Article(id=1320037586542899594, tenantId=1146029695717560320, journalId=1316781260334530699, issueId=1320037524588839497, articleNumber=null, orderNo=null, doi=10.3969/j.issn.1005-0329.2026.02.010, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1765900800000, receivedDateStr=2025-12-17, revisedDate=1768147200000, revisedDateStr=2026-01-12, acceptedDate=null, acceptedDateStr=null, onlineDate=1792651085743, onlineDateStr=2026-10-22, pubDate=1772208000000, pubDateStr=2026-02-28, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792651085743, onlineIssueDateStr=2026-10-22, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792651085743, creator=13701087609, updateTime=1792651085743, updator=13701087609, issue=Issue{id=1320037524588839497, tenantId=1146029695717560320, journalId=1316781260334530699, year='2026', volume='54', issue='2', pageStart='1', pageEnd='118', issueExtLink='null', onlineDate='null', pubDate='1772208000000', pubDateStr='2026-02-28', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1792651070972, creator='13701087609', updateTime=1792656210354, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext={EN=IssueExt(id=1320059080773850045, tenantId=1146029695717560320, journalId=1316781260334530699, issueId=1320037524588839497, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1320059080773850046, tenantId=1146029695717560320, journalId=1316781260334530699, issueId=1320037524588839497, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null, downloadFileDto=null}, startPage=87, endPage=99, ext={EN=ArticleExt(id=1320037586719060363, articleId=1320037586542899594, tenantId=1146029695717560320, journalId=1316781260334530699, language=EN, title=Research progress on hydrodynamic lubrication of fluid dynamic pressure wavy‑tilt‑dam mechanical face seals for nuclear main pumps, columnId=null, journalTitle=Fluid Machinery, columnName=null, runingTitle=null, highlight=null, articleAbstract=
The fluid dynamic pressure wavy‑tilt‑dam mechanical face seal has become a key component ensuring the long‑term stable operation of nuclear main pumps due to its controllable leakage,stable performance,and high reliability.This paper systematically reviews the research progress of fluid dynamic pressure wavy‑tilt‑dam mechanical seals for nuclear main pumps both domestically and internationally.Although relevant research in China started relatively late,driven by the national nuclear power development strategy,domestic research has achieved a transition from following to running in parallel with international efforts.Concurrently,advancements in computational technology have deepened the study of seal friction and lubrication theory.At present,theoretical models for wavy‑tilt‑dam face seals primarily focus on three major subjects:the fluid characteristics of the liquid film,the fluid‑structure interaction between the seal face and the liquid film,and the interaction between the seal ring and the fluid medium.The research paradigm is expanding from single‑physics‑field analysis to multi‑physics‑field coupling simulations.Existing research has been reviewed and summarized from three core perspectives:the design of the fluid film wavy shape,the mechanism of hydrodynamic lubrication,and the collaborative deformation of friction pair components.On this basis,optimization suggestions for future research are proposed:establishing a composite topography fluid film model incorporating roughness and wavy‑tilt‑dam characteristics;developing a hydrodynamic lubrication theory applicable to the coexistence of mixed lubrication and hydrodynamic lubrication;and conducting in‑depth research on the multi‑component collaborative deformation laws specific to nuclear main pump operating conditions,aiming to provide theoretical references for the design and engineering application of high‑performance seals.
