Article(id=1281326890451452896, tenantId=1146029695717560320, journalId=1240685776644648972, issueId=1281326807345500788, articleNumber=null, orderNo=null, doi=10.3969/j.issn.1007-7294.2025.12.012, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1743091200000, receivedDateStr=2025-03-28, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1783421736586, onlineDateStr=2026-07-07, pubDate=1765728000000, pubDateStr=2025-12-15, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1783421736586, onlineIssueDateStr=2026-07-07, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1783421736586, creator=13701087609, updateTime=1783421736586, updator=13701087609, issue=Issue{id=1281326807345500788, tenantId=1146029695717560320, journalId=1240685776644648972, year='2025', volume='29', issue='12', pageStart='1827', pageEnd='1990', issueExtLink='null', onlineDate='null', pubDate='1765728000000', pubDateStr='2025-12-15', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1783421716772, creator='13701087609', updateTime=1783422145004, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1281328603572977733, tenantId=1146029695717560320, journalId=1240685776644648972, issueId=1281326807345500788, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1281328603572977734, tenantId=1146029695717560320, journalId=1240685776644648972, issueId=1281326807345500788, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=1953, endPage=1964, ext={EN=ArticleExt(id=1281326890669556705, articleId=1281326890451452896, tenantId=1146029695717560320, journalId=1240685776644648972, language=EN, title=Fatigue assessment of multi-environment aluminum alloy boats in low-temperature conditions, columnId=1242129251223274417, journalTitle=Journal of Ship Mechanics, columnName=Structural Mechanics, runingTitle=null, highlight=null, articleAbstract=
The polar environment is cold, complex, and characterized by a lack of data. Aluminum alloy multi-environment boats navigating in polar regions will encounter four types of interface conditions, including waves, water ice, snow, and ice-water interfaces. Therefore, it is necessary to conduct research on the fatigue damage of aluminum alloy multi-environment boats in low-temperature environments. This paper is based on a time-domain analysis method analyzing the stress response of the boats under four types of interface loads. The rainflow counting method was used to statistically analyze the time history of hot spot stresses, and the final damage and fatigue life were calculated based on the Miner linear cumulative damage theory. On this basis, the damage sensitivity to ship speed, interface height, and ice density was analyzed. The results indicate that wave impacts and water ice loads contribute significantly to hull damage, with ice density being the most significant factor affection damage. Fatigue tests were conducted on low-temperature aluminum alloy materials, welded joints, and actual ship nodes. The S-N curve of low-temperature aluminum alloy was fitted, and the reliability of the S-N curve was verified through fatigue tests of actual ship nodes. The research findings can be utilized for the fatigue assessment of 5059 aluminum alloy boats in low-temperature environments.
