Article(id=1324426254178460437, tenantId=1146029695717560320, journalId=1240685776644648972, issueId=1324426184037114137, articleNumber=null, orderNo=null, doi=10.3969/j.issn.1007-7294.2026.08.006, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1771948800000, receivedDateStr=2026-02-25, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793697425645, onlineDateStr=2026-11-03, pubDate=1786723200000, pubDateStr=2026-08-15, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793697425645, onlineIssueDateStr=2026-11-03, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793697425645, creator=13701087609, updateTime=1793697425645, updator=13701087609, issue=Issue{id=1324426184037114137, tenantId=1146029695717560320, journalId=1240685776644648972, year='2026', volume='30', issue='8', pageStart='1221', pageEnd='1396', issueExtLink='null', onlineDate='null', pubDate='1786723200000', pubDateStr='2026-08-15', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793697408922, creator='13701087609', updateTime=1793697408922, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=1279, endPage=1293, ext={EN=ArticleExt(id=1324426254446895894, articleId=1324426254178460437, tenantId=1146029695717560320, journalId=1240685776644648972, language=EN, title=Vibration stability characteristics of vertical lifting pipelines for deep-sea coarse ore, columnId=1241023037940748650, journalTitle=Journal of Ship Mechanics, columnName=Hydrodynamics, runingTitle=null, highlight=null, articleAbstract=
First, based on the modified Hamiltonian principle, the nonlinear dynamic control equation of the deep-sea coarse-grained ore vertical lifting pipeline system was established. Then, the equation was discretized using the Galerkin method, converting the partial differential equation into a system of ordinary differential equations. Finally, numerical solutions were obtained for the stability characteristics of the pipeline using the eigenvalue method and Newton-Raphson iteration method. The system analyzed the influence of four key dimensionless parameters, namely the particle feed concentration, terminal lumped mass, gravity coefficient of the pipeline, and fluid velocity, on the critical flow velocity of the structure. Results show that when the feed concentration is Cv is 0.1, Hopf bifurcations occur only in the first three modes. When the feed concentration increases to Cv = 0.3, a Hopf bifurcation also occurs in the fourth mode, and the minimum critical flow velocity ucr decreases significantly. When the internal flow velocity is below the critical value, the imaginary parts of the complex eigenfrequencies remain positive, indicating decaying structural vibrations. Once the internal flow velocity exceeds the critical threshold, the imaginary part of the first complex eigenfrequency becomes negative, signifying flutter instability. When the gravity coefficient α is held constantly, the critical flow velocity ucr increases progressively with the dimensionless terminal mass κ5. Conversely, with fixed κ5, an increase in the gravity coefficient leads to a significant rise in critical flow velocity, exhibiting an approximately parabolic growth trend.
, authors=Yun GAO
1, 2, Xiao-dong CHEN
1, Lei ZHANG
1, Zheng-yang QI
