Article(id=1319293538634945282, tenantId=1146029695717560320, journalId=1316781260334530699, issueId=1319293383915454866, articleNumber=null, orderNo=null, doi=10.3969/j.issn.1005-0329.2025.09.013, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1733155200000, receivedDateStr=2024-12-03, revisedDate=1753372800000, revisedDateStr=2025-07-25, acceptedDate=null, acceptedDateStr=null, onlineDate=1792473690899, onlineDateStr=2026-10-20, pubDate=1759161600000, pubDateStr=2025-09-30, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792473690899, onlineIssueDateStr=2026-10-20, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792473690899, creator=13701087609, updateTime=1792473690899, updator=13701087609, issue=Issue{id=1319293383915454866, tenantId=1146029695717560320, journalId=1316781260334530699, year='2025', volume='53', issue='9', pageStart='1', pageEnd='118', issueExtLink='null', onlineDate='null', pubDate='1759161600000', pubDateStr='2025-09-30', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1792473654011, creator='13701087609', updateTime=1792473654011, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=95, endPage=103, ext={EN=ArticleExt(id=1319293538785940227, articleId=1319293538634945282, tenantId=1146029695717560320, journalId=1316781260334530699, language=EN, title=Research on leakage prediction of metal sealing ring based on statistical characteristics, columnId=null, journalTitle=Fluid Machinery, columnName=null, runingTitle=null, highlight=null, articleAbstract=
Aiming at the issue of insufficient accuracy in leakage prediction for metal sealing rings,which leads to increased R&D costs,a leakage prediction method based on statistical characteristics is proposed.The surfaces of C‑shaped metal sealing rings made of two materials (GH4169 and GH738) after grinding and polishing were scanned using a laser confocal microscope to obtain their micro‑anisotropic surface morphology.Based on statistical methods,an anisotropic rough surface model was constructed.This model was combined with finite element analysis and computational fluid dynamics to predict the leakage rate of the sealing ring,and a study on the influencing factors was conducted.Experimental validation shows that the error between the numerically calculated leakage and the actual measured leakage is only about 10%.Under the same working conditions,when the sealing pressure difference is reduced from 0.6 MPa to 0.3 MPa,the leakage rate of the sealing ring decreases by 49.6%;when the root mean square roughness of the sealing ring surface is reduced from 1.2 μm to 0.9 μm,the leakage rate decreases by approximately 43%;when the surface contact stress increases from 0 MPa to 380 MPa,the leakage rate decreases by about 98.7%.These results indicate that the sealing performance of the ring can be improved by reducing the surface root mean square roughness,increasing the surface contact stress,and reducing the pressure difference between the inner and outer cavities.This study provides a theoretical basis for the subsequent development and evaluation of metal sealing rings.
, authors=Weiping LI
1, Hao YANG
1, Chao DENG
2, Shenlong LI
3, authorsList=Weiping LI, Hao YANG, Chao DENG, Shenlong LI, authorCompany=null, correspAuthors=null, 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=1319293543252874018, articleId=1319293538634945282, tenantId=1146029695717560320, journalId=1316781260334530699, language=CN, title=基于统计特征金属封严环泄漏量预测研究, columnId=1317484300472271469, journalTitle=流体机械, columnName=应用技术, runingTitle=null, highlight=null, articleAbstract=
针对金属封严环泄漏量预测精度不足,导致研发成本增加的问题,提出了一种基于统计特征金属封严环泄漏量预测方法。通过激光共焦距显微镜扫描2种材料(GH4169,GH738)磨削抛光加工后的C形金属封严环表面,获得其微观各向异性表面形貌,基于统计学方法构建各向异性粗糙表面,结合有限元分析与计算流体力学预测封严环泄漏量,并对其影响因素进行规律性研究。试验验证表明:数值模型计算的泄漏量与实际测量泄漏量的误差仅约为10%。相同工况条件下,当密封压差从0.6 MPa降低到0.3 MPa时,封严环泄漏率降低49.6%;当封严环表面均方根粗糙度由1.2 µm降低到0.9 µm,其泄漏率降低约43%;当封严环表面接触应力由0 MPa增大到380 MPa,其泄漏率降低约为98.7%。由此可见,通过降低表面均方根粗糙度、增大表面接触应力及减小内外腔压差能够提升封严环的密封性能。研究可为金属封严环后续研发和评估提供理论依据。
, authors=李伟平
1, 杨昊
1, 邓超
2, 李神龙
3, authorsList=李伟平, 杨昊, 邓超, 李神龙, authorCompany=null, correspAuthors=null, authorNote=
