Article(id=1242129248245322427, tenantId=1146029695717560320, journalId=1240685776644648972, issueId=1242129246575989412, articleNumber=null, orderNo=null, doi=10.3969/j.issn.1007-7294.2024.01.004, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1690387200000, receivedDateStr=2023-07-27, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1774076290427, onlineDateStr=2026-03-21, pubDate=1705680000000, pubDateStr=2024-01-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1774076290427, onlineIssueDateStr=2026-03-21, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1774076290427, creator=13701087609, updateTime=1774076290427, updator=13701087609, issue=Issue{id=1242129246575989412, tenantId=1146029695717560320, journalId=1240685776644648972, year='2024', volume='28', issue='1', pageStart='1', pageEnd='168', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1774076290029, creator=13701087609, updateTime=1774080061948, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1242145067209666974, tenantId=1146029695717560320, journalId=1240685776644648972, issueId=1242129246575989412, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1242145067213861279, tenantId=1146029695717560320, journalId=1240685776644648972, issueId=1242129246575989412, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=36, endPage=44, ext={EN=ArticleExt(id=1242129248455037632, articleId=1242129248245322427, tenantId=1146029695717560320, journalId=1240685776644648972, language=EN, title=A method of data expansion for marine propeller hydrodynamic performance based on priori knowledge and its application, columnId=1241023037940748650, journalTitle=Journal of Ship Mechanics, columnName=Hydrodynamics, runingTitle=null, highlight=null, articleAbstract=
In recent years, more and more researchers have applied machine learning to predict the performance of ship propellers, but the prediction effectiveness of surrogate model is often affected by the quantity and quality of data used for training. At present, the quantity and quality of the ship propeller performance data are unsatisfactory, and the distribution of data corresponding parameters is relatively centralized and seriously uneven. Therefore, these facts may affect the accuracy and reliability of surrogate models. In order to solve this problem, this paper presents a sample expansion method based on empirical knowledge, and applies it to the prediction of ship propeller hydrodynamic performance. The results show that the sample expansion method can generate the data sample quickly, and improve the reliability and accuracy of the forecasting surrogate model.
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近几年来,越来越多学者致力于采用机器学习进行船舶螺旋桨性能预报,但代理模型的预报效果往往受训练样本的数量和质量影响较大。目前船舶螺旋桨性能数据数量少且质量也不高,即数据对应参数分布较为集中,严重不均匀,这些问题都会影响代理模型预报的准确率与可靠性。为了解决这一实际困难,本文提出一种基于经验知识的样本扩充方法,并以船舶螺旋桨水动力性能的代理模型预报为例进行应用验证。结果表明:本文使用的样本扩充方法可以快速生成数据样本,可以一定程度上改善预报代理模型的可靠性,提升预报精度。
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Open water performance of a propeller, figureFileSmall=/crrz6/2cKRup9H4oHZKyQ==, figureFileBig=DIDRFPL6GruOERXkILFDjg==, tableContent=null), ArticleFig(id=1242129258420704229, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242129248245322427, language=CN, label=图1, caption=
螺旋桨敞水性能曲线, figureFileSmall=/crrz6/2cKRup9H4oHZKyQ==, figureFileBig=DIDRFPL6GruOERXkILFDjg==, tableContent=null), ArticleFig(id=1242129260027122686, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242129248245322427, language=EN, label=Fig.2, caption=
Part of the parameter distribution of the dataset, figureFileSmall=rGSk+k5Jorvqxpd5ZARS4w==, figureFileBig=CjvAnjY1zzGx05AX8d7LLw==, tableContent=null), ArticleFig(id=1242129260115202050, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242129248245322427, language=CN, label=图2, caption=