, authors=Baojun ZHANG
1, 2, Sihang LIU
1, Taihe LIANG
1, Junqing AN
1, Mingkai LEI
1, authorsList=Baojun ZHANG, Sihang LIU, Taihe LIANG, Junqing AN, Mingkai LEI, authorCompany=null, correspAuthors=Mingkai LEI, 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=1320037588354838940, articleId=1320037586542899594, tenantId=1146029695717560320, journalId=1316781260334530699, language=CN, title=核主泵流体动压波度端面机械密封动力润滑研究进展, columnId=1317484296202474195, journalTitle=流体机械, columnName=技术进展, runingTitle=null, highlight=null, articleAbstract=
流体动压波度端面机械密封因其可控泄漏、性能稳定与高可靠性,已成为保障核主泵长期稳定运行的关键部件。本文系统综述了国内外核主泵流体动压波度端面机械密封的研究进展。我国相关研究虽然起步相对较晚,但在国家核电发展战略的推动下,国内研究实现了从追赶至并跑的转变,同时计算技术的进步也深化了密封摩擦润滑理论的研究。目前,波度端面密封的理论模型主要集中于三大对象:液膜流体特性、密封端面与液膜的流固耦合作用,以及密封环与介质流体的相互作用;其研究范式正从单一物理场分析向多物理场耦合模拟拓展。从流体膜波度形状设计、流动力润滑机理以及摩擦副组件协同变形三个核心方向,对现有研究进行了梳理与总结。在此基础上,提出未来研究的优化建议:建立融合粗糙度与波锥特征的复合形貌流体膜模型;发展适用于混合润滑与动压润滑共存区域的动力润滑理论;深入开展针对核主泵工况的多组件协同变形规律研究,以期为高性能密封的设计与工程应用提供理论参考。
, authors=张宝君
1, 2, 刘思航
1, 梁泰贺
1, 安俊卿
1, 雷明凯
1, authorsList=张宝君, 刘思航, 梁泰贺, 安俊卿, 雷明凯, authorCompany=null, correspAuthors=雷明凯, authorNote=
张宝君(1983),男,博士,高级工程师,主要从事机械密封理论、工程技术创新及应用方面的研究工作,通信地址:116024辽宁省大连市甘井子区凌工路2号大连理工大学材料科学与工程学院表面工程实验室,E-mail:baojun_z@mail.dlut.edu.cn。
, correspAuthorsNote=
雷明凯(1963),男,教授,博士生导师,主要研究方向为工程表面加工与评价,通信地址:116024辽宁省大连市甘井子区凌工路2号大连理工大学材料科学与工程学院表面工程实验室,E-mail:
mklei@dlut.edu.cn。
, 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互联网进行网络出版或提供信息服务。, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=EO8q3gcUAZ/5R7xzvXcoTQ==, magXml=tXkUUDZGbKtJfdtRViiFbA==, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=QR34JiLhYTK+OsoX55AfSA==, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=gAv5QowSvrj8pcc+p7MN1g==, mapNumber=null, fund=null)}, authors=[Author(id=1320037588778463652, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037586542899594, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=baojun_z@mail.dlut.edu.cn, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1320037588862349735, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037586542899594, authorId=1320037588778463652, language=EN, stringName=Baojun ZHANG, firstName=Baojun, middleName=null, lastName=ZHANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, address=
1Surface Engineering Laboratory,School of Materials Science and Engineering,Dalian University of Technology,Dalian 116024,China
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1大连理工大学 材料科学与工程学院 表面工程实验室,辽宁 大连 116024
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张宝君(1983),男,博士,高级工程师,主要从事机械密封理论、工程技术创新及应用方面的研究工作,通信地址:116024辽宁省大连市甘井子区凌工路2号大连理工大学材料科学与工程学院表面工程实验室,E-mail:baojun_z@mail.dlut.edu.cn。
