Investigation of Low-Frequency Pitch Motion Characteristics for KRISO Standard Offshore Structure (KSemi) Moored with a Truncation Mooring System
DC Field | Value | Language |
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dc.contributor.author | Park, Byeongwon | - |
dc.contributor.author | Jung, Sungjun | - |
dc.contributor.author | Seo, Min-Guk | - |
dc.contributor.author | Kim, Jinha | - |
dc.contributor.author | Sung, Hong Gun | - |
dc.contributor.author | Park, Jong-Chun | - |
dc.date.accessioned | 2023-12-22T10:31:13Z | - |
dc.date.available | 2023-12-22T10:31:13Z | - |
dc.date.issued | 2023-10 | - |
dc.identifier.issn | 2077-1312 | - |
dc.identifier.issn | 2077-1312 | - |
dc.identifier.uri | https://www.kriso.re.kr/sciwatch/handle/2021.sw.kriso/9747 | - |
dc.description.abstract | In this study, a model test was carried out to evaluate the station-keeping performance of Korea Research Institute of the Ships and Ocean Engineering (KRISO) standard semi-submersible, K-Semi in the Deep Ocean Engineering Basin (DOEB). The test was performed using a 1/50 scaled model with 12 mooring lines. The water depth was set to 3.2 m using a moveable bottom structure and truncated mooring lines. The dynamic behavior of the K-Semi was examined using a free decay test and regular wave as well as irregular wave tests of 1800. Large surge, heave and pitch due to drift motion from second-order effect were observed. The reason for the excessive low-frequency pitch motion is attributed to the restoring force and moment related to the mooring system as excessive surge occurred. The numerical model of K-Semi with the truncated mooring system was tuned and calibrated using model test results such as free decay and regular wave tests. Through numerical analysis, the motion characteristics of the K-Semi were compared with irregular model test results. In the case of a semi-submersible using a mooring system, it is observed that excessive pitch motion due to vertical restoring force and moment may occur when large horizontal displacement occurs. The effect of low-frequency pitch motion related to surge motion is an important factor in upwell estimation as well as second-order motion in referred DNV-GL OTG13. | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | Multidisciplinary Digital Publishing Institute (MDPI) | - |
dc.title | Investigation of Low-Frequency Pitch Motion Characteristics for KRISO Standard Offshore Structure (KSemi) Moored with a Truncation Mooring System | - |
dc.type | Article | - |
dc.publisher.location | 스위스 | - |
dc.identifier.doi | 10.3390/jmse11101842 | - |
dc.identifier.scopusid | 2-s2.0-85175333824 | - |
dc.identifier.wosid | 001159299500001 | - |
dc.identifier.bibliographicCitation | Journal of Marine Science and Engineering, v.11, no.10, pp 1842 | - |
dc.citation.title | Journal of Marine Science and Engineering | - |
dc.citation.volume | 11 | - |
dc.citation.number | 10 | - |
dc.citation.startPage | 1842 | - |
dc.type.docType | Article | - |
dc.identifier.url | https://www.mdpi.com/2077-1312/11/10/1842# | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalResearchArea | Oceanography | - |
dc.relation.journalWebOfScienceCategory | Engineering, Marine | - |
dc.relation.journalWebOfScienceCategory | Engineering, Ocean | - |
dc.relation.journalWebOfScienceCategory | Oceanography | - |
dc.subject.keywordAuthor | low-frequency motion | - |
dc.subject.keywordAuthor | model test | - |
dc.subject.keywordAuthor | mooring system | - |
dc.subject.keywordAuthor | semi-submersible | - |
dc.subject.keywordAuthor | truncated mooring | - |
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