Article(id=1241699534804415370, tenantId=1146029695717560320, journalId=1227999626482147330, issueId=1241699531444769296, articleNumber=null, orderNo=null, doi=10.16579/j.issn.1001.9669.2025.04.018, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1691856000000, receivedDateStr=2023-08-13, revisedDate=1693497600000, revisedDateStr=2023-09-01, acceptedDate=null, acceptedDateStr=null, onlineDate=1773973838759, onlineDateStr=2026-03-20, pubDate=1744646400000, pubDateStr=2025-04-15, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1773973838759, onlineIssueDateStr=2026-03-20, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1773973838759, creator=13701087609, updateTime=1773973838759, updator=13701087609, issue=Issue{id=1241699531444769296, tenantId=1146029695717560320, journalId=1227999626482147330, year='2025', volume='47', issue='4', pageStart='1', pageEnd='157', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1773973837957, creator=13701087609, updateTime=1773974092709, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1241700600002433947, tenantId=1146029695717560320, journalId=1227999626482147330, issueId=1241699531444769296, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1241700600006628252, tenantId=1146029695717560320, journalId=1227999626482147330, issueId=1241699531444769296, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=148, endPage=157, ext={EN=ArticleExt(id=1241699535064462227, articleId=1241699534804415370, tenantId=1146029695717560320, journalId=1227999626482147330, language=EN, title=Data driven multi-fidelity approximate modeling optimization of stiffened conical shell for large launch vehicle, columnId=1241699532912784251, journalTitle=Journal of Mechanical Strength, columnName=∙Optimization∙Reliability∙, runingTitle=null, highlight=null, articleAbstract=
In order to improve the load-bearing efficiency of the stiffened conical shell in large launch vehicle, the lightweight design of the stiffened conical shell was carried out via a data-driven multi-fidelity approximate modeling optimization method. Aiming at the problems such as low efficiency and insufficient accuracy of the single fidelity approximate modeling optimization method, a data-driven multi-fidelity approximate modeling optimization framework was built based on variable-fidelity expected improvement (VF-EI) point criterion,and accordingly the optimization design of stiffened conical shell structure was carried out. Based on the finite element models of stiffened conical shells with different mesh sizes, a Co-Kriging multi-fidelity approximate model for the collapse load of stiffened conical shells was established. In the optimization iteration, multi-fidelity sampling points were generated by using VF-EI point criterion, and the global and local approximation accuracy of Co-Kriging multi-fidelity approximation model was improved sequently. Moreover, the optimization efficiency and accuracy of the proposed method were demonstrated by comparing with radial basis function approximation model and Kriging model. Besides, 11. 5% weight reduction of the optimized stiffened conical shell structure is obtained compared with the initial design, which has certain engineering application value.
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为提高大型运载火箭加筋圆锥壳舱段结构轴压承载效率,开展了数据驱动的加筋圆锥壳多保真度近似建模轻量化设计。针对单保真度近似建模优化方法效率不高、精度不足等问题,搭建了基于变可信度期望改进(Variable-Fidelity Expected Improvement, VF-EI)加点准则的数据驱动多保真度近似建模优化框架,并据此开展加筋圆锥壳结构轻量化设计。综合利用不同网格规模的加筋圆锥壳有限元模型,建立了加筋圆锥壳极限承载的Co-Kriging多保真度近似模型;优化迭代中,利用VF-EI加点准则生成多保真度采样点,以此序列提升Co-Kriging多保真度近似模型的全局和局部近似精度。典型数值和工程算例验证了上述方法的有效性,相比径向基函数近似模型和Kriging模型,Co-Kriging多保真度近似建模优化方法的效率和精度更高,获得了相比初始设计减重11.5%的优化加筋圆锥壳结构,具有一定的工程应用价值。