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张宝君(1983),男,博士,高级工程师,主要从事机械密封理论、工程技术创新及应用方面的研究工作,通信地址:116024辽宁省大连市甘井子区凌工路2号大连理工大学材料科学与工程学院表面工程实验室,E-mail:baojun_z@mail.dlut.edu.cn。
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Structure of a shaft‑seal‑type nuclear main pump andits hydrostatic seal configuration, figureFileSmall=Wy2w7ccceNN9dTN6EZ6KkQ==, figureFileBig=QR34JiLhYTK+OsoX55AfSA==, tableContent=null), ArticleFig(id=1320037592507199944, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037586542899594, language=CN, label=图1, caption=
某轴封型核主泵结构及流体静压密封结构, figureFileSmall=Wy2w7ccceNN9dTN6EZ6KkQ==, figureFileBig=QR34JiLhYTK+OsoX55AfSA==, tableContent=null), ArticleFig(id=1320037592700137929, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037586542899594, language=EN, label=Fig.2, caption=
Structure of a shaft‑seal‑type nuclear main pump andits hydrodynamic seal configuration, figureFileSmall=WonC96M52dU5+CkOtmUSRw==, figureFileBig=tMh0/ThZbZaqzwVUINZKmA==, tableContent=null), ArticleFig(id=1320037592771441098, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037586542899594, language=CN, label=图2, caption=
某轴封型核主泵结构及流体动压密封结构, figureFileSmall=WonC96M52dU5+CkOtmUSRw==, figureFileBig=tMh0/ThZbZaqzwVUINZKmA==, tableContent=null), ArticleFig(id=1320037592834355659, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037586542899594, language=EN, label=Fig.3, caption=
Hydrodynamic seal structure of a nuclear main pumpand the shape of the deep grooves, figureFileSmall=pPxASqSWIsRKW+ZfRIjQmQ==, figureFileBig=pxrEDyFAMui/cVkjFyqorg==, tableContent=null), ArticleFig(id=1320037592914047436, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037586542899594, language=CN, label=图3, caption=
核主泵动压密封结构及深槽形状, figureFileSmall=pPxASqSWIsRKW+ZfRIjQmQ==, figureFileBig=pxrEDyFAMui/cVkjFyqorg==, tableContent=null), ArticleFig(id=1320037592985350605, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037586542899594, language=EN, label=Fig.4, caption=
Schematic of a hydrodynamic wavy‑tilt‑dam shallowgroove seal for a nuclear main pump, figureFileSmall=yaMDC4lZuggE3ihdJ03AYQ==, figureFileBig=adWE4Ftjiuj3EUoDvApGPg==, tableContent=null), ArticleFig(id=1320037593048265166, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037586542899594, language=CN, label=图4, caption=
核主泵动压波度浅槽密封示意, figureFileSmall=yaMDC4lZuggE3ihdJ03AYQ==, figureFileBig=adWE4Ftjiuj3EUoDvApGPg==, tableContent=null), ArticleFig(id=1320037593119568335, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037586542899594, language=EN, label=Fig.5, caption=
