单次船模阻力试验不确定度A类评定方法  

A Method for Type an Uncertainty Estimate of Single-run Ship Model Resistance Test

作　　者：张立 陈伟民[1,2,3] 胡健[3] ZHANG Li;CHEN Wei-min;HU Jian(State Key Laboratory of Maritime Technology and Safety,Shanghai Ship and Shipping Research Institute Co.,Ltd.,Shanghai 200135,China;Key Laboratory of Marine Technology Ministry of Communications,Shanghai Ship and Shipping Research Institute Co.,Ltd.,Shanghai 200135,China;College of Shipbuilding Engineering,Harbin Engineering University,Harbin 1500001,China)

机构地区：[1]上海船舶运输科学研究所有限公司水路交通控制全国重点实验室,上海200135 [2]上海船舶运输科学研究所有限公司航运技术交通行业重点实验室,上海200135 [3]哈尔滨工程大学船舶工程学院,哈尔滨150001

出　　处：《船海工程》2024年第3期74-77,83,共5页Ship & Ocean Engineering

基　　金：工信部项目(工信部装函[2018]169号)。

摘　　要：通过单次试验实现不确定度A类评定的方法能够节省时间和成本,梳理阻力试验的采样和分析方法,以及不确定度的A类评定方法,从单次试验的采样时间序列出发,采用一种时间序列截断(time series truncation,TST)方法,提取不同计数周期的连续的时间序列,以此生成一系列的观测样本,据此进行单次试验的均值输出和不确定度的A类评定,并与重复性试验结果对比。结果表明,TST方法的不确定度A类评定结果与重复性试验方法近似,满足工程应用要求;适用于任意单次试验;可在试验过程中实时分析。通过应用TST方法,能够在单次阻力试验时,提升试验结果输出的稳定性。The method of achieving type A uncertainty estimate through a single-run experiment can save time and economic costs.The sampling and analysis methods of resistance tests and the type A uncertainty were summarized.Based on the time series of tests sampling,a time series truncation(TST)method was used to extract continuous time series of different counting periods,generating a series of observation samples.The mean output and type A uncertainty of the single-run test were conducted,and compared with the results of repeat tests.The results showed that the type A evaluation results of the TST method are of the same magnitude as the repeat tests,meeting the requirements for engineering applications.It is applicable to any single-run test.It can also be analyzed in real-time during the experiment.By applying the TST method,the accuracy and stability of the experimental results can be improved in single-run resistance test.

关 键 词：阻力试验 不确定度 A类评定 船模试验 

分 类 号：U661.7[交通运输工程—船舶及航道工程]