1, authorsList=Yun GAO, Xiao-dong CHEN, Lei ZHANG, Zheng-yang QI, authorCompany=null, correspAuthors=null, 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=1324426272306242461, articleId=1324426254178460437, tenantId=1146029695717560320, journalId=1240685776644648972, language=CN, title=深海粗颗粒矿石垂直提升管道振动稳定性特征研究, columnId=1241023038087549292, journalTitle=船舶力学, columnName=流体力学, runingTitle=null, highlight=null, articleAbstract=
本文基于修正的哈密顿原理,建立了深海粗颗粒矿石垂直提升管道系统的非线性动力学控制方程;随后通过Galerkin方法对方程进行离散,将偏微分方程转化为一系列常微分方程构成的方程组;最后利用特征值法以及Newton-Raphson迭代法对管道的稳定性特征进行了数值求解。系统分析了颗粒进料浓度、末端集中质量块、管道质量以及液相速度这四个关键无量纲参数对结构临界流速的影响。研究结果表明,当进料浓度Cv=0.1时,结构仅在前三阶模态发生Hopf分岔,失稳集中于这三阶模态;当进料浓度增加到Cv=0.3时,第四阶模态也发生Hopf分岔,且最小临界流速ucr显著降低。当内流速度小于临界速度时,系统复特征频率虚部均为正值,结构振动形式表现为衰减振动;当内流速度大于临界速度时,系统的一阶复特征频率虚部会出现负值,结构振动呈现颤振失稳。当管道质量α保持不变时,系统临界流速ucr随无量纲末端质量κ5的增大而逐渐上升;当 κ5保持不变时,随着管道质量α的增大,临界流速显著升高,呈现近似抛物线的增长趋势。
, authors=高云
1, 2, 陈晓东
1, 张磊
1, 齐正杨
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1哈尔滨工业大学(威海) 海洋工程学院,山东 威海 264209
2上海交通大学 海洋工程全国重点实验室,上海 200240, bio={"content":"
高 云(1985–),男,副教授,博士生导师,通讯作者,E-mail:gaoyun@hit.edu.cn
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Schematic diagram of hydraulic lift mining system, figureFileSmall=g/O85lIYp8THQVTmUHxHHg==, figureFileBig=c1HHnEI68/ldG0mxhoJ4yg==, tableContent=null), ArticleFig(id=1324426650569552840, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324426254178460437, language=CN, label=图1, caption=
水力提升式采矿系统示意图, figureFileSmall=g/O85lIYp8THQVTmUHxHHg==, figureFileBig=c1HHnEI68/ldG0mxhoJ4yg==, tableContent=null), ArticleFig(id=1324426650661827529, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324426254178460437, language=EN, label=Fig.2, caption=
Schematic diagram of the vertical lifting pipeline for solid-liquid two-phase flow under still water, figureFileSmall=AH5XVWgm9DTRff3O683Jzg==, figureFileBig=5rtSs1JzvjvZ9h6MMx+lwQ==, tableContent=null), ArticleFig(id=1324426650720547786, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324426254178460437, language=CN, label=图2, caption=
静水下固液两相流垂直提升管道示意图, figureFileSmall=AH5XVWgm9DTRff3O683Jzg==, figureFileBig=5rtSs1JzvjvZ9h6MMx+lwQ==, tableContent=null), ArticleFig(id=1324426650791850955, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324426254178460437, language=EN, label=Fig.3, caption=
Argand diagram of the complex eigenvalues for different truncated modes, figureFileSmall=Iya4WyZmhHkfqFZ5o7CKHA==, figureFileBig=R5GjYiuJH50KKDz7Pu+BVg==, tableContent=null), ArticleFig(id=1324426650846376908, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324426254178460437, language=CN, label=图3, caption=
不同截断模态复特征值Argand图, figureFileSmall=Iya4WyZmhHkfqFZ5o7CKHA==, figureFileBig=R5GjYiuJH50KKDz7Pu+BVg==, tableContent=null), ArticleFig(id=1324426650926068685, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324426254178460437, language=EN, label=Fig.4, caption=
Critical flow verification curve of cantilever pipe under additional mass, figureFileSmall=7EeqqqZ5GUbUNg/HjxK9LA==, figureFileBig=ohwNhnupXeex1AF9oW+WZA==, tableContent=null), ArticleFig(id=1324426650993177550, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324426254178460437, language=CN, label=图4, caption=
附加质量下悬臂管的临界流验证曲线, figureFileSmall=7EeqqqZ5GUbUNg/HjxK9LA==, figureFileBig=ohwNhnupXeex1AF9oW+WZA==, tableContent=null), ArticleFig(id=1324426651060286415, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324426254178460437, language=EN, label=Fig.5, caption=