李伟平(1971),男,博士,教授,硕士研究生导师,主要从事空气动力学和航空发动机关键零部件研究工作,通信地址:411082湖南省长沙市麓山南路湖南大学机械与运载工程学院,E-mail:Lwp15200909147@163.com。
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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=WkUi3hEPybyWL6DdpUU3Ng==, magXml=8IQHawAjtRgMHih792pLEg==, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=P1TRyVIo9RdKI4jklXa8CA==, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=ZWYcn3chDC6ItAYwk/HHWA==, mapNumber=null, fund=null)}, authors=[Author(id=1319293543756190509, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293538634945282, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=Lwp15200909147@163.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1319293543827493679, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293538634945282, authorId=1319293543756190509, language=EN, stringName=Weiping LI, firstName=Weiping, middleName=null, lastName=LI, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1State Key Laboratory of Advanced Design and Manufacturing of Automobile Body,Hunan University,Changsha 411082,China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1319293543890408240, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293538634945282, authorId=1319293543756190509, language=CN, stringName=李伟平, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1湖南大学 汽车车身先进设计制造国家重点实验室,长沙 411082, bio={"content":"
李伟平(1971),男,博士,教授,硕士研究生导师,主要从事空气动力学和航空发动机关键零部件研究工作,通信地址:411082湖南省长沙市麓山南路湖南大学机械与运载工程学院,E-mail:Lwp15200909147@163.com。
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李伟平(1971),男,博士,教授,硕士研究生导师,主要从事空气动力学和航空发动机关键零部件研究工作,通信地址:411082湖南省长沙市麓山南路湖南大学机械与运载工程学院,E-mail:Lwp15200909147@163.com。
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1State Key Laboratory of Advanced Design and Manufacturing of Automobile Body,Hunan University,Changsha 411082,China), AuthorCompanyExt(id=1319293543525503781, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293538634945282, companyId=1319293543504532259, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1湖南大学 汽车车身先进设计制造国家重点实验室,长沙 411082)]), AuthorCompany(id=1319293543605195558, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293538634945282, xref=2, ext=[AuthorCompanyExt(id=1319293543613584167, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293538634945282, companyId=1319293543605195558, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2Changsha Lansheng Technology Co.,Ltd.,Changsha 410000,China), AuthorCompanyExt(id=1319293543621972776, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293538634945282, companyId=1319293543605195558, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2长沙览声科技有限公司,长沙 410000)]), AuthorCompany(id=1319293543672304425, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293538634945282, xref=3, ext=[AuthorCompanyExt(id=1319293543680693034, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293538634945282, companyId=1319293543672304425, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3China Hangfa Changjiang Power Co.,Ltd.,Yueyang 414100,China), AuthorCompanyExt(id=1319293543689081643, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293538634945282, companyId=1319293543672304425, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3中国航发长江动力有限公司,湖南 岳阳 414100)])], figs=[ArticleFig(id=1319293546985804618, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293538634945282, language=EN, label=Fig.1, caption=
Macroscopic and microscopic contact diagram of C‑shaped sealing ring seal structure, figureFileSmall=olFWGMAeVEW0PdZpZb/jIg==, figureFileBig=P1TRyVIo9RdKI4jklXa8CA==, tableContent=null), ArticleFig(id=1319293547061302091, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293538634945282, language=CN, label=图1, caption=
法兰与C形金属封严环接触示意, figureFileSmall=olFWGMAeVEW0PdZpZb/jIg==, figureFileBig=P1TRyVIo9RdKI4jklXa8CA==, tableContent=null), ArticleFig(id=1319293547262628684, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293538634945282, language=EN, label=Fig.2, caption=
Distribution of contact stress of sealing ring, figureFileSmall=5+l9CU9oR6x0giS1riYlmA==, figureFileBig=MmtEUGOQsdP2BEbiAnOkpA==, tableContent=null), ArticleFig(id=1319293547346514765, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293538634945282, language=CN, label=图2, caption=