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, authorsList=陈超磊, 王志祥, 雷勇军, 王婕)}, authors=[Author(id=1241779319119347878, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699534804415370, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=2290669225@qq.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1241779319224205480, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699534804415370, authorId=1241779319119347878, language=EN, stringName=Chaolei CHEN, firstName=Chaolei, middleName=null, lastName=CHEN, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1.中国人民解放军63768部队,西安 710600, bio={"content":"
陈超磊,男,2000年生,江西宜春人,助理工程师;主要研究方向为结构优化;E-mail:2290669225@qq.com。
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陈超磊,男,2000年生,江西宜春人,助理工程师;主要研究方向为结构优化;E-mail:2290669225@qq.com。
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2.College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1241779319652024494, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699534804415370, authorId=1241779319417143467, language=CN, stringName=王志祥, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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2.College of Aerospace Science and Engineering, National University of Defense Technology, Changsha 410073, China
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2.国防科技大学 空天科学学院,长沙 410073
3.空天任务智能规划与仿真湖南省重点实验室,长沙 410073, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1241779318767026332, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699534804415370, xref=2., ext=[AuthorCompanyExt(id=1241779318775414941, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699534804415370, companyId=1241779318767026332, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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Geometry configuration of stiffened conical shell, figureFileSmall=tZ1KVZVWd2ayFl7NcPWgZA==, figureFileBig=ef9W1vlnZDpPS7l3RzpK+A==, tableContent=null), ArticleFig(id=1241779323015856325, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699534804415370, language=CN, label=图1, caption=
加筋圆锥壳几何构型, figureFileSmall=tZ1KVZVWd2ayFl7NcPWgZA==, figureFileBig=ef9W1vlnZDpPS7l3RzpK+A==, tableContent=null), ArticleFig(id=1241779323225571526, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699534804415370, language=EN, label=Fig. 2, caption=
End frame,middle frame and stringer section configuration, figureFileSmall=k50yhJklMBPnLQ8zMgKFeg==, figureFileBig=75VblRzUar1UmwrpG9DeJw==, tableContent=null), ArticleFig(id=1241779323317846215, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699534804415370, language=CN, label=图2, caption=
端框、中间框以及桁条截面构型, figureFileSmall=k50yhJklMBPnLQ8zMgKFeg==, figureFileBig=75VblRzUar1UmwrpG9DeJw==, tableContent=null), ArticleFig(id=1241779323439481032, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699534804415370, language=EN, label=Fig. 3, caption=
Load displacement curves of different scale grids, figureFileSmall=ifjSx26srxSnrHCgA+WB0Q==, figureFileBig=GAiTwSZ5JL8M2K2bdsylwA==, tableContent=null), ArticleFig(id=1241779323519172809, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699534804415370, language=CN, label=图3, caption=
不同规模网格载荷位移曲线, figureFileSmall=ifjSx26srxSnrHCgA+WB0Q==, figureFileBig=GAiTwSZ5JL8M2K2bdsylwA==, tableContent=null), ArticleFig(id=1241779323615641802, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699534804415370, language=EN, label=Fig. 4, caption=
Diagram of the nearest neighbor sampling method, figureFileSmall=+lV9JaeEvwf6dXS67l4HGA==, figureFileBig=xq7j6gzhtT1arOfYG9MyCw==, tableContent=null), ArticleFig(id=1241779323691139275, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699534804415370, language=CN, label=图4, caption=
