Article(id=1320423102312469146, tenantId=1146029695717560320, journalId=1319355204128309394, issueId=1320423063842304050, articleNumber=null, orderNo=null, doi=10.3969/j.issn.1001-4837.2026.03.001, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1767456000000, receivedDateStr=2026-01-04, revisedDate=1770912000000, revisedDateStr=2026-02-13, acceptedDate=null, acceptedDateStr=null, onlineDate=1792742999865, onlineDateStr=2026-10-23, pubDate=1774800000000, pubDateStr=2026-03-30, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792742999865, onlineIssueDateStr=2026-10-23, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792742999865, creator=13701087609, updateTime=1792742999865, updator=13701087609, issue=Issue{id=1320423063842304050, tenantId=1146029695717560320, journalId=1319355204128309394, year='2026', volume='43', issue='3', pageStart='1', pageEnd='86', issueExtLink='null', onlineDate='null', pubDate='1774800000000', pubDateStr='2026-03-30', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=1, specialIssue=null, createTime=1792742990694, creator='13701087609', updateTime=1792745289363, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1320432705251165019, tenantId=1146029695717560320, journalId=1319355204128309394, issueId=1320423063842304050, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1320432705251165020, tenantId=1146029695717560320, journalId=1319355204128309394, issueId=1320423063842304050, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=1, endPage=14, ext={EN=ArticleExt(id=1320423102719316635, articleId=1320423102312469146, tenantId=1146029695717560320, journalId=1319355204128309394, language=EN, title=Comparative study on compressive buckling performance and overall formability of ellipsoidal heads with different internal ribs, columnId=1320422992476226524, journalTitle=Pressure Vessel Technology, columnName=Experimental Researches, runingTitle=null, highlight=null, articleAbstract=
To meet the lightweight requirements of deep‑sea vehicles and address the issues of high residual stress and poor reliability associated with traditional welded internal ribbed heads,a new configuration of spiral‑ribbed ellipsoidal head suitable for integrated manufacturing is proposed.Through axial compression tests and finite element simulations,the compressive and buckling performance of four types of 6061-T6 aluminum alloy heads,namely without ribs,with transverse ribs,with longitudinal ribs,and with spiral ribs,was systematically compared.The overall formability was verified by spinning simulation and trial production.The results show that the structure with longitudinal internal ribs exhibits the best mechanical performance,with its ultimate compressive strength and critical buckling pressure increased by 8.7% and 5%,respectively,compared to the structure without ribs.The structure with spiral internal ribs,while maintaining good mechanical performance,can achieve overall forming with non‑deformed internal ribs and high filling quality by means of the spinning process.In contrast,structures with transverse internal ribs and longitudinal internal ribs are prone to forming defects.The structure with longitudinal internal ribs has the most outstanding load‑bearing capacity,while the structure with spiral internal ribs has a significant advantage in integrated forming,balancing mechanical performance and forming feasibility.This study provides new ideas for high‑performance design and integrated manufacturing of pressure components for deep‑sea equipment.
