NUMERICAL ANALYSIS OF SUSPENDED LOAD MOTIONS OF LARGE DIAMETER PILES IN WAVES
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- OMATA Teppei
- 大成建設株式会社 技術センター
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- ODA Yukinobu
- 大成建設株式会社 技術センター
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- HASHIMOTO Takayuki
- 大成建設株式会社 技術センター
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- FUKUHARA Tetsu
- 大成建設株式会社 洋上風力発電プロジェクト部
Bibliographic Information
- Other Title
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- 波浪中における大径杭の吊り荷動揺に関する数値解析
Abstract
<p> In the construction of a monopile foundation for offshore wind power generation facilities, it is important to know how much the operation rate can be secured against the motion of the suspended load in order to calculate the process and costs, assuming that a large crane ship is used to set the monopile in the open sea. Therefore, analysis of the ship oscillations among waves was conducted with the suspended monopile to study the behavior of the suspended load. The analysis results showed that the suspended load moves significantly around the natural period of the hull and the load, and that the motion sometimes behaves like a double pendulum that the upper and lower ends of the suspended load move in opposite phases. It was also confirmed that the swing of the suspended load affects the sway of the ship via the boom motion. Furthermore, in the case where the monopile is half submerged in water, it was confirmed that the motion of the monopile is reduced compared to the case where that is in air, and it rotates with part of monopile as the fulcrum near the water surface.</p>
Journal
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- Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering)
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Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering) 78 (2), I_277-I_282, 2022
Japan Society of Civil Engineers
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Details 詳細情報について
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- CRID
- 1390575263319968896
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- ISSN
- 21854688
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
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- Abstract License Flag
- Disallowed