1School of Civil Engineering and Architecture, Taizhou University, Jiaojiang 318000, Zhejiang Province, China 2Department of Civil Engineering, Zhejiang University, Hangzhou 310000, Zhejiang Province, China
Received: March 21, 2022 Accepted: November 29, 2022 Publication Date: June 13, 2023
Copyright The Author(s). This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.
For the overall safety evaluation of the tension leg platform (TLP) system, the structural strength reliability analysis is essential. The strength reliability of a typical TLP exposed to combined static and extreme wave loads is the subject of this study. A three-dimensional finite element shell model made up of a pontoon, column, and deck that is assumed to be accurate and efficient with tendon system as the boundary conditions was built using a concrete TLP. By employing the proportional loading method based on the design wave method, failure mechanisms for the platform and were determined. The failure mechanisms were then used to derive limit state expressions. The system reliability indexes of the object platform were calculated using the system reliability assessment framework created by the system reliability model suggested in this paper. This work seeks to advance the application of reliability theory in offshore engineering.
Keywords: Tension leg platform; System reliability; Finite element method; Numerical simulation; Failure probability
[1] None, (1983) “Application of Reliability Methods in Design and Analysis of Offshore Platforms" Journal of Structural Engineering 109(10): 2265–2291. DOI: 10.1061/(ASCE)0733-9445(1983)109:10(2265).
[2] Y. L. Wu and T. Moan, (1991) “An incremental load formulation for limit states in the reliability analysis of nonlinear systems" Structural Safety 10(4): 307–325.DOI: 10.1007/978-3-642-84753-0_30.
[3] H. H. Sun and Y. Bai, (2003) “Time-variant reliability assessment of FPSO hull girders" 16(3): 219–253.
[4] C. G. Soares, M. Dogliani, C. Ostergaard, G. Parmentier, and P. T. Pedersen, (1996) “Reliability based ship structural design" Transactions - Society of Naval Architects and Marine Engineers:
[5] K. Purnendu, B. Das, et al., (2004) “Structural reliability framework for FPSOs/FSUs [R]" Glasgow: Universities of Glasgow and Strathclyde:
[6] Y. He, L.-K. Xu, Q. Ye, Y.-H. Jiang, and W.-L. Jin. “Reliability-based assessment on stiffened panel of deep-water platform”. English. In: 2. Honolulu, HI, United states, 2009, 621–627.
[7] Y. M. Low, (2009) “Frequency domain analysis of a tension leg platform with statistical linearization of the tendon restoring forces" Marine Structures 22(3): 480–503.
[8] Young-Joo, Lee, Junho, and Song, (2012) “Finiteelement-based system reliability analysis of fatigueinduced sequential failures" Reliability engineering & system safety 108: 131–141. DOI: 10.1016/j.ress.2012.05.007.
[9] Q. Ye,W.-L. Jin, Y. He, and Y. Bai, (2013) “System reliability of a semi-submersible drilling rig" Ships and Offshore Structures 8(1): 84–93. DOI: 10.1080/17445302.2011.647806.
[10] L. Hui. “Tension leg platform hydrodynamic response and global strength research". (Master’s thesis). Harbin Engineering University, 2012.
[11] Fa-suo, Yan, Da-gang, Zhang, Li-ping, SunYang-shan, and Dai, (2009) “Stress verification of a TLP under extreme wave environment" Journal of Marine Science & Application: DOI: 10.1007/s11804-009-8105-1.
[12] R. Jin, Y. Jiang, W. Shen, H. Zhang, and B. Geng, (2021) “Coupled dynamic response of a tension leg platform system under waves and flow at different heading angles: An experimental study" Applied Ocean Research 115(2): 102848. DOI: 10.1016/j.apor.2021.102848.
[13] M. N. Coccon, J. Song, S.-Y. Ok, and U. Galvanetto, (2017) “A new approach to system reliability analysis of offshore structures using dominant failure modes identified by selective searching technique" KSCE Journal of Civil Engineering 21(6): 2360–2372. DOI: 10.1007/s12205-016-1192-z.
[14] G. U. Jia-Yang, L. Hai-Ning, and J. M. Yang, (2013) “Studies on coupling dynamic response of TLP in stochastic waves" Chuan Bo Li Xue/Journal of Ship Mechanics: DOI: 10.3969/j.issn.1007-7294.2013.08.007.
[15] J.-y. Gu, J.-m. Yang, and H.-n. Lv, (2012) “Studies of TLP dynamic response under wind, waves and current" China ocean engineering 26: 363–378. DOI: 10.1007/s13344-012-0028-y.
[16] J.-Y. Gu, H.-N. Lv, and J.-M. Yang, (2012) “Studies on coupling dynamic response and characteristics of mooring system of TLP in stochastic waves" Ocean Engineering (Haiyang Gongcheng) 30(4): 42–48.
[17] P. Thoft-Christensen and Y. Murotsu, (1989) “Application of Structural System Reliability Theory" Journal of the American Statistical Association 84(406):
[18] R. E. Melchers and A. Beck. Structural reliability analysis and prediction. John wiley & sons, 2018.
[19] A. A. Naess, P. J. Haagensen, B. Lian, T. Moan, and T. Simonsen. “Investigation of the Alexander L. Kielland Failure - Metallurgical and Fracture Analysis”. In: Offshore Technology Conference. 1982. DOI: 10.1115/1.3231014.
[20] H. D. Shao Jing-hua He Yong, X. Long-kun, and J. Wei-liang, (2012) “Reliability analysis method for local components of tension leg platform" Ocean Engineering 30(1): 25–32.
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