선박의 부가저항 평가를 위한 소프트 계류 모형시험 기법 연구A Study on Soft-Mooring Model Test Techniques for the Evaluation of Added Resistance on Ships
- Other Titles
- A Study on Soft-Mooring Model Test Techniques for the Evaluation of Added Resistance on Ships
- Authors
- Seo, Min-Guk; Park, In Bo; Park, Dong Min; Hwang, Seunghyun
- Issue Date
- 10월-2023
- Publisher
- 대한조선학회
- Keywords
- Added resistance(부가저항); Model test(모형시험); KVLCC2; Soft-mooring test(소프트 계류 시험); Self-propulsion (자체 추진)
- Citation
- 대한조선학회 논문집, v.60, no.5, pp 320 - 331
- Pages
- 12
- Journal Title
- 대한조선학회 논문집
- Volume
- 60
- Number
- 5
- Start Page
- 320
- End Page
- 331
- URI
- https://www.kriso.re.kr/sciwatch/handle/2021.sw.kriso/9721
- DOI
- 10.3744/SNAK.2023.60.5.320
- ISSN
- 1225-1143
- Abstract
- In this study, a model test was conducted using the soft-mooring technique to evaluate the added resistance of the ship in waves. The study also examined the specific factors that should be considered during the soft-mooring test. The main purpose of soft-mooring is to prevent drifting caused by waves by providing horizontal restoring forces. However, it can also create undesired restoring forces in the vertical direction. Therefore, we examined the restoring force of the ship's 6-DOF motion based on the arrangement of the soft-mooring and the height of the mooring connection point. We also checked the corresponding resonance period and drift distance. The soft-mooring test was conducted twice, once with self-propulsion and once without self-propulsion, allowing us to review the advantages and disadvantages of each test technique. The main parameters measured in these model tests were 6DOF motion and added resistance on the ship. We compared these measurements obtained from two different techniques (with and without self-propulsion). Additionally, we also compared the measurements based on the types of measuring sensors used (2D load cells on FP, AP, and 1D load cells on each mooring line) as well as the height of the mooring connection point.
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