Citation:
Tatsuhiro Mizobe*,Yasunori Nihei and Yoshiho Ikeda.A Feasibility Study on a New Trimaran PCC in Medium Speed –Performance in Still Water and Strong Wind[J].Journal of Marine Science and Application,2010,(2):137-141.
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A Feasibility Study on a New Trimaran PCC in Medium Speed –Performance in Still Water and Strong Wind
Tatsuhiro Mizobe*,Yasunori Nihei and Yoshiho Ikeda.A Feasibility Study on a New Trimaran PCC in Medium Speed –Performance in Still Water and Strong Wind[J].Journal of Marine Science and Application,2010,(2):137-141.
Info
- Title:
- A Feasibility Study on a New Trimaran PCC in Medium Speed –Performance in Still Water and Strong Wind
- Author(s):
- Tatsuhiro Mizobe*; Yasunori Nihei and Yoshiho Ikeda
- Affilations:
- Keywords:
- trimaran; Pure Car Carrier; EHP; drift angle; speed reduction
- DOI:
- -
- Abstract:
- In the present paper, a new trimaran Pure Car Carrier (PCC) is proposed and a feasibility study on the ship is carried out. In this study, first, the effective horse power (EHP)/car of the PCC running in still water is predicted. By comparing the predicted EHP/car with that of a conventional mono-hull PCC, it is found that the trimaran PCC is superior to the conventional mono-hull PCC at rather higher speed. As ship speed increases, the reduction of the resistance of the trimaran is bigger. It is also found that at common service speed of PCCs, the EHP/car of a small PCC is lower than that of a conventional PCC. Secondly, the optimal L/B of a main-hull of the trimaran PCC in still water is determined. The optimal L/B of the main-hull varies with ship speed and size because the wave resistance decreases but the frictional resistance increases as L/B of the hull increases. As ship size increases, the optimal L/B of the main-hull of the trimaran PCC decreases. Finally, the increase of the resistance of PCCs running in strong wind is predicted. The results show that drift angle and speed reduction of the trimaran PCC are much smaller than the conventional mono-hull PCC because of large side force created by three demi-hulls.
References:
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Fujiwara T, Ueno M, Ikeda Y (2006b). Cruising performance of ships with large superstructures in heavy sea -2nd report: Added resistance induced by wind and waves, and optimum ship routing-. Journal of the Japan Society of Naval Architects and Ocean Engineers, 3, 147-153.
Ikeda Y, Sone T (2007). A concept design of a new trimaran PCC. Conference Proceedings of the Japan Society of Naval Architects and Ocean Engineers, 4, 1-4.
Kijima K, Katsuno T, Nakiri Y (1990). On the manoeuvring performance of a ship with the parameter of loading condition. Journal of the Society of Naval Architects of Japan, 168, 141-148.
Momoki T, Onishi S, Katayama T (2009). A study on wind pressure characteristics of ships with large superstructures. Proceedings of the Nineteenth International Offshore and Polar Engineering Conference. The International Society of Offshore and Polar Engineers, Osaka, Japan, 563-569.
Memo
- Memo:
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