Dynamic Behavior of the Deepwater Flexible Pipeline during Pipe Laying Process
The dynamic behavior of the flexible pipeline during deepwater Flex-lay directly determines the structures of laying facilities and the actual installation process. A coupled dynamic model considering the effects of different factors was established in this paper. Based on the model, the initial att...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-04-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/8/4/286 |
| _version_ | 1797570507924570112 |
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| author | Liquan Wang Ming Ju Xiaodong Xing Feihong Yun Xiangyu Wang |
| author_facet | Liquan Wang Ming Ju Xiaodong Xing Feihong Yun Xiangyu Wang |
| author_sort | Liquan Wang |
| collection | DOAJ |
| description | The dynamic behavior of the flexible pipeline during deepwater Flex-lay directly determines the structures of laying facilities and the actual installation process. A coupled dynamic model considering the effects of different factors was established in this paper. Based on the model, the initial attitude of the flexible pipeline during the laying process was determined by using the natural catenary theory and Morison equation. The hydrodynamic analysis of the HYSY201 pipelaying vessel was carried out by using the finite element software AQWA. Under the specific sea condition, a flexible pipeline with outer-diameter of 352.42 mm being laid onto the 3000 m deep seabed was simulated by using the software OrcaFlex to study the pipeline dynamic behaviors including axial tension, bending moment and stress-strain in the laying process, and the factors affecting the dynamic behavior of the pipeline were analyzed. The results show a significant correlation between the marine loads, vessel motion and the dynamic response of the pipeline. Compared with the static state case, the maximum axial tension, bending moment and stress-strain of the pipeline under the interaction of the marine loads and the vessel motion increased by 42.7%, 220%, 52% and 18.7%, separately. Among the marine loads, the surface wave had the most significant effect on the dynamic performance of the pipeline. When the wave direction acts on the width of the ship, the wave height is greater than 2 m and the spectrum period is eight seconds, the wave has the greatest influence on the dynamic response of the pipeline. |
| first_indexed | 2024-03-10T20:26:31Z |
| format | Article |
| id | doaj.art-d56dee26ae9448d8b6cca587ec9fb09c |
| institution | Directory Open Access Journal |
| issn | 2077-1312 |
| language | English |
| last_indexed | 2024-03-10T20:26:31Z |
| publishDate | 2020-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj.art-d56dee26ae9448d8b6cca587ec9fb09c2023-11-19T21:48:11ZengMDPI AGJournal of Marine Science and Engineering2077-13122020-04-018428610.3390/jmse8040286Dynamic Behavior of the Deepwater Flexible Pipeline during Pipe Laying ProcessLiquan Wang0Ming Ju1Xiaodong Xing2Feihong Yun3Xiangyu Wang4College of Mechanical and Electrical Engineering, Harbin Engineering University, Harbin 150001, ChinaCollege of Mechanical and Electrical Engineering, Harbin Engineering University, Harbin 150001, ChinaCollege of Mechanical and Electrical Engineering, Harbin Engineering University, Harbin 150001, ChinaCollege of Mechanical and Electrical Engineering, Harbin Engineering University, Harbin 150001, ChinaCollege of Mechanical and Electrical Engineering, Harbin Engineering University, Harbin 150001, ChinaThe dynamic behavior of the flexible pipeline during deepwater Flex-lay directly determines the structures of laying facilities and the actual installation process. A coupled dynamic model considering the effects of different factors was established in this paper. Based on the model, the initial attitude of the flexible pipeline during the laying process was determined by using the natural catenary theory and Morison equation. The hydrodynamic analysis of the HYSY201 pipelaying vessel was carried out by using the finite element software AQWA. Under the specific sea condition, a flexible pipeline with outer-diameter of 352.42 mm being laid onto the 3000 m deep seabed was simulated by using the software OrcaFlex to study the pipeline dynamic behaviors including axial tension, bending moment and stress-strain in the laying process, and the factors affecting the dynamic behavior of the pipeline were analyzed. The results show a significant correlation between the marine loads, vessel motion and the dynamic response of the pipeline. Compared with the static state case, the maximum axial tension, bending moment and stress-strain of the pipeline under the interaction of the marine loads and the vessel motion increased by 42.7%, 220%, 52% and 18.7%, separately. Among the marine loads, the surface wave had the most significant effect on the dynamic performance of the pipeline. When the wave direction acts on the width of the ship, the wave height is greater than 2 m and the spectrum period is eight seconds, the wave has the greatest influence on the dynamic response of the pipeline.https://www.mdpi.com/2077-1312/8/4/286flexible pipelineflex-laypipelaying vesselsea statedynamic behavior |
| spellingShingle | Liquan Wang Ming Ju Xiaodong Xing Feihong Yun Xiangyu Wang Dynamic Behavior of the Deepwater Flexible Pipeline during Pipe Laying Process Journal of Marine Science and Engineering flexible pipeline flex-lay pipelaying vessel sea state dynamic behavior |
| title | Dynamic Behavior of the Deepwater Flexible Pipeline during Pipe Laying Process |
| title_full | Dynamic Behavior of the Deepwater Flexible Pipeline during Pipe Laying Process |
| title_fullStr | Dynamic Behavior of the Deepwater Flexible Pipeline during Pipe Laying Process |
| title_full_unstemmed | Dynamic Behavior of the Deepwater Flexible Pipeline during Pipe Laying Process |
| title_short | Dynamic Behavior of the Deepwater Flexible Pipeline during Pipe Laying Process |
| title_sort | dynamic behavior of the deepwater flexible pipeline during pipe laying process |
| topic | flexible pipeline flex-lay pipelaying vessel sea state dynamic behavior |
| url | https://www.mdpi.com/2077-1312/8/4/286 |
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