풍력에너지 저널 (Journal of Wind Energy)

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Info. Vol.11 - No.2 (2020.06.30)
DOI kwea.2020.11.2.001
Title OpenFAST와 X-SEA를 이용한 고정식 및 부유식 해상풍력 구조물의 연성동적해석 소프트웨어 개발 (Development of Structural Analysis Software for Fixed and Floating Offshore Wind Energy Structures Coupled with X-SEA and OpenFAST)
Authors 지광습*․김기두**
Institutions * 고려대학교 건축사회환경공학부 교수, ** 건국대학교 사회환경공학부 교수 (교신저자)
Abstract Coupled dynamic analysis between wind turbines and substructures in fixed and floating offshore wind turbine structures is currently a challenge. The 3D finite element analysis software X-SEA coupled with the OpenFAST program is therefore developed and discussed in this paper. The current version of X-SEA includes the results of extensive research and development based on the finite element program XFINAS, which was originally developed in Imperial College London. The X-SEA solution ranges from simple static to highly advanced dynamic analysis applied to the offshore structures. Autocad is used as pre- and post-processor of X-SEA.
The X-SEA program is specialized in offshore projects, including nonlinear structural analysis, dynamic response analysis due to wind, current, waves, and seismic loads, impact dynamics and collapse analysis. X-SEA can also carry out fatigue analysis for tubular steel structures in frequency and time domain.
Furthermore, the code checks of steel members with several offshore standards: AISC, API, DNV, Euro-code, ISO and NORSOK, are available in X-SEA for the design of offshore structures. The program has been validated with a standard commercial package called the Structural Analysis Computer System. The theoretical background of X-SEA software is also summarized.
Keyword offshore wind turbine (해상풍력), fiexed and flaoting offshore structure (고정식 및 부유식 해상풍력), analysis software (해석소프트웨어), X-SEA, OpenFAST
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