Article(id=1324392886791438829, tenantId=1146029695717560320, journalId=1240685776644648972, issueId=1324392762614882315, articleNumber=null, orderNo=null, doi=10.3969/j.issn.1007-7294.2026.07.014, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1760198400000, receivedDateStr=2025-10-12, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1793689470240, onlineDateStr=2026-11-03, pubDate=1784044800000, pubDateStr=2026-07-15, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1793689470240, onlineIssueDateStr=2026-11-03, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1793689470240, creator=13701087609, updateTime=1793689470240, updator=13701087609, issue=Issue{id=1324392762614882315, tenantId=1146029695717560320, journalId=1240685776644648972, year='2026', volume='30', issue='7', pageStart='1041', pageEnd='1220', issueExtLink='null', onlineDate='null', pubDate='1784044800000', pubDateStr='2026-07-15', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1793689440634, creator='13701087609', updateTime=1793689440634, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=1206, endPage=1220, ext={EN=ArticleExt(id=1324392887072457198, articleId=1324392886791438829, tenantId=1146029695717560320, journalId=1240685776644648972, language=EN, title=Rapid prediction and excitation source characteristics analysis of flow-induced vibration in an orifice plate pipeline, columnId=1241023038381158513, journalTitle=Journal of Ship Mechanics, columnName=Hydro/Structural Acoustics, runingTitle=null, highlight=null, articleAbstract=
To address the problem of pipe flow-induced vibration caused by orifice plates, an efficient prediction method is proposed. Based on the idea of the separation solution, combined with the detailed simulation of the time-domain fluctuating pressure of the pipeline using Computational Fluid Dynamics, the time-domain excitation load is mapped through segmented integration and Fourier transformation into the frequency domain. Subsequently, the vibration response is rapidly predicted in the finite element model based on the beam theory. Compared with the three-dimensional model, it is shown that this method significantly reduces the simulation time while maintaining the calculation accuracy. The comparison with the experimental results shows that this method can accurately predict the flow-induced vibration characteristics of the orifice plate. By leveraging the efficient computing advantage of this method, the excitation source is divided into the upstream high-pressure area, the local disturbance area of the orifice plate, and the downstream strong vortex area for qualitative analysis. The results indicate that the axial force at the orifice plate end face and the circumferential force in the strong vortex area are the main excitation sources, and the other loads can be approximately ignored. The proposed method has strong universality and is applicable for the rapid prediction and design evaluation of the orifice plate structure in pipeline systems, and can also be extended to other types of pipeline accessories.
, authors=Jing-feng GONG
1, Zhi-ming YANG
1, Zhi-yun XU
2, Ying-bo DIAO
1, Xiao-feng CHEN
