Subsea jumper damage detection based on fractal analysis and modal characteristics
Subsea jumpers play a critical role in subsea oil and gas production. Structural damage such as cracks is inevitable in subsea jumpers due to the harsh marine environment (internal fluid flow corrosion, high temperature and pressure, etc.). However, the current research on damage detection and evalu...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Faculty of Mechanical Engineering and Naval Architecture
2024-01-01
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| Series: | Brodogradnja |
| Subjects: | |
| Online Access: | https://hrcak.srce.hr/file/456866 |
| _version_ | 1797205407994740736 |
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| author | Yan Li XingKun Zhou WenHua Li |
| author_facet | Yan Li XingKun Zhou WenHua Li |
| author_sort | Yan Li |
| collection | DOAJ |
| description | Subsea jumpers play a critical role in subsea oil and gas production. Structural damage such as cracks is inevitable in subsea jumpers due to the harsh marine environment (internal fluid flow corrosion, high temperature and pressure, etc.). However, the current research on damage detection and evaluation of subsea jumpers is limited, particularly in cases of slight damage. This study thus proposes a method to identify cracks in subsea jumpers based on the modal characteristics and fractal theory. The accuracy of the method is verified by comparing the finite element simulation method via APDL and the analytical method via MATLAB. In addition, the sensitivity of the method to noise is investigated. The results indicate that the method accurately identifies cracks (single and multiple) with a minimum depth of 0.2 mm in various locations on subsea jumpers. This study may hold significant reference value for improving the safety and reliability of subsea jumpers. |
| first_indexed | 2024-04-24T08:50:38Z |
| format | Article |
| id | doaj.art-16539126150b4c03ad09794a1e0d3adf |
| institution | Directory Open Access Journal |
| issn | 0007-215X 1845-5859 |
| language | English |
| last_indexed | 2024-04-24T08:50:38Z |
| publishDate | 2024-01-01 |
| publisher | Faculty of Mechanical Engineering and Naval Architecture |
| record_format | Article |
| series | Brodogradnja |
| spelling | doaj.art-16539126150b4c03ad09794a1e0d3adf2024-04-16T11:33:55ZengFaculty of Mechanical Engineering and Naval ArchitectureBrodogradnja0007-215X1845-58592024-01-0175211710.21278/brod75201Subsea jumper damage detection based on fractal analysis and modal characteristicsYan Li0XingKun Zhou1WenHua Li2Department of Marine Engineering, Dalian Maritime University, 116026 Dalian, P.R ChinaDepartment of Marine Engineering, Dalian Maritime University, 116026 Dalian, P.R ChinaDepartment of Marine Engineering, Dalian Maritime University, 116026 Dalian, P.R ChinaSubsea jumpers play a critical role in subsea oil and gas production. Structural damage such as cracks is inevitable in subsea jumpers due to the harsh marine environment (internal fluid flow corrosion, high temperature and pressure, etc.). However, the current research on damage detection and evaluation of subsea jumpers is limited, particularly in cases of slight damage. This study thus proposes a method to identify cracks in subsea jumpers based on the modal characteristics and fractal theory. The accuracy of the method is verified by comparing the finite element simulation method via APDL and the analytical method via MATLAB. In addition, the sensitivity of the method to noise is investigated. The results indicate that the method accurately identifies cracks (single and multiple) with a minimum depth of 0.2 mm in various locations on subsea jumpers. This study may hold significant reference value for improving the safety and reliability of subsea jumpers.https://hrcak.srce.hr/file/456866subsea jumperdamage detectionsmall crackmodal characteristicsfractal theory |
| spellingShingle | Yan Li XingKun Zhou WenHua Li Subsea jumper damage detection based on fractal analysis and modal characteristics Brodogradnja subsea jumper damage detection small crack modal characteristics fractal theory |
| title | Subsea jumper damage detection based on fractal analysis and modal characteristics |
| title_full | Subsea jumper damage detection based on fractal analysis and modal characteristics |
| title_fullStr | Subsea jumper damage detection based on fractal analysis and modal characteristics |
| title_full_unstemmed | Subsea jumper damage detection based on fractal analysis and modal characteristics |
| title_short | Subsea jumper damage detection based on fractal analysis and modal characteristics |
| title_sort | subsea jumper damage detection based on fractal analysis and modal characteristics |
| topic | subsea jumper damage detection small crack modal characteristics fractal theory |
| url | https://hrcak.srce.hr/file/456866 |
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