The submerged deep-water longline aquaculture facility is known as a typical, flexible multi-degree-of-freedom offshore structure. Effects of layout concepts of the dropper weight, the upper buoy pattern and the incident wave angle on longline aquaculture systems have been studied by means of numerical modellings and conducting scaled model experiments. The results have showed that the dropper weight and the incident wave angle have significant influence on the motion and loading of the raft-like system. The maximum displacement of the main line is negatively correlated with the dropper weight. The maximum tension of the main line, the downstream mooring line, the upper whip lines and the dropper linesincreases with the increase of the dropper weight. The tension of the upstream mooring line decreases slightly with the increase of the dropper weight. The impact of the upper buoy pattern on the motion and loading of the system is so insignificant as to be ignored. The maximum tension of the mooring lines and the displacement of the long line are positively correlated with structure orientation within the angle range of 0 ° to 60 ° and show negative correlation within the structure orientation of 60 ° to 90 °. The impact of structure orientation on the main line, the upper whip lines and the dropper lines is not so obvious. This study is expected to benefit the design and safety assessment of the longline aquaculture facility with similar structures and environment conditions in this study.

水下深水延绳钓水产养殖设施被称为典型的灵活多自由度海上设施。通过数值建模和进行比例模型试验，研究了滴管重量，上浮标和入射波角的布局概念对延绳钓养殖系统的影响。结果表明，滴管重量和入射波角对筏状系统的运动和载荷有显着影响。主线的最大位移与滴管重量负相关。主线，下游系泊线，上鞭状线和滴管的最大张力随着滴管重量的增加而增加。随着滴管重量的增加，上游系泊缆的张力略有下降。上浮标样式对系统的运动和负载的影响微不足道，可以忽略不计。系泊缆的最大张力和长缆的位移在0°到60°的角度范围内与结构取向成正相关，而在60°到90°的结构取向内呈负相关。结构取向对干线，上鞭线和滴管的影响不那么明显。预期该研究将有益于具有相似结构和环境条件的延绳钓水产养殖设施的设计和安全评估。上浮标样式对系统的运动和负载的影响微不足道，可以忽略不计。系泊缆的最大张力和长缆的位移在0°到60°的角度范围内与结构取向成正相关，而在60°到90°的结构取向内呈负相关。结构取向对干线，上鞭线和滴管的影响不那么明显。预期该研究将有益于具有相似结构和环境条件的延绳钓水产养殖设施的设计和安全评估。上浮标样式对系统的运动和负载的影响微不足道，可以忽略不计。系泊缆的最大张力和长缆的位移在0°到60°的角度范围内与结构取向成正相关，而在60°到90°的结构取向内呈负相关。结构取向对干线，上鞭线和滴管的影响不那么明显。预期该研究将有益于具有相似结构和环境条件的延绳钓水产养殖设施的设计和安全评估。系泊缆的最大张力和长缆的位移在0°到60°的角度范围内与结构取向成正相关，而在60°到90°的结构取向内呈负相关。结构取向对干线，上鞭线和滴管的影响不那么明显。预期该研究将有益于具有相似结构和环境条件的延绳钓水产养殖设施的设计和安全评估。系泊缆的最大张力和长缆的位移在0°到60°的角度范围内与结构取向成正相关，而在60°到90°的结构取向内呈负相关。结构取向对干线，上鞭线和滴管的影响不那么明显。预期该研究将有益于具有相似结构和环境条件的延绳钓水产养殖设施的设计和安全评估。