最近邻域采样方法示意图, figureFileSmall=+lV9JaeEvwf6dXS67l4HGA==, figureFileBig=xq7j6gzhtT1arOfYG9MyCw==, tableContent=null), ArticleFig(id=1241779323846328524, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699534804415370, language=EN, label=Fig. 5, caption=
Flow chart of the sequence approximate optimization method, figureFileSmall=x514RFyPqGkAmQVLXAHVpA==, figureFileBig=0Jxlm/i/IM09IIRZhBh5ww==, tableContent=null), ArticleFig(id=1241779323938603213, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699534804415370, language=CN, label=图5, caption=
序列近似优化方法流程图, figureFileSmall=x514RFyPqGkAmQVLXAHVpA==, figureFileBig=0Jxlm/i/IM09IIRZhBh5ww==, tableContent=null), ArticleFig(id=1241779324064432334, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699534804415370, language=EN, label=Fig. 6, caption=
Example of test results, figureFileSmall=4Vh/0a1h4jPeDtgfDl37cQ==, figureFileBig=Wxcj8jkahQJ7KiMMOi8Zdg==, tableContent=null), ArticleFig(id=1241779324349645007, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699534804415370, language=CN, label=图6, caption=
算例测试结果, figureFileSmall=4Vh/0a1h4jPeDtgfDl37cQ==, figureFileBig=Wxcj8jkahQJ7KiMMOi8Zdg==, tableContent=null), ArticleFig(id=1241779324416753872, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699534804415370, language=EN, label=Fig. 7, caption=
Correlation function image after filling point, figureFileSmall=RxUDBSAG+NQx0ZxVc5u6AQ==, figureFileBig=o1KxDnu1Y3AqbK/dzeGPYw==, tableContent=null), ArticleFig(id=1241779324546777297, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699534804415370, language=CN, label=图7, caption=
加点后相关函数图像, figureFileSmall=RxUDBSAG+NQx0ZxVc5u6AQ==, figureFileBig=o1KxDnu1Y3AqbK/dzeGPYw==, tableContent=null), ArticleFig(id=1241779324647440594, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699534804415370, language=EN, label=Fig. 8, caption=
RBF approximation model,Kriging approximation model and Co-Kriging approximation model, figureFileSmall=eJ/Er4PbHZh/91pG4cSqzg==, figureFileBig=0Q4SgrML+sWy6d+eLdn2cw==, tableContent=null), ArticleFig(id=1241779324714549459, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699534804415370, language=CN, label=图8, caption=
RBF近似模型、Kriging近似模型及Co-Kriging近似模型近似精度, figureFileSmall=eJ/Er4PbHZh/91pG4cSqzg==, figureFileBig=0Q4SgrML+sWy6d+eLdn2cw==, tableContent=null), ArticleFig(id=1241779324802629844, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699534804415370, language=EN, label=Fig. 9, caption=
Mass iteration history and displacement nebulogram of reinforced conical shell structure, figureFileSmall=DoaoeoMO+MomCa9cDJCqQQ==, figureFileBig=id3sZvlt69mdg+4UmmoPvQ==, tableContent=null), ArticleFig(id=1241779324899098837, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699534804415370, language=CN, label=图9, caption=
加筋圆锥壳结构质量迭代历程及位移云图, figureFileSmall=DoaoeoMO+MomCa9cDJCqQQ==, figureFileBig=id3sZvlt69mdg+4UmmoPvQ==, tableContent=null), ArticleFig(id=1241779325041705174, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699534804415370, language=EN, label=Fig. 10, caption=
Ultimate load iteration history of reinforced conical shell structure, figureFileSmall=otjPCpoZMnErVRXD+EKH3w==, figureFileBig=byLZ2J4BDMYRPY7Tn22xbg==, tableContent=null), ArticleFig(id=1241779325180117207, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699534804415370, language=CN, label=图10, caption=
加筋圆锥壳结构极限载荷迭代历程, figureFileSmall=otjPCpoZMnErVRXD+EKH3w==, figureFileBig=byLZ2J4BDMYRPY7Tn22xbg==, tableContent=null), ArticleFig(id=1241779326677483736, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699534804415370, language=EN, label=Fig. 11, caption=
