Article(id=1199642734677033076, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1199642729207660562, articleNumber=null, orderNo=null, doi=10.16790/j.cnki.1009-9239.im.2023.11.017, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1672588800000, receivedDateStr=2023-01-02, revisedDate=1678464000000, revisedDateStr=2023-03-11, acceptedDate=null, acceptedDateStr=null, onlineDate=1763946716230, onlineDateStr=2025-11-24, pubDate=1700409600000, pubDateStr=2023-11-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1763946716230, onlineIssueDateStr=2025-11-24, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1763946716230, creator=13701087609, updateTime=1763946716230, updator=13701087609, issue=Issue{id=1199642729207660562, tenantId=1146029695717560320, journalId=1149653034449285133, year='2023', volume='56', issue='11', pageStart='1', pageEnd='116', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1763946714927, creator=13701087609, updateTime=1766563708953, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1210619197772657229, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1199642729207660562, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1210619197772657230, tenantId=1146029695717560320, journalId=1149653034449285133, issueId=1199642729207660562, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=110, endPage=116, ext={EN=ArticleExt(id=1199642734974828668, articleId=1199642734677033076, tenantId=1146029695717560320, journalId=1149653034449285133, language=EN, title=Parametric evaluation method for torsion damage of submarine cables, columnId=1192878364340924664, journalTitle=Insulating Materials, columnName=Test and Analysis, runingTitle=null, highlight=null, articleAbstract=
In the process of transportation and laying, the submarine cable will inevitably be twisted. If the twisting angle is too large, it will cause irreparable damage for the submarine cable. In this paper, a torsion model of submarine cable was established by finite element method, and the characteristic parameters that can effectively reflect the mechanical characteristics of submarine cable were determined by analyzing the temporal and spatial distribution characteristics of stress and strain. The threshold values of each characteristic parameter when torsion failure occured were established, and the mechanical parameter system that can represent the torsion behavior of submarine cable was established. The results show that the axial stress distribution of the submarine cable is more uniform at the initial stage of torsion. With the increase of torsion angle, the axial stress distribution of cable body will fluctuate. A parametric system including copper conductor stress, XLPE insulating layer stress, lead alloy stress, armor layer stress, and torsion angle can be established for parametric evaluation of submarine cable torsion behavior.
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海底电缆在运输、敷设过程中,不可避免地会发生扭转,若扭转角度过大,会对其造成不可恢复的损伤。本文利用有限元方法建立了海底电缆的扭转模型,通过分析应力、应变的时空分布特点,确定了能够有效反映海缆力学特性的特征参量,制定了扭转故障发生时各特征参量的阈值,建立了能够表征海底电缆扭转行为的力学参量体系。结果表明:海缆发生扭转初期,其轴向各结构应力分布较为均匀;随着扭转角度的增加,缆体轴向应力分布会出现波动,可建立包括铜导体应力、XLPE绝缘层应力、铅合金护套应力、铠装层应力和扭转角度的参量体系,对海缆扭转行为进行参量化评价。
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吕安强(1979-),男(汉族),河北任丘人,副教授,博士,主要从事分布式光纤传感及新型电力系统状态智能感知技术的研究;
李婷(1998-),女(汉族),河北保定人,硕士生,主要从事海底电缆力学特性的分析研究。
