拖曳水池船模阻力试验不确定度分析  

Uncertainty analysis of ship model resistance test in towing tank

作　　者：施奇[1] 杨大明[1] 尹赟凯[1] 

机构地区：[1]江苏科技大学船舶与海洋工程学院,江苏镇江212003

出　　处：《江苏科技大学学报（自然科学版）》2010年第5期428-433,共6页Journal of Jiangsu University of Science and Technology:Natural Science Edition

摘　　要：为了提高拖曳水池船模试验精度和便于相互交流与比较,第22届和23届国际船模试验池会议(ITTC)都推荐世界各国水池在给出试验结果的同时,也给出试验结果的不确定度.文中给出一艘玻璃钢标准船模在江苏科技大学拖曳水池进行重复阻力试验的情况,采用了ITTC建议的不确定度估计方法,对该船模的船型因子(1+K)、湿面积(S)、傅汝德数(Fr)进行了不确定度分析,给出了分析结果.并且计算出在试验速度下各阻力系数Ci的偏差限、精度限和总不确定度,对试验结果进行了综合分析.For improving the accuracy of ship model test in towing tank and easily communicating each other,the 22nd and 23rd International Towing Tank Conferences recommended all the members should perform the uncertainty analysis and give the test result.The resistance tests of a standard ship model made of GFRP were conducted in the towing tank at Jiangsu University of Science and Technology.The uncertainties of the form factor（1＋K）,wetted surface（S）,and Froude number（Fr） of the ship model were analyzed.Furthermore,the deviation limits related to the precision were calculated and uncertainty was estimated in the form of velocity.Finally,all results of the test were analyzed.

关 键 词：船模阻力试验 不确定度分析 阻力系数 

分 类 号：U611.311[交通运输工程—船舶及航道工程]