摘要
对现有的船舶航速估算方法分析比较，提出了大型油船的航速估算方法。其中有效功率估算是根据上海船研所肥大船系试验图谱和实船试验资料经分析、修正得出，与荷兰Holtrop法、大连造船厂法比较，本文方法均方差最小，估算值与试验值最接近；自航因子估算以SSPA大油轮系列自航试验资料为基础，用上海船研所大量肥大船模型自航试验数据修正得出。本文还对螺旋桨初步设计和相关补贴等作了研究。编写了大型油船的航速估算计算程序系统，适用范围为：CB＝0．80～0．85，L／B＝5．20～6．80，B／T＝2．20～4．00，Fr＜0．2。
On the basis of analyzing the present speed prediction methods, this paper is mainly concerned with the speed prediction of large tankers. In deriving a new effective horse power prediction method, the data of SSSRI full ship series resistance tests with corrections of bulbous bow and ship form and the data of a great number of resistance and propulsion tests for full ship forms (if possible with trial tests also) were used. The mew method (SSSRI method) is a three dimensional one and it gives the least standard deviation in comparison with the Holtrop method and the Dalian Shipyard methods by using more than 40 full ship model test results.In the calculation of propulsion factors, a corrected formula are used which are based on the SSPA formula for full tankers with a correction by using a great number of SSSRI model test results. In combination with the propeller design, the speed prediction can easily be obtained. A computer program finally giving the speed prediction was compiled including all the above calculations. It is suitable to use this method in the following range: CB =0. 80－0. 85, L/B = 5. 2－6.8, B/T =2. 2－4. 0, Fr＜0.2.
出处
《中国造船》
EI
CSCD
北大核心
1994年第4期1-12,共12页
Shipbuilding of China
关键词
大型油船
有效功率
自航因子
油船
航速
估算
Full tankers, Speed prediction, Effective horse power, Self propulsion factors