1, authorsList=Jing-feng GONG, Zhi-ming YANG, Zhi-yun XU, Ying-bo DIAO, Xiao-feng CHEN, 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=1324392897012957759, articleId=1324392886791438829, tenantId=1146029695717560320, journalId=1240685776644648972, language=CN, title=孔板管路流致振动快速预报与激励源特性分析, columnId=1241023038515376243, journalTitle=船舶力学, columnName=流体与结构声学, runingTitle=null, highlight=null, articleAbstract=
本文提出一种高效的预报方法以解决孔板引起的管路流致振动问题。基于分离解法的思路,结合计算流体力学精细化模拟管路时域脉动压力,通过分段积分与傅里叶变换将其映射为频域激励载荷,进而在基于梁理论的有限元模型中快速预测振动响应。与三维模型对比表明:该方法在保持计算精度的同时显著降低了仿真耗时;与试验结果对比验证表明:该方法能够较准确地预测孔板管路的流致振动特性。利用该方法的高效计算优势,将激励源划分为上游高压区、孔板局部扰动区及下游强涡区进行定性分析,结果表明:孔板端面轴向力与强涡区周向载荷为主要激励源,其余载荷可近似忽略。本文所采用方法通用性强,适用于管路系统中孔板流致振动的快速预测与设计评估,亦可推广至其他类型管路附件。
, authors=龚京风
1, 杨志明
1, 徐志云
2, 刁莹博
1, 陈肖风
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Journal of Fluids and Structures, 2012, 28: 434-455., articleTitle=null, refAbstract=null)], funds=[Fund(id=1324392909725893284, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, awardId=null, language=CN, fundingSource=汉江国家试验室开放基金(KF2024016), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1324392897277198912, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, xref=1, ext=[AuthorCompanyExt(id=1324392897289781825, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, companyId=1324392897277198912, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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Geometrical information, figureFileSmall=TslQVJ5chZ0FswiA+UiUPg==, figureFileBig=Mx/jW1ft9L1inkBvadbUaQ==, tableContent=null), ArticleFig(id=1324392902067094122, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=CN, label=图1, caption=
几何信息, figureFileSmall=TslQVJ5chZ0FswiA+UiUPg==, figureFileBig=Mx/jW1ft9L1inkBvadbUaQ==, tableContent=null), ArticleFig(id=1324392903858061932, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=EN, label=Fig.2, caption=
Division of fluid domain pipe section (taking a length of 0.5 times the pipe diameter as an example), figureFileSmall=4YZJUg3wc5YcUEKSfe7gDg==, figureFileBig=YzeU0kzwnyB2cPFOByayiA==, tableContent=null), ArticleFig(id=1324392903929365101, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=CN, label=图2, caption=
流体域管段划分(L以0.5倍内径长度为例), figureFileSmall=4YZJUg3wc5YcUEKSfe7gDg==, figureFileBig=YzeU0kzwnyB2cPFOByayiA==, tableContent=null), ArticleFig(id=1324392904000668270, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=EN, label=Fig.3, caption=
Flow field grid model, figureFileSmall=KeGIJWCbRNCtLmboZGTDRQ==, figureFileBig=o0fFTBaUXvYC/L+D+rXZ7w==, tableContent=null), ArticleFig(id=1324392904063582831, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=CN, label=图3, caption=
流场网格模型, figureFileSmall=KeGIJWCbRNCtLmboZGTDRQ==, figureFileBig=o0fFTBaUXvYC/L+D+rXZ7w==, tableContent=null), ArticleFig(id=1324392904122303088, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=EN, label=Fig.4, caption=
Grid model of structural field, figureFileSmall=6HqlDp1VWueOZZ0mrx3F1Q==, figureFileBig=aIQIhrjmgmDrw1TwNmSboQ==, tableContent=null), ArticleFig(id=1324392904189411953, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=CN, label=图4, caption=
结构场网格模型, figureFileSmall=6HqlDp1VWueOZZ0mrx3F1Q==, figureFileBig=aIQIhrjmgmDrw1TwNmSboQ==, tableContent=null), ArticleFig(id=1324392904256520818, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=EN, label=Fig.5, caption=
