理位置；在该位置下开展打捞作业，网具受力在可接受范围内；网具受力情况与波幅正相关，波幅越高网具受力越大，网具受力极值出现在最大波幅所在的一个波浪周期内。研究结果可为高海况下打捞流程及打捞网具设计提供一定的参考。

关键词: 高海况, 打捞, 耦合, 计算流体力学

Abstract: A salvage and recovery system is composed of flexible net and salvage vessel. The interaction among flexible net, floating Body, and salvage vessel under high sea conditions is a complex flexible and rigid coupled response motion. This paper takes the system as the research object, and analyses motion response through numerical simulation method for improving the recovery rate under high sea conditions. The focus was on discussing the influence of the mutual position between the floating body and the salvage vessel, as well as the force of the floating body on the salvage net under the reasonable position. The results show that there is a reasonable distance between the salvage vessel and the floating body that is conducive to the salvage and recovery operation; At this distance, the net force is within an acceptable range; the force on the net is positively correlated with the wave amplitude, the higher the wave amplitude, the greater the force on the net, and the extreme force on the net occurs within the wave period where the maximum wave amplitude is located. The results can provide a certain reference for the salvage process and salvage net design under high sea conditions.

Key words: high sea conditions, salvage, coupling, computational fluid dynamics