Article(id=1243880213583610250, tenantId=1146029695717560320, journalId=1240685776644648972, issueId=1243880211004113260, articleNumber=null, orderNo=null, doi=10.3969/j.issn.1007-7294.2024.10.013, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1713283200000, receivedDateStr=2024-04-17, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1774493753095, onlineDateStr=2026-03-26, pubDate=1729353600000, pubDateStr=2024-10-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1774493753095, onlineIssueDateStr=2026-03-26, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1774493753095, creator=13701087609, updateTime=1774493753095, updator=13701087609, issue=Issue{id=1243880211004113260, tenantId=1146029695717560320, journalId=1240685776644648972, year='2024', volume='28', issue='10', pageStart='1463', pageEnd='1632', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1774493752479, creator=13701087609, updateTime=1774494057708, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1243881491290243855, tenantId=1146029695717560320, journalId=1240685776644648972, issueId=1243880211004113260, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1243881491290243856, tenantId=1146029695717560320, journalId=1240685776644648972, issueId=1243880211004113260, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=1611, endPage=1621, ext={EN=ArticleExt(id=1243880214107898257, articleId=1243880213583610250, tenantId=1146029695717560320, journalId=1240685776644648972, language=EN, title=Irregular frequency problem of vibroacoustic simulation of a shaft-hull system, columnId=1241023038381158513, journalTitle=Journal of Ship Mechanics, columnName=Hydro/Structural Acoustics, runingTitle=null, highlight=null, articleAbstract=
If the fluid-structure interaction problem in frequency domain is solved by boundary element method, irregular frequencies will appear at the resonant frequencies of virtual interior fluid domain and exhibit large fluctuation. In order to investigate the underwater acoustic radiation properties of a full-scale submarine, a shaft-hull coupled system was established based on Suboff model. The FE/BE method was adopted to calculate the vibroacoustic radiation of the system in low- and medium-frequency. The closed virtual impedance surface (CVIS) method was respectively used and not used to study the influence of irregular frequencies. It is shown that: (1) for slender submarine hull with complicated shape, irregular frequencies are not only negligible, but even exhibit in continuous irregular bands; (2) enormous errors will occur if irregular frequencies are not eliminated, and convergence zones in far field of deep ocean environment are also“contaminated”; (3) for submarine whose the main body is constructed as slender cylindrical shell, the 1st irregular frequency can be obtained according to the analytical expression of the irregular frequencies of slender cylindrical shell, and the non-dimensional 1st irregular frequency is about ka=2.4.
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采用边界元方法求解频域流固耦合问题时,在内域虚拟流场的共振频率处会出现不规则频率问题,在这些不规则频率处辐射声场的求解常常出现较大波动。为研究实尺度潜艇的水下振动声辐射,本文建立基于Suboff艇型的轴系-艇体耦合系统。基于有限元/边界元法,分别采用/不采用消除不规则频率的封闭虚拟阻抗曲面(CVIS)法,计算轴系-艇体耦合系统的中低频段振动及辐射噪声。结果表明:(1)对于湿表面外形较复杂的细长艇体,同样会出现不规则频率,甚至连成“不规则频带”;(2)若不消除不规则频率,不规则频率处的辐射声压级有较大误差,在深海环境中可以“污染”到远场会聚区处;(3)对于主体结构为细长圆柱壳的艇形,首个不规则频率可参照与之尺度相当的细长圆柱壳不规则频率的表达式得出,首个无量纲不规则频率约为ka=2.4。
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, authorsList=段嘉希, 张林, 孙雪海, 殷丽君, 笪良龙)}, authors=[Author(id=1243880221766697678, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243880213583610250, orderNo=0, 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=1243880221892526804, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243880213583610250, authorId=1243880221766697678, language=EN, stringName=Jia-xi DUAN, firstName=Jia-xi, middleName=null, lastName=DUAN, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1.Department of Navigation Observation Communication, Naval Submarine Academy, Qingdao 266199, China