, authors=Guoqi YU
1, 2, Rui LI
1, 2, Tao ZHAO
3, Jiuzhi DONG
1, 2, Yunjun CHEN
1, 2, Hongrui ZHANG
4, authorsList=Guoqi YU, Rui LI, Tao ZHAO, Jiuzhi DONG, Yunjun CHEN, Hongrui ZHANG, authorCompany=null, correspAuthors=Rui LI, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, 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=1320423110176789194, articleId=1320423102312469146, tenantId=1146029695717560320, journalId=1319355204128309394, language=CN, title=不同内筋椭球封头抗压屈曲性能及整体成形对比研究, columnId=1320422992698524638, journalTitle=压力容器, columnName=试验研究, runingTitle=null, highlight=null, articleAbstract=
为满足深海运载装备轻量化需求,针对传统焊接内筋封头残余应力高、可靠性差等问题,提出一种适用于一体化制造的螺旋筋椭球封头新构型。通过轴向压缩试验与有限元模拟,系统对比了无筋、横筋、纵筋及螺旋筋共4种6061-T6铝合金封头的抗压及屈曲性能,并借助旋压仿真与试制验证其整体成形性。结果表明,带纵向内筋结构力学性能最优,其极限抗压强度、屈曲临界压力较无筋结构分别提升8.7%,5%;带螺旋内筋结构在保持优良力学性能的同时,借助旋压成形工艺可实现内筋无畸变、高填充质量的整体成形,而带横向内筋与带纵向内筋结构易出现成形缺陷;带纵向内筋结构的承载能力最为突出,而带螺旋内筋结构在一体化成形方面具有显著优势,其兼顾力学性能与成形可行性。研究为深海装备耐压部件的高性能设计与一体化制造提供新思路。
, authors=余国旗
1, 2, 李锐
1, 2, 赵淘
3, 董九志
1, 2, 陈云军
1, 2, 张洪瑞
4, authorsList=余国旗, 李锐, 赵淘, 董九志, 陈云军, 张洪瑞, authorCompany=null, correspAuthors=李锐, authorNote=
余国旗(1999),男,研究方向为金属塑性成形及仿真,通信地址:300387天津市西青区宾水西道399号天津工业大学机械工程学院,E-mail:ygqopp@126.com。
, correspAuthorsNote=
李锐(1989),男,讲师,研究方向为压力容器结构设计及金属塑性成形及仿真,通信地址:300387天津市西青区宾水西道399号天津工业大学机械工程学院,E-mail:
lirui_cheer@163.com。
, copyrightStatement=
作者向本刊所投稿件一经本刊录用,则该论文的复制权、发行权、信息网络传播权、翻译权、汇编权等权利视为自动转让给本刊。本刊为国内各主要数据库收录期刊,本刊所发表的稿件将同时通过因特网进行网络出版或提供信息服务(包括印刷版、光盘版和网络版等各种使用方式)。, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=V6WTg5cIZLV7XMuPP3WvYg==, magXml=ITPrFK3ko1ZbbSTk5NIeUw==, pdfUrl=null, pdf=hTyIL0Z6OlaXJUEdiEhuAw==, pdfFileSize=11397548, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=4J1avFqf1YJmUa719q0YDQ==, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=/uDieAOSvJhu5QoKOl6jeA==, mapNumber=null, fund=null)}, authors=[Author(id=1320423111024038616, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423102312469146, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=ygqopp@126.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1320423111250531035, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423102312469146, authorId=1320423111024038616, language=EN, stringName=Guoqi YU, firstName=Guoqi, middleName=null, lastName=YU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, address=
1School of Mechanical Engineering,Tiangong University,Tianjin 300387,China
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1天津工业大学 机械工程学院,天津 300387
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余国旗(1999),男,研究方向为金属塑性成形及仿真,通信地址:300387天津市西青区宾水西道399号天津工业大学机械工程学院,E-mail:ygqopp@126.com。
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余国旗(1999),男,研究方向为金属塑性成形及仿真,通信地址:300387天津市西青区宾水西道399号天津工业大学机械工程学院,E-mail:ygqopp@126.com。
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1School of Mechanical Engineering,Tiangong University,Tianjin 300387,China
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1天津工业大学 机械工程学院,天津 300387
2天津工业大学 天津市现代机电装备技术重点试验室,天津 300387, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1320423110583636683, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423102312469146, xref=1, ext=[AuthorCompanyExt(id=1320423110596219596, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423102312469146, companyId=1320423110583636683, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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2天津工业大学 天津市现代机电装备技术重点试验室,天津 300387)])]), Author(id=1320423113301545700, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423102312469146, orderNo=2, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1320423113398014694, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423102312469146, authorId=1320423113301545700, language=EN, stringName=Tao ZHAO, firstName=Tao, middleName=null, lastName=ZHAO, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1School of Mechanical Engineering,Tiangong University,Tianjin 300387,China