Displacement-load curve of reinforced conical shell optimized structure (based on Co-Kriging proxy model), figureFileSmall=PzXXGyMlI4F2JmlVOotMZg==, figureFileBig=C9sJD3NynO1vDILWJ5Ae5Q==, tableContent=null), ArticleFig(id=1241779326803312857, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699534804415370, language=CN, label=图11, caption=
加筋圆锥壳优化结构位移-载荷曲线图(基于Co-Kriging代理模型), figureFileSmall=PzXXGyMlI4F2JmlVOotMZg==, figureFileBig=C9sJD3NynO1vDILWJ5Ae5Q==, tableContent=null), ArticleFig(id=1241779326887198938, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699534804415370, language=EN, label=Fig. 12, caption=
Stress nephogram and equivalent plastic strain nephogram of reinforced conical shell structure, figureFileSmall=KeWCkyxNi9g2FyIegQ1icA==, figureFileBig=mON89d7g+s1UY7+fIU8tZA==, tableContent=null), ArticleFig(id=1241779326966890715, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699534804415370, language=CN, label=图12, caption=
加筋圆锥壳结构应力云图与等效塑性应变云图, figureFileSmall=KeWCkyxNi9g2FyIegQ1icA==, figureFileBig=mON89d7g+s1UY7+fIU8tZA==, tableContent=null), ArticleFig(id=1241779327063359708, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699534804415370, language=EN, label=Tab. 1, caption=
Structure parameters table of the stiffened conical shell
, figureFileSmall=null, figureFileBig=null, tableContent=
变量 Variable | 初始值 Initial value | 变量 Variable | 初始值 Initial value | 变量 Variable | 初始值 Initial value |
|---|
| R1/mm | 4 750.0 | θDK/(°) | 4.0 | hfb/mm | 40.0 |
| R2/mm | 3 750.0 | aZJK/mm | 25.0 | tfb/mm | 8.0 |
| θ/(°) | 11.3 | bZJK/mm | 80.0 | wyy/mm | 80.0 |
| aDK/mm | 46.0 | t1ZJK/mm | 2.0 | tyy/mm | 15.0 |
| bDK/mm | 75.0 | t2ZJK/mm | 2.0 | tmp/mm | 1.5 |
| cDK/mm | 6.0 | wUP/mm | 50.0 | nHT | 40 |
| dDK/mm | 2.0 | tUP/mm | 6.0 | — | — |
), ArticleFig(id=1241779327143051485, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699534804415370, language=CN, label=表1, caption=
加筋圆锥壳结构参数表
, figureFileSmall=null, figureFileBig=null, tableContent=
变量 Variable | 初始值 Initial value | 变量 Variable | 初始值 Initial value | 变量 Variable | 初始值 Initial value |
|---|
| R1/mm | 4 750.0 | θDK/(°) | 4.0 | hfb/mm | 40.0 |
| R2/mm | 3 750.0 | aZJK/mm | 25.0 | tfb/mm | 8.0 |
| θ/(°) | 11.3 | bZJK/mm | 80.0 | wyy/mm | 80.0 |
| aDK/mm | 46.0 | t1ZJK/mm | 2.0 | tyy/mm | 15.0 |
| bDK/mm | 75.0 | t2ZJK/mm | 2.0 | tmp/mm | 1.5 |
| cDK/mm | 6.0 | wUP/mm | 50.0 | nHT | 40 |
| dDK/mm | 2.0 | tUP/mm | 6.0 | — | — |
), ArticleFig(id=1241779327277269214, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699534804415370, language=EN, label=Tab. 2, caption=
Calculation results of different scale grids in the reinforcement
, figureFileSmall=null, figureFileBig=null, tableContent=
计算结果 Calculation result | 筋格内网格数 Number of grids in the reinforcement |
|---|
| 5×10 | 10×10 | 10×20 | 15×20 | 15×30 |
|---|
计算耗时 Computing time/h | 0.58 | 0.61 | 0.74 | 0.92 | 1.03 |
耗时比 Time consuming ratio | 0.56 | 0.59 | 0.72 | 0.89 | 1 |
极限载荷 Ultimate load/N | 4.07×107 | 3.39×107 | 2.28×107 | 2.15×107 | 2.04×107 |
载荷误差 Load error/% | 99.51 | 66.18 | 11.76 | 5.39 | 0 |
), ArticleFig(id=1241779327386321119, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699534804415370, language=CN, label=表2, caption=
筋格内不同规模网格计算结果
, figureFileSmall=null, figureFileBig=null, tableContent=
计算结果 Calculation result | 筋格内网格数 Number of grids in the reinforcement |
|---|
| 5×10 | 10×10 | 10×20 | 15×20 | 15×30 |
|---|
计算耗时 Computing time/h | 0.58 | 0.61 | 0.74 | 0.92 | 1.03 |
耗时比 Time consuming ratio | 0.56 | 0.59 | 0.72 | 0.89 | 1 |
极限载荷 Ultimate load/N | 4.07×107 | 3.39×107 | 2.28×107 | 2.15×107 | 2.04×107 |
载荷误差 Load error/% | 99.51 | 66.18 | 11.76 | 5.39 | 0 |
), ArticleFig(id=1241779327478595808, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699534804415370, language=EN, label=Tab. 3, caption=