, authors=Yong-chao XU
1, Wei WANG
1, Xi YANG
2, Jian-guo WU
2, Wei LIU
2, authorsList=Yong-chao XU, Wei WANG, Xi YANG, Jian-guo WU, Wei LIU, authorCompany=null, correspAuthors=Jian-guo WU, authorNote=null, correspAuthorsNote=null, copyrightStatement=Copyright ©2025 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=1281326904800166002, articleId=1281326890451452896, tenantId=1146029695717560320, journalId=1240685776644648972, language=CN, title=低温环境下多栖铝合金艇的疲劳评估研究, columnId=1241023038926410098, journalTitle=船舶力学, columnName=结构力学, runingTitle=null, highlight=null, articleAbstract=
极地环境复杂多变且资料缺乏,铝合金多栖艇在极地航行时将经历低温环境下的波浪、碎冰区、冰雪面、冰水跨界面等四种界面的载荷作用,其疲劳损伤问题是结构强度设计的关键。本文基于有限元时域分析方法,对四种界面载荷作用下的艇体动力响应进行了计算,采用雨流计数法统计热点应力时历,按照Miner线性累积损伤理论计算累积损伤、疲劳寿命,同时还进行了损伤敏感性分析。开展了低温铝合金材料、焊接节点和实船节点疲劳试验,通过实验数据拟合出低温铝合金S–N曲线,通过实艇节点疲劳试验验证了该S–N曲线的可靠性。研究成果可用于低温环境下5059铝合金船体结构的疲劳评估。
, authors=徐永超
1, 王伟
1, 杨熙
2, 吴剑国
2, 刘威
2, authorsList=徐永超, 王伟, 杨熙, 吴剑国, 刘威, authorCompany=null, correspAuthors=吴剑国, authorNote=
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杨 熙(1997–),男,硕士研究生
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2.浙江工业大学 土木工程学院,杭州 310023)])]), Author(id=1281326906926678154, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326890451452896, orderNo=3, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=wujg63@163.com, emailSecond=null, emailThird=null, correspondingAuthor=1, authorType=1, ext={EN=AuthorExt(id=1281326907052507277, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326890451452896, authorId=1281326906926678154, language=EN, stringName=Jian-guo WU, firstName=Jian-guo, middleName=null, lastName=WU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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S–N曲线), Keyword(id=1281326908176580765, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326890451452896, language=CN, orderNo=5, keyword=敏感性)], refs=[Reference(id=1281326911590744264, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326890451452896, doi=null, pmid=null, pmcid=null, year=null, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=1, rfOrder=0, authorNames=null, journalName=null, refType=null, unstructuredReference=张玉玲, 潘际炎. 低温对钢材及其构件性能影响研究综述[J]. 中国铁道科学, 2003, 24(2): 89‒96., articleTitle=null, refAbstract=null), Reference(id=1281326911657853129, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326890451452896, doi=null, pmid=null, pmcid=null, year=null, volume=null, issue=null, pageStart=null, pageEnd=null, url=null, language=null, rfNumber=1, rfOrder=1, authorNames=null, journalName=null, refType=null, unstructuredReference=Zhang Y L, Pan J Y. 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Flowchart of hull fatigue assessment, figureFileSmall=lNGsAqtRRbP1IwxdeaCkYw==, figureFileBig=64Ff2USrLFqm1GRUZstDqg==, tableContent=null), ArticleFig(id=1281326908428239007, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326890451452896, language=CN, label=图1, caption=
艇体疲劳评估流程图, figureFileSmall=lNGsAqtRRbP1IwxdeaCkYw==, figureFileBig=64Ff2USrLFqm1GRUZstDqg==, tableContent=null), ArticleFig(id=1281326908604399776, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326890451452896, language=EN, label=Fig.2, caption=