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1天津工业大学 机械工程学院,天津 300387
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1School of Mechanical Engineering,Tiangong University,Tianjin 300387,China
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1天津工业大学 机械工程学院,天津 300387
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Schematic of unmanned deep‑sea submersible, figureFileSmall=7fkz7bqZgzEWPsgb+NlGSg==, figureFileBig=4J1avFqf1YJmUa719q0YDQ==, tableContent=null), ArticleFig(id=1320423115381920516, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423102312469146, language=CN, label=图1, caption=
无人深海潜水器示意, figureFileSmall=7fkz7bqZgzEWPsgb+NlGSg==, figureFileBig=4J1avFqf1YJmUa719q0YDQ==, tableContent=null), ArticleFig(id=1320423115591635717, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423102312469146, language=EN, label=Fig.2, caption=
External shape and internal structure of ellipsoidal head, figureFileSmall=fi5iRV7mT/goi9PJMPRPJw==, figureFileBig=VcORqgHudgp4QVrjyFy9Qg==, tableContent=null), ArticleFig(id=1320423115667133190, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423102312469146, language=CN, label=图2, caption=
椭球封头外形及内部结构, figureFileSmall=fi5iRV7mT/goi9PJMPRPJw==, figureFileBig=VcORqgHudgp4QVrjyFy9Qg==, tableContent=null), ArticleFig(id=1320423115746824967, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423102312469146, language=EN, label=Fig.3, caption=
Dimensions of 6061-T6 aluminum alloy uniaxialtensile specimen and engineering stress-strain curve, figureFileSmall=wA3bXHQuwBSmtQniNxArpA==, figureFileBig=L3CFivUStCJ7tfUIJ6a/JQ==, tableContent=null), ArticleFig(id=1320423115805545224, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423102312469146, language=CN, label=图3, caption=
6061-T6铝合金单轴拉伸试样尺寸及工程应力-应变曲线, figureFileSmall=wA3bXHQuwBSmtQniNxArpA==, figureFileBig=L3CFivUStCJ7tfUIJ6a/JQ==, tableContent=null), ArticleFig(id=1320423115872654089, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423102312469146, language=EN, label=Fig.4, caption=
Compression test equipment and site forellipsoidal head, figureFileSmall=9ocFTf+S0qFXq3QTib0hVQ==, figureFileBig=rPxch1iwWb4ldyiwuqGwzQ==, tableContent=null), ArticleFig(id=1320423115943957258, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423102312469146, language=CN, label=图4, caption=
椭球封头抗压试验设备及现场, figureFileSmall=9ocFTf+S0qFXq3QTib0hVQ==, figureFileBig=rPxch1iwWb4ldyiwuqGwzQ==, tableContent=null), ArticleFig(id=1320423115998483211, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423102312469146, language=EN, label=Fig.5, caption=
Physical photographs of ellipsoidal heads withdifferent internal ribs after compression test, figureFileSmall=uIUOpvdyz9u/XMT7cV2E3g==, figureFileBig=OVy5vhAdJZDFXl8dI6aibg==, tableContent=null), ArticleFig(id=1320423116069786380, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423102312469146, language=CN, label=图5, caption=
带不同内筋椭球封头抗压试验后实物图, figureFileSmall=uIUOpvdyz9u/XMT7cV2E3g==, figureFileBig=OVy5vhAdJZDFXl8dI6aibg==, tableContent=null), ArticleFig(id=1320423117747507981, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423102312469146, language=EN, label=Fig.6, caption=
Finite element model for compression analysis, figureFileSmall=vBFgMYF1egb6UZgvA5mDYA==, figureFileBig=WeDiNOG8nBjk9PrFIZSfrw==, tableContent=null), ArticleFig(id=1320423117835588366, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423102312469146, language=CN, label=图6, caption=