Simplified model, figureFileSmall=JdZ+y4WfeZtsznTDn7bTHg==, figureFileBig=2BK1sFKogfkpIEmv5UIgtg==, tableContent=null), ArticleFig(id=1324392904327823987, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=CN, label=图5, caption=
简化模型, figureFileSmall=JdZ+y4WfeZtsznTDn7bTHg==, figureFileBig=2BK1sFKogfkpIEmv5UIgtg==, tableContent=null), ArticleFig(id=1324392904470430324, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=EN, label=Fig.6, caption=
Comparison of vertical frequency response, figureFileSmall=HDcGMWRd73CBRQGebrmMyg==, figureFileBig=JC/wwkGl56t77A/agoq0DQ==, tableContent=null), ArticleFig(id=1324392904550122101, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=CN, label=图6, caption=
垂向频响对比, figureFileSmall=HDcGMWRd73CBRQGebrmMyg==, figureFileBig=JC/wwkGl56t77A/agoq0DQ==, tableContent=null), ArticleFig(id=1324392904621425270, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=EN, label=Fig.7, caption=
Fluid load of frequency-domain, figureFileSmall=iY/OtOFwSxq/VdMjoGy/1g==, figureFileBig=Yv4lUS+ClCKbso2SiIkcLg==, tableContent=null), ArticleFig(id=1324392904705311351, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=CN, label=图7, caption=
频域流体载荷, figureFileSmall=iY/OtOFwSxq/VdMjoGy/1g==, figureFileBig=Yv4lUS+ClCKbso2SiIkcLg==, tableContent=null), ArticleFig(id=1324392904768225912, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=EN, label=Fig.8, caption=
Comparison of three-dimensional FIV responses at Points A and B in different models, figureFileSmall=oQrithOM2bZgnSnT98HZxQ==, figureFileBig=5oW6K86HainEYKTk+HTleg==, tableContent=null), ArticleFig(id=1324392904835334777, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=CN, label=图8, caption=
不同模型下A、B点的三向FIV响应对比, figureFileSmall=oQrithOM2bZgnSnT98HZxQ==, figureFileBig=5oW6K86HainEYKTk+HTleg==, tableContent=null), ArticleFig(id=1324392904902443642, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=EN, label=Fig.9, caption=
Experiment object, figureFileSmall=0A2UVPhPr/u6XfHbThO5kw==, figureFileBig=oiZKmATCDYfhovny494IDw==, tableContent=null), ArticleFig(id=1324392904969552507, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=CN, label=图9, caption=
试验对象, figureFileSmall=0A2UVPhPr/u6XfHbThO5kw==, figureFileBig=oiZKmATCDYfhovny494IDw==, tableContent=null), ArticleFig(id=1324392905028272764, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=EN, label=Fig.10, caption=
Experimental rig, figureFileSmall=ekJE9H/PdrmR/GYPrNd/zA==, figureFileBig=PAtqrwCU11pamT3EPvLkSQ==, tableContent=null), ArticleFig(id=1324392905107964541, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=CN, label=图10, caption=
试验台架, figureFileSmall=ekJE9H/PdrmR/GYPrNd/zA==, figureFileBig=PAtqrwCU11pamT3EPvLkSQ==, tableContent=null), ArticleFig(id=1324392905170879102, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=EN, label=Fig.11, caption=
Dynamic stiffness of elastic support, figureFileSmall=KITizUv6d/2n+eavPiZmJg==, figureFileBig=lbMQP9w8lNDLbim8vDNXlA==, tableContent=null), ArticleFig(id=1324392905242182271, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=CN, label=图11, caption=
弹性支撑动刚度, figureFileSmall=KITizUv6d/2n+eavPiZmJg==, figureFileBig=lbMQP9w8lNDLbim8vDNXlA==, tableContent=null), ArticleFig(id=1324392905321874048, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=EN, label=Fig.12, caption=
