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The fracturing pump plunger seal pair is one of the components most prone to failure at the hydraulic end of the fracturing pump due to its long-term operation under variable load,reciprocal friction and high pressure, and acidic fracturing fluid. To study the influence of interference magnitude, medium pressure, etc. on the sealing performance of V-shaped sealing ring, the assembly process of V-shaped sealing ring was simulated by using automatic shrinkage fit, the actual fluid pressure action condition of the V-shaped sealing ring was simulated based on fluid pressure penetration, and the finite element model of V-shaped sealing ring was established. Under quasi-static and dynamic sealing, the maximum Mises stress and the variation law of contact pressure of the V-shaped sealing ring were analyzed. A two-stage differential pressure plunger seal structure was proposed, and the sealing performance analysis of the structure was carried out. The results show that the maximum contact pressure of the seals all appear in the V-shaped sealing ring near the high-pressure fluid side, and the maximum stress is mainly in the lip and shoulder of the V-shaped sealing ring in contact with the support ring and press ring,the V-shaped sealing ring is more likely to fail on the side in contact with the plunger. The use of two-stage differential pressure plunger seal can effectively reduce the Mises stress, shear stress, and friction between the V-shaped sealing ring and the plunger, which can extend the working life of the fracturing pump plunger seal and improve the reliability and economy of the fracturing operation.
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压裂泵柱塞密封副长期在变载荷、往复摩擦及高压、酸性压裂液的环境下运行,是压裂泵液力端最容易失效的部件之一。为研究过盈量、介质压力等对V形密封圈密封性能的影响,采用自动收缩配合模拟V形密封圈的装配过程,基于流体压力渗透模拟V形密封圈的实际流体压力作业工况,建立了V形组合密封圈的有限元模型;分析了V形密封圈在准静态和动态密封下的最大Mises应力和接触压力的变化规律;提出了一种双级压差的柱塞密封结构,并对该结构进行了密封性能分析。结果表明,密封圈的最大接触压力都出现在靠近高压流体侧的V形密封圈处,最大应力主要在V形密封圈与支撑环和压环相接触的唇部和肩部;V形密封圈与柱塞接触一侧更容易发生失效;采用双级压差柱塞密封能够有效减小V形密封圈的Mises应力、剪切应力,以及与柱塞间的摩擦力,可延长压裂泵柱塞密封的工作寿命,提高压裂作业的可靠性和经济性。
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, authorsList=赵明博, 侯勇俊, 唐瑞欢, 李华川, 刘有平)}, authors=[Author(id=1241699540726764179, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=zmb1118@126.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1241699540953256604, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, authorId=1241699540726764179, language=EN, stringName=Mingbo ZHAO, firstName=Mingbo, middleName=null, lastName=ZHAO, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1.School of Mechanical and Electrical Engineering, Southwest Petroleum University, Chengdu 610500, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1241699541095862947, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, authorId=1241699540726764179, language=CN, stringName=赵明博, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1.西南石油大学 机电工程学院,成都 610500, bio={"content":"
赵明博,男,1997年生,陕西富平人,硕士研究生;主要研究方向为橡胶往复密封;E-mail:zmb1118@126.com。
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赵明博,男,1997年生,陕西富平人,硕士研究生;主要研究方向为橡胶往复密封;E-mail:zmb1118@126.com。
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1.西南石油大学 机电工程学院,成都 610500)])]), Author(id=1241699541188137640, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, orderNo=1, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=yongjunhou@126.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1241699541301383854, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, authorId=1241699541188137640, language=EN, stringName=Yongjun HOU, firstName=Yongjun, middleName=null, lastName=HOU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1.西南石油大学 机电工程学院,成都 610500)])]), Author(id=1241699541708231354, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, orderNo=2, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1241699541842449088, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, authorId=1241699541708231354, language=EN, stringName=Ruihuan TANG, firstName=Ruihuan, middleName=null, lastName=TANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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2.Equipment Department, Chuanqing Drilling Engineering Co., Ltd., Chengdu 610051, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1241699541959889605, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, authorId=1241699541708231354, language=CN, stringName=唐瑞欢, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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2.