Article(id=1281204290907779915, tenantId=1146029695717560320, journalId=1240685776644648972, issueId=1281203336514867310, articleNumber=null, orderNo=null, doi=10.3969/j.issn.1007-7294.2026.04.011, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1743004800000, receivedDateStr=2025-03-27, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1783392506577, onlineDateStr=2026-07-07, pubDate=1776182400000, pubDateStr=2026-04-15, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1783392506577, onlineIssueDateStr=2026-07-07, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1783392506577, creator=13041195026, updateTime=1783392506577, updator=13041195026, issue=Issue{id=1281203336514867310, tenantId=1146029695717560320, journalId=1240685776644648972, year='2026', volume='30', issue='4', pageStart='507', pageEnd='658', issueExtLink='null', onlineDate='null', pubDate='1776182400000', pubDateStr='2026-04-15', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1783392279032, creator='13041195026', updateTime=1783395286077, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1281215949713945277, tenantId=1146029695717560320, journalId=1240685776644648972, issueId=1281203336514867310, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1281215949713945278, tenantId=1146029695717560320, journalId=1240685776644648972, issueId=1281203336514867310, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=627, endPage=637, ext={EN=ArticleExt(id=1281204291113300812, articleId=1281204290907779915, tenantId=1146029695717560320, journalId=1240685776644648972, language=EN, title=Influence of shape defects on the ultimate load and failure mode of titanium alloy pressure-resistant thin-shell structures, columnId=1242129251223274417, journalTitle=Journal of Ship Mechanics, columnName=Structural Mechanics, runingTitle=null, highlight=null, articleAbstract=
This paper investigates the influence of initial geometric defects on the ultimate load capacity and failure mode of thin-walled titanium alloy ring-ribbed cylindrical shells. The study combines key geometric parameters, including the radius-to-thickness ratio (R/t), length-to-radius ratio (L/R), and rib spacing (u), to conduct structural design calculations and analyze failure modes, supported by experimental verification. A welded model (with initial defects) and a precision-machined model (without defects) were designed and fabricated. Theoretical analysis and numerical simulations were performed to obtain the structural stress distribution and critical buckling pressure at critical locations on both models. Subsequently, hydrostatic external pressure tests were conducted to evaluate the structural strength and ultimate load capacity, revealing the stress distribution characteristics, failure pressure, and failure modes of each model. By comparing the theoretical, numerical, and experimental results, the impact of initial shape defects on structural performance was assessed. This comparison provides a robust basis for the design, calculation, and evaluation of thin-walled titanium alloy ring-ribbed cylindrical shell structures.
, authors=Xiao-zhong XIE
1, 2, 3, Zhen HU
1, 2, 3, Ru-xu HUANG
1, 2, 3, Yuan GAO
1, 2, 3, Cheng LIU