Schematic of the wavy‑tilt‑dam groove structure, figureFileSmall=jYVdO+v4b5c+N/VU/ruIgQ==, figureFileBig=hwgQ4T1lKx8PeCn22lpmwg==, tableContent=null), ArticleFig(id=1320037593199260112, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037586542899594, language=CN, label=图5, caption=
波度槽结构示意, figureFileSmall=jYVdO+v4b5c+N/VU/ruIgQ==, figureFileBig=hwgQ4T1lKx8PeCn22lpmwg==, tableContent=null), ArticleFig(id=1320037593295729105, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037586542899594, language=EN, label=Fig.6, caption=
Hydrodynamic lubrication model, figureFileSmall=8ScxC2gT17wZpCduo0DzXA==, figureFileBig=GjhrnMFWJpZshfGREIvQhA==, tableContent=null), ArticleFig(id=1320037593367032274, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037586542899594, language=CN, label=图6, caption=
流体动力润滑模型, figureFileSmall=8ScxC2gT17wZpCduo0DzXA==, figureFileBig=GjhrnMFWJpZshfGREIvQhA==, tableContent=null), ArticleFig(id=1320037593434141139, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037586542899594, language=EN, label=Fig.7, caption=
Structure of the friction pair components, figureFileSmall=0rHGQHLd0lMezg4TPgKWkA==, figureFileBig=PZnH8rM/7uBeEsWio4hNmQ==, tableContent=null), ArticleFig(id=1320037595120251348, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037586542899594, language=CN, label=图7, caption=
摩擦副组件结构, figureFileSmall=0rHGQHLd0lMezg4TPgKWkA==, figureFileBig=PZnH8rM/7uBeEsWio4hNmQ==, tableContent=null), ArticleFig(id=1320037595246080469, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037586542899594, language=EN, label=Fig.8, caption=
Coupling model of the mechanical seal, figureFileSmall=fc/uG4C/727d7ed5/SmWyw==, figureFileBig=dVLc9B1FfU5WRsgyIu+/mQ==, tableContent=null), ArticleFig(id=1320037595321577942, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037586542899594, language=CN, label=图8, caption=
机械密封耦合模型, figureFileSmall=fc/uG4C/727d7ed5/SmWyw==, figureFileBig=dVLc9B1FfU5WRsgyIu+/mQ==, tableContent=null), ArticleFig(id=1320037595392881111, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037586542899594, language=EN, label=Tab.1, caption=
Research subjects,models and content of hydrodynamic wavy‑tilt‑dam seals
, figureFileSmall=null, figureFileBig=null, tableContent=
| 研究对象 | 关系 | 理论模型 | 研究内容 | 属性 |
|---|
| 流体膜波度形状 | 波形几何 形状 | 波度膜厚方程 | (1)波度结构尺寸参数对密封性能的影响;(2)坝面比:影响密封泄漏;(3)波幅幅值[27]:动压效应的强弱;(4)波锥比[28]:影响动静压效应的占比;(5)波数量:动压效应随着数量增大而增大 | (1)描述波度液膜几何形状;(2)波幅幅值与液膜厚度都处于微米量级;(3)端面波-锥复合形貌特征;(4)忽略端面初始形貌特征的复合影响 |
| 流体动力润滑 | 液膜流体 | 流体动力润滑 (包含:液膜流场) | (1)端面间隙内液膜流体的力学特性以及密封性能[29];(2)Reynolds空化边界[28];(3)Jacobson-Floberg-Olsson(JFO)空化边界[30-32] | (1)考虑空化效应的流体润滑力学特性;(2)获得性能指标:最小液膜厚度、膜压分布、开启力、扭矩、功率和泄漏量等 |