数据集部分参数分布情况, figureFileSmall=rGSk+k5Jorvqxpd5ZARS4w==, figureFileBig=CjvAnjY1zzGx05AX8d7LLw==, tableContent=null), ArticleFig(id=1242129260207476745, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242129248245322427, language=EN, label=Fig.3, caption=
Distribution of training data with area ratio and pitch ratio, figureFileSmall=2WrAuhP/D0mD7zpbH5Mb8A==, figureFileBig=2HQ5jTVsAgStaUzPdWy4pw==, tableContent=null), ArticleFig(id=1242129260308140046, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242129248245322427, language=CN, label=图3, caption=
训练集数据随盘面比、螺距比分布情况, figureFileSmall=2WrAuhP/D0mD7zpbH5Mb8A==, figureFileBig=2HQ5jTVsAgStaUzPdWy4pw==, tableContent=null), ArticleFig(id=1242129260387831825, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242129248245322427, language=EN, label=Fig.4, caption=
Prediction error of surrogate model, figureFileSmall=CcootFUdC35Q0nIJKnHu0A==, figureFileBig=SrdQewWrc6jJQzQuVJlMfg==, tableContent=null), ArticleFig(id=1242129260484300826, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242129248245322427, language=CN, label=图4, caption=
代理模型预报误差, figureFileSmall=CcootFUdC35Q0nIJKnHu0A==, figureFileBig=SrdQewWrc6jJQzQuVJlMfg==, tableContent=null), ArticleFig(id=1242129260593352735, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242129248245322427, language=EN, label=Fig.5, caption=
Prediction results of a propeller in the validation set, figureFileSmall=4BYL5CSm9/2UzFHbR71KPw==, figureFileBig=JlAVPdlpjvs36tzJuWDahA==, tableContent=null), ArticleFig(id=1242129260689821733, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242129248245322427, language=CN, label=图5, caption=
验证集某螺旋桨预报结果, figureFileSmall=4BYL5CSm9/2UzFHbR71KPw==, figureFileBig=JlAVPdlpjvs36tzJuWDahA==, tableContent=null), ArticleFig(id=1242129260769513514, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242129248245322427, language=EN, label=Fig.6, caption=
Checking results of some training sets, figureFileSmall=hYBV9T23xaXhpjMtl71MzQ==, figureFileBig=07seIVmWnx4VmWWsDsI6hQ==, tableContent=null), ArticleFig(id=1242129260857593902, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242129248245322427, language=CN, label=图6, caption=
部分训练集验算结果, figureFileSmall=hYBV9T23xaXhpjMtl71MzQ==, figureFileBig=07seIVmWnx4VmWWsDsI6hQ==, tableContent=null), ArticleFig(id=1242129260958257205, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242129248245322427, language=EN, label=Fig.7, caption=
Comparison of average error between empirical formula and surrogate model, figureFileSmall=4KQo7YpWNwVGDbe3Z1zM2A==, figureFileBig=vjnXrkl/4FNSmp3ECAMGSQ==, tableContent=null), ArticleFig(id=1242129261037948984, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242129248245322427, language=CN, label=图7, caption=
经验公式与代理模型平均误差情况对比, figureFileSmall=4KQo7YpWNwVGDbe3Z1zM2A==, figureFileBig=vjnXrkl/4FNSmp3ECAMGSQ==, tableContent=null), ArticleFig(id=1242129261092474940, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242129248245322427, language=EN, label=Fig.8, caption=
Process of sample expansion method based on empirical formula, figureFileSmall=e+sQksuNFrl81YSCHOSsUw==, figureFileBig=Lg/5c0DfC9/XWIlUFijQNw==, tableContent=null), ArticleFig(id=1242129261167972416, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242129248245322427, language=CN, label=图8, caption=
基于经验公式的样本扩充方法流程, figureFileSmall=e+sQksuNFrl81YSCHOSsUw==, figureFileBig=Lg/5c0DfC9/XWIlUFijQNw==, tableContent=null), ArticleFig(id=1242129261260247111, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242129248245322427, language=EN, label=Fig.9, caption=
Distribution of expanded training set with area ratio and pitch ratio, figureFileSmall=TF5xI4G1k+hsaOfHPBCfBQ==, figureFileBig=k+76TSlyox0sPeOxOZDQ2Q==, tableContent=null), ArticleFig(id=1242129261339938890, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242129248245322427, language=CN, label=图9, caption=
扩充后训练集数据随盘面比及螺距比分布, figureFileSmall=TF5xI4G1k+hsaOfHPBCfBQ==, figureFileBig=k+76TSlyox0sPeOxOZDQ2Q==, tableContent=null), ArticleFig(id=1242129261444796495, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242129248245322427, language=EN, label=Fig.10, caption=
