On-site measurement and numerical modelling of a lifting operation for caissons using floating crane

Sho Oh, Tomoaki Utsunomiya, Kota Saiki

研究成果: 著書/レポートタイプへの貢献会議での発言

抄録

Floating cranes are often used for the installation and maintenance operations for offshore wind turbines when they are located in deep waters. As the motions of the vessel being easily affected by external environments, accurate prediction of the motion of the system is important. In this study, first a numerical system based on basic multibody dynamics system is developed for estimation of the behaviour of the lifting operations using floating cranes. Next, on-site measurements are carried out for a lifting operation of a caisson using floating crane. Two numerical models were built with flexible and fixed connectors and validation was performed for the static displacement during lifting operation and the dynamic characteristics of the caisson in the stand-by condition. The static displacements during the lifting operation calculated with de developed tool agreed well with the measurement. The peak frequency of the cargo acceleration in y direction calculated with the flexible model was lower than that calculated with the fixed model. Both models approximately agreed with the measurement. Calculated acceleration of the cargo in x direction largely underestimated the peak frequency of the measurement for both flexible and fixed models. The use of the linear spring to model the wire rope including friction at the end is a possible contributor to the difference.

元の言語英語
ホスト出版物のタイトルOcean Space Utilization
出版者American Society of Mechanical Engineers (ASME)
ISBN(電子版)9780791851258
DOI
出版物ステータス出版済み - 1 1 2018
イベントASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2018 - Madrid, スペイン
継続期間: 6 17 20186 22 2018

出版物シリーズ

名前Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE
6

その他

その他ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2018
スペイン
Madrid
期間6/17/186/22/18

Fingerprint

Floating cranes
Caissons
Offshore wind turbines
Wire rope
Numerical models
Dynamical systems
Friction
Water

All Science Journal Classification (ASJC) codes

  • Ocean Engineering
  • Energy Engineering and Power Technology
  • Mechanical Engineering

これを引用

Oh, S., Utsunomiya, T., & Saiki, K. (2018). On-site measurement and numerical modelling of a lifting operation for caissons using floating crane. : Ocean Space Utilization (Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE; 巻数 6). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/OMAE2018-77132

On-site measurement and numerical modelling of a lifting operation for caissons using floating crane. / Oh, Sho; Utsunomiya, Tomoaki; Saiki, Kota.

Ocean Space Utilization. American Society of Mechanical Engineers (ASME), 2018. (Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE; 巻 6).

研究成果: 著書/レポートタイプへの貢献会議での発言

Oh, S, Utsunomiya, T & Saiki, K 2018, On-site measurement and numerical modelling of a lifting operation for caissons using floating crane. : Ocean Space Utilization. Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE, 巻. 6, American Society of Mechanical Engineers (ASME), ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2018, Madrid, スペイン, 6/17/18. https://doi.org/10.1115/OMAE2018-77132
Oh S, Utsunomiya T, Saiki K. On-site measurement and numerical modelling of a lifting operation for caissons using floating crane. : Ocean Space Utilization. American Society of Mechanical Engineers (ASME). 2018. (Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE). https://doi.org/10.1115/OMAE2018-77132
Oh, Sho ; Utsunomiya, Tomoaki ; Saiki, Kota. / On-site measurement and numerical modelling of a lifting operation for caissons using floating crane. Ocean Space Utilization. American Society of Mechanical Engineers (ASME), 2018. (Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE).
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