2.Qingdao Marine Science and Technology Center, Qingdao 266237, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1243880222009967326, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243880213583610250, authorId=1243880221766697678, language=CN, stringName=段嘉希, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1.海军潜艇学院 航海观通系,山东 青岛 266199
2.青岛海洋科技中心,山东 青岛 266237, bio={"content":"
段嘉希(1987-),男,博士,助理研究员
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段嘉希(1987-),男,博士,助理研究员
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1.Department of Navigation Observation Communication, Naval Submarine Academy, Qingdao 266199, China
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1.海军潜艇学院 航海观通系,山东 青岛 266199
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1.Department of Navigation Observation Communication, Naval Submarine Academy, Qingdao 266199, China
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1, 2, address=
1.海军潜艇学院 航海观通系,山东 青岛 266199
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1.Department of Navigation Observation Communication, Naval Submarine Academy, Qingdao 266199, China
2.Qingdao Marine Science and Technology Center, Qingdao 266237, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1243880223180178214, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243880213583610250, authorId=1243880222953685785, language=CN, stringName=笪良龙, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1.海军潜艇学院 航海观通系,山东 青岛 266199
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笪良龙(1967-),男,教授,博士生导师,E-mail:dalianglong@sohu.com。
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笪良龙(1967-),男,教授,博士生导师,E-mail:dalianglong@sohu.com。
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Finite element model of the shaft-hull coupled system, figureFileSmall=/v5j2Ny2MELZe5k7L9iMfw==, figureFileBig=H4tAQFX2cYWPqTyy2MdB2g==, tableContent=null), ArticleFig(id=1243880224325223259, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243880213583610250, language=CN, label=图1, caption=
轴系-艇体耦合系统的有限元模型, figureFileSmall=/v5j2Ny2MELZe5k7L9iMfw==, figureFileBig=H4tAQFX2cYWPqTyy2MdB2g==, tableContent=null), ArticleFig(id=1243880224606241637, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243880213583610250, language=EN, label=Fig.2, caption=
Boundary element and CVIS element of the submarine model, figureFileSmall=s+g1CmU5veT+r+fwBgi1WQ==, figureFileBig=Q8lIjejDGBJXD/kKMyi2mg==, tableContent=null), ArticleFig(id=1243880224706904939, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243880213583610250, language=CN, label=图2, caption=
艇体边界元及内域CVIS单元模型, figureFileSmall=s+g1CmU5veT+r+fwBgi1WQ==, figureFileBig=Q8lIjejDGBJXD/kKMyi2mg==, tableContent=null), ArticleFig(id=1243880224870482799, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243880213583610250, language=EN, label=Fig.3, caption=
Distribution of near field radiated SPL spots, figureFileSmall=m6vfTQQXamttU9EBMs4ACw==, figureFileBig=0EaZy2vqaUmiEg8b6PSjZw==, tableContent=null), ArticleFig(id=1243880224987923315, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243880213583610250, language=CN, label=图3, caption=
近场辐射声压测点分布, figureFileSmall=m6vfTQQXamttU9EBMs4ACw==, figureFileBig=0EaZy2vqaUmiEg8b6PSjZw==, tableContent=null), ArticleFig(id=1243880225105363831, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243880213583610250, language=EN, label=Fig.4, caption=
Irregular frequencies of cylindrical shell with various length-radius ratios, figureFileSmall=1d3o69U6kgIA31VAEx6h4Q==, figureFileBig=CT0bNc/V/gx47nzborXDUA==, tableContent=null), ArticleFig(id=1243880225239581561, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243880213583610250, language=CN, label=图4, caption=
各长径比的圆柱壳结构的水中不规则频率, figureFileSmall=1d3o69U6kgIA31VAEx6h4Q==, figureFileBig=CT0bNc/V/gx47nzborXDUA==, tableContent=null), ArticleFig(id=1243880225331856255, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243880213583610250, language=EN, label=Fig.5, caption=
