Stabilisation of compliant floating platforms with sheet barriers under wave action
Excessive surface displacement of a compliant floating platform made of interconnected modular floats due to wave action can cause damage to the utility system (solar power, etc.) or endanger the safety of the service personnel on top. This study examines the use of a vertical tensioned sheet barrie...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2022
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/155844 |
| _version_ | 1811682539275812864 |
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| author | Bi, Cheng Wu, Mao See Law, Adrian Wing-Keung |
| author2 | School of Civil and Environmental Engineering |
| author_facet | School of Civil and Environmental Engineering Bi, Cheng Wu, Mao See Law, Adrian Wing-Keung |
| author_sort | Bi, Cheng |
| collection | NTU |
| description | Excessive surface displacement of a compliant floating platform made of interconnected modular floats due to wave action can cause damage to the utility system (solar power, etc.) or endanger the safety of the service personnel on top. This study examines the use of a vertical tensioned sheet barrier installed in front of the floating platform for its stablisation under incident waves. Two configurations are investigated, namely finite and semi-infinite, representing a medium and large size platform respectively. Analytical analysis is performed without the pre-assumption of the dynamic behavior of the sheet barrier, and solutions are obtained using the eigenfunction expansion together with the least square method. For both configurations, the wave transmission to the floating platform reduces when the dynamic of the sheet barrier shifts from plate-like to membrane-like with increasing tension and also deeper draft and larger viscosity, which in turn reduces the platform displacement and the hydrodynamic pressure force on the platform. Overall, the results in the present study show that the installation of the barrier in front of the platform in the membrane-like hydroelastic regime with a penetration ratio more than ∼0.4 can significantly improve the stability of the compliant floating platform in the coastal environment. |
| first_indexed | 2024-10-01T03:58:27Z |
| format | Journal Article |
| id | ntu-10356/155844 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T03:58:27Z |
| publishDate | 2022 |
| record_format | dspace |
| spelling | ntu-10356/1558442022-03-26T20:11:28Z Stabilisation of compliant floating platforms with sheet barriers under wave action Bi, Cheng Wu, Mao See Law, Adrian Wing-Keung School of Civil and Environmental Engineering School of Mechanical and Aerospace Engineering Nanyang Environment and Water Research Institute Environmental Process Modelling Centre Engineering::Civil engineering Compliant Floating Platform Viscoelastic Sheet Barrier Excessive surface displacement of a compliant floating platform made of interconnected modular floats due to wave action can cause damage to the utility system (solar power, etc.) or endanger the safety of the service personnel on top. This study examines the use of a vertical tensioned sheet barrier installed in front of the floating platform for its stablisation under incident waves. Two configurations are investigated, namely finite and semi-infinite, representing a medium and large size platform respectively. Analytical analysis is performed without the pre-assumption of the dynamic behavior of the sheet barrier, and solutions are obtained using the eigenfunction expansion together with the least square method. For both configurations, the wave transmission to the floating platform reduces when the dynamic of the sheet barrier shifts from plate-like to membrane-like with increasing tension and also deeper draft and larger viscosity, which in turn reduces the platform displacement and the hydrodynamic pressure force on the platform. Overall, the results in the present study show that the installation of the barrier in front of the platform in the membrane-like hydroelastic regime with a penetration ratio more than ∼0.4 can significantly improve the stability of the compliant floating platform in the coastal environment. Submitted/Accepted version 2022-03-23T08:32:54Z 2022-03-23T08:32:54Z 2021 Journal Article Bi, C., Wu, M. S. & Law, A. W. (2021). Stabilisation of compliant floating platforms with sheet barriers under wave action. Ocean Engineering, 240, 109933-. https://dx.doi.org/10.1016/j.oceaneng.2021.109933 0029-8018 https://hdl.handle.net/10356/155844 10.1016/j.oceaneng.2021.109933 2-s2.0-85116161875 240 109933 en Ocean Engineering © 2021 Elsevier Ltd. All rights reserved. This paper was published in Ocean Engineering and is made available with permission of Elsevier Ltd. application/pdf |
| spellingShingle | Engineering::Civil engineering Compliant Floating Platform Viscoelastic Sheet Barrier Bi, Cheng Wu, Mao See Law, Adrian Wing-Keung Stabilisation of compliant floating platforms with sheet barriers under wave action |
| title | Stabilisation of compliant floating platforms with sheet barriers under wave action |
| title_full | Stabilisation of compliant floating platforms with sheet barriers under wave action |
| title_fullStr | Stabilisation of compliant floating platforms with sheet barriers under wave action |
| title_full_unstemmed | Stabilisation of compliant floating platforms with sheet barriers under wave action |
| title_short | Stabilisation of compliant floating platforms with sheet barriers under wave action |
| title_sort | stabilisation of compliant floating platforms with sheet barriers under wave action |
| topic | Engineering::Civil engineering Compliant Floating Platform Viscoelastic Sheet Barrier |
| url | https://hdl.handle.net/10356/155844 |
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