1, 2, 3, Yan-qing LI
1, 2, 3, authorsList=Xiao-zhong XIE, Zhen HU, Ru-xu HUANG, Yuan GAO, Cheng LIU, Yan-qing LI, authorCompany=null, correspAuthors=Xiao-zhong XIE, authorNote=null, correspAuthorsNote=null, copyrightStatement=Copyright ©2026 Journal of Ship Mechanics. All rights reserved., copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1281204322771906630, articleId=1281204290907779915, tenantId=1146029695717560320, journalId=1240685776644648972, language=CN, title=形状缺陷对钛合金耐压薄壳结构极限承载及失效模式的影响研究, columnId=1241023038926410098, journalTitle=船舶力学, columnName=结构力学, runingTitle=null, highlight=null, articleAbstract=
本文针对初始形状缺陷对薄壁钛合金环肋圆柱壳结构极限承载及失效模式的影响问题,结合径厚比、长径比和肋距等参数,开展了结构设计计算、极限承载及失效模式研究,并进行了试验验证。设计并加工含初始形状缺陷的焊接模型和无形状缺陷的精车模型;通过理论公式推导与数值仿真,分别获得两个模型典型部位的结构应力和模型临界失稳压力;进而开展了模型静水外压试验,考核其结构强度与极限承载能力,得到两个模型应力分布特征、破坏压力及破坏形态。通过对比理论、数值和试验结果,系统分析了初始形状缺陷对结构强度和极限承载能力的影响,为薄壁钛合金环肋圆柱壳结构的设计、计算和评估提供研究依据。
, authors=谢晓忠
1, 2, 3, 胡震
1, 2, 3, 黄如旭
1, 2, 3, 高原
1, 2, 3, 刘成
1, 2, 3, 李艳青
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, copyrightStatement=版权所有©《船舶力学》编辑部2026, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=npOium7tym/q0uJrhfpzHg==, magXml=ygLBeFtlmcXMIyCw5gwSDA==, pdfUrl=null, pdf=faiYWASGpGVih1Dlgi2zOw==, pdfFileSize=1438480, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=T4iInnZpTVl69VhCWcslfg==, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=nhjYmz1M8QAI1+b84j01bA==, mapNumber=null, fund=null)}, authors=[Author(id=1281204323229085777, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=xiaozhongxie@163.com, emailSecond=null, emailThird=null, correspondingAuthor=1, authorType=1, ext={EN=AuthorExt(id=1281204323312971861, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, authorId=1281204323229085777, language=EN, stringName=Xiao-zhong XIE, firstName=Xiao-zhong, middleName=null, lastName=XIE, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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3.Taihu Laboratory of Deepsea Technological Science, Wuxi 214082, China), AuthorCompanyExt(id=1281204323166171215, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, companyId=1281204323149393997, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3.深海技术科学太湖实验室,江苏 无锡 214082)])], figs=[ArticleFig(id=1281204326924267652, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=EN, label=Fig.1, caption=
Mechanical model of ring-ribbed cylindrical shell, figureFileSmall=66MHUzArf4q6sqVn3YFzVQ==, figureFileBig=T4iInnZpTVl69VhCWcslfg==, tableContent=null), ArticleFig(id=1281204326987182213, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=CN, label=图1, caption=
环肋圆柱壳力学模型, figureFileSmall=66MHUzArf4q6sqVn3YFzVQ==, figureFileBig=T4iInnZpTVl69VhCWcslfg==, tableContent=null), ArticleFig(id=1281204327175925894, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=EN, label=Fig.2, caption=
Welded model (including tooling), figureFileSmall=nSac2zZtjrWbIDDkE7xGhg==, figureFileBig=1Crp/yPAmxZwotwxk/oHWA==, tableContent=null), ArticleFig(id=1281204327243034759, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=CN, label=图2, caption=
焊接模型(含工装)结构型式, figureFileSmall=nSac2zZtjrWbIDDkE7xGhg==, figureFileBig=1Crp/yPAmxZwotwxk/oHWA==, tableContent=null), ArticleFig(id=1281204327301755016, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=EN, label=Fig.3, caption=
