Verification of X-SEA computer program for analysis of offshore structures (VeriX-SEA)

X-SEA [1] [2], a computer program for analysis and design of offshore structures including offshore wind turbines as shown in Figure 1, has been developed by Prof. Ki-Du Kim at Konkuk University (KU), South Korea. Its development in modelling of pre-stressed concrete gravity foundations of offshore wind turbines [3] and coupled analysis of jacket support structures [4] and tripod support structures [5] have been demonstrated in recent publications, in which, Dr Nguyen Dinh from the MaREI Centre is the co-author or advisor. The X-SEA program needs to be further verified for its accuracy and functionalities. The objectives of the VeriX-SEA project is therefore to develop numerical models and verify the new modules of X-SEA, and to build further the international collaboration among KU, UCC and other institutions (Figure 2) in offshore engineering and offshore renewable energy research.


[1] V. N. Dinh, K. D. Kim, P. Plodpradit, S. Vachirapanyakun and J. H. Park, “Development of X-SEA program for efficient coupled analysis of offshore structures,” Wind Energy Science Conference, June,, Cork, 2019.

[2] K. D. Kim, S. Vachirapanyaku, P. Plodpradit, V. N. Dinh and J.-H. Park, “Development of offshore structural analysis software X-SEA coupled with FAST,,” in Proceedings of the 38th International Conference on Ocean, Offshore & Artic Engineering, ASME 2019 OMAE 2019-96778, Glasgow, Scotland, UK, 2019, DOI: 10.1115/OMAE2019-96778.

[3] B. J. Kim, P. Plodpradit, K. D. Kim and H. G. Kim, “Three-dimensional analysis of prestressed concrete offshore wind turbine structure under environmental and 5-MW turbine loads,” Journal of Marine Science and Application, vol. 17, no. 4, p. 625–637, 2018.

[4] P. Plodpradit, V. N. Dinh and K. D. Kim, “Coupled analysis of offshore wind turbine jacket structures with pile-soil-structure interaction using FAST v8 and X-SEA,” Applied Sciences, Special Issue “Offshore Wind Energy”, vol. 9, no. 8, pp. 1633, DOI: 10.3390/app9081633, 2019.

[5] P. Plodpradit, V. N. Dinh and K. D. Kim, “Tripod-supported offshore wind turbines: Modal and coupled analysis and parametric study using X-SEA and FAST,” Journal of Marine Science and Engineering, vol. 7, no. 6, pp. 1-20, DOI: 10.3390/jmse7060181, 2019.

Quick Facts


Aug 2019


Dec 2020

Funded By

Konkuk University-Industry Cooperation Foundation, South Korea


Dr Nguyen Dinh (PI), Dr Jimmy Murphy (Co-PI)


Climate Action



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