封严环接触应力分布, figureFileSmall=5+l9CU9oR6x0giS1riYlmA==, figureFileBig=MmtEUGOQsdP2BEbiAnOkpA==, tableContent=null), ArticleFig(id=1319293547442983758, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293538634945282, language=EN, label=Fig.3, caption=
Surface morphology of metal sealing rings made, figureFileSmall=FGHE02iT7Bdg/XzBjZAqdw==, figureFileBig=ICzlHc2JEu/6myF37M4fkw==, tableContent=null), ArticleFig(id=1319293547518481231, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293538634945282, language=CN, label=图3, caption=
金属封严环表面微观形貌, figureFileSmall=FGHE02iT7Bdg/XzBjZAqdw==, figureFileBig=ICzlHc2JEu/6myF37M4fkw==, tableContent=null), ArticleFig(id=1319293547614950224, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293538634945282, language=EN, label=Fig.4, caption=
Definition diagram of autocorrelation length and texture aspect ratio, figureFileSmall=HpIoIBSprtvz7kAa0QX2VQ==, figureFileBig=k3EldDFJ54PLsx8aKbRPcg==, tableContent=null), ArticleFig(id=1319293547686253393, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293538634945282, language=CN, label=图4, caption=
自相关长度与纹理长宽比示意, figureFileSmall=HpIoIBSprtvz7kAa0QX2VQ==, figureFileBig=k3EldDFJ54PLsx8aKbRPcg==, tableContent=null), ArticleFig(id=1319293547765945170, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293538634945282, language=EN, label=Fig.5, caption=
Rough surface recomposition, figureFileSmall=VYy7YyyLjvz9YxCWhLCLCg==, figureFileBig=KlxWCU+YMAlPmEtJVFKYYg==, tableContent=null), ArticleFig(id=1319293547849831251, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293538634945282, language=CN, label=图5, caption=
粗糙面重构图, figureFileSmall=VYy7YyyLjvz9YxCWhLCLCg==, figureFileBig=KlxWCU+YMAlPmEtJVFKYYg==, tableContent=null), ArticleFig(id=1319293547925328724, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293538634945282, language=EN, label=Fig.6, caption=
Sealing gap fluid channel and boundary diagram, figureFileSmall=zAPO66Lw7v73htcGBvczMg==, figureFileBig=h1SPqlOpkulGKUUIGl4s6w==, tableContent=null), ArticleFig(id=1319293548051157845, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293538634945282, language=CN, label=图6, caption=
密封间隙流体通道及边界示意, figureFileSmall=zAPO66Lw7v73htcGBvczMg==, figureFileBig=h1SPqlOpkulGKUUIGl4s6w==, tableContent=null), ArticleFig(id=1319293548164404054, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293538634945282, language=EN, label=Fig.7, caption=
Pressure and velocity contour plots of the fluid channel, figureFileSmall=GFeTTE8IInoPhP7DdlCpOg==, figureFileBig=QX5r19U89GmP4Qig/FCGag==, tableContent=null), ArticleFig(id=1319293548239901527, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293538634945282, language=CN, label=图7, caption=
流体通道压力和速度云图, figureFileSmall=GFeTTE8IInoPhP7DdlCpOg==, figureFileBig=QX5r19U89GmP4Qig/FCGag==, tableContent=null), ArticleFig(id=1319293548319593304, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293538634945282, language=EN, label=Fig.8, caption=
Metal sealing ring leakage test equipment diagram, figureFileSmall=4IAI7WGhuz5kZV9LjFWq+Q==, figureFileBig=yft24Syy9mQ0r3Se3aEsqw==, tableContent=null), ArticleFig(id=1319293548395090777, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293538634945282, language=CN, label=图8, caption=
金属封严环泄漏试验装置, figureFileSmall=4IAI7WGhuz5kZV9LjFWq+Q==, figureFileBig=yft24Syy9mQ0r3Se3aEsqw==, tableContent=null), ArticleFig(id=1319293548478976858, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293538634945282, language=EN, label=Fig.9, caption=
Comparison of simulation and test results of different sealing rings, figureFileSmall=z6pOSXDb4Nwfwfm1PJdhIg==, figureFileBig=ZWFC0+/qmWlhW/7wiXyOnA==, tableContent=null), ArticleFig(id=1319293548546085723, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293538634945282, language=CN, label=图9, caption=
不同封严环仿真与试验结果对比, figureFileSmall=z6pOSXDb4Nwfwfm1PJdhIg==, figureFileBig=ZWFC0+/qmWlhW/7wiXyOnA==, tableContent=null), ArticleFig(id=1319293548638360412, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293538634945282, language=EN, label=Fig.10, caption=