Machined model (including tooling), figureFileSmall=At2jufpMZpdd7eo5UoGW0A==, figureFileBig=PBotV8vy09BZsBNVIMcHqg==, tableContent=null), ArticleFig(id=1281204327360475273, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=CN, label=图3, caption=
精车模型(含工装)结构型式, figureFileSmall=At2jufpMZpdd7eo5UoGW0A==, figureFileBig=PBotV8vy09BZsBNVIMcHqg==, tableContent=null), ArticleFig(id=1281204327444361354, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=EN, label=Fig.4, caption=
Physical object of welded model, figureFileSmall=ZYmlgpG9gA2el2Lpx3+iwA==, figureFileBig=eG4lcMpahs0r9zTTexH+Ew==, tableContent=null), ArticleFig(id=1281204327515664523, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=CN, label=图4, caption=
焊接模型实物, figureFileSmall=ZYmlgpG9gA2el2Lpx3+iwA==, figureFileBig=eG4lcMpahs0r9zTTexH+Ew==, tableContent=null), ArticleFig(id=1281204327578579084, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=EN, label=Fig.5, caption=
Physical object of machined model, figureFileSmall=BNgIecQLqvD12+r15TT8mA==, figureFileBig=rgRdJXGlOesnOG/MQYg2RA==, tableContent=null), ArticleFig(id=1281204327654076557, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=CN, label=图5, caption=
精车模型实物, figureFileSmall=BNgIecQLqvD12+r15TT8mA==, figureFileBig=rgRdJXGlOesnOG/MQYg2RA==, tableContent=null), ArticleFig(id=1281204327712796814, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=EN, label=Fig.6, caption=
Shape defects of welded model, figureFileSmall=kn0Joo92qxT9j/t10fjvAQ==, figureFileBig=GkmL2Owz4CBbrrCXg85WkQ==, tableContent=null), ArticleFig(id=1281204327771517071, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=CN, label=图6, caption=
焊接模型形状缺陷分布, figureFileSmall=kn0Joo92qxT9j/t10fjvAQ==, figureFileBig=GkmL2Owz4CBbrrCXg85WkQ==, tableContent=null), ArticleFig(id=1281204327826043024, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=EN, label=Fig.7, caption=
Thickness of welded model, figureFileSmall=3Fzty+UaEQHRVSuYD6CSwA==, figureFileBig=RAJykuzFu0wqbV6OhVqtCQ==, tableContent=null), ArticleFig(id=1281204327893151889, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=CN, label=图7, caption=
焊接模型壳板厚度分布, figureFileSmall=3Fzty+UaEQHRVSuYD6CSwA==, figureFileBig=RAJykuzFu0wqbV6OhVqtCQ==, tableContent=null), ArticleFig(id=1281204327977037970, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=EN, label=Fig.8, caption=
Half profile of welded model, figureFileSmall=5PmDUM/LhtBL/IqPiWdUeg==, figureFileBig=y4vUmshd3qDcpb+RNz7i7A==, tableContent=null), ArticleFig(id=1281204328035758227, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=CN, label=图8, caption=
焊接模型半剖图, figureFileSmall=5PmDUM/LhtBL/IqPiWdUeg==, figureFileBig=y4vUmshd3qDcpb+RNz7i7A==, tableContent=null), ArticleFig(id=1281204328094478484, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=EN, label=Fig.9, caption=
Half profile of machined model, figureFileSmall=e1RWEUfrBq/5xMRNv8zDPQ==, figureFileBig=gMePNztxm5XaLKC4ANjB6w==, tableContent=null), ArticleFig(id=1281204328161587349, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=CN, label=图9, caption=