Verification of the computational model, figureFileSmall=El5P3whLyMs7rydt654R+w==, figureFileBig=n3Zf+IGlPzyRWxUSA1X5yg==, tableContent=null), ArticleFig(id=1324392905388982913, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=CN, label=图12, caption=
计算模型验证, figureFileSmall=El5P3whLyMs7rydt654R+w==, figureFileBig=n3Zf+IGlPzyRWxUSA1X5yg==, tableContent=null), ArticleFig(id=1324392905456091778, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=EN, label=Fig.13, caption=
Comparison between rapid prediction method and experimental results, figureFileSmall=24fguigfc2mCQ/v/gJoLlQ==, figureFileBig=WrKfWgtmjeWgWEo64fS5Sw==, tableContent=null), ArticleFig(id=1324392905523200643, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=CN, label=图13, caption=
快速预报方法与试验结果对比, figureFileSmall=24fguigfc2mCQ/v/gJoLlQ==, figureFileBig=WrKfWgtmjeWgWEo64fS5Sw==, tableContent=null), ArticleFig(id=1324392905615475332, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=EN, label=Fig.14, caption=
Comparison of FIV responses at Points A and B under different pipe lengths, figureFileSmall=IThOFzP1cEu4N2cf3E6Xyw==, figureFileBig=NqbhaqSBpKvhtpluupfuuA==, tableContent=null), ArticleFig(id=1324392905682584197, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=CN, label=图14, caption=
不同管段长度下A、B点的FIV响应对比, figureFileSmall=IThOFzP1cEu4N2cf3E6Xyw==, figureFileBig=NqbhaqSBpKvhtpluupfuuA==, tableContent=null), ArticleFig(id=1324392905745498758, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=EN, label=Fig.15, caption=
Pressure distribution, figureFileSmall=o7a6pCg24eg55bbue8e83w==, figureFileBig=LhpBUKdqJHwWahMGGtjcdQ==, tableContent=null), ArticleFig(id=1324392905816801927, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=CN, label=图15, caption=
压力云图, figureFileSmall=o7a6pCg24eg55bbue8e83w==, figureFileBig=LhpBUKdqJHwWahMGGtjcdQ==, tableContent=null), ArticleFig(id=1324392905888105096, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=EN, label=Fig.16, caption=
Comparison of FIV responses at Points A and B under Cases 1 and 2, figureFileSmall=VCC3wyOThALbuXtEBgAm2Q==, figureFileBig=+SdvF87lbjT11dkxogfz/Q==, tableContent=null), ArticleFig(id=1324392905955213961, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=CN, label=图16, caption=
案例1与2的A、B点的FIV响应对比, figureFileSmall=VCC3wyOThALbuXtEBgAm2Q==, figureFileBig=+SdvF87lbjT11dkxogfz/Q==, tableContent=null), ArticleFig(id=1324392906022322826, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=EN, label=Fig.17, caption=
Concentrated force on the fluid wall, figureFileSmall=VOjG9NrjH3e/CauijKyIlQ==, figureFileBig=d3UF2sLabjwqlVk1wMNNug==, tableContent=null), ArticleFig(id=1324392906118791819, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=CN, label=图17, caption=
流体壁面集中力, figureFileSmall=VOjG9NrjH3e/CauijKyIlQ==, figureFileBig=d3UF2sLabjwqlVk1wMNNug==, tableContent=null), ArticleFig(id=1324392906177512076, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=EN, label=Fig.18, caption=
Comparison of FIV responses at Points A and B under Cases 1 and 3, figureFileSmall=ZiuuuFVIlmSr4f4CqXtaEw==, figureFileBig=aRvqkae6W4v3iQmM1g1WiA==, tableContent=null), ArticleFig(id=1324392906257203853, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=CN, label=图18, caption=
