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FPSO 안정성 평가를 위한 절단계류선 모델링 수치 연구Numerical Study on Designing Truncated Mooring Lines for FPSO Stability Analysis

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Numerical Study on Designing Truncated Mooring Lines for FPSO Stability Analysis
Authors
김윤호조석규성홍근서장훈서용석
Issue Date
2014
Publisher
한국해양공학회
Keywords
Truncated mooring lines 절단계류선; Turret 터렛; Static load optimization 정적 힘 최적화; Dynamic response optimization 동적 응답 최적화; Coupled analysis 연성해석
Citation
한국해양공학회지, v.28, no.5, pp 387 - 395
Pages
9
Journal Title
한국해양공학회지
Volume
28
Number
5
Start Page
387
End Page
395
URI
https://www.kriso.re.kr/sciwatch/handle/2021.sw.kriso/864
ISSN
1225-0767
2287-6715
Abstract
In this paper, a numerical analysis for an internal turret moored vessel located at a 400-m water depth is conducted. The targetvessel has an internal turret that is located at the 0.2 Lpp position from the fore-side, with 3 × 4 complex mooring lines installed around the turretcircumference. To investigate the motion response of the vessel and the structural reliability of the lines, model tests were conducted. The KRISOocean basin has a water depth of 3.2 m, which represents 192m using a scaling of 1:60. In order to precisely represent the real-scale condition,equivalent mooring lines needed to be designed. Truncated mooring lines were designed to supplement the restriction of the flume's water depth andincrease the reliability of the model testing. These truncated mooring lines were composed of two different chains in order to match the pre-tension,simultaneously restoring the curve and variation in the effective line tension. The static similarities were compared using a static pull-out test andfree decaying test, and the dynamic similarities were matched via a regular wave test and combined environments test. Consequently, the designedtruncated mooring system could represent the prototype mooring system relatively well in the aspects of kinematics and dynamics.
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친환경해양개발연구본부 > 친환경연료추진연구센터 > Journal Articles
친환경해양개발연구본부 > 심해공학연구센터 > Journal Articles

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Sung, Hong Gun
친환경해양개발연구본부 (심해공학연구센터)
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