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1Department of Electronic and Communication Engineering, North China Electric Power University, Baoding 071003, China
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1华北电力大学,电子与通信工程系,河北 保定 071003
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吕安强(1979-),男(汉族),河北任丘人,副教授,博士,主要从事分布式光纤传感及新型电力系统状态智能感知技术的研究;
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吕安强(1979-),男(汉族),河北任丘人,副教授,博士,主要从事分布式光纤传感及新型电力系统状态智能感知技术的研究;
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李婷(1998-),女(汉族),河北保定人,硕士生,主要从事海底电缆力学特性的分析研究。
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2020,
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51(10):62-66., articleTitle=影响525 kV挤包绝缘柔性直流海缆绝缘击穿的制造工艺因素探讨, refAbstract=null)], funds=[Fund(id=1217475516291010632, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199642734677033076, awardId=52177141, language=CN, fundingSource=国家自然科学基金资助项目(52177141), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1217475511530476309, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199642734677033076, xref=1, ext=[AuthorCompanyExt(id=1217475511538864918, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199642734677033076, companyId=1217475511530476309, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1Department of Electronic and Communication Engineering, North China Electric Power University, Baoding 071003, China), AuthorCompanyExt(id=1217475511543059223, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199642734677033076, companyId=1217475511530476309, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1华北电力大学,电子与通信工程系,河北 保定 071003)]), AuthorCompany(id=1217475511622751006, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199642734677033076, xref=2, ext=[AuthorCompanyExt(id=1217475511631139615, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199642734677033076, companyId=1217475511622751006, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2Hebei Key Laboratory of Power Internet of Things Technology, North China Electric Power University, Baoding 071003, China), AuthorCompanyExt(id=1217475511635333920, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199642734677033076, companyId=1217475511622751006, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2华北电力大学,河北省电力物联网技术重点实验室,河北 保定 071003)])], figs=[ArticleFig(id=1217475513883481009, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199642734677033076, language=EN, label=Fig.1, caption=
Structure diagram of submarine cable section, figureFileSmall=zFYaFF5wXulY7zfFh+vXWg==, figureFileBig=hVwnTMLLcsSOzdIsP9AKlw==, tableContent=null), ArticleFig(id=1217475513954784182, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199642734677033076, language=CN, label=图1, caption=
海缆剖面结构图, figureFileSmall=zFYaFF5wXulY7zfFh+vXWg==, figureFileBig=hVwnTMLLcsSOzdIsP9AKlw==, tableContent=null), ArticleFig(id=1217475514068030397, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199642734677033076, language=EN, label=Fig.2, caption=
Submarine cable finite element model meshing, figureFileSmall=1+LDam9HarOdsgjWOXDjdQ==, figureFileBig=MOZnJ3yKoK+rVBnT5hVDgQ==, tableContent=null), ArticleFig(id=1217475514139333569, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199642734677033076, language=CN, label=图2, caption=
海缆有限元模型网格划分, figureFileSmall=1+LDam9HarOdsgjWOXDjdQ==, figureFileBig=MOZnJ3yKoK+rVBnT5hVDgQ==, tableContent=null), ArticleFig(id=1217475514239996871, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199642734677033076, language=EN, label=Fig.3, caption=