案例1与3的A、B点的FIV响应对比, figureFileSmall=ZiuuuFVIlmSr4f4CqXtaEw==, figureFileBig=aRvqkae6W4v3iQmM1g1WiA==, tableContent=null), ArticleFig(id=1324392906320118414, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=EN, label=Fig.19, caption=
Comparison of load on each pipe section, figureFileSmall=QRoILtC/l7eQKYjBlQ9OOw==, figureFileBig=Uj8Qd9DrbXZWHok1fbmG+Q==, tableContent=null), ArticleFig(id=1324392906521445007, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=CN, label=图19, caption=
各管段载荷对比, figureFileSmall=QRoILtC/l7eQKYjBlQ9OOw==, figureFileBig=Uj8Qd9DrbXZWHok1fbmG+Q==, tableContent=null), ArticleFig(id=1324392908207555216, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=EN, label=Fig.20, caption=
Comparison of FIV responses at Points A and B under Cases 1 and 4, figureFileSmall=gz+8SZ+laE1jw+s+zQS8pw==, figureFileBig=wa9f8huzFCIhqXMBVFyCEg==, tableContent=null), ArticleFig(id=1324392908291441297, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=CN, label=图20, caption=
案例1与4的A、B点的FIV响应对比, figureFileSmall=gz+8SZ+laE1jw+s+zQS8pw==, figureFileBig=wa9f8huzFCIhqXMBVFyCEg==, tableContent=null), ArticleFig(id=1324392908354355858, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=EN, label=Fig.21, caption=
Comparison of FIV responses at Points A and B under Cases 4, 5 and 6, figureFileSmall=DMsOKzm73PTjGsHD2wvJgg==, figureFileBig=jh2VwUAJf2lsfuR+iXGvfQ==, tableContent=null), ArticleFig(id=1324392908417270419, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=CN, label=图21, caption=
案例4、5与6的A、B点的FIV响应对比, figureFileSmall=DMsOKzm73PTjGsHD2wvJgg==, figureFileBig=jh2VwUAJf2lsfuR+iXGvfQ==, tableContent=null), ArticleFig(id=1324392908492767892, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=EN, label=Fig.22, caption=
Velocity profile distribution, figureFileSmall=R6WoV22kD8aYQrFjIrTp2Q==, figureFileBig=lEWPZIj0/XZot0BygcgV/g==, tableContent=null), ArticleFig(id=1324392908568265365, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=CN, label=图22, caption=
速度剖面云图, figureFileSmall=R6WoV22kD8aYQrFjIrTp2Q==, figureFileBig=lEWPZIj0/XZot0BygcgV/g==, tableContent=null), ArticleFig(id=1324392908635374230, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=EN, label=Fig.23, caption=
Wall vorticity distribution, figureFileSmall=O+RRvfGo65jEQXFElS+cKQ==, figureFileBig=mkn/JqvAh68P2TO0AuuXvQ==, tableContent=null), ArticleFig(id=1324392908706677399, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=CN, label=图23, caption=
管壁涡量云图, figureFileSmall=O+RRvfGo65jEQXFElS+cKQ==, figureFileBig=mkn/JqvAh68P2TO0AuuXvQ==, tableContent=null), ArticleFig(id=1324392908777980568, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=EN, label=Tab.1, caption=
Physical property parameters of flow field
, figureFileSmall=null, figureFileBig=null, tableContent=
| 流体(水)参数 | 数值 |
| 密度/(kg·m−3) | 998.2 |
| 粘性系数/(kg·(m·s)−1) | 0.001 |
), ArticleFig(id=1324392908853478041, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=CN, label=表1, caption=
流场物性参数
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| 流体(水)参数 | 数值 |
| 密度/(kg·m−3) | 998.2 |
| 粘性系数/(kg·(m·s)−1) | 0.001 |
), ArticleFig(id=1324392908937364122, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=EN, label=Tab.2, caption=
Boundary conditions of flow field
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| 边界条件 | 类型 | 数值 |