| 密封端面与液膜流体 | 弹-流动力润滑 (包含:液膜流场和端面弹性变形[33]) | (1)端面与液膜流体压力的相互作用,端面变形对密封性能的影响;(2)膜压作用于密封端面,使得密封端面产生变形,改变了液膜形状,导致流体润滑力学特性发生改变;(3)压力变形减弱空化效应、减弱动压效应、提升静压效应 | (1)软对硬配对的摩擦副,如石墨对硬质合金等;(2)表面具有软质复合涂层配副材料,如聚合物涂层对硬质合金涂层等;(3)忽略端面流体温度和传热影响 |
热-流动力润滑 (包含:液膜流场、液膜温度场和密封环温度场) | (1)端面与液膜流体黏性剪切、流体温度的相互作用,端面流体的温-黏效应和相变对密封性能的影响;(2)温度引起黏度变化,高黏度增强动压效应,低黏度降低动压效应[34];(3)温度引起相变,产生汽液两相,降低端面开启力及稳定性[35] | (1)黏度随温度变化较大的液膜流体;(2)易汽化的两相液膜流体;(3)端面不易受到弹性变形影响的硬对硬配对摩擦副材料,如硅化石墨对硅化石墨等;(4)忽略端面热-力机械变形影响 |
| 热-弹-流动力润滑(包含:液膜流场、液膜温度场、密封环温度场和端面热-弹变形[30]) | (1)端面与液膜流体压力、温度的相互作用,端面的热弹变形、流体的温-黏效应对密封性能的影响;(2)端面热-力变形、流体的温-黏效应综合影响分析 | (1)密封结构简单,密封环强度大,不易变形;(2)工况压力低,不考虑环体的变形影响;(3)忽略环体的热-力变形影响 |
| 密封变形 | 密封环与介质流体、密封端面与液膜流体的相互作用 | 流-固耦合 (包含:液膜流场、端面弹性变形和密封环力变形[36]) | (1)密封环体与介质流体压力的相互作用,环体的力变形、端面变形共同对密封性能的影响;(2)介质压力作用于密封环周向非对称结构,端面产生周向波度变形;(3)介质压力作用于密封的环产生弯扭变形,端面产生径向发散锥度 | (1)温度对流体特性影响小;(2)软对硬配对的摩擦副,如石墨对硬质合金等、石墨对硬质合金涂层;(3)扩展具有动/静环座的多组件摩擦副结构;(4)忽略温度引起密封变形、传热影响 |
流-热耦合 (包含:液膜流场、液膜温度场和密封环温度场[37]) | (1)密封环体与介质流体温度的相互作用,环体的热变形、流体热作用共同对密封性能的影响;(2)温度引起黏度变化,高黏度增强动压效应,低黏度降低动压效应;(3)介质温度作用于环的周向非对称结构,密封端面产生周向波度变形;(4)密封环的温度场梯度分布,引起密封环产生弯扭变形,端面形成径向锥度变形 | (1)温度对流体特性影响大;(2)摩擦功耗高、端面温度高,用于汽液两相态分析;(3)忽略压力引起密封的变形影响 |
流-固-热耦合 (包含:液膜流场、液膜温度场、端面热-弹变形和密封环热-力变形) | (1)密封环体与介质流体压力、温度的相互作用,环体的热、力变形、流体热作用共同对密封性能的影响[38];(2)热-力引起的密封端面变形;(3)热-力引起的密封环耦合变形[39-40];(4)流体的温-黏效应综合影响分析 | (1)非接触动压润滑;(2)摩擦副部件:动环和静环;(3)未考虑端面接触及多组件协同变形影响 |
| 密封组件系统与介质流体、密封端面与液膜流体的相互作用,并考虑动力学影响 | 流-固-热-动耦合 (包含:液膜流场、液膜温度场、端面热-弹变形和密封环热-力变形、密封组件系统动力学影响) | 密封环体与介质流体压力、温度的相互作用,环体的热、力变形、流体热作用、考虑副密封作用,并与动力学耦合,研究对密封性能及稳定性影响[41] | (1)密封系统组件复杂多场耦合;(2)考虑副密封的作用对密封性能的影响;(3)扰动载荷对密封性能的稳定性影响 |
), ArticleFig(id=1320037595493544408, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037586542899594, language=CN, label=表1, caption=
动压波度密封的研究对象、模型和内容
, figureFileSmall=null, figureFileBig=null, tableContent=
| 研究对象 | 关系 | 理论模型 | 研究内容 | 属性 |
|---|
| 流体膜波度形状 | 波形几何 形状 | 波度膜厚方程 | (1)波度结构尺寸参数对密封性能的影响;(2)坝面比:影响密封泄漏;(3)波幅幅值[27]:动压效应的强弱;(4)波锥比[28]:影响动静压效应的占比;(5)波数量:动压效应随着数量增大而增大 | (1)描述波度液膜几何形状;(2)波幅幅值与液膜厚度都处于微米量级;(3)端面波-锥复合形貌特征;(4)忽略端面初始形貌特征的复合影响 |
| 流体动力润滑 | 液膜流体 | 流体动力润滑 (包含:液膜流场) | (1)端面间隙内液膜流体的力学特性以及密封性能[29];(2)Reynolds空化边界[28];(3)Jacobson-Floberg-Olsson(JFO)空化边界[30-32] | (1)考虑空化效应的流体润滑力学特性;(2)获得性能指标:最小液膜厚度、膜压分布、开启力、扭矩、功率和泄漏量等 |
| 密封端面与液膜流体 | 弹-流动力润滑 (包含:液膜流场和端面弹性变形[33]) | (1)端面与液膜流体压力的相互作用,端面变形对密封性能的影响;(2)膜压作用于密封端面,使得密封端面产生变形,改变了液膜形状,导致流体润滑力学特性发生改变;(3)压力变形减弱空化效应、减弱动压效应、提升静压效应 | (1)软对硬配对的摩擦副,如石墨对硬质合金等;(2)表面具有软质复合涂层配副材料,如聚合物涂层对硬质合金涂层等;(3)忽略端面流体温度和传热影响 |
