Test studies of the resistance and seakeeping performance of a trimaran planing hull

• Autorzy: Ma W. , Sun H. , Sun H. , Zou J. , Zhuang J.
• Języki publikacji: EN

Abstrakty

EN

Towing tank tests in calm water were performed on a trimaran planing hull to verify its navigational properties with different displacements and centres of gravity, as well as to assess the effects of air jets and bilge keels on the hull’s planing capabilities, and to increase the longitudinal stability of the hull. Hydrostatic roll tests, zero speed tests, and sea trials in the presence of regular waves were conducted to investigate the hull’s seakeeping ability. The test results indicate that the influence of the location of the centre of gravity on the hull resistance is similar to that of a normal trimaran planing hull; namely, moving the centre of gravity backward will reduce the resistance but lower the stability. Bilge keels improve the longitudinal stability but slightly affect the resistance, and the presence of air jets in the hull’s channels decreases the trim angle and increases heaving but has little effect on the resistance. Frequent small-angle rolling occurs in waves. The heaving and pitching motions peak at the encounter frequency of , and the peaks increase with velocity and move towards greater encounter frequencies. When the encounter frequency exceeds, the hull motion decreases, which leads to changes in the navigation speed and frequency.

Słowa kluczowe

EN

trimaran planing hull; appendix; resistance; seakeeping; model test

• Wydawca: Gdańsk University of Technology, Faculty of Ocean Engineering & Ship Technology
• Czasopismo: Polish Maritime Research
• Rocznik: 2015
• Tom: nr 1
• Strony: 22—27
• Opis fizyczny: Bibliogr. 12 poz., rys., tab.

Twórcy

autor

Ma W.

• College of Shipbuilding Engineering, Harbin, Engineering University, Nan tong Street Harbin, HLJ, P.R. China

autor

Sun H.

• College of Shipbuilding Engineering, Harbin, Engineering University, Nan tong Street Harbin, HLJ, P.R. China

autor

Sun H.

autor

Zou J.

autor

Zhuang J.

Bibliografia

• 1. Dong Wencai, Guo Rixiu: Effects of Different Air Injection Techniques on Resistance of Stepped Planing Boat [J]. Shipbuilding of China, 2000, 41(2), pp. 8-14
• 2. Dong Wencai,Guo Rixiu: Study on the mechanism of resistance reduction to the stepped planing craft by air injection [J]. Journal of Ship Mechanics, 2002, 6(6), pp.55-61
• 3. Dong Wencai, Guo Rixiu: Experimental investigation on the resistance reduction of stepped planing craft by formation of air cavity [J]. Journal of Hydrodynamics, 2002, 17(4), pp. 440-447
• 4. Xia Xiang: Matching performance of propulsion system for hypervelocity step planing boat [J]. Chinese Journal of Ship Research, 2008, 3(2), pp. 39-42
• 5. Fridsma, G.: A Systematic Study of the Rough-Water Performance of Planing Boat, Davidson Laboratory, Stevens Institute, Report R-1275, Nov, 1969
• 6. Fridsma, G.: A Systematic Study of the Rough-Water Performance of Planing Boat-Irregular Waves, Part II, Davidson Laboratory, Stevens Institute, Report R-1495, March, 1971
• 7. Toru KATAYAMA, Takashige HINAMI, Yoshiho IKEDA: Longitudinal Motion of a Super High-Speed Planing Craft in Regular Head Waves [C]. The 4th Osaka Colloquium on Seakeeping Performance of Ships, 2000, pp. 214-220
• 8. DONG Wen-Cai: Test Study of Deep V Planing Hull on Longitudinal Motion [J], 2004, 26(2), pp. 14-16
• 9. TAO Yao-Sen: Ship Seakeeping Performance [M], Shanghai Jiao Tong University Press, 1985, pp. 52-83
• 10. LI Ji-De: Ship Seakeeping Performance [M]. Harbin Institute of Marine Engineering Press. 1992, pp. 30-79
• 11. SHENG Zhen-Bang, LIU Ying-Zhong: Principles of Ship [M]. Shanghai Jiao Tong University Press,2004, pp. 376- 433
• 12. WANG Yu-bin: Model Tests of Transitional Speedboat on Seakeeping Performance [J]. Engineer Equipment Research, 2005, 24(2), pp. 23-28.