| 进口 | 速度进口/(m·s−1) | 2 |
| 出口 | 压力出口/Pa | 0 |
| 壁面 | 无滑移 | − |
), ArticleFig(id=1324392909008667291, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=CN, label=表2, caption=
流场边界条件
, figureFileSmall=null, figureFileBig=null, tableContent=
| 边界条件 | 类型 | 数值 |
| 进口 | 速度进口/(m·s−1) | 2 |
| 出口 | 压力出口/Pa | 0 |
| 壁面 | 无滑移 | − |
), ArticleFig(id=1324392909079970460, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=EN, label=Tab.3, caption=
Physical property parameters of structural field
, figureFileSmall=null, figureFileBig=null, tableContent=
| 管路参数 | 数值 |
| 弹性模量/Pa | 2×1011 |
| 管路密度/(kg·m−3) | 7850 |
| 泊松比 | 0.3 |
), ArticleFig(id=1324392909147079325, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=CN, label=表3, caption=
结构场物性参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 管路参数 | 数值 |
| 弹性模量/Pa | 2×1011 |
| 管路密度/(kg·m−3) | 7850 |
| 泊松比 | 0.3 |
), ArticleFig(id=1324392909218382494, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=EN, label=Tab.4, caption=
Comparison of calculation time for different models
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| 计算方法 | 计算耗时 |
| 流致振动快速预报方法 | 1 min 15 s |
| 三维模型流固耦合法 | 4 h 4 min |
), ArticleFig(id=1324392909298074271, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=CN, label=表4, caption=
不同模型计算方法耗时对比
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| 计算方法 | 计算耗时 |
| 流致振动快速预报方法 | 1 min 15 s |
| 三维模型流固耦合法 | 4 h 4 min |
), ArticleFig(id=1324392909356794528, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=EN, label=Tab.5, caption=
Classification of fluid load analysis cases and setting of excitation sources
, figureFileSmall=null, figureFileBig=null, tableContent=
| 案例编号 | 激励源内容描述 | 所用计算方法 |
| 注:案例1~4用于梁模型载荷输入(集中载荷形式),案例5~6用于三维结构模型载荷映射(分布载荷形式)。 |
| 1 | 以所有管壁脉动压力进行面积分,所得集中载荷作为激励源 | 流致振动快速预报方法 |
| 2 | 以高压区内的脉动压力进行面积分,所得集中载荷作为激励源 | 流致振动快速预报方法 |
| 3 | 以孔板两端面的脉动压力进行面积分,所得轴向集中载荷作为激励源 | 流致振动快速预报方法 |
| 4 | 以强涡区内的脉动压力进行面积分,所得集中载荷作为激励源 | 流致振动快速预报方法 |
| 5 | 以强涡区内的脉动压力直接作为激励源(不积分) | 三维模型流固耦合法 |
| 6 | 以所有管壁的脉动压力场直接作为激励源(不积分) | 三维模型流固耦合法 |
), ArticleFig(id=1324392909461652129, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=CN, label=表5, caption=
流体载荷分析案例分类与激励源设定
, figureFileSmall=null, figureFileBig=null, tableContent=
| 案例编号 | 激励源内容描述 | 所用计算方法 |
| 注:案例1~4用于梁模型载荷输入(集中载荷形式),案例5~6用于三维结构模型载荷映射(分布载荷形式)。 |
| 1 | 以所有管壁脉动压力进行面积分,所得集中载荷作为激励源 | 流致振动快速预报方法 |
| 2 | 以高压区内的脉动压力进行面积分,所得集中载荷作为激励源 | 流致振动快速预报方法 |
| 3 | 以孔板两端面的脉动压力进行面积分,所得轴向集中载荷作为激励源 | 流致振动快速预报方法 |
| 4 | 以强涡区内的脉动压力进行面积分,所得集中载荷作为激励源 | 流致振动快速预报方法 |
| 5 | 以强涡区内的脉动压力直接作为激励源(不积分) | 三维模型流固耦合法 |
| 6 | 以所有管壁的脉动压力场直接作为激励源(不积分) | 三维模型流固耦合法 |
), ArticleFig(id=1324392909545538210, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=EN, label=Tab.6, caption=
Comparison of calculation time for different cases
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| 编号 | 计算耗时 | | 编号 | 计算耗时 |
| 案例1 | 1 min 15 s | | 案例5 | 2 h 5 min |
| 案例4 | 46 s | | 案例6 | 4 h 4 min |
), ArticleFig(id=1324392909629424291, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1324392886791438829, language=CN, label=表6, caption=
不同案例计算耗时对比
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| 编号 | 计算耗时 | | 编号 | 计算耗时 |
| 案例1 | 1 min 15 s | | 案例5 | 2 h 5 min |
| 案例4 | 46 s | | 案例6 | 4 h 4 min |
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