Time division of designed fatigue life referring to calculation cases, figureFileSmall=o74fKdLS0PEQqjZeheosvg==, figureFileBig=4fYf3+yy3bBvGsPNzSmvjg==, tableContent=null), ArticleFig(id=1281326908671508641, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326890451452896, language=CN, label=图2, caption=
工况时间分配系数, figureFileSmall=o74fKdLS0PEQqjZeheosvg==, figureFileBig=4fYf3+yy3bBvGsPNzSmvjg==, tableContent=null), ArticleFig(id=1281326908734423202, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326890451452896, language=EN, label=Fig.3, caption=
Coupling model of a multi-environment aluminum alloy boat, figureFileSmall=lY2VhW/2uZ8zjFEIBOo9Nw==, figureFileBig=GtKlUSWNb1Ylw1O+uWnqZw==, tableContent=null), ArticleFig(id=1281326908805726371, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326890451452896, language=CN, label=图3, caption=
多栖铝合金艇艇体结构耦合模型, figureFileSmall=lY2VhW/2uZ8zjFEIBOo9Nw==, figureFileBig=GtKlUSWNb1Ylw1O+uWnqZw==, tableContent=null), ArticleFig(id=1281326908885418148, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326890451452896, language=EN, label=Fig.4, caption=
Time histories of loads for some cases, figureFileSmall=vHXNSobRJmOIPIedtACQuw==, figureFileBig=C1Z3xvYwF0eJPKyG4Wm8FA==, tableContent=null), ArticleFig(id=1281326908956721317, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326890451452896, language=CN, label=图4, caption=
部分工况载荷时程曲线, figureFileSmall=vHXNSobRJmOIPIedtACQuw==, figureFileBig=C1Z3xvYwF0eJPKyG4Wm8FA==, tableContent=null), ArticleFig(id=1281326909019635878, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326890451452896, language=EN, label=Fig.5, caption=
Finite element model of hull (bottom), figureFileSmall=b2BPhoDz/uNdNwA5rp2lFQ==, figureFileBig=PQ5Cpo9YNiW7Xe4uUIqfOQ==, tableContent=null), ArticleFig(id=1281326909082550439, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326890451452896, language=CN, label=图5, caption=
艇体艇底部分的有限元模型, figureFileSmall=b2BPhoDz/uNdNwA5rp2lFQ==, figureFileBig=PQ5Cpo9YNiW7Xe4uUIqfOQ==, tableContent=null), ArticleFig(id=1281326909145465000, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326890451452896, language=EN, label=Fig.6, caption=
Boundary conditions, figureFileSmall=octf3Dg5UL1bAxjP2HCocw==, figureFileBig=paq32Cum3V+HXG8GTrxtkQ==, tableContent=null), ArticleFig(id=1281326909212573865, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326890451452896, language=CN, label=图6, caption=
边界条件, figureFileSmall=octf3Dg5UL1bAxjP2HCocw==, figureFileBig=paq32Cum3V+HXG8GTrxtkQ==, tableContent=null), ArticleFig(id=1281326909288071338, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326890451452896, language=EN, label=Fig.7, caption=
Stress contour plot of six hot spots, figureFileSmall=nzOl0KCyxvlECuMTQxuV+Q==, figureFileBig=AG4p9tykYPyCyyPge5VyKw==, tableContent=null), ArticleFig(id=1281326909346791595, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326890451452896, language=CN, label=图7, caption=
热点应力云图, figureFileSmall=nzOl0KCyxvlECuMTQxuV+Q==, figureFileBig=AG4p9tykYPyCyyPge5VyKw==, tableContent=null), ArticleFig(id=1281326909418094764, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326890451452896, language=EN, label=Fig.8, caption=
