大方形系数船型的试验研究及经济分析  

Experimental Investigation and Economy Analysis of Ship Form with High Block Coefficient

作　　者：王智发[1] 方学智[1] 刘锦秋[1] 

机构地区：[1]华中理工大学船舶和海洋工程系

出　　处：《华中理工大学学报》1992年第1期65-70,共6页Journal of Huazhong University of Science and Technology

摘　　要：本文讨论了大方形系数(C_B≥0.90)船型型线设计要点,给出了船模阻力及自航试验结果,并将大方形系数船型与常规2万吨级实船进行了经济性对比,揭示了大方形系数船型良好的经济性.The line design of ship form with a high block coefficient (CB) is described. Estimation formulae for selecting the lengths of entrance and run are proposed. Cylindrical bow single cochlea-channeled stern ship lines with a high block coefficient and better propulsive performance are developed. The results of resistance tests, self-propulsion tests and wave height measurements on six ship models show that at CB≥0.92, better regularity of ship form resistance is observed, while at Fn<0.16, the resistance performance is better. However, at Fn>0.16, the resistance of ship form with a high block coefficient increases significantly. A comparison with a 20000 dwt full-scale ship of conventional form with the principal dimensions and main engine power rating of the ship kept unchanged shows that the freight transportation per annum of the ship forw with cylindrical bow and single cochlea-channeled stern can be increased by about 70000 tons, and the profit per annum, by about 490 000 yuan (RMB-), while the cost per unit is reduced by about 7%.

关 键 词：船模试验 大方形系数 型线设计 

分 类 号：U662[交通运输工程—船舶及航道工程]