精车模型半剖图, figureFileSmall=e1RWEUfrBq/5xMRNv8zDPQ==, figureFileBig=gMePNztxm5XaLKC4ANjB6w==, tableContent=null), ArticleFig(id=1281204328241279126, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=EN, label=Fig.10, caption=
Stress nephogram of welded model, figureFileSmall=y+sRdqO3OzRyDi1vbgUkKQ==, figureFileBig=J+U92vNGCgBYAmuDwW7Xyw==, tableContent=null), ArticleFig(id=1281204328295805079, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=CN, label=图10, caption=
焊接模型应力云图, figureFileSmall=y+sRdqO3OzRyDi1vbgUkKQ==, figureFileBig=J+U92vNGCgBYAmuDwW7Xyw==, tableContent=null), ArticleFig(id=1281204328354525336, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=EN, label=Fig.11, caption=
Stress nephogram of machined model, figureFileSmall=/tEChOn7wUkuEgVqCJrOrg==, figureFileBig=2+vh0P/CMudo6gacRC63Uw==, tableContent=null), ArticleFig(id=1281204328417439897, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=CN, label=图11, caption=
精车模型应力云图, figureFileSmall=/tEChOn7wUkuEgVqCJrOrg==, figureFileBig=2+vh0P/CMudo6gacRC63Uw==, tableContent=null), ArticleFig(id=1281204328484548762, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=EN, label=Fig.12, caption=
The pressure-deformation curve and failure modes of the model, figureFileSmall=JgEJ6ttg/YfJc+CZ7W/cWw==, figureFileBig=lEUn5ltSnl8sZFzm6KXwEA==, tableContent=null), ArticleFig(id=1281204328543269019, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=CN, label=图12, caption=
模型压力−变形曲线及失效模式, figureFileSmall=JgEJ6ttg/YfJc+CZ7W/cWw==, figureFileBig=lEUn5ltSnl8sZFzm6KXwEA==, tableContent=null), ArticleFig(id=1281204328610377884, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=EN, label=Fig.13, caption=
Schematic of the test system, figureFileSmall=eks9RmUoKDgeycFplXU+0A==, figureFileBig=XE5ClfkVvYIfNc87REo1sA==, tableContent=null), ArticleFig(id=1281204328677486749, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=CN, label=图13, caption=
试验系统示意图, figureFileSmall=eks9RmUoKDgeycFplXU+0A==, figureFileBig=XE5ClfkVvYIfNc87REo1sA==, tableContent=null), ArticleFig(id=1281204330271322270, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=EN, label=Fig.14, caption=
Strain measuring point distribution of welded model (left)/machined model (right), figureFileSmall=GgqAaNBfVllSVbdHWmQdgQ==, figureFileBig=jlAaLArHyUA9jkFbZeMddw==, tableContent=null), ArticleFig(id=1281204330363596959, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=CN, label=图14, caption=
焊接模型(左)/精车模型(右)应变测点分布图, figureFileSmall=GgqAaNBfVllSVbdHWmQdgQ==, figureFileBig=jlAaLArHyUA9jkFbZeMddw==, tableContent=null), ArticleFig(id=1281204330476843168, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=EN, label=Fig.15, caption=
Loading curve of strength test, figureFileSmall=lzcdIV+lmp+zE+CaX8LU0g==, figureFileBig=RFQzPSWzXRC1mw9Wr6odCA==, tableContent=null), ArticleFig(id=1281204330543952033, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=CN, label=图15, caption=
强度试验加载曲线, figureFileSmall=lzcdIV+lmp+zE+CaX8LU0g==, figureFileBig=RFQzPSWzXRC1mw9Wr6odCA==, tableContent=null), ArticleFig(id=1281204330611060898, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=EN, label=Fig.16, caption=