川庆钻探工程有限公司 设备处,成都 610051, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1241699540361859710, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, xref=2., ext=[AuthorCompanyExt(id=1241699540403802754, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, companyId=1241699540361859710, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.Equipment Department, Chuanqing Drilling Engineering Co., Ltd., Chengdu 610051, China), AuthorCompanyExt(id=1241699540416385667, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, companyId=1241699540361859710, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.川庆钻探工程有限公司 设备处,成都 610051)])]), Author(id=1241699543545336532, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, orderNo=3, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1241699543641805529, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, authorId=1241699543545336532, language=EN, stringName=Huachuan LI, firstName=Huachuan, middleName=null, lastName=LI, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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3.BOMCO Sichuan Special Vehicle Co., Ltd., Guanghan 618300, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1241699543717303005, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, authorId=1241699543545336532, language=CN, stringName=李华川, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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3.四川宝石机械专用车有限公司,广汉 618300, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1241699540550603402, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, xref=3., ext=[AuthorCompanyExt(id=1241699540558992011, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, companyId=1241699540550603402, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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3.四川宝石机械专用车有限公司,广汉 618300)])])], keywords=[Keyword(id=1241699544078013169, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, language=EN, orderNo=1, keyword=V-shaped sealing ring), Keyword(id=1241699544166093556, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, language=EN, orderNo=2, keyword=Interference assembly), Keyword(id=1241699544245785338, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, language=EN, orderNo=3, keyword=Fluid pressure penetration), Keyword(id=1241699544329671424, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, language=EN, orderNo=4, keyword=Structural design), Keyword(id=1241699544417751813, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, language=EN, orderNo=5, keyword=Sealing performance), Keyword(id=1241699544501637897, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, language=CN, orderNo=1, keyword=V形密封圈), Keyword(id=1241699544614884109, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, language=CN, orderNo=2, keyword=过盈装配), Keyword(id=1241699544778461969, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, language=CN, orderNo=3, keyword=流体压力渗透), Keyword(id=1241699544887513879, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, language=CN, orderNo=4, keyword=结构设计), Keyword(id=1241699544983982876, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, language=CN, orderNo=5, keyword=密封性能)], refs=[Reference(id=1241699553104154723, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, doi=null, pmid=null, pmcid=null, year=2021, volume=37, issue=4, pageStart=25, pageEnd=30, url=null, language=null, rfNumber=[1], rfOrder=0, authorNames=张冕, 池晓明, 刘欢, journalName=中国石油大学学报(社会科学版), refType=null, unstructuredReference=张冕,池晓明,刘欢,等.我国石油工程领域压裂酸化技术现状、未来趋势及促进对策[J].
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Sub-structure sketch of single-stage differential pressure plunger seal pair, figureFileSmall=5+YlQlFIte+C4HUJSflnUQ==, figureFileBig=xGQ+1y4zvXvgLrBOK4P1MQ==, tableContent=null), ArticleFig(id=1241699545206281004, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, language=CN, label=图1, caption=
单级压差柱塞密封副结构简图, figureFileSmall=5+YlQlFIte+C4HUJSflnUQ==, figureFileBig=xGQ+1y4zvXvgLrBOK4P1MQ==, tableContent=null), ArticleFig(id=1241699545428579131, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, language=EN, label=Fig. 2, caption=
Two-dimensional axisymmetric model, figureFileSmall=f1VT7ShilDBoeCA5GIa4fg==, figureFileBig=RECsWWV1Oufk3I8zSWHnNg==, tableContent=null), ArticleFig(id=1241699545525048131, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, language=CN, label=图2, caption=
二维轴对称模型, figureFileSmall=f1VT7ShilDBoeCA5GIa4fg==, figureFileBig=RECsWWV1Oufk3I8zSWHnNg==, tableContent=null), ArticleFig(id=1241699545617322826, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, language=EN, label=Fig. 3, caption=