Comparison of test and calculated values of ring model 2 under different pressure differences, figureFileSmall=pAtXPAunlPZZcBWYSUi5Tg==, figureFileBig=VcB0iWAc6bpu/jwesWPX0Q==, tableContent=null), ArticleFig(id=1319293548705469277, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293538634945282, language=CN, label=图10, caption=
不同压差下环型号2的试验与计算值对比, figureFileSmall=pAtXPAunlPZZcBWYSUi5Tg==, figureFileBig=VcB0iWAc6bpu/jwesWPX0Q==, tableContent=null), ArticleFig(id=1319293548772578142, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293538634945282, language=EN, label=Fig.11, caption=
Different contact stresses correspond to the plane displacement of the flange, figureFileSmall=Jjahzuzvhg6Tn2yBjkU+zg==, figureFileBig=KWDP96mxkL1gJKeGGsegxA==, tableContent=null), ArticleFig(id=1319293548848075615, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293538634945282, language=CN, label=图11, caption=
不同接触应力对应法兰平面位移量, figureFileSmall=Jjahzuzvhg6Tn2yBjkU+zg==, figureFileBig=KWDP96mxkL1gJKeGGsegxA==, tableContent=null), ArticleFig(id=1319293550471271264, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293538634945282, language=EN, label=Fig.12, caption=
Rough surface compression under different contact stress, figureFileSmall=xDBmlBHTPaoZ2VStlGHURg==, figureFileBig=5JRJZ3VDm3n/pKsYDr3uVQ==, tableContent=null), ArticleFig(id=1319293550538380129, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293538634945282, language=CN, label=图12, caption=
不同接触应力下粗糙面受压情况, figureFileSmall=xDBmlBHTPaoZ2VStlGHURg==, figureFileBig=5JRJZ3VDm3n/pKsYDr3uVQ==, tableContent=null), ArticleFig(id=1319293550609683298, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293538634945282, language=EN, label=Fig.13, caption=
Relation between contact stress and leakage rate, figureFileSmall=FPWaz1RgO8mQ3M0CGeZdsw==, figureFileBig=LbKAzfc3HvvZYK+k1fzhsQ==, tableContent=null), ArticleFig(id=1319293550680986467, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293538634945282, language=CN, label=图13, caption=
接触应力与泄漏率的变化关系, figureFileSmall=FPWaz1RgO8mQ3M0CGeZdsw==, figureFileBig=LbKAzfc3HvvZYK+k1fzhsQ==, tableContent=null), ArticleFig(id=1319293550760678244, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293538634945282, language=EN, label=Fig.14, caption=
Influence of root mean square deviation Sq on leakage rate of metal sealing ring, figureFileSmall=8Y70P6jmjU3Cabxwsw3S0A==, figureFileBig=aD33cEBtfTMU6T2GTQWOow==, tableContent=null), ArticleFig(id=1319293550823592805, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293538634945282, language=CN, label=图14, caption=
均方根偏差Sq对金属封严环泄漏率的影响, figureFileSmall=8Y70P6jmjU3Cabxwsw3S0A==, figureFileBig=aD33cEBtfTMU6T2GTQWOow==, tableContent=null), ArticleFig(id=1319293550882313062, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293538634945282, language=EN, label=Fig.15, caption=
Influence of pressure on leakage rate of metal seal ring, figureFileSmall=zxlUqCpUfT3RQITfiakltQ==, figureFileBig=VQXmxuBHDC5QiuHJuGM0eg==, tableContent=null), ArticleFig(id=1319293550945227623, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293538634945282, language=CN, label=图15, caption=
压差对金属封严环泄漏率的影响, figureFileSmall=zxlUqCpUfT3RQITfiakltQ==, figureFileBig=VQXmxuBHDC5QiuHJuGM0eg==, tableContent=null), ArticleFig(id=1319293551008142184, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293538634945282, language=EN, label=Tab.1, caption=
The dimensions and working conditions of six types of C‑shaped sealing ring test pieces
, figureFileSmall=null, figureFileBig=null, tableContent=
| 环型号 | 尺寸/mm | 气体压差/MPa | 均方根粗糙度/µm |
|---|
| 1 | | 0.15 | 0.90 |
| 2 | | 0.15 | 0.45 |
| 3 | | 3.00 | 0.60 |
| 4 | | 3.00 | 0.90 |
| 5 | | 5.50 | 1.20 |
| 6 | | 5.50 | 0.90 |
), ArticleFig(id=1319293551092028265, tenantId=1146029695717560320, journalId=1316781260334530699, articleId=1319293538634945282, language=CN, label=表1, caption=
6种C形封严环试验件的尺寸和工况
, figureFileSmall=null, figureFileBig=null, tableContent=
| 环型号 | 尺寸/mm | 气体压差/MPa | 均方根粗糙度/µm |
|---|
| 1 | | 0.15 | 0.90 |
| 2 | | 0.15 | 0.45 |
| 3 | | 3.00 | 0.60 |
| 4 | | 3.00 | 0.90 |
| 5 | | 5.50 | 1.20 |
| 6 | | 5.50 | 0.90 |
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