Hot spot stress curves of selected operating conditions, figureFileSmall=K+2l6uC0SPfbe3UJptrgcQ==, figureFileBig=sfEowj+UEYgJoXwZizKpWg==, tableContent=null), ArticleFig(id=1281326909489397933, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326890451452896, language=CN, label=图8, caption=
部分工况热点应力曲线, figureFileSmall=K+2l6uC0SPfbe3UJptrgcQ==, figureFileBig=sfEowj+UEYgJoXwZizKpWg==, tableContent=null), ArticleFig(id=1281326909560701102, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326890451452896, language=EN, label=Fig.9, caption=
Statistical histogram of stress, figureFileSmall=BCzkAQKDq3zQp84BK8pMhA==, figureFileBig=e6f5RncXi1Nqoet7dKmTIQ==, tableContent=null), ArticleFig(id=1281326909652975791, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326890451452896, language=CN, label=图9, caption=
应力直方图, figureFileSmall=BCzkAQKDq3zQp84BK8pMhA==, figureFileBig=e6f5RncXi1Nqoet7dKmTIQ==, tableContent=null), ArticleFig(id=1281326909770416304, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326890451452896, language=EN, label=Fig.10, caption=
Low-temperature fatigue testing of materials and joints, figureFileSmall=O+q2WZkI5HU3Jo+ntmXFMA==, figureFileBig=K8qdWDswzpvaPwSyYMxNGg==, tableContent=null), ArticleFig(id=1281326909845913777, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326890451452896, language=CN, label=图10, caption=
材料与节点低温疲劳试验, figureFileSmall=O+q2WZkI5HU3Jo+ntmXFMA==, figureFileBig=K8qdWDswzpvaPwSyYMxNGg==, tableContent=null), ArticleFig(id=1281326909904634034, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326890451452896, language=EN, label=Fig.11, caption=
S-N curve of low-temperature fatigue testing, figureFileSmall=o6VuM/Rp+YMjzuaMbzv6wg==, figureFileBig=DPkg+ZFSZTCQ3LI70n2qkQ==, tableContent=null), ArticleFig(id=1281326909963354291, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326890451452896, language=CN, label=图11, caption=
低温疲劳S–N曲线, figureFileSmall=o6VuM/Rp+YMjzuaMbzv6wg==, figureFileBig=DPkg+ZFSZTCQ3LI70n2qkQ==, tableContent=null), ArticleFig(id=1281326910026268852, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326890451452896, language=EN, label=Fig.12, caption=
Node test of actual ship structure under low-temperature, figureFileSmall=es0TnJYsJxTQqb0uA8F/Yg==, figureFileBig=bQCNYfnQmCBcEDiJzpEpLA==, tableContent=null), ArticleFig(id=1281326910131126453, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326890451452896, language=CN, label=图12, caption=
低温实艇结构节点试验, figureFileSmall=es0TnJYsJxTQqb0uA8F/Yg==, figureFileBig=bQCNYfnQmCBcEDiJzpEpLA==, tableContent=null), ArticleFig(id=1281326910202429622, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326890451452896, language=EN, label=Fig.13, caption=
Finite element model of test specimens, figureFileSmall=tN3YIaEMpdh022skoHP+RA==, figureFileBig=6lSf9yOoUmVbGtijdbFhzQ==, tableContent=null), ArticleFig(id=1281326910282121399, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326890451452896, language=CN, label=图13, caption=
试件有限元模型, figureFileSmall=tN3YIaEMpdh022skoHP+RA==, figureFileBig=6lSf9yOoUmVbGtijdbFhzQ==, tableContent=null), ArticleFig(id=1281326910366007480, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326890451452896, language=EN, label=Tab.1, caption=
Fatigue calculation cases
, figureFileSmall=null, figureFileBig=null, tableContent=