抗压分析有限元模型, figureFileSmall=vBFgMYF1egb6UZgvA5mDYA==, figureFileBig=WeDiNOG8nBjk9PrFIZSfrw==, tableContent=null), ArticleFig(id=1320423117915280143, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423102312469146, language=EN, label=Fig.7, caption=
Finite element model for buckling analysis of the head, figureFileSmall=YeYrfKLIrXT1ogGowvbMnQ==, figureFileBig=JZPKQhk8CdtjqlRHbyuKuA==, tableContent=null), ArticleFig(id=1320423117999166224, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423102312469146, language=CN, label=图7, caption=
封头屈曲分析有限元模型, figureFileSmall=YeYrfKLIrXT1ogGowvbMnQ==, figureFileBig=JZPKQhk8CdtjqlRHbyuKuA==, tableContent=null), ArticleFig(id=1320423118066275089, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423102312469146, language=EN, label=Fig.8, caption=
Mesh convergence analysis results for nonlinearbuckling analysis, figureFileSmall=Mm+ZZ9A+ucz711SJGTVgVQ==, figureFileBig=hrobu3ruor8141NmlMW0ug==, tableContent=null), ArticleFig(id=1320423118200492818, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423102312469146, language=CN, label=图8, caption=
非线性屈曲分析网格收敛性分析结果, figureFileSmall=Mm+ZZ9A+ucz711SJGTVgVQ==, figureFileBig=hrobu3ruor8141NmlMW0ug==, tableContent=null), ArticleFig(id=1320423118267601683, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423102312469146, language=EN, label=Fig.9, caption=
Compressive displacement-load curves of ellipsoidalheads with different internal ribs, figureFileSmall=YcozOgs/Pw2Q2rTyyXbeeA==, figureFileBig=VYwArmficFP3EDctaqNQOA==, tableContent=null), ArticleFig(id=1320423118338904852, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423102312469146, language=CN, label=图9, caption=
带不同内筋椭球封头抗压位移-载荷曲线, figureFileSmall=YcozOgs/Pw2Q2rTyyXbeeA==, figureFileBig=VYwArmficFP3EDctaqNQOA==, tableContent=null), ArticleFig(id=1320423118410208021, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423102312469146, language=EN, label=Fig.10, caption=
Stress distribution at the connection betweeninternal rib and head along the meridional direction, figureFileSmall=kbtvDUn946gpybhUtV/K4A==, figureFileBig=g5UhX9jOKtXoFVMkeiytqQ==, tableContent=null), ArticleFig(id=1320423118481511190, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423102312469146, language=CN, label=图10, caption=
沿母线方向内筋与封头连接处应力分布, figureFileSmall=kbtvDUn946gpybhUtV/K4A==, figureFileBig=g5UhX9jOKtXoFVMkeiytqQ==, tableContent=null), ArticleFig(id=1320423118661866263, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423102312469146, language=EN, label=Fig.11, caption=
Comparison of outer surface stress curves ofdifferent heads at the same cross‑section, figureFileSmall=859U/NA2QJiq4vNeublchQ==, figureFileBig=GniXvW2XBLHrPbzHCnmm1g==, tableContent=null), ArticleFig(id=1320423118737363736, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423102312469146, language=CN, label=图11, caption=
同一横截面下不同封头外表面应力曲线对比, figureFileSmall=859U/NA2QJiq4vNeublchQ==, figureFileBig=GniXvW2XBLHrPbzHCnmm1g==, tableContent=null), ArticleFig(id=1320423118821249817, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423102312469146, language=EN, label=Fig.12, caption=
Moment of inertia analysis of longitudinal rib cross‑section, figureFileSmall=4nNOAJIA4Xp9iEfBq0ZyJQ==, figureFileBig=eEXMUvI7RC/EDUMefqk57g==, tableContent=null), ArticleFig(id=1320423118917718810, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423102312469146, language=CN, label=图12, caption=
纵筋截面惯性矩分析, figureFileSmall=4nNOAJIA4Xp9iEfBq0ZyJQ==, figureFileBig=eEXMUvI7RC/EDUMefqk57g==, tableContent=null), ArticleFig(id=1320423119018382107, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423102312469146, language=EN, label=Fig.13, caption=
