Academic Journal
Reliability analysis of subsea manifold system using FMECA and FFTA
| Title: | Reliability analysis of subsea manifold system using FMECA and FFTA |
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| Authors: | Chao Liu, Chuankun Zhou, Liping Tan, Junguo Cui, Wensheng Xiao, Jian Liu, Hongyan Wang, Teng Wang |
| Source: | Scientific Reports, Vol 14, Iss 1, Pp 1-20 (2024) |
| Publisher Information: | Nature Portfolio, 2024. |
| Publication Year: | 2024 |
| Collection: | LCC:Medicine LCC:Science |
| Subject Terms: | Subsea manifold system, FMECA, FFTA, Fuzzy set theory, Medicine, Science |
| More Details: | Abstract Subsea manifold system is a complex system that occupies a pivotal role in contemporary ocean engineering and has a significant impact on the safety of marine resource exploitation. Reliability technology plays a significant role in ensuring the safe operation of the subsea manifold system. To perform a comprehensive analysis of the reliability of complex systems, a combination method of FMECA-FFTA (Failure Modes, Effects and Criticality Analysis - Fuzzy Fault Tree Analysis) is introduced in this study. Firstly, FMECA is used to accomplish a qualitative analysis of system reliability considering multifactorial failure modes, which included analyzing potential failure modes, causes of system failure, and evaluating the degree of hazard to the system through a risk matrix diagram. Then, FFTA is applied to build a fault tree model to divide the system into “system-subsystem-component” and determine the minimal cut sets for quantitative analysis of system reliability. In addition, fuzzy set theory is incorporated to improve the accuracy of handling uncertainty in quantitative reliability analysis. Finally, a qualitative and quantitative reliability analysis is conducted by using FMECA-FFTA method for subsea manifold system. The failure modes of the subsea manifold system are clearly identified, including high-risk modes such as external leakage, medium-high-risk modes such as fail to close/lock on demand, and medium-risk modes such as leakage of critical location, plugged, and effective measures should be taken to focus on preventive protection and regular testing for the high risk, medium-high risk and medium risk modes. |
| Document Type: | article |
| File Description: | electronic resource |
| Language: | English |
| ISSN: | 2045-2322 |
| Relation: | https://doaj.org/toc/2045-2322 |
| DOI: | 10.1038/s41598-024-73410-y |
| Access URL: | https://doaj.org/article/ec90194a0cc943b6b15f0d6e4b3db683 |
| Accession Number: | edsdoj.90194a0cc943b6b15f0d6e4b3db683 |
| Database: | Directory of Open Access Journals |
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| ISSN: | 20452322 |
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| DOI: | 10.1038/s41598-024-73410-y |
| Published in: | Scientific Reports |
| Language: | English |