| 序号 | 环境、工况编号 | 工况内容 |
|---|
| 1 | 一(1) | 二级海况,不规则波(迎浪,波高0.5 m),航速:20 km/h |
| 2 | 一(2) | 平静水面,航速:60 km/h |
| 3 | 二(1) | 速度:15 km/h,碎冰比例40% |
| 4 | 二(2) | 速度:15 km/h,碎冰度比例60% |
| 5 | 二(3) | 速度:15 km/h,碎冰比例80% |
| 6 | 三 | 平整冰面(雪),100 km/h滑行 |
| 7 | 四(1) | 水到冰,速度5 km/h,冰水上部分高度0.3 m |
| 8 | 四(2) | 冰到水,速度5 km/h,冰水上部分高度0.3 m |
| 9 | 四(3) | 冰障碍高度:0.1 m,速度5 km/h |
| 10 | 四(4) | 冰障碍高度:0.1 m,速度10 km/h |
| 11 | 四(5) | 冰障碍高度:0.1 m,速度15 km/h |
| 12 | 四(6) | 冰障碍高度:0.2 m,速度5 km/h |
| 13 | 四(7) | 冰障碍高度:0.2 m,速度10 km/h |
| 14 | 四(8) | 冰障碍高度:0.3 m,速度5 km/h |
), ArticleFig(id=1281326910454087865, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326890451452896, language=CN, label=表1, caption=
疲劳计算工况
, figureFileSmall=null, figureFileBig=null, tableContent=
| 序号 | 环境、工况编号 | 工况内容 |
|---|
| 1 | 一(1) | 二级海况,不规则波(迎浪,波高0.5 m),航速:20 km/h |
| 2 | 一(2) | 平静水面,航速:60 km/h |
| 3 | 二(1) | 速度:15 km/h,碎冰比例40% |
| 4 | 二(2) | 速度:15 km/h,碎冰度比例60% |
| 5 | 二(3) | 速度:15 km/h,碎冰比例80% |
| 6 | 三 | 平整冰面(雪),100 km/h滑行 |
| 7 | 四(1) | 水到冰,速度5 km/h,冰水上部分高度0.3 m |
| 8 | 四(2) | 冰到水,速度5 km/h,冰水上部分高度0.3 m |
| 9 | 四(3) | 冰障碍高度:0.1 m,速度5 km/h |
| 10 | 四(4) | 冰障碍高度:0.1 m,速度10 km/h |
| 11 | 四(5) | 冰障碍高度:0.1 m,速度15 km/h |
| 12 | 四(6) | 冰障碍高度:0.2 m,速度5 km/h |
| 13 | 四(7) | 冰障碍高度:0.2 m,速度10 km/h |
| 14 | 四(8) | 冰障碍高度:0.3 m,速度5 km/h |
), ArticleFig(id=1281326910529585338, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326890451452896, language=EN, label=Tab.2, caption=
Fatigue damage calculated results for node 6
, figureFileSmall=null, figureFileBig=null, tableContent=
| 工况 | 时间 长度/s | $ {\lambda _i} $ | $ {k_i} $ | 单次工况下应力 循环总次数 | 时间分配 系数 | 应力参数 | 单工况 损伤度 | 设计寿命期内 损伤度 |
|---|
| 一(1) | 100 | 0.732 | 0.522 | 1311.5 | 0.060 | 42683 | 4.680E–08 | 8.855E–03 |
| 一(2) | 100 | 0.293 | 0.341 | 477.5 | 0.060 | 1235 | 1.354E–09 | 2.562E–04 |
| 二(1) | 29.96 | 1.341 | 0.642 | 467.5 | 0.096 | 32477 | 1.065E–08 | 1.077E–02 |
| 二(2) | 21.96 | 1.389 | 0.746 | 781 | 0.048 | 75533 | 1.820E–08 | 1.254E–02 |
| 二(3) | 23.36 | 1.432 | 0.696 | 493 | 0.016 | 128530 | 3.294E–08 | 1.244E–02 |
| 三 | 100 | 1.08 | 0.74 | 250 | 0.120 | 6400 | 7.010E–09 | 2.650E–03 |
| 四(1) | 6.83 | | | 139.5 | 0.080 | 2036722 | 1.525E–07 | 4.454E–04 |
| 四(2) | 4 | | | 147 | 0.080 | 1113027 | 4.882E–08 | 1.425E–04 |
| 四(3) | 3.13 | | | 92 | 0.014 | 267793 | 9.191E–09 | 4.831E–06 |
| 四(4) | 1.93 | | | 60.5 | 0.014 | 457109 | 9.673E–09 | 4.033E–06 |
| 四(5) | 1.6 | | | 65 | 0.005 | 731529 | 1.283E–08 | 3.124E–06 |
| 四(6) | 3.13 | | | 90 | 0.011 | 347039 | 1.191E–08 | 4.695E–06 |
| 四(7) | 1.92 | | | 61 | 0.011 | 601661 | 1.267E–08 | 5.917E–06 |
| 四(8) | 3.13 | | | 112.5 | 0.022 | 1001857 | 3.438E–08 | 2.711E–05 |
), ArticleFig(id=1281326910605082811, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326890451452896, language=CN, label=表2, caption=
节点6疲劳损伤度结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 工况 | 时间 长度/s | $ {\lambda _i} $ | $ {k_i} $ | 单次工况下应力 循环总次数 | 时间分配 系数 | 应力参数 | 单工况 损伤度 | 设计寿命期内 损伤度 |
|---|
| 一(1) | 100 | 0.732 | 0.522 | 1311.5 | 0.060 | 42683 | 4.680E–08 | 8.855E–03 |
| 一(2) | 100 | 0.293 | 0.341 | 477.5 | 0.060 | 1235 | 1.354E–09 | 2.562E–04 |
| 二(1) | 29.96 | 1.341 | 0.642 | 467.5 | 0.096 | 32477 | 1.065E–08 | 1.077E–02 |
