Optimal load attachment of a deeply embedded ring anchor in clay
Abstract A Deeply Embedded Ring Anchor (DERA) system has been developed as a cost-effective solution for mooring arrays of floating offshore wind turbines (FOWTs) to the seabed. The DERA boasts several key features, including its versatility in various soil types, compact size, compatibility with di...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2024-12-01
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| Series: | International Journal of Geo-Engineering |
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| Online Access: | https://doi.org/10.1186/s40703-024-00227-z |
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| _version_ | 1846121879400611840 |
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| author | Junho Lee Charles P. Aubeny |
| author_facet | Junho Lee Charles P. Aubeny |
| author_sort | Junho Lee |
| collection | DOAJ |
| description | Abstract A Deeply Embedded Ring Anchor (DERA) system has been developed as a cost-effective solution for mooring arrays of floating offshore wind turbines (FOWTs) to the seabed. The DERA boasts several key features, including its versatility in various soil types, compact size, compatibility with diverse mooring systems, multi-line potential, and robust performance even under unintentional loading conditions. While prior preliminary studies have provided valuable insights into how the DERA can enhance cost-effectiveness by offering a high load capacity, these studies have predominantly focused on optimizing anchor performance under translational horizontal and vertical loading. However, to design the DERA optimally, we must also consider its ability to handle inclined loading conditions in addition to lateral and axial loadings. Due to its shorter length compared to a conventional caisson, the DERA has less resistance to moments, making it more sensitive to horizontal load capacity and the optimal load attachment depth concerning load angle. For this reason, our study introduces an analytical approach to evaluate the effects of inclined loading on anchor performance, utilizing the previously validated upper bound plastic limit analysis (PLA) method. In investigating the optimal load attachment of the DERA, this paper conducts a parametric study to analyze how factors such as load attachment depth, anchor aspect ratio, and load inclination affect the DERA’s load capacity. Our findings indicate that PLA can serve as a valuable analytical tool for assessing the ultimate load capacity of the DERA, particularly under inclined loading conditions. |
| format | Article |
| id | doaj-art-c5de4af15f104820b0d0eb262e9c8b52 |
| institution | Kabale University |
| issn | 2198-2783 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | International Journal of Geo-Engineering |
| spelling | doaj-art-c5de4af15f104820b0d0eb262e9c8b522024-12-15T12:05:57ZengSpringerOpenInternational Journal of Geo-Engineering2198-27832024-12-0115111010.1186/s40703-024-00227-zOptimal load attachment of a deeply embedded ring anchor in clayJunho Lee0Charles P. Aubeny1Deep Anchor Solutions Inc.Department of Civil and Environmental Engineering, Texas A&M UniversityAbstract A Deeply Embedded Ring Anchor (DERA) system has been developed as a cost-effective solution for mooring arrays of floating offshore wind turbines (FOWTs) to the seabed. The DERA boasts several key features, including its versatility in various soil types, compact size, compatibility with diverse mooring systems, multi-line potential, and robust performance even under unintentional loading conditions. While prior preliminary studies have provided valuable insights into how the DERA can enhance cost-effectiveness by offering a high load capacity, these studies have predominantly focused on optimizing anchor performance under translational horizontal and vertical loading. However, to design the DERA optimally, we must also consider its ability to handle inclined loading conditions in addition to lateral and axial loadings. Due to its shorter length compared to a conventional caisson, the DERA has less resistance to moments, making it more sensitive to horizontal load capacity and the optimal load attachment depth concerning load angle. For this reason, our study introduces an analytical approach to evaluate the effects of inclined loading on anchor performance, utilizing the previously validated upper bound plastic limit analysis (PLA) method. In investigating the optimal load attachment of the DERA, this paper conducts a parametric study to analyze how factors such as load attachment depth, anchor aspect ratio, and load inclination affect the DERA’s load capacity. Our findings indicate that PLA can serve as a valuable analytical tool for assessing the ultimate load capacity of the DERA, particularly under inclined loading conditions.https://doi.org/10.1186/s40703-024-00227-zOffshore windRing anchorOptimal load attachmentClay |
| spellingShingle | Junho Lee Charles P. Aubeny Optimal load attachment of a deeply embedded ring anchor in clay International Journal of Geo-Engineering Offshore wind Ring anchor Optimal load attachment Clay |
| title | Optimal load attachment of a deeply embedded ring anchor in clay |
| title_full | Optimal load attachment of a deeply embedded ring anchor in clay |
| title_fullStr | Optimal load attachment of a deeply embedded ring anchor in clay |
| title_full_unstemmed | Optimal load attachment of a deeply embedded ring anchor in clay |
| title_short | Optimal load attachment of a deeply embedded ring anchor in clay |
| title_sort | optimal load attachment of a deeply embedded ring anchor in clay |
| topic | Offshore wind Ring anchor Optimal load attachment Clay |
| url | https://doi.org/10.1186/s40703-024-00227-z |
| work_keys_str_mv | AT junholee optimalloadattachmentofadeeplyembeddedringanchorinclay AT charlespaubeny optimalloadattachmentofadeeplyembeddedringanchorinclay |