Internal energy/hourglass energy change curves with time, figureFileSmall=yeHpH8M+bNbTJpGGt0okhg==, figureFileBig=/+lMstV5PM4Y18R5jLJ0Fw==, tableContent=null), ArticleFig(id=1217475514336465871, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199642734677033076, language=CN, label=图3, caption=
内能/沙漏能随时间变化曲线, figureFileSmall=yeHpH8M+bNbTJpGGt0okhg==, figureFileBig=/+lMstV5PM4Y18R5jLJ0Fw==, tableContent=null), ArticleFig(id=1217475514411963350, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199642734677033076, language=EN, label=Fig.4, caption=
Stress curves of each layer structure of submarine cable with time, figureFileSmall=VPQX3ba6rK1fXUZny8N4WA==, figureFileBig=Eb6bsstBOj2aBl05kDbfnQ==, tableContent=null), ArticleFig(id=1217475514529403873, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199642734677033076, language=CN, label=图4, caption=
海缆各层结构应力随时间变化曲线, figureFileSmall=VPQX3ba6rK1fXUZny8N4WA==, figureFileBig=Eb6bsstBOj2aBl05kDbfnQ==, tableContent=null), ArticleFig(id=1217475514672010217, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199642734677033076, language=EN, label=Fig.5, caption=
Stress distribution diagram of the copper conductor in submarine cable, figureFileSmall=GDF43RyHrSQK2zzHu9FdPw==, figureFileBig=zzOB1Gvl43YimGP89JidDA==, tableContent=null), ArticleFig(id=1217475514776867826, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199642734677033076, language=CN, label=图5, caption=
海缆铜导体应力分布图, figureFileSmall=GDF43RyHrSQK2zzHu9FdPw==, figureFileBig=zzOB1Gvl43YimGP89JidDA==, tableContent=null), ArticleFig(id=1217475514864948221, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199642734677033076, language=EN, label=Fig.6, caption=
Stress-plastic strain curves for each layer, figureFileSmall=LaVdY9lMHr5djrijIUKBtQ==, figureFileBig=FZsJsoQBZB+BD/JWEaui+Q==, tableContent=null), ArticleFig(id=1217475514948833282, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199642734677033076, language=CN, label=图6, caption=
各层应力-塑性应变曲线图, figureFileSmall=LaVdY9lMHr5djrijIUKBtQ==, figureFileBig=FZsJsoQBZB+BD/JWEaui+Q==, tableContent=null), ArticleFig(id=1217475515036913672, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199642734677033076, language=EN, label=Fig.7, caption=
Stress-torsion angle diagram for each layer, figureFileSmall=MvlAVsoXBnfPMzBKw8QxEg==, figureFileBig=XpO/G3HtPtgIyz3gjw0nmA==, tableContent=null), ArticleFig(id=1217475515154354191, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199642734677033076, language=CN, label=图7, caption=
各层应力-扭转角度曲线图, figureFileSmall=MvlAVsoXBnfPMzBKw8QxEg==, figureFileBig=XpO/G3HtPtgIyz3gjw0nmA==, tableContent=null), ArticleFig(id=1217475515255017491, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199642734677033076, language=EN, label=Fig.8, caption=
Stress curves of each layer structure of submarine cable with time, figureFileSmall=KQGt9UmMU7IXgaJS2qjiLA==, figureFileBig=FEGxlSrDvhKPF5rdstVQGw==, tableContent=null), ArticleFig(id=1217475515376652315, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199642734677033076, language=CN, label=图8, caption=
海缆各层结构应力随时间变化曲线, figureFileSmall=KQGt9UmMU7IXgaJS2qjiLA==, figureFileBig=FEGxlSrDvhKPF5rdstVQGw==, tableContent=null), ArticleFig(id=1217475515510870050, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199642734677033076, language=EN, label=Fig.9, caption=