| 二(2) | 21.96 | 1.389 | 0.746 | 781 | 0.048 | 75533 | 1.820E–08 | 1.254E–02 |
| 二(3) | 23.36 | 1.432 | 0.696 | 493 | 0.016 | 128530 | 3.294E–08 | 1.244E–02 |
| 三 | 100 | 1.08 | 0.74 | 250 | 0.120 | 6400 | 7.010E–09 | 2.650E–03 |
| 四(1) | 6.83 | | | 139.5 | 0.080 | 2036722 | 1.525E–07 | 4.454E–04 |
| 四(2) | 4 | | | 147 | 0.080 | 1113027 | 4.882E–08 | 1.425E–04 |
| 四(3) | 3.13 | | | 92 | 0.014 | 267793 | 9.191E–09 | 4.831E–06 |
| 四(4) | 1.93 | | | 60.5 | 0.014 | 457109 | 9.673E–09 | 4.033E–06 |
| 四(5) | 1.6 | | | 65 | 0.005 | 731529 | 1.283E–08 | 3.124E–06 |
| 四(6) | 3.13 | | | 90 | 0.011 | 347039 | 1.191E–08 | 4.695E–06 |
| 四(7) | 1.92 | | | 61 | 0.011 | 601661 | 1.267E–08 | 5.917E–06 |
| 四(8) | 3.13 | | | 112.5 | 0.022 | 1001857 | 3.438E–08 | 2.711E–05 |
), ArticleFig(id=1281326910688968892, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326890451452896, language=EN, label=Tab.3, caption=
Total fatigue damage and life of hot spot locations
, figureFileSmall=null, figureFileBig=null, tableContent=
| 节点编号 | 疲劳损伤度 | 疲劳寿命/年 |
|---|
| 节点1 | 0.307 | 32.58 |
| 节点2 | 0.131 | 76.17 |
| 节点3 | 0.112 | 88.97 |
| 节点4 | 0.028 | 323.48 |
| 节点5 | 0.070 | 143.15 |
| 节点6 | 0.048 | 210.42 |
), ArticleFig(id=1281326910768660669, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326890451452896, language=CN, label=表3, caption=
热点位置疲劳总损伤度及寿命
, figureFileSmall=null, figureFileBig=null, tableContent=
| 节点编号 | 疲劳损伤度 | 疲劳寿命/年 |
|---|
| 节点1 | 0.307 | 32.58 |
| 节点2 | 0.131 | 76.17 |
| 节点3 | 0.112 | 88.97 |
| 节点4 | 0.028 | 323.48 |
| 节点5 | 0.070 | 143.15 |
| 节点6 | 0.048 | 210.42 |
), ArticleFig(id=1281326910835769534, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326890451452896, language=EN, label=Tab.4, caption=
Results of sensitivity analysis
, figureFileSmall=null, figureFileBig=null, tableContent=
| 敏感因素 | 损伤度变化范围 | | 敏感因素变化范围 | 敏感度系数 |
|---|
| Min | Max | | Min | Max |
|---|
| 行驶速度(km/h) | 2.9363E–09 | 8.0211E–09 | | 5 | 15 | 0.908 |
| 跨界面高度(m) | 5.1021E–09 | 7.8181E–09 | | 0.1 | 0.3 | 0.409 |
| 碎冰比例(%) | 3.5560E–10 | 2.4656E–09 | | 40 | 80 | 3.826 |
), ArticleFig(id=1281326910919655615, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326890451452896, language=CN, label=表4, caption=
敏感度分析结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 敏感因素 | 损伤度变化范围 | | 敏感因素变化范围 | 敏感度系数 |
|---|
| Min | Max | | Min | Max |
|---|
| 行驶速度(km/h) | 2.9363E–09 | 8.0211E–09 | | 5 | 15 | 0.908 |
| 跨界面高度(m) | 5.1021E–09 | 7.8181E–09 | | 0.1 | 0.3 | 0.409 |
| 碎冰比例(%) | 3.5560E–10 | 2.4656E–09 | | 40 | 80 | 3.826 |
), ArticleFig(id=1281326910990958784, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326890451452896, language=EN, label=Tab.5, caption=
Results of damage contribution analysis
, figureFileSmall=null, figureFileBig=null, tableContent=
| 节点编号 | 损伤贡献度 |
|---|
| 水面航行 | 碎冰区航行 | 冰雪面行驶 | 跨界面碰撞 |
|---|
| 节点1 | 30.57% | 53.51% | 10.29% | 5.64% |
| 节点2 | 81.37% | 4.28% | 12.41% | 1.94% |
| 节点3 | 14.47% | 73.99% | 6.01% | 5.54% |
| 节点4 | 20.78% | 52.53% | 24.06% | 2.63% |
| 节点5 | 5.18% | 86.22% | 8.44% | 0.17% |
| 节点6 | 17.90% | 68.91% | 11.84% | 1.35% |
), ArticleFig(id=1281326911062261953, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326890451452896, language=CN, label=表5, caption=
损伤贡献分析结果