Contact pressure diagram calculated by different grid numbers, figureFileSmall=i0zGAOmnjoTsj+UjiCptGA==, figureFileBig=RGulAjU44kbOnOtxOWl31Q==, tableContent=null), ArticleFig(id=1241699545722180435, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, language=CN, label=图3, caption=
不同网格数计算出的接触压力图, figureFileSmall=i0zGAOmnjoTsj+UjiCptGA==, figureFileBig=RGulAjU44kbOnOtxOWl31Q==, tableContent=null), ArticleFig(id=1241699545814455131, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, language=EN, label=Fig. 4, caption=
Permeation and loading principle of the fluid pressure, figureFileSmall=2Io6osVmPGF2i/OHeyRaQg==, figureFileBig=xBNGrKYePtmk9BZYDVPXVw==, tableContent=null), ArticleFig(id=1241699545906729824, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, language=CN, label=图4, caption=
流体压力渗透加载原理, figureFileSmall=2Io6osVmPGF2i/OHeyRaQg==, figureFileBig=xBNGrKYePtmk9BZYDVPXVw==, tableContent=null), ArticleFig(id=1241699545986421606, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, language=EN, label=Fig. 5, caption=
Mises stress and contact pressure nephogram of V-shaped sealing ring in the assembled state, figureFileSmall=hJHyjMxQaOAm/y+KpJbfzw==, figureFileBig=T551YEuA4IQI7U6mOxJUmA==, tableContent=null), ArticleFig(id=1241699546078696301, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, language=CN, label=图5, caption=
装配状态下V形密封圈的Mises应力和接触压力云图, figureFileSmall=hJHyjMxQaOAm/y+KpJbfzw==, figureFileBig=T551YEuA4IQI7U6mOxJUmA==, tableContent=null), ArticleFig(id=1241699546162582388, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, language=EN, label=Fig. 6, caption=
Mises stress and contact pressure nephogram of V-shaped sealing ring in the quasi-static sealing condition, figureFileSmall=ykS3TIri88oJ994NlZeAUw==, figureFileBig=rF7o83DLa9JUOL5AeSAGkQ==, tableContent=null), ArticleFig(id=1241699546313577341, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, language=CN, label=图6, caption=
准静态密封状态下V形密封圈的Mises应力和接触压力云图, figureFileSmall=ykS3TIri88oJ994NlZeAUw==, figureFileBig=rF7o83DLa9JUOL5AeSAGkQ==, tableContent=null), ArticleFig(id=1241699546397463427, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, language=EN, label=Fig. 7, caption=
Mises stress and contact pressure ephogram of V-shaped sealing ring in dynamic sealing, figureFileSmall=9QSGL9fGmhDcYj1YQQFunA==, figureFileBig=5vTPXTuuVU8tzPFK5GYM1g==, tableContent=null), ArticleFig(id=1241699548012270480, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, language=CN, label=图7, caption=
动密封中V形密封圈的Mises应力和接触压力云图, figureFileSmall=9QSGL9fGmhDcYj1YQQFunA==, figureFileBig=5vTPXTuuVU8tzPFK5GYM1g==, tableContent=null), ArticleFig(id=1241699548133905302, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, language=EN, label=Fig. 8, caption=
Time-stress curves of four points, figureFileSmall=js3ANG9TXbmGULc+PPcYDw==, figureFileBig=LZvKqpTM4YRz33xamzdx9g==, tableContent=null), ArticleFig(id=1241699548322648996, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, language=CN, label=图8, caption=
4个点的时间-应力曲线, figureFileSmall=js3ANG9TXbmGULc+PPcYDw==, figureFileBig=LZvKqpTM4YRz33xamzdx9g==, tableContent=null), ArticleFig(id=1241699548523975596, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, language=EN, label=Fig. 9, caption=
Contact pressure curve of the main sealing surface, figureFileSmall=lMvxCFdRBuh+4GL9aV9krQ==, figureFileBig=XF446nmpO1lE46gMI3P8qQ==, tableContent=null), ArticleFig(id=1241699548687553459, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, language=CN, label=图9, caption=
主密封面的接触压力曲线, figureFileSmall=lMvxCFdRBuh+4GL9aV9krQ==, figureFileBig=XF446nmpO1lE46gMI3P8qQ==, tableContent=null), ArticleFig(id=1241699548842742715, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, language=EN, label=Fig. 10, caption=
Schematic diagram of differential pressure plunger seal structure, figureFileSmall=95lAm+G9RT7nU6tcBJleXg==, figureFileBig=iIBp3DQod+VL0a/bDgbu3Q==, tableContent=null), ArticleFig(id=1241699548935017410, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, language=CN, label=图10, caption=
压差式柱塞密封结构示意图, figureFileSmall=95lAm+G9RT7nU6tcBJleXg==, figureFileBig=iIBp3DQod+VL0a/bDgbu3Q==, tableContent=null), ArticleFig(id=1241699549060846539, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, language=EN, label=Fig. 11, caption=
Contact pressure curve of the main sealing surface, figureFileSmall=1301fM+2N+NyUxel/9IjPw==, figureFileBig=raCSQLIcW9Bft5A9rO2OKw==, tableContent=null), ArticleFig(id=1241699549157315538, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, language=CN, label=图11, caption=