Comparison on stress nephogram of submarine cable, figureFileSmall=M/occ7h7RFBPbvj9OG8Inw==, figureFileBig=wKvbh42NLMdvOzgyxHPl2Q==, tableContent=null), ArticleFig(id=1217475515607339048, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199642734677033076, language=CN, label=图9, caption=
海缆应力云图对比, figureFileSmall=M/occ7h7RFBPbvj9OG8Inw==, figureFileBig=wKvbh42NLMdvOzgyxHPl2Q==, tableContent=null), ArticleFig(id=1217475515733168174, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199642734677033076, language=EN, label=Tab.1, caption=
The each structure size of submarine cable before and after simplification, figureFileSmall=null, figureFileBig=null, tableContent=
| 结构 | 简化前 | 简化后 |
|---|
| 外径 | 厚度 | 外径 | 厚度 |
|---|
| 铜导体 | 20.8 | 10.4 | 20.8 | 10.4 |
| 导体屏蔽 | 22.8 | 1.0 | — | — |
| XLPE绝缘 | 59.8 | 18.5 | 61.8 | 20.5 |
| 绝缘屏蔽 | 61.8 | 1.0 | — | — |
| 半导电阻水带 | 64.3 | 1.25 | — | — |
| 铅合金护套 | 72.3 | 4.0 | 72.3 | 5.25 |
| 沥青防腐层 | 72.8 | 0.25 | — | — |
| HDPE护套 | 82.4 | 4.8 | 82.2 | 4.95 |
| PET填充条、光单元(两根) | 94.4 | 6.0 | 89.2 | 6.0 |
| 内衬层 | 97.4 | 1.5 | — | — |
| 铠装层 | 109.4 | 6.0 | 96.2 | 6.0 |
| 综合外被层 | 114.7 | 2.5 | — | — |
), ArticleFig(id=1217475515825442867, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199642734677033076, language=CN, label=表1, caption=
简化前后海缆的各层结构尺寸
, figureFileSmall=null, figureFileBig=null, tableContent=
| 结构 | 简化前 | 简化后 |
|---|
| 外径 | 厚度 | 外径 | 厚度 |
|---|
| 铜导体 | 20.8 | 10.4 | 20.8 | 10.4 |
| 导体屏蔽 | 22.8 | 1.0 | — | — |
| XLPE绝缘 | 59.8 | 18.5 | 61.8 | 20.5 |
| 绝缘屏蔽 | 61.8 | 1.0 | — | — |
| 半导电阻水带 | 64.3 | 1.25 | — | — |
| 铅合金护套 | 72.3 | 4.0 | 72.3 | 5.25 |
| 沥青防腐层 | 72.8 | 0.25 | — | — |
| HDPE护套 | 82.4 | 4.8 | 82.2 | 4.95 |
| PET填充条、光单元(两根) | 94.4 | 6.0 | 89.2 | 6.0 |
| 内衬层 | 97.4 | 1.5 | — | — |
| 铠装层 | 109.4 | 6.0 | 96.2 | 6.0 |
| 综合外被层 | 114.7 | 2.5 | — | — |
), ArticleFig(id=1217475515968049212, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199642734677033076, language=EN, label=Tab.2, caption=
Warning alarm and distribution rule of each parameter index of submarine cable, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 预警 | 报警 | 严重 | 非常严重 | 扭转 |
|---|
| 时间 | 空间 |
|---|
| 铜导体应力/MPa | 60%屈服应力值 186 | 弹性极限 270 | 屈服应力值 310 | 强度极限 480 | 1.线性增加; 2.达到屈服后,以小于弹性阶段斜率线性增加。 | 海缆轴向上各节点应力变化趋势一致,且变化较为平稳 |
| 铠装层应力/MPa | 60%屈服应力值 410 | 弹性极限 600 | 屈服应力值 690 | 强度极限 1 040 |
| 铅合金护套应力/MPa | 60%屈服应力值 8.7 | 弹性极限 10.0 | 屈服应力值 14.7 | 强度极限 27.0 |
| XLPE绝缘层应力/MPa | 60%屈服应力值 20 | 弹性极限 31 | 屈服应力值 34 | 强度极限 35 | 1.线性增加; 2.达到屈服后,应力趋于某一稳定值。 |
| 扭转角度/(°/m) | 60%屈服应力值 1.8 | 初次发生屈服 3 | 自身允许最大扭转角度 11 | 第二次发生屈服 17.4 | 扭转速度越快,各层应力随时间增长速度越快,越早进入塑性阶段。 |
), ArticleFig(id=1217475516085489731, tenantId=1146029695717560320, journalId=1149653034449285133, articleId=1199642734677033076, language=CN, label=表2, caption=
海缆各参量指标的预警报警及分布规律
, figureFileSmall=null, figureFileBig=null, tableContent=
| 项目 | 预警 | 报警 | 严重 | 非常严重 | 扭转 |
|---|
| 时间 | 空间 |
|---|
| 铜导体应力/MPa | 60%屈服应力值 186 | 弹性极限 270 | 屈服应力值 310 | 强度极限 480 | 1.线性增加; 2.达到屈服后,以小于弹性阶段斜率线性增加。 | 海缆轴向上各节点应力变化趋势一致,且变化较为平稳 |
| 铠装层应力/MPa | 60%屈服应力值 410 | 弹性极限 600 | 屈服应力值 690 | 强度极限 1 040 |
| 铅合金护套应力/MPa | 60%屈服应力值 8.7 | 弹性极限 10.0 | 屈服应力值 14.7 | 强度极限 27.0 |
| XLPE绝缘层应力/MPa | 60%屈服应力值 20 | 弹性极限 31 | 屈服应力值 34 | 强度极限 35 | 1.线性增加; 2.达到屈服后,应力趋于某一稳定值。 |
| 扭转角度/(°/m) | 60%屈服应力值 1.8 | 初次发生屈服 3 | 自身允许最大扭转角度 11 | 第二次发生屈服 17.4 | 扭转速度越快,各层应力随时间增长速度越快,越早进入塑性阶段。 |
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