The pressure-strain curve of the welded model in strength test, figureFileSmall=ML2MvMEeBSmtPP5Yd7g5zg==, figureFileBig=FtCXQ1krcpH0VhX0t73MCA==, tableContent=null), ArticleFig(id=1281204330694946979, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=CN, label=图16, caption=
强度试验焊接模型压力−应变曲线, figureFileSmall=ML2MvMEeBSmtPP5Yd7g5zg==, figureFileBig=FtCXQ1krcpH0VhX0t73MCA==, tableContent=null), ArticleFig(id=1281204330783027364, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=EN, label=Fig.17, caption=
The pressure-strain curve of the machined model in strength test, figureFileSmall=GRJH6I3joQ032BU8e7ymrw==, figureFileBig=iF7OKfFnz9JrvZpWkRkg8Q==, tableContent=null), ArticleFig(id=1281204330837553317, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=CN, label=图17, caption=
强度试验精车模型压力−应变曲线, figureFileSmall=GRJH6I3joQ032BU8e7ymrw==, figureFileBig=iF7OKfFnz9JrvZpWkRkg8Q==, tableContent=null), ArticleFig(id=1281204330913050790, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=EN, label=Fig.18, caption=
Comparison of midplane circumferential stress, figureFileSmall=J9+un35rLu/+CxgiewNanA==, figureFileBig=nOWv18dlPHKQ14I44rc2WA==, tableContent=null), ArticleFig(id=1281204330967576743, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=CN, label=图18, caption=
中面周向应力对比, figureFileSmall=J9+un35rLu/+CxgiewNanA==, figureFileBig=nOWv18dlPHKQ14I44rc2WA==, tableContent=null), ArticleFig(id=1281204331030491304, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=EN, label=Fig.19, caption=
Comparison of longitudinal stress on inner surface, figureFileSmall=YsbdBhizYkrBa0Pq98o0qg==, figureFileBig=23rkAQo4dY2odKYtW7u3QA==, tableContent=null), ArticleFig(id=1281204331097600169, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=CN, label=图19, caption=
内表面纵向应力对比, figureFileSmall=YsbdBhizYkrBa0Pq98o0qg==, figureFileBig=23rkAQo4dY2odKYtW7u3QA==, tableContent=null), ArticleFig(id=1281204331160514730, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=EN, label=Fig.20, caption=
The pressure-strain curve of the welded model in destruction test, figureFileSmall=c+w8XYBkDlHdUzNqFvipKA==, figureFileBig=CTv5ihyKg3OvVYNZYgP1DA==, tableContent=null), ArticleFig(id=1281204331240206507, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=CN, label=图20, caption=
破坏试验焊接模型测点压力−应变曲线, figureFileSmall=c+w8XYBkDlHdUzNqFvipKA==, figureFileBig=CTv5ihyKg3OvVYNZYgP1DA==, tableContent=null), ArticleFig(id=1281204331298926764, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=EN, label=Fig.21, caption=
The pressure-strain curve of the machined model in destruction test, figureFileSmall=3SXW48oyHMxILJkpD8/PhQ==, figureFileBig=XfyVH60zDsCFn/vt+FNLzQ==, tableContent=null), ArticleFig(id=1281204331361841325, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=CN, label=图21, caption=
破坏试验精车模型测点压力−应变曲线, figureFileSmall=3SXW48oyHMxILJkpD8/PhQ==, figureFileBig=XfyVH60zDsCFn/vt+FNLzQ==, tableContent=null), ArticleFig(id=1281204331428950190, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=EN, label=Fig.22, caption=
Failure pattern of welded model, figureFileSmall=/vxTMqJZLMasS5H4yYEW8g==, figureFileBig=Fx4VjmedkIVorH+qY0NG0g==, tableContent=null), ArticleFig(id=1281204331491864751, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=CN, label=图22, caption=
