This study established the conditions in which mooring load is minimized in a fish cage that includes a damping buoy in specific wave conditions. To derive these conditions, numerical simulations of various mooring contexts were conducted on a fish cage (1/15 scale) using a simplified mass-spring model and fifth-order Stokes wave theory. The simulation conditions were as follows: (1) bridle-line length of 0.8–3.2 m; (2) buoyancy of 2.894–20.513 N for the damping buoy; and (3) mooring-rope thickness of 0.002–0.004 m. The wave conditions were 0.333 m in height and 1.291–2.324 s of arrival period. Consequently, the mooring tensions tended to decrease with decreasing mooring line thickness and increasing bridle-line length and buoyancy of the buoy. Accordingly, it was assumed to be advantageous to minimize the mooring tension by designing a thin mooring line and long bridle line and for the buoyancy of the buoy to be as large as possible. This approach shows a valuable technique because it can contribute to the improvement of the mooring stability of the fish cage by establishing a method that can be used to minimize the load on the mooring line.

中文翻译：

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带有阻尼浮标的鱼笼式系泊系统中系泊载荷最小化的研究

这项研究确定了在特定波浪条件下包括阻尼浮标的鱼笼中的系泊负载最小的条件。为了得出这些条件，使用简化的质量弹簧模型和五阶斯托克斯波理论在鱼笼（1/15比例）上进行了各种系泊环境的数值模拟。模拟条件如下：（1）bri线长度为0.8-3.2 m；（2）阻尼浮标的浮力为2.894–20.513 N；（3）缆绳的厚度为0.002-0.004 m。波浪条件是高度为0.333 m，到达周期为1.291–2.324 s。因此，系泊张力趋于随着系泊线厚度的减小以及马bri线长度和浮标的浮力的增加而减小。因此，假定通过设计一条细的系泊缆线和一条较长的bri绳缆线来使系泊张力最小化以及使浮标的浮力尽可能大是有利的。这种方法显示了一种有价值的技术，因为它可以通过建立一种可用于最小化系泊缆线上负载的方法来有助于提高鱼笼的系泊稳定性。