Random forest structure and super parameter adjustment results, figureFileSmall=8+uBkJDvacjamjI/jziUSQ==, figureFileBig=ipwi2azxpBhBf3mU5nx7sQ==, tableContent=null), ArticleFig(id=1242129261532876884, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242129248245322427, language=CN, label=图10, caption=
随机森林结构及超参数调整结果, figureFileSmall=8+uBkJDvacjamjI/jziUSQ==, figureFileBig=ipwi2azxpBhBf3mU5nx7sQ==, tableContent=null), ArticleFig(id=1242129261612568667, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242129248245322427, language=EN, label=Fig.11, caption=
Prediction error of surrogate model before and after expansion, figureFileSmall=08XdQfM3PcIhCAhkqwxgVA==, figureFileBig=aY8Q65j9tejEpwQ9RfxpaQ==, tableContent=null), ArticleFig(id=1242129261679677534, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242129248245322427, language=CN, label=图11, caption=
扩充前后代理模型预报误差, figureFileSmall=08XdQfM3PcIhCAhkqwxgVA==, figureFileBig=aY8Q65j9tejEpwQ9RfxpaQ==, tableContent=null), ArticleFig(id=1242129261780340835, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242129248245322427, language=EN, label=Fig.12, caption=
Comparison of propeller open water performance predicted by surrogate model and experimental data, figureFileSmall=zzhtZG7VnZnIsZEHGKomlg==, figureFileBig=KTHlNGt2LZC7r5+lxgdQEg==, tableContent=null), ArticleFig(id=1242129261885198440, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242129248245322427, language=CN, label=图12, caption=
扩充后代理模型预报的螺旋桨敞水性能曲线, figureFileSmall=zzhtZG7VnZnIsZEHGKomlg==, figureFileBig=KTHlNGt2LZC7r5+lxgdQEg==, tableContent=null), ArticleFig(id=1242129261981667435, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242129248245322427, language=EN, label=Fig.13, caption=
Comparison of average errors of open water performance prediction before and after expansion, figureFileSmall=vN1AoTt7ymsg9ueTOnftxA==, figureFileBig=hD5/ykMdNt0wrF7lZ3OMrg==, tableContent=null), ArticleFig(id=1242129262069747823, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242129248245322427, language=CN, label=图13, caption=
扩充前后螺旋桨水动力预报误差对比, figureFileSmall=vN1AoTt7ymsg9ueTOnftxA==, figureFileBig=hD5/ykMdNt0wrF7lZ3OMrg==, tableContent=null), ArticleFig(id=1242129262157828214, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242129248245322427, language=EN, label=Tab.1, caption=
Correlation coefficient of extended equation
, figureFileSmall=null, figureFileBig=null, tableContent=
), ArticleFig(id=1242129262229131383, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242129248245322427, language=CN, label=表1, caption=
扩充方程相关系数
, figureFileSmall=null, figureFileBig=null, tableContent=
), ArticleFig(id=1242129262317211772, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242129248245322427, language=EN, label=Tab.2, caption=
Extended range of propeller data samples
, figureFileSmall=null, figureFileBig=null, tableContent=
| 桨叶数 | 扩充的盘面比 | 扩充的螺距比 | 进速系数 |
|---|
| 3 | 0.4,0.45,0.7,0.75,0.8,0.9 | 0.7,1.1,1.2,1.3 | 0.1~1.4 |
| 4 | 0.6,0.65,0.75,0.8,0.9 | 0.55,0.65,0.95 | 0.1~1.4 |
| 5 | 0.55,0.7,0.8,0.85,0.9,1,1.1 | 0.55,0.65,0.7,0.85 | 0.1~1.66 |
| 6 | 0.6,0.75,0.8,0.9 | 0.7,1.1,1.2 | 0.1~1.66 |
| 7 | 0.6,0.65,0.75,0.8 | 0.7,1.1 | 0.1~1.35 |
), ArticleFig(id=1242129262401097857, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1242129248245322427, language=CN, label=表2, caption=
螺旋桨数据样本扩充范围
, figureFileSmall=null, figureFileBig=null, tableContent=
| 桨叶数 | 扩充的盘面比 | 扩充的螺距比 | 进速系数 |
|---|
| 3 | 0.4,0.45,0.7,0.75,0.8,0.9 | 0.7,1.1,1.2,1.3 | 0.1~1.4 |
| 4 | 0.6,0.65,0.75,0.8,0.9 | 0.55,0.65,0.95 | 0.1~1.4 |
| 5 | 0.55,0.7,0.8,0.85,0.9,1,1.1 | 0.55,0.65,0.7,0.85 | 0.1~1.66 |
| 6 | 0.6,0.75,0.8,0.9 | 0.7,1.1,1.2 | 0.1~1.66 |
| 7 | 0.6,0.65,0.75,0.8 | 0.7,1.1 | 0.1~1.35 |
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