主密封面的接触压力曲线, figureFileSmall=1301fM+2N+NyUxel/9IjPw==, figureFileBig=raCSQLIcW9Bft5A9rO2OKw==, tableContent=null), ArticleFig(id=1241699549274756057, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, language=EN, label=Fig. 12, caption=
Distribution curve of the maximum Mises stress, figureFileSmall=Jw3zrmBC+9t9hJZG/Uvi9A==, figureFileBig=NoHN0Ui+WN/yW2Z0w/2OYw==, tableContent=null), ArticleFig(id=1241699549346059229, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, language=CN, label=图12, caption=
最大Mises应力分布曲线, figureFileSmall=Jw3zrmBC+9t9hJZG/Uvi9A==, figureFileBig=NoHN0Ui+WN/yW2Z0w/2OYw==, tableContent=null), ArticleFig(id=1241699549438333920, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, language=EN, label=Fig. 13, caption=
Contact pressure curve of the main sealing surface, figureFileSmall=ef+iV1yJ/fa5DevwFu1p4A==, figureFileBig=TzeYyOervgQBRZsAfnOvLQ==, tableContent=null), ArticleFig(id=1241699549543191527, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, language=CN, label=图13, caption=
主密封面的接触压力曲线, figureFileSmall=ef+iV1yJ/fa5DevwFu1p4A==, figureFileBig=TzeYyOervgQBRZsAfnOvLQ==, tableContent=null), ArticleFig(id=1241699549660632043, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, language=EN, label=Fig. 14, caption=
Maximum Mises stress distribution curve of V-shaped sealing ring, figureFileSmall=mBOcKt3WibNW379KFFtWNg==, figureFileBig=hTbOxJSqmqIi0peJ22Jd/Q==, tableContent=null), ArticleFig(id=1241699549778072560, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, language=CN, label=图14, caption=
V形密封圈的最大Mises应力分布曲线, figureFileSmall=mBOcKt3WibNW379KFFtWNg==, figureFileBig=hTbOxJSqmqIi0peJ22Jd/Q==, tableContent=null), ArticleFig(id=1241699549908095989, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, language=EN, label=Fig. 15, caption=
Contact pressure curves under different interference magnitudes, figureFileSmall=9EXcAwWjCkjYfv9Swa9T5A==, figureFileBig=4wfMRAEgJzSkmCiQtwqFYw==, tableContent=null), ArticleFig(id=1241699550054896638, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, language=CN, label=图15, caption=
不同过盈量下接触压力曲线, figureFileSmall=9EXcAwWjCkjYfv9Swa9T5A==, figureFileBig=4wfMRAEgJzSkmCiQtwqFYw==, tableContent=null), ArticleFig(id=1241699550159753217, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, language=EN, label=Fig. 16, caption=
Comparison of friction and shear stress under different interference magnitudes, figureFileSmall=dKgjNYrqvImvThsthz2K+Q==, figureFileBig=ZQpK9sceIiNwrSxpnsmpZQ==, tableContent=null), ArticleFig(id=1241699550281388039, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, language=CN, label=图16, caption=
不同过盈量下摩擦力与剪切应力对比, figureFileSmall=dKgjNYrqvImvThsthz2K+Q==, figureFileBig=ZQpK9sceIiNwrSxpnsmpZQ==, tableContent=null), ArticleFig(id=1241699550394634252, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, language=EN, label=Fig. 17, caption=
Maximum Mises stress curve under different interference magnitudes, figureFileSmall=GFxDSslefCctekoa2ayYWQ==, figureFileBig=zRAIU0FQjLqx3uXDpXFESw==, tableContent=null), ArticleFig(id=1241699550470131727, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, language=CN, label=图17, caption=
不同过盈量下最大Mises应力曲线, figureFileSmall=GFxDSslefCctekoa2ayYWQ==, figureFileBig=zRAIU0FQjLqx3uXDpXFESw==, tableContent=null), ArticleFig(id=1241699550562406421, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, language=EN, label=Fig. 18, caption=
Contact pressure curve under different medium pressures, figureFileSmall=ciP0lbYdPd3DSvL+cScJrw==, figureFileBig=yc+4Bkep0S4190CsQMCsJQ==, tableContent=null), ArticleFig(id=1241699550654681116, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, language=CN, label=图18, caption=
不同介质压力下接触压力曲线, figureFileSmall=ciP0lbYdPd3DSvL+cScJrw==, figureFileBig=yc+4Bkep0S4190CsQMCsJQ==, tableContent=null), ArticleFig(id=1241699550738567203, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, language=EN, label=Fig. 19, caption=
Comparison of friction and shear stress under different medium pressures, figureFileSmall=ITJ2h3devPNVGo3XkDld0g==, figureFileBig=jZ2YnwpNUid0V3eS4ijGsQ==, tableContent=null), ArticleFig(id=1241699550872784939, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, language=CN, label=图19, caption=
不同介质压力下摩擦力与剪切应力对比, figureFileSmall=ITJ2h3devPNVGo3XkDld0g==, figureFileBig=jZ2YnwpNUid0V3eS4ijGsQ==, tableContent=null), ArticleFig(id=1241699552420483126, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699532073914897, language=EN, label=Fig. 20, caption=
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