A Study on the Minimization of Mooring Load in Fish-Cage Mooring Systems with a Damping Buoy
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 mo...
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MDPI AG
2020-10-01
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Series: | Journal of Marine Science and Engineering |
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Online Access: | https://www.mdpi.com/2077-1312/8/10/814 |
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author | Gun-Ho Lee Bong-Jin Cha Hyun-young Kim |
author_facet | Gun-Ho Lee Bong-Jin Cha Hyun-young Kim |
author_sort | Gun-Ho Lee |
collection | DOAJ |
description | 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. |
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issn | 2077-1312 |
language | English |
last_indexed | 2024-03-10T15:29:10Z |
publishDate | 2020-10-01 |
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spelling | doaj.art-00765f87c92b4faca251aaf5393e87952023-11-20T17:43:26ZengMDPI AGJournal of Marine Science and Engineering2077-13122020-10-0181081410.3390/jmse8100814A Study on the Minimization of Mooring Load in Fish-Cage Mooring Systems with a Damping BuoyGun-Ho Lee0Bong-Jin Cha1Hyun-young Kim2Fisheries Resources and Environment Division, West Sea Fisheries Research Institute, NIFS, Incheon 22383, KoreaFisheries Engineering Division, National Institute of Fisheries Science, Busan 46083, KoreaFisheries Resources and Environment Division, West Sea Fisheries Research Institute, NIFS, Incheon 22383, KoreaThis 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.https://www.mdpi.com/2077-1312/8/10/814mooring loadfish cagemass-springnumerical analysisfifth-order Stokes wave |
spellingShingle | Gun-Ho Lee Bong-Jin Cha Hyun-young Kim A Study on the Minimization of Mooring Load in Fish-Cage Mooring Systems with a Damping Buoy Journal of Marine Science and Engineering mooring load fish cage mass-spring numerical analysis fifth-order Stokes wave |
title | A Study on the Minimization of Mooring Load in Fish-Cage Mooring Systems with a Damping Buoy |
title_full | A Study on the Minimization of Mooring Load in Fish-Cage Mooring Systems with a Damping Buoy |
title_fullStr | A Study on the Minimization of Mooring Load in Fish-Cage Mooring Systems with a Damping Buoy |
title_full_unstemmed | A Study on the Minimization of Mooring Load in Fish-Cage Mooring Systems with a Damping Buoy |
title_short | A Study on the Minimization of Mooring Load in Fish-Cage Mooring Systems with a Damping Buoy |
title_sort | study on the minimization of mooring load in fish cage mooring systems with a damping buoy |
topic | mooring load fish cage mass-spring numerical analysis fifth-order Stokes wave |
url | https://www.mdpi.com/2077-1312/8/10/814 |
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