焊接模型破坏形态, figureFileSmall=/vxTMqJZLMasS5H4yYEW8g==, figureFileBig=Fx4VjmedkIVorH+qY0NG0g==, tableContent=null), ArticleFig(id=1281204331558973616, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=EN, label=Fig.23, caption=
Failure pattern of machined model, figureFileSmall=ASrpfWrA8HJmmrszkD5A8w==, figureFileBig=HTbvQqY0RoU9Up3rLRSUSw==, tableContent=null), ArticleFig(id=1281204331617693873, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=CN, label=图23, caption=
精车模型破坏形态, figureFileSmall=ASrpfWrA8HJmmrszkD5A8w==, figureFileBig=HTbvQqY0RoU9Up3rLRSUSw==, tableContent=null), ArticleFig(id=1281204331714162866, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=EN, label=Fig.24, caption=
The eigenvalue buckling mode of the machined model based on the design plate thickness, figureFileSmall=WJBhbTehV25hkvxk2Wjd/Q==, figureFileBig=cmM+DH7MmrZHpWPuDuLaZg==, tableContent=null), ArticleFig(id=1281204331781271731, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=CN, label=图24, caption=
基于设计板厚的精车模型特征值屈曲模态, figureFileSmall=WJBhbTehV25hkvxk2Wjd/Q==, figureFileBig=cmM+DH7MmrZHpWPuDuLaZg==, tableContent=null), ArticleFig(id=1281204331907100852, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=EN, label=Tab.1, caption=
Results of theoretical calculation
, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 焊接模型 | 精车模型 | 控制标准 |
|---|
| 跨中壳板中面周向应力$ \sigma _{2}^{0} $ | 0.41$ {\sigma }_{\text{s}} $ | 0.39$ {\sigma }_{\text{s}} $ | 0.85$ {\sigma }_{\text{s}} $ |
| 肋骨跨端壳板内表面纵向应力$ {\sigma }_{1} $ | 0.39$ {\sigma }_{\text{s}} $ | 0.37$ {\sigma }_{\text{s}} $ | 1.15$ {\sigma }_{\text{s}} $ |
| 肋骨应力$ {\sigma }_{\text{f}} $ | 0.24$ {\sigma }_{\text{s}} $ | 0.24$ {\sigma }_{\text{s}} $ | 0.60$ {\sigma }_{\text{s}} $ |
| 肋间壳板失稳临界压力$ {P}_{\text{cr}} $ | 1.23$ {P}_{\text{c}} $ | 1.75$ {P}_{\text{c}} $ | 1.0$ {P}_{\text{c}} $ |
| 舱段总体失稳临界压力$ {{P}^{\prime}}_{\text{cr}}^{} $ | 1.67$ {P}_{\text{c}} $ | 2.02$ {P}_{\text{c}} $ | 1.2$ {P}_{\text{c}} $ |
), ArticleFig(id=1281204331986792629, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=CN, label=表1, caption=
模型理论计算结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 焊接模型 | 精车模型 | 控制标准 |
|---|
| 跨中壳板中面周向应力$ \sigma _{2}^{0} $ | 0.41$ {\sigma }_{\text{s}} $ | 0.39$ {\sigma }_{\text{s}} $ | 0.85$ {\sigma }_{\text{s}} $ |
| 肋骨跨端壳板内表面纵向应力$ {\sigma }_{1} $ | 0.39$ {\sigma }_{\text{s}} $ | 0.37$ {\sigma }_{\text{s}} $ | 1.15$ {\sigma }_{\text{s}} $ |
| 肋骨应力$ {\sigma }_{\text{f}} $ | 0.24$ {\sigma }_{\text{s}} $ | 0.24$ {\sigma }_{\text{s}} $ | 0.60$ {\sigma }_{\text{s}} $ |
| 肋间壳板失稳临界压力$ {P}_{\text{cr}} $ | 1.23$ {P}_{\text{c}} $ | 1.75$ {P}_{\text{c}} $ | 1.0$ {P}_{\text{c}} $ |
| 舱段总体失稳临界压力$ {{P}^{\prime}}_{\text{cr}}^{} $ | 1.67$ {P}_{\text{c}} $ | 2.02$ {P}_{\text{c}} $ | 1.2$ {P}_{\text{c}} $ |
), ArticleFig(id=1281204332053901494, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=EN, label=Tab.2, caption=
The numerical calculation results of the typical stress
, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 焊接模型 | 精车模型 | 控制标准 |
|---|
| 跨中壳板中面周向应力$ \sigma _{2}^{0} $ | 0.41$ {\sigma }_{\text{s}} $ | 0.39$ {\sigma }_{\text{s}} $ | 0.85$ {\sigma }_{\text{s}} $ |
| 肋骨跨端壳板内表面纵向应力$ {\sigma }_{1} $ | 0.35$ {\sigma }_{\text{s}} $ | 0.31$ {\sigma }_{\text{s}} $ | 1.15$ {\sigma }_{\text{s}} $ |
