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모형수조에서 정적 상사성을 지닌 절단계류선 모델링에 관한 연구Study on Design of Truncated Mooring Line with Static Similarity in Model Test Basins

Other Titles
Study on Design of Truncated Mooring Line with Static Similarity in Model Test Basins
Authors
김윤호김병완조석규
Issue Date
2017
Publisher
한국해양공학회
Keywords
Truncated mooring line for model test 모형시험용 절단계류선; Deepwater cean engineering basin 심해공학수조; Finite element method 유한요소법; Static offset test 정적 변위 테스트; Static similarity 정적 상사성
Citation
한국해양공학회지, v.31, no.4, pp 257 - 265
Pages
9
Journal Title
한국해양공학회지
Volume
31
Number
4
Start Page
257
End Page
265
URI
https://www.kriso.re.kr/sciwatch/handle/2021.sw.kriso/608
ISSN
1225-0767
2287-6715
Abstract
In this study, a series of numerical simulations was conducted in order to design a truncated mooring line with a static similarity to the prototype. A finite element method based on minimizing the potential energy was utilized to describe the dynamics of mooring lines. The prototype mooring lines considered were installed at a water depth of 1,000 m, whereas the KRISO ocean engineering basin (OEB) in Daejeon has a water depth of 3.2 m, which represents 192 m using a scaling of 1:60. First, an investigation for the design of the truncated mooring line was carried out to match the static characteristics of the KRISO Daejeon OEB environment. Then, the same procedure was performed with the KRISO new deepwater ocean engineering basin (DOEB) that is under construction in Busan. This new facility has a water depth of 15 m, which reflects a real scale depth of 900 m considering the 1:60 scaling factor. A finite element method was used to model the mooring line dynamics. It was found that the targeted truncated mooring line could not be designed under the circumstances of the KRISO OEB with any material properties, whereas several mooring lines were easily matched to the prototype under the circumstances of the KRISO DOEB.
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