, figureFileSmall=null, figureFileBig=null, tableContent=
| 节点编号 | 损伤贡献度 |
|---|
| 水面航行 | 碎冰区航行 | 冰雪面行驶 | 跨界面碰撞 |
|---|
| 节点1 | 30.57% | 53.51% | 10.29% | 5.64% |
| 节点2 | 81.37% | 4.28% | 12.41% | 1.94% |
| 节点3 | 14.47% | 73.99% | 6.01% | 5.54% |
| 节点4 | 20.78% | 52.53% | 24.06% | 2.63% |
| 节点5 | 5.18% | 86.22% | 8.44% | 0.17% |
| 节点6 | 17.90% | 68.91% | 11.84% | 1.35% |
), ArticleFig(id=1281326911125176514, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326890451452896, language=EN, label=Tab.6, caption=
Parameters of S-N curve
, figureFileSmall=null, figureFileBig=null, tableContent=
| 温度及试样类型 | 截距A | S–N曲线反斜率m |
|---|
| 室温母材 | 1.51356×1015 | 4.45 |
| 低温母材 | 4.36516×1013 | 3.78 |
| 室温T型焊接接头 | 6.16595×1013 | 4.17 |
| 低温T型焊接接头 | 9.12011×1013 | 4.17 |
| 低温十字型焊接接头 | 3.31131×1014 | 4.35 |
), ArticleFig(id=1281326911204868291, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326890451452896, language=CN, label=表6, caption=
S–N曲线参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 温度及试样类型 | 截距A | S–N曲线反斜率m |
|---|
| 室温母材 | 1.51356×1015 | 4.45 |
| 低温母材 | 4.36516×1013 | 3.78 |
| 室温T型焊接接头 | 6.16595×1013 | 4.17 |
| 低温T型焊接接头 | 9.12011×1013 | 4.17 |
| 低温十字型焊接接头 | 3.31131×1014 | 4.35 |
), ArticleFig(id=1281326911280365764, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326890451452896, language=EN, label=Tab.7, caption=
Comparison of stress results
, figureFileSmall=null, figureFileBig=null, tableContent=
| 测点位置 | 试验平均值 /MPa | 有限元模拟值 /MPa | 误差(软件/试验) |
|---|
| 0.5t测点位置 | 76.90 | 85.66 | 1.11 |
| 1.5t测点位置 | 73.71 | 73.86 | 1.01 |
| 热点应力幅 | 78.49 | 91.56 | 1.17 |
), ArticleFig(id=1281326911355863237, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326890451452896, language=CN, label=表7, caption=
应力结果比较
, figureFileSmall=null, figureFileBig=null, tableContent=
| 测点位置 | 试验平均值 /MPa | 有限元模拟值 /MPa | 误差(软件/试验) |
|---|
| 0.5t测点位置 | 76.90 | 85.66 | 1.11 |
| 1.5t测点位置 | 73.71 | 73.86 | 1.01 |
| 热点应力幅 | 78.49 | 91.56 | 1.17 |
), ArticleFig(id=1281326911427166406, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326890451452896, language=EN, label=Tab.8, caption=
Comparison of fatigue life results of actual ship nodes of the hull
, figureFileSmall=null, figureFileBig=null, tableContent=
| S–N 曲线 置信度 | 载荷水平 /kN | 有限元模拟 | | 试验平均值 |
|---|
| 热点应力幅 $ \Delta \mathbf{\sigma } $ /MPa | 疲劳寿命 N /次 | | 热点应力幅 ∆σ /MPa | 疲劳寿命 N /次 | 实际试验平均 疲劳寿命/次 |
|---|
| 50% | 10 | 91.56 | 602125 | | 78.49 | 1144522 | 770452 |
| 15 | 140.83 | 99986 | | 124.35 | 168006 | 108379 |
| 97.6% | 10 | 91.56 | 142944 | | 78.49 | 370360 | 770452 |
| 15 | 140.83 | 32354 | | 124.35 | 54365 | 108379 |
), ArticleFig(id=1281326911498469575, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1281326890451452896, language=CN, label=表8, caption=
艇体实船节点的疲劳寿命结果对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| S–N 曲线 置信度 | 载荷水平 /kN | 有限元模拟 | | 试验平均值 |
|---|
| 热点应力幅 $ \Delta \mathbf{\sigma } $ /MPa | 疲劳寿命 N /次 | | 热点应力幅 ∆σ /MPa | 疲劳寿命 N /次 | 实际试验平均 疲劳寿命/次 |
|---|
| 50% | 10 | 91.56 | 602125 | | 78.49 | 1144522 | 770452 |
| 15 | 140.83 | 99986 | | 124.35 | 168006 | 108379 |
| 97.6% | 10 | 91.56 | 142944 | | 78.49 | 370360 | 770452 |
| 15 | 140.83 | 32354 | | 124.35 | 54365 | 108379 |
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