Equilibrium path curve for nonlinearbuckling analysis, figureFileSmall=M79NATcAhGmXKfax8XOYQQ==, figureFileBig=6IcQ7cil44oqaRJU9XAMTA==, tableContent=null), ArticleFig(id=1320423119119045404, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423102312469146, language=CN, label=图13, caption=
非线性屈曲分析平衡路径曲线, figureFileSmall=M79NATcAhGmXKfax8XOYQQ==, figureFileBig=6IcQ7cil44oqaRJU9XAMTA==, tableContent=null), ArticleFig(id=1320423119190348573, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423102312469146, language=EN, label=Fig.14, caption=
Variation curves of head stress and nonlinearcritical pressure, figureFileSmall=RqZqZXc7igRjZkd5ZYKsRQ==, figureFileBig=6XfxcC1AGY8VMA6Ezj+Vhg==, tableContent=null), ArticleFig(id=1320423119249068830, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423102312469146, language=CN, label=图14, caption=
封头应力与非线性临界压力变化曲线, figureFileSmall=RqZqZXc7igRjZkd5ZYKsRQ==, figureFileBig=6XfxcC1AGY8VMA6Ezj+Vhg==, tableContent=null), ArticleFig(id=1320423119311983391, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423102312469146, language=EN, label=Fig.15, caption=
Comparison of critical buckling pressures of fourtypes of ellipsoidal heads, figureFileSmall=Ggf1Xsjh1G+hWQtfLqEOnQ==, figureFileBig=x29NiBtIj1JdRcfCb28c8Q==, tableContent=null), ArticleFig(id=1320423119433618208, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423102312469146, language=CN, label=图15, caption=
4种类型椭球封头临界失稳压力对比, figureFileSmall=Ggf1Xsjh1G+hWQtfLqEOnQ==, figureFileBig=x29NiBtIj1JdRcfCb28c8Q==, tableContent=null), ArticleFig(id=1320423119517504289, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423102312469146, language=EN, label=Fig.16, caption=
Spinning forming results of ellipsoidal heads with different internal ribs, figureFileSmall=KMNneeBJtdWiOijTyYF9Dw==, figureFileBig=MqWTnkHKzhZCGo3Sw9UOfA==, tableContent=null), ArticleFig(id=1320423119605584674, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423102312469146, language=CN, label=图16, caption=
不同内筋椭球封头旋压成形结果, figureFileSmall=KMNneeBJtdWiOijTyYF9Dw==, figureFileBig=MqWTnkHKzhZCGo3Sw9UOfA==, tableContent=null), ArticleFig(id=1320423119685276451, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423102312469146, language=EN, label=Fig.17, caption=
Spinning forming and strain field distribution of ellipsoidal heads with internal ribs, figureFileSmall=W87AXT9leW716vj9A10gyw==, figureFileBig=WqLvxEFtfjQqiemJFyQwLw==, tableContent=null), ArticleFig(id=1320423119748191012, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423102312469146, language=CN, label=图17, caption=
带内筋椭球封头旋压成形及应变场分布, figureFileSmall=W87AXT9leW716vj9A10gyw==, figureFileBig=WqLvxEFtfjQqiemJFyQwLw==, tableContent=null), ArticleFig(id=1320423119857242917, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423102312469146, language=EN, label=Fig.18, caption=
Spinning forming test site for ellipsoidal head with spiral internal ribs, figureFileSmall=+iZYJK6WXpVyFS9d4ZXLLQ==, figureFileBig=6vzI2tGVjjr6wwYJYGWm8w==, tableContent=null), ArticleFig(id=1320423119928546086, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423102312469146, language=CN, label=图18, caption=
带螺旋内筋椭球封头旋压成形试验现场, figureFileSmall=+iZYJK6WXpVyFS9d4ZXLLQ==, figureFileBig=6vzI2tGVjjr6wwYJYGWm8w==, tableContent=null), ArticleFig(id=1320423119995654951, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423102312469146, language=EN, label=Fig.19, caption=
Comparison of head wall thickness betweenexperiment and finite element simulation, figureFileSmall=3kPU5GdFcsx8hcaxUbnjfw==, figureFileBig=8jbccxx3FJihSbyO1ZXJ0w==, tableContent=null), ArticleFig(id=1320423120087929640, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423102312469146, language=CN, label=图19, caption=