Characteristic curves of the slip ratio and local concentration versus internal flow velocity at different feed concentrations, figureFileSmall=lklRaNPCKMbHSL4Fj6WbDg==, figureFileBig=butunQXJAdQ5nJ3chGYaJA==, tableContent=null), ArticleFig(id=1324426651144172496, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324426254178460437, language=CN, label=图5, caption=
在不同进料浓度下滑移比及局部浓度随内部流速变化特征曲线, figureFileSmall=lklRaNPCKMbHSL4Fj6WbDg==, figureFileBig=butunQXJAdQ5nJ3chGYaJA==, tableContent=null), ArticleFig(id=1324426651202892753, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324426254178460437, language=EN, label=Fig.6, caption=
Variation of the complex natural frequency of the pipeline with internal flow velocity, figureFileSmall=auIUXA9StziAp2sqEwecrQ==, figureFileBig=8wOsYsH+rdb5El/k+M+0ew==, tableContent=null), ArticleFig(id=1324426651265807314, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324426254178460437, language=CN, label=图6, caption=
管道复特征频率随内部流速变化特性, figureFileSmall=auIUXA9StziAp2sqEwecrQ==, figureFileBig=8wOsYsH+rdb5El/k+M+0ew==, tableContent=null), ArticleFig(id=1324426651332916179, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324426254178460437, language=EN, label=Fig.7, caption=
Vibration time-history curve at the free end of the structure, figureFileSmall=WQAC3/6MoKz8fKNZYzO5yg==, figureFileBig=sKv+Vp0h2iLnt5efuEDdlA==, tableContent=null), ArticleFig(id=1324426651404219348, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324426254178460437, language=CN, label=图7, caption=
管道末端振动时间历程曲线, figureFileSmall=WQAC3/6MoKz8fKNZYzO5yg==, figureFileBig=sKv+Vp0h2iLnt5efuEDdlA==, tableContent=null), ArticleFig(id=1324426651475522517, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324426254178460437, language=EN, label=Fig.8, caption=
Critical flow velocities versus dimensionless pipe mass ratio α under four specified dimensionless end mass parameters, figureFileSmall=i3pTyEm5vPCEukQNk0BGPA==, figureFileBig=/p37w+XhtLYjKhWjIVY/BA==, tableContent=null), ArticleFig(id=1324426651551019990, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324426254178460437, language=CN, label=图8, caption=
在四种不同无量纲端部质量下失稳临界速度随无量纲管道质量α的变化, figureFileSmall=i3pTyEm5vPCEukQNk0BGPA==, figureFileBig=/p37w+XhtLYjKhWjIVY/BA==, tableContent=null), ArticleFig(id=1324426651664266199, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324426254178460437, language=EN, label=Tab.1, caption=
Parameters of system
, figureFileSmall=null, figureFileBig=null, tableContent=
| 量纲参数(单位) | 值 | 无量纲参数(单位) | 值 |
| 杨氏模量E/pa | 2.1×1011 | 附加质量系数Ca | 1.0 |
| 管道长度L/m | 50 | 固体颗粒阻力系数CDs | 0.9 |
| 管道外径D/m | 0.24 | 线性阻尼系数A1 | 27000 |
| 管道内径d/m | 0.21 | 非线性阻尼系数A2 | 0.24 |
| 固体颗粒直径ds/m | 0.1d | | |
| 管道密度ρp/(kg·m−3) | 7800 | | |
| 内部流体密度ρf/(kg·m−3) | 1020 | | |
| 内部固体密度ρs/(kg·m−3) | 3500 | | |
| 末端集中块质量me/kg | 1000 | | | |
), ArticleFig(id=1324426651731375064, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324426254178460437, language=CN, label=表1, caption=
系统参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 量纲参数(单位) | 值 | 无量纲参数(单位) | 值 |
| 杨氏模量E/pa | 2.1×1011 | 附加质量系数Ca | 1.0 |
| 管道长度L/m | 50 | 固体颗粒阻力系数CDs | 0.9 |
| 管道外径D/m | 0.24 | 线性阻尼系数A1 | 27000 |
| 管道内径d/m | 0.21 | 非线性阻尼系数A2 | 0.24 |
| 固体颗粒直径ds/m | 0.1d | | |
| 管道密度ρp/(kg·m−3) | 7800 | | |
| 内部流体密度ρf/(kg·m−3) | 1020 | | |
| 内部固体密度ρs/(kg·m−3) | 3500 | | |
| 末端集中块质量me/kg | 1000 | | | |
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