Numerical modelling of the mooring line failure induced performance changes of a marine fish cage in irregular waves and currents

Hung Jie Tang; Ray Yeng Yang; Chai Cheng Huang

doi:10.1115/OMAE2019-95730

Numerical modelling of the mooring line failure induced performance changes of a marine fish cage in irregular waves and currents

Hung Jie Tang
, Ray Yeng Yang
, Chai Cheng Huang

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

4 Citations (Scopus)

Abstract

This study aims to investigate the performance changes resulted from a mooring line failure of a marine fish cage exposed to irregular waves and current. A numerical model based on the lumped mass method and Morison equation was extended to simulate the mooring line failure scenario. In this study, the failed resulting changes were compared with its normal counterpart in both the time domain and the frequency domain. After one upstream anchor loss, the maximum tension on the remaining anchor has increased significantly, as well as the drift distance of the rearing part (net chamber, floating collar, and tube-sinker) of the fish cage. The resulting changes can also be seen in both the wave-frequency and the low-frequency region in the spectra, including mooring tensions and body motions.

Original language	English
Title of host publication	Structures, Safety, and Reliability
Publisher	American Society of Mechanical Engineers (ASME)
ISBN (Electronic)	9780791858783
DOIs	https://doi.org/10.1115/OMAE2019-95730
Publication status	Published - 2019
Event	ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2019 - Glasgow, United Kingdom Duration: 2019 Jun 9 → 2019 Jun 14

Publication series

Name	Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE
Volume	3

Conference

Conference	ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2019
Country/Territory	United Kingdom
City	Glasgow
Period	19-06-09 → 19-06-14

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 14 Life Below Water

All Science Journal Classification (ASJC) codes

Ocean Engineering
Energy Engineering and Power Technology
Mechanical Engineering

Access to Document

10.1115/OMAE2019-95730

Cite this

Tang, H. J., Yang, R. Y., & Huang, C. C. (2019). Numerical modelling of the mooring line failure induced performance changes of a marine fish cage in irregular waves and currents. In Structures, Safety, and Reliability (Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE; Vol. 3). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/OMAE2019-95730

Tang, Hung Jie ; Yang, Ray Yeng ; Huang, Chai Cheng. / Numerical modelling of the mooring line failure induced performance changes of a marine fish cage in irregular waves and currents. Structures, Safety, and Reliability. American Society of Mechanical Engineers (ASME), 2019. (Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE).

@inproceedings{d372a6a67b7643779ce9171ab9b1ce59,

title = "Numerical modelling of the mooring line failure induced performance changes of a marine fish cage in irregular waves and currents",

abstract = "This study aims to investigate the performance changes resulted from a mooring line failure of a marine fish cage exposed to irregular waves and current. A numerical model based on the lumped mass method and Morison equation was extended to simulate the mooring line failure scenario. In this study, the failed resulting changes were compared with its normal counterpart in both the time domain and the frequency domain. After one upstream anchor loss, the maximum tension on the remaining anchor has increased significantly, as well as the drift distance of the rearing part (net chamber, floating collar, and tube-sinker) of the fish cage. The resulting changes can also be seen in both the wave-frequency and the low-frequency region in the spectra, including mooring tensions and body motions.",

author = "Tang, \{Hung Jie\} and Yang, \{Ray Yeng\} and Huang, \{Chai Cheng\}",

note = "Funding Information: The authors are grateful for the support of the Ministry of Science and Technology in Taiwan, under the grant numbers MOST 107-3113-E-006-004-CC2 and MOST 107-3113-E-006-012. Publisher Copyright: Copyright {\textcopyright} 2019 ASME.; ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2019 ; Conference date: 09-06-2019 Through 14-06-2019",

year = "2019",

doi = "10.1115/OMAE2019-95730",

language = "English",

series = "Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE",

publisher = "American Society of Mechanical Engineers (ASME)",

booktitle = "Structures, Safety, and Reliability",

}

Tang, HJ, Yang, RY & Huang, CC 2019, Numerical modelling of the mooring line failure induced performance changes of a marine fish cage in irregular waves and currents. in Structures, Safety, and Reliability. Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE, vol. 3, American Society of Mechanical Engineers (ASME), ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2019, Glasgow, United Kingdom, 19-06-09. https://doi.org/10.1115/OMAE2019-95730

Numerical modelling of the mooring line failure induced performance changes of a marine fish cage in irregular waves and currents. / Tang, Hung Jie; Yang, Ray Yeng; Huang, Chai Cheng.
Structures, Safety, and Reliability. American Society of Mechanical Engineers (ASME), 2019. (Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE; Vol. 3).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Numerical modelling of the mooring line failure induced performance changes of a marine fish cage in irregular waves and currents

AU - Tang, Hung Jie

AU - Yang, Ray Yeng

AU - Huang, Chai Cheng

N1 - Funding Information: The authors are grateful for the support of the Ministry of Science and Technology in Taiwan, under the grant numbers MOST 107-3113-E-006-004-CC2 and MOST 107-3113-E-006-012. Publisher Copyright: Copyright © 2019 ASME.

PY - 2019

Y1 - 2019

N2 - This study aims to investigate the performance changes resulted from a mooring line failure of a marine fish cage exposed to irregular waves and current. A numerical model based on the lumped mass method and Morison equation was extended to simulate the mooring line failure scenario. In this study, the failed resulting changes were compared with its normal counterpart in both the time domain and the frequency domain. After one upstream anchor loss, the maximum tension on the remaining anchor has increased significantly, as well as the drift distance of the rearing part (net chamber, floating collar, and tube-sinker) of the fish cage. The resulting changes can also be seen in both the wave-frequency and the low-frequency region in the spectra, including mooring tensions and body motions.

AB - This study aims to investigate the performance changes resulted from a mooring line failure of a marine fish cage exposed to irregular waves and current. A numerical model based on the lumped mass method and Morison equation was extended to simulate the mooring line failure scenario. In this study, the failed resulting changes were compared with its normal counterpart in both the time domain and the frequency domain. After one upstream anchor loss, the maximum tension on the remaining anchor has increased significantly, as well as the drift distance of the rearing part (net chamber, floating collar, and tube-sinker) of the fish cage. The resulting changes can also be seen in both the wave-frequency and the low-frequency region in the spectra, including mooring tensions and body motions.

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M3 - Conference contribution

AN - SCOPUS:85075843862

T3 - Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE

BT - Structures, Safety, and Reliability

PB - American Society of Mechanical Engineers (ASME)

T2 - ASME 2019 38th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2019

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ER -

Tang HJ, Yang RY, Huang CC. Numerical modelling of the mooring line failure induced performance changes of a marine fish cage in irregular waves and currents. In Structures, Safety, and Reliability. American Society of Mechanical Engineers (ASME). 2019. (Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE). doi: 10.1115/OMAE2019-95730

Numerical modelling of the mooring line failure induced performance changes of a marine fish cage in irregular waves and currents

Abstract

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UN SDGs

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