试验与有限元模拟封头壁厚对比, figureFileSmall=3kPU5GdFcsx8hcaxUbnjfw==, figureFileBig=8jbccxx3FJihSbyO1ZXJ0w==, tableContent=null), ArticleFig(id=1320423120163427113, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423102312469146, language=EN, label=Tab.1, caption=
Design parameters of ellipsoidal heads with different internal ribs
, figureFileSmall=null, figureFileBig=null, tableContent=
| 试样 | 壁厚/mm | 最大外径Da/mm | 高度hb/mm | 上端面直径Dc/mm | 质量/kg | 内筋关键参数 |
|---|
| 无筋 | 6 | 150 | 36.74 | 30 | 0.358 | — |
| 横筋 | 6 | 150 | 36.74 | 30 | 0.368 | 筋高3 mm,筋宽3 mm,纬线均布,3道。 |
| 纵筋 | 6 | 150 | 36.74 | 30 | 0.362 | 筋高3 mm,筋宽3 mm,经线均布,6道。 |
| 螺旋筋 | 6 | 150 | 36.74 | 30 | 0.369 | 螺旋角25°;筋高(2~4 mm,线性渐变);筋宽(4~8 mm,线性渐变);螺距(7 mm)。 |
), ArticleFig(id=1320423120272479018, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423102312469146, language=CN, label=表1, caption=
不同内筋椭球封头设计参数
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| 试样 | 壁厚/mm | 最大外径Da/mm | 高度hb/mm | 上端面直径Dc/mm | 质量/kg | 内筋关键参数 |
|---|
| 无筋 | 6 | 150 | 36.74 | 30 | 0.358 | — |
| 横筋 | 6 | 150 | 36.74 | 30 | 0.368 | 筋高3 mm,筋宽3 mm,纬线均布,3道。 |
| 纵筋 | 6 | 150 | 36.74 | 30 | 0.362 | 筋高3 mm,筋宽3 mm,经线均布,6道。 |
| 螺旋筋 | 6 | 150 | 36.74 | 30 | 0.369 | 螺旋角25°;筋高(2~4 mm,线性渐变);筋宽(4~8 mm,线性渐变);螺距(7 mm)。 |
), ArticleFig(id=1320423120339587883, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423102312469146, language=EN, label=Tab.2, caption=
Material parameters of 6061-T6 aluminum alloy
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 弹性模量/GPa | 泊松比 | 屈服强度/MPa | 抗拉强度/MPa | 断后伸长率/% | A | n |
|---|
| 数值 | 68.8 | 0.33 | 308 | 341 | 10.67 | 81.92 | 15.74 |
), ArticleFig(id=1320423120436056876, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423102312469146, language=CN, label=表2, caption=
6061-T6铝合金材料参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 弹性模量/GPa | 泊松比 | 屈服强度/MPa | 抗拉强度/MPa | 断后伸长率/% | A | n |
|---|
| 数值 | 68.8 | 0.33 | 308 | 341 | 10.67 | 81.92 | 15.74 |
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Different mesh partitioning strategies for the finite element model
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| 网格划分策略 | 网格类型 | 网格尺寸/mm | 网格数量 | 计算时间/s |
|---|
| 1 | C3D8R | 1.0 | 106 302 | 97 179 |
| 2 | C3D8R | 1.5 | 31 674 | 14 262 |
| 3 | C3D8R | 2.0 | 13 632 | 2 495.5 |
| 4 | C3D8R | 3.0 | 3 840 | 1 380.3 |
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有限元模型不同网格划分策略
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| 网格划分策略 | 网格类型 | 网格尺寸/mm | 网格数量 | 计算时间/s |
|---|
| 1 | C3D8R | 1.0 | 106 302 | 97 179 |
| 2 | C3D8R | 1.5 | 31 674 | 14 262 |
| 3 | C3D8R | 2.0 | 13 632 | 2 495.5 |
| 4 | C3D8R | 3.0 | 3 840 | 1 380.3 |
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Comparison of maximum compressive force betweenexperiment and numerical simulation
, figureFileSmall=null, figureFileBig=null, tableContent=
| 内筋类型 | Fa/kN | Fb/kN | 相对误差/% |
|---|
| 无筋 | 144.07 | 140.08 | -2.76 |
| 横筋 | 147.08 | 143.21 | -2.63 |
| 纵筋 | 156.59 | 157.35 | +0.49 |
| 螺旋筋 | 145.06 | 142.11 | -2.04 |
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试验和数值模拟最大压缩力比较
, figureFileSmall=null, figureFileBig=null, tableContent=
| 内筋类型 | Fa/kN | Fb/kN | 相对误差/% |
|---|
| 无筋 | 144.07 | 140.08 | -2.76 |
| 横筋 | 147.08 | 143.21 | -2.63 |
| 纵筋 | 156.59 | 157.35 | +0.49 |
| 螺旋筋 | 145.06 | 142.11 | -2.04 |
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Buckling modes and critical pressures of fourellipsoidal heads with different internal ribs
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), ArticleFig(id=1320423122608706354, tenantId=1146029695717560320, journalId=1319355204128309394, articleId=1320423102312469146, language=CN, label=表5, caption=
4种带不同内筋椭球封头屈曲模态及临界压力
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