Value range of the reinforced conical shell structure parameters
, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量Variable | 上限Upper limit | 下限Lower limit |
|---|
| aDK/mm | 45.0 | 80.0 |
| bDK/mm | 60.0 | 90.0 |
| cDK/mm | 3.0 | 10.0 |
| dDK/mm | 3.0 | 10.0 |
| θDK/(°) | 4.0 | 5.0 |
| aZJK/mm | 20.0 | 40.0 |
| bZJK/mm | 75.0 | 100.0 |
| nHT | 40 | 100 |
| t1ZJK/mm | 3.0 | 10.0 |
| t2ZJK/mm | 3.0 | 10.0 |
| wUP/mm | 30.0 | 60.0 |
| tUP/mm | 3.0 | 15.0 |
| hfb/mm | 30.0 | 100.0 |
| tfb/mm | 3.0 | 15.0 |
| wyy/mm | 50.0 | 100.0 |
| tyy/mm | 3.0 | 15.0 |
| tmp/mm | 1.2 | 1.5 |
), ArticleFig(id=1241779327583453409, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699534804415370, language=CN, label=表3, caption=
加筋圆锥壳结构参数取值范围
, figureFileSmall=null, figureFileBig=null, tableContent=
| 变量Variable | 上限Upper limit | 下限Lower limit |
|---|
| aDK/mm | 45.0 | 80.0 |
| bDK/mm | 60.0 | 90.0 |
| cDK/mm | 3.0 | 10.0 |
| dDK/mm | 3.0 | 10.0 |
| θDK/(°) | 4.0 | 5.0 |
| aZJK/mm | 20.0 | 40.0 |
| bZJK/mm | 75.0 | 100.0 |
| nHT | 40 | 100 |
| t1ZJK/mm | 3.0 | 10.0 |
| t2ZJK/mm | 3.0 | 10.0 |
| wUP/mm | 30.0 | 60.0 |
| tUP/mm | 3.0 | 15.0 |
| hfb/mm | 30.0 | 100.0 |
| tfb/mm | 3.0 | 15.0 |
| wyy/mm | 50.0 | 100.0 |
| tyy/mm | 3.0 | 15.0 |
| tmp/mm | 1.2 | 1.5 |
), ArticleFig(id=1241779327658950882, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699534804415370, language=EN, label=Tab. 4, caption=
Optimization results of reinforced conical shell structure
, figureFileSmall=null, figureFileBig=null, tableContent=
变量 Variables | 初始设计参数Initial design parameter | RBF | Kriging | Co-Kriging |
|---|
| aDK/mm | 71.32 | 62.20 | 61.93 | 62.37 |
| bDK/mm | 82.71 | 78.49 | 72.96 | 78.66 |
| cDK/mm | 4.63 | 4.93 | 3.00 | 4.99 |
| dDK/mm | 4.33 | 3.86 | 6.26 | 3.85 |
| θDK/(°) | 4.06 | 4.58 | 4.44 | 4.57 |
| aZJK/mm | 30.88 | 33.27 | 28.10 | 32.82 |
| bZJK/mm | 92.29 | 91.91 | 83.61 | 91.71 |
| nHT | 68 | 44 | 70 | 43 |
| t1ZJK/mm | 3.56 | 3.03 | 4.83 | 3.03 |
| t2ZJK/mm | 5.32 | 6.81 | 5.75 | 6.87 |
| wUP/mm | 34.51 | 48.37 | 41.66 | 47.75 |
| tUP/mm | 5.38 | 7.30 | 6.78 | 7.31 |
| hfb/mm | 75.09 | 97.46 | 77.84 | 97.05 |
| tfb/mm | 3.51 | 4.85 | 4.14 | 4.88 |
| wyy/mm | 81.70 | 74.33 | 70.95 | 74.29 |
| tyy/mm | 11.15 | 14.75 | 9.12 | 14.43 |
| tmp/mm | 1.48 | 1.23 | 1.31 | 1.23 |
| M/kg | 3 270.84 | 2 963.37 | 3 149.87 | 2 892.99 |
| Fcr/kN | 51 204.5 | 51 072.9 | 50 125.7 | 50 457.2 |
迭代次数 Number of iterations | — | 23 | 2 | 18 |
), ArticleFig(id=1241779327751225571, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699534804415370, language=CN, label=表4, caption=
加筋圆锥壳结构优化结果
, figureFileSmall=null, figureFileBig=null, tableContent=
变量 Variables | 初始设计参数Initial design parameter | RBF | Kriging | Co-Kriging |
|---|
| aDK/mm | 71.32 | 62.20 | 61.93 | 62.37 |
| bDK/mm | 82.71 | 78.49 | 72.96 | 78.66 |
| cDK/mm | 4.63 | 4.93 | 3.00 | 4.99 |
| dDK/mm | 4.33 | 3.86 | 6.26 | 3.85 |
| θDK/(°) | 4.06 | 4.58 | 4.44 | 4.57 |
| aZJK/mm | 30.88 | 33.27 | 28.10 | 32.82 |
| bZJK/mm | 92.29 | 91.91 | 83.61 | 91.71 |
| nHT | 68 | 44 | 70 | 43 |
| t1ZJK/mm | 3.56 | 3.03 | 4.83 | 3.03 |
| t2ZJK/mm | 5.32 | 6.81 | 5.75 | 6.87 |
| wUP/mm | 34.51 | 48.37 | 41.66 | 47.75 |
| tUP/mm | 5.38 | 7.30 | 6.78 | 7.31 |
| hfb/mm | 75.09 | 97.46 | 77.84 | 97.05 |
| tfb/mm | 3.51 | 4.85 | 4.14 | 4.88 |
| wyy/mm | 81.70 | 74.33 | 70.95 | 74.29 |
| tyy/mm | 11.15 | 14.75 | 9.12 | 14.43 |
| tmp/mm | 1.48 | 1.23 | 1.31 | 1.23 |
| M/kg | 3 270.84 | 2 963.37 | 3 149.87 | 2 892.99 |
| Fcr/kN | 51 204.5 | 51 072.9 | 50 125.7 | 50 457.2 |
迭代次数 Number of iterations | — | 23 | 2 | 18 |
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