Browse > Article
http://dx.doi.org/10.7837/kosomes.2017.23.6.731

Development of Structural Design Program to apply the Twin-Hull Car-ferry  

Lee, Jung-Ho (Graduate School of Mokpo National Maritime University)
Oh, Jung-Mo (Department of Marine Engineering, Mokpo National Maritime University)
Seo, Kwang-Cheol (Department of Naval Architecture and Ocean Engineering, Mokpo National Maritime University)
Publication Information
Journal of the Korean Society of Marine Environment & Safety / v.23, no.6, 2017 , pp. 731-738 More about this Journal
Abstract
Twin-hulls frequently incur structural damage at connecting members between the hull and deck induced by pitching motions during voyages. so, reasonable reinforcement is necessary around vulnerable spots such as corner knuckle, the chine bottom and inner hull. Since guidelines for structural design are not clear, engineers often respond by reinforcing plate thickness, changing stiffener sizes and reducing frame spacing, etc. These members constitute about 85 % of the longitudinal dimensions of the ship, so it is necessary to locally reinforce certain points to minimize weight stress, and also solve construction cost problems while securing the freeboard margin. Therefore, we developed a new program by analyzing the structural design procedures for the twin car-ferries based on Korean Register of Shipping (KR) High Speed Craft Rules, identifying items that need to be added. In order to ensure the reliability of buckling estimations for procedures and design programs, we conducted a comparative study with other standards and confirmed that differences were minimal.
Keywords
Twin-hull; Car ferry; Structural design; Local reinforcement; Structure Design program;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 Kim, B. J., S. Y. Kwon, S. C. Kim and J. H. Lee(2011), Comparison study and structure analysis to investigate the design rule and criteria of catamaran, Journal of the Society of Naval Architectures of Korea. Vol. 48, No. 6, pp. 479-489.   DOI
2 Park, J. S., J. Y. Ko, K. W. Lee and W. J. Oh(2009), Structural analysis of an 38 feet diffusion style for high-speed catamaran yacht, Journal of Navigation and Port Research, Vol. 33, No. 3, pp. 167-174.   DOI
3 Park, J. S. and J. Y. Ko(2005), Estimation about Local Strength using FE-Analysis for Steel Yacht, Journal of the Korean Society of Marine Environment & Safety, Vol. 11, No. 2, pp. 77-82.
4 KR(2017a), Rules for the Classification of High Speed and Light Craft, Vol. 3, pp. 9-47.
5 DNV-GL software(2015), Rule strength analysis of hull structures, Section scantlings.
6 DNV OS C201(2011), Structural Design of Offshore Units (WSD Method) Sec 9 : Weld connections, pp. 53-59.
7 DNV RP C201(2010), Buckling Strength of Plated Structures, pp. 1-33.
8 KR Software(2015), SeaTrust HullScan, Section longitudinal member calculation.
9 KR(2017b), Guidance Relating to the Rules for the Classification of Steel Ships Pt 7: Ships of special service, Annex. 7-3, pp. 124-134.
10 ABS Guide(2017), Buckling and ultimate strength assessment for offshore structures, Section 3, Plates, stiffened panels and corrugated panels, pp. 23-46.
11 Ship Right-Lloyd's Register(2004), Structural design assessment, primary structures of tankers, Chapter 2 : Primary Structure of Tankers, Section 6 : Buckling acceptance criteria, pp. 40-42.