热-流动力润滑 (包含:液膜流场、液膜温度场和密封环温度场) | (1)端面与液膜流体黏性剪切、流体温度的相互作用,端面流体的温-黏效应和相变对密封性能的影响;(2)温度引起黏度变化,高黏度增强动压效应,低黏度降低动压效应[34];(3)温度引起相变,产生汽液两相,降低端面开启力及稳定性[35] | (1)黏度随温度变化较大的液膜流体;(2)易汽化的两相液膜流体;(3)端面不易受到弹性变形影响的硬对硬配对摩擦副材料,如硅化石墨对硅化石墨等;(4)忽略端面热-力机械变形影响 |
| 热-弹-流动力润滑(包含:液膜流场、液膜温度场、密封环温度场和端面热-弹变形[30]) | (1)端面与液膜流体压力、温度的相互作用,端面的热弹变形、流体的温-黏效应对密封性能的影响;(2)端面热-力变形、流体的温-黏效应综合影响分析 | (1)密封结构简单,密封环强度大,不易变形;(2)工况压力低,不考虑环体的变形影响;(3)忽略环体的热-力变形影响 |
| 密封变形 | 密封环与介质流体、密封端面与液膜流体的相互作用 | 流-固耦合 (包含:液膜流场、端面弹性变形和密封环力变形[36]) | (1)密封环体与介质流体压力的相互作用,环体的力变形、端面变形共同对密封性能的影响;(2)介质压力作用于密封环周向非对称结构,端面产生周向波度变形;(3)介质压力作用于密封的环产生弯扭变形,端面产生径向发散锥度 | (1)温度对流体特性影响小;(2)软对硬配对的摩擦副,如石墨对硬质合金等、石墨对硬质合金涂层;(3)扩展具有动/静环座的多组件摩擦副结构;(4)忽略温度引起密封变形、传热影响 |
流-热耦合 (包含:液膜流场、液膜温度场和密封环温度场[37]) | (1)密封环体与介质流体温度的相互作用,环体的热变形、流体热作用共同对密封性能的影响;(2)温度引起黏度变化,高黏度增强动压效应,低黏度降低动压效应;(3)介质温度作用于环的周向非对称结构,密封端面产生周向波度变形;(4)密封环的温度场梯度分布,引起密封环产生弯扭变形,端面形成径向锥度变形 | (1)温度对流体特性影响大;(2)摩擦功耗高、端面温度高,用于汽液两相态分析;(3)忽略压力引起密封的变形影响 |
流-固-热耦合 (包含:液膜流场、液膜温度场、端面热-弹变形和密封环热-力变形) | (1)密封环体与介质流体压力、温度的相互作用,环体的热、力变形、流体热作用共同对密封性能的影响[38];(2)热-力引起的密封端面变形;(3)热-力引起的密封环耦合变形[39-40];(4)流体的温-黏效应综合影响分析 | (1)非接触动压润滑;(2)摩擦副部件:动环和静环;(3)未考虑端面接触及多组件协同变形影响 |
| 密封组件系统与介质流体、密封端面与液膜流体的相互作用,并考虑动力学影响 | 流-固-热-动耦合 (包含:液膜流场、液膜温度场、端面热-弹变形和密封环热-力变形、密封组件系统动力学影响) | 密封环体与介质流体压力、温度的相互作用,环体的热、力变形、流体热作用、考虑副密封作用,并与动力学耦合,研究对密封性能及稳定性影响[41] | (1)密封系统组件复杂多场耦合;(2)考虑副密封的作用对密封性能的影响;(3)扰动载荷对密封性能的稳定性影响 |
), ArticleFig(id=1320037595615179225, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037586542899594, language=EN, label=Tab.2, caption=
Comparative analysis of the characteristics of three types of wavy‑tilt‑dam grooves
, figureFileSmall=null, figureFileBig=null, tableContent=
| 波形特征 | 剖面结构 | 膜厚公式 | 特点分析 | 时间 |
|---|
| 周向波度、波峰平面、波峰与坝区等高、波谷锥度为不等倾锥度(余弦函数曲线) | 图5(b) | 式(2) | (1)具有动压效应和静压效应;(2)正常工况下,动/静压效应;(3)高压工况下,静压效应占主导 | 1989[27] |
| 周向波度、波峰锥度、波峰与坝区不等高、峰谷锥度为不等倾锥度(余弦函数曲线) | 图5(c) | 式(3) | (1)动压效应减弱、静压效应增强;(2)正常工况下,动/静压效应;(3)高压工况下,静压效应占主导 | 2010[28] |
| 周向波度、波峰锥度、波峰与坝区不等高、峰谷锥度为等倾锥度(内外相切圆弧曲线) | 图5(d) | 式(4) | (1)动压、静压效应比例可调;(2)正常工况下,动/静压效应 | 2026[41] |
), ArticleFig(id=1320037595694871002, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1320037586542899594, language=CN, label=表2, caption=
3种波度槽的特征对比分析
, figureFileSmall=null, figureFileBig=null, tableContent=
| 波形特征 | 剖面结构 | 膜厚公式 | 特点分析 | 时间 |
|---|
| 周向波度、波峰平面、波峰与坝区等高、波谷锥度为不等倾锥度(余弦函数曲线) | 图5(b) | 式(2) | (1)具有动压效应和静压效应;(2)正常工况下,动/静压效应;(3)高压工况下,静压效应占主导 | 1989[27] |
| 周向波度、波峰锥度、波峰与坝区不等高、峰谷锥度为不等倾锥度(余弦函数曲线) | 图5(c) | 式(3) | (1)动压效应减弱、静压效应增强;(2)正常工况下,动/静压效应;(3)高压工况下,静压效应占主导 | 2010[28] |
| 周向波度、波峰锥度、波峰与坝区不等高、峰谷锥度为等倾锥度(内外相切圆弧曲线) | 图5(d) | 式(4) | (1)动压、静压效应比例可调;(2)正常工况下,动/静压效应 | 2026[41] |
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