| 肋骨应力$ {\sigma }_{\text{f}} $ | 0.26$ {\sigma }_{\text{s}} $ | 0.26$ {\sigma }_{\text{s}} $ | 0.60$ {\sigma }_{\text{s}} $ |
), ArticleFig(id=1281204332301365431, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=CN, label=表2, caption=
典型应力数值计算结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 焊接模型 | 精车模型 | 控制标准 |
|---|
| 跨中壳板中面周向应力$ \sigma _{2}^{0} $ | 0.41$ {\sigma }_{\text{s}} $ | 0.39$ {\sigma }_{\text{s}} $ | 0.85$ {\sigma }_{\text{s}} $ |
| 肋骨跨端壳板内表面纵向应力$ {\sigma }_{1} $ | 0.35$ {\sigma }_{\text{s}} $ | 0.31$ {\sigma }_{\text{s}} $ | 1.15$ {\sigma }_{\text{s}} $ |
| 肋骨应力$ {\sigma }_{\text{f}} $ | 0.26$ {\sigma }_{\text{s}} $ | 0.26$ {\sigma }_{\text{s}} $ | 0.60$ {\sigma }_{\text{s}} $ |
), ArticleFig(id=1281204332372668600, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=EN, label=Tab.3, caption=
The test results of typical structural stress
, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 焊接 模型 | 精车 模型 | 控制 标准 |
|---|
| 跨中壳板中面周向应力$ \sigma _{2}^{0} $ | 0.38$ {\sigma }_{\text{s}} $ | 0.39$ {\sigma }_{\text{s}} $ | 0.85$ {\sigma }_{\text{s}} $ |
肋骨跨端壳板内表面 纵向应力$ {\sigma }_{1} $ | 0.35$ {\sigma }_{\text{s}} $ | 0.33$ {\sigma }_{\text{s}} $ | 1.15$ {\sigma }_{\text{s}} $ |
| 肋骨应力$ {\sigma }_{\text{f}} $ | 0.25$ {\sigma }_{\text{s}} $ | 0.23$ {\sigma }_{\text{s}} $ | 0.60$ {\sigma }_{\text{s}} $ |
), ArticleFig(id=1281204332460748985, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=CN, label=表3, caption=
典型结构应力试验结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 焊接 模型 | 精车 模型 | 控制 标准 |
|---|
| 跨中壳板中面周向应力$ \sigma _{2}^{0} $ | 0.38$ {\sigma }_{\text{s}} $ | 0.39$ {\sigma }_{\text{s}} $ | 0.85$ {\sigma }_{\text{s}} $ |
肋骨跨端壳板内表面 纵向应力$ {\sigma }_{1} $ | 0.35$ {\sigma }_{\text{s}} $ | 0.33$ {\sigma }_{\text{s}} $ | 1.15$ {\sigma }_{\text{s}} $ |
| 肋骨应力$ {\sigma }_{\text{f}} $ | 0.25$ {\sigma }_{\text{s}} $ | 0.23$ {\sigma }_{\text{s}} $ | 0.60$ {\sigma }_{\text{s}} $ |
), ArticleFig(id=1281204332519469242, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=EN, label=Tab.4, caption=
Comparison of the models' ultimate bearing capacity
, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 焊接模型 | | 精车模型 |
|---|
| 理论 | 数值 | 试验 | | 理论 | 数值 | 试验 |
|---|
| 肋间壳板失稳临界压力$ {P}_{\text{cr}} $ | 1.23$ {P}_{\text{c}} $ | − | − | | 1.75$ {P}_{\text{c}} $ | 2.22$ {P}_{\text{c}} $ | 2.27$ {P}_{\text{c}} $ |
| 舱段总体失稳临界压力$ {{P}^{\prime}}_{\text{cr}}^{} $ | 1.67$ {P}_{\text{c}} $ | 1.68$ {P}_{\text{c}} $ | 1.94$ {P}_{\text{c}} $ | | 2.02$ {P}_{\text{c}} $ | 2.03$ {P}_{\text{c}} $/2.26$ {P}_{\text{c}} $ |
), ArticleFig(id=1281204332582383803, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281204290907779915, language=CN, label=表4, caption=
模型极限承载能力结果对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 焊接模型 | | 精车模型 |
|---|
| 理论 | 数值 | 试验 | | 理论 | 数值 | 试验 |
|---|
| 肋间壳板失稳临界压力$ {P}_{\text{cr}} $ | 1.23$ {P}_{\text{c}} $ | − | − | | 1.75$ {P}_{\text{c}} $ | 2.22$ {P}_{\text{c}} $ | 2.27$ {P}_{\text{c}} $ |
| 舱段总体失稳临界压力$ {{P}^{\prime}}_{\text{cr}}^{} $ | 1.67$ {P}_{\text{c}} $ | 1.68$ {P}_{\text{c}} $ | 1.94$ {P}_{\text{c}} $ | | 2.02$ {P}_{\text{c}} $ | 2.03$ {P}_{\text{c}} $/2.26$ {P}_{\text{c}} $ |
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