Influences of irregular frequencies on field SPL at typical directions when the system is enduring axial excitation forces (Cvis: the irregular frequencies are eliminated; NoCvis: theirregular frequencies are not eliminated), figureFileSmall=KqMqMSKjA2gPRrRyMrD/fg==, figureFileBig=hvjPD3jfLdvNEdJP1HScHw==, tableContent=null), ArticleFig(id=1243880225474462597, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243880213583610250, language=CN, label=图5, caption=
轴向激励不规则频率对典型方位场点声压频响特性的影响(Cvis:消除不规则频率;NoCvis:未消除不规则频率), figureFileSmall=KqMqMSKjA2gPRrRyMrD/fg==, figureFileBig=hvjPD3jfLdvNEdJP1HScHw==, tableContent=null), ArticleFig(id=1243880225554154381, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243880213583610250, language=EN, label=Fig.6, caption=
Influences of irregular frequencies on field SPL at typical directions when the system is enduring vertical excitation forces(Cvis: the irregular frequencies are eliminated; NoCvis: the irregular frequencies are not eliminated), figureFileSmall=HXRqrlpGohWeq4rLynkTDg==, figureFileBig=D7uRjI45XjlNuOjqEag44w==, tableContent=null), ArticleFig(id=1243880225675789201, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243880213583610250, language=CN, label=图6, caption=
垂向激励不规则频率对典型方位场点声压频响特性的影响(Cvis:消除不规则频率;NoCvis:未消除不规则频率), figureFileSmall=HXRqrlpGohWeq4rLynkTDg==, figureFileBig=D7uRjI45XjlNuOjqEag44w==, tableContent=null), ArticleFig(id=1243880225759675286, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243880213583610250, language=EN, label=Fig.7, caption=
Munk underwater acoustic channel, figureFileSmall=VixIDAcRyvQaUMVXhMcCRQ==, figureFileBig=YM4e5O7D5cCMrM+4HH4MVw==, tableContent=null), ArticleFig(id=1243880225872921496, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243880213583610250, language=CN, label=图7, caption=
深海Munk声道, figureFileSmall=VixIDAcRyvQaUMVXhMcCRQ==, figureFileBig=YM4e5O7D5cCMrM+4HH4MVw==, tableContent=null), ArticleFig(id=1243880225977779102, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243880213583610250, language=EN, label=Fig.8, caption=
Radiated SPL in convergence zones in the direction of 30° when the system is excited axially (Cvis: the irregular frequencies are eliminated; NoCvis: the irregular frequencies are not eliminated), figureFileSmall=ZdmxA4puUzFZpX/cH6B6Kg==, figureFileBig=G+Hx5Mhcd8uubq5hFVloYg==, tableContent=null), ArticleFig(id=1243880226074248098, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243880213583610250, language=CN, label=图8, caption=
轴向激励工况30°方位辐射噪声的会聚区特性(Cvis:消除不规则频率;NoCvis:未消除不规则频率), figureFileSmall=ZdmxA4puUzFZpX/cH6B6Kg==, figureFileBig=G+Hx5Mhcd8uubq5hFVloYg==, tableContent=null), ArticleFig(id=1243880226174911399, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243880213583610250, language=EN, label=Fig.9, caption=
Radiated SPL in convergence zones in the direction of 30° when the system is excited vertically (Cvis: the irregular frequencies are eliminated; NoCvis: the irregular frequencies are not eliminated), figureFileSmall=uY7zwtgbD52JIsWN6LFQAA==, figureFileBig=9EdqOnlHcNcM+gIhbiRQ6Q==, tableContent=null), ArticleFig(id=1243880226271380396, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243880213583610250, language=CN, label=图9, caption=
垂向激励工况30°方位辐射噪声的会聚区特性(Cvis:消除不规则频率;NoCvis:未消除不规则频率), figureFileSmall=uY7zwtgbD52JIsWN6LFQAA==, figureFileBig=9EdqOnlHcNcM+gIhbiRQ6Q==, tableContent=null), ArticleFig(id=1243880226338489264, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243880213583610250, language=EN, label=Fig.10, caption=
Radiated SPL in convergence zones in the direction of 80° when the system is excited axially (Cvis: the irregular frequencies are eliminated; NoCvis: the irregular frequencies are not eliminated), figureFileSmall=CenTt4ERrvrg94ZCEE9tBw==, figureFileBig=9QQZ7aE9cxrCpIcmAc7MUw==, tableContent=null), ArticleFig(id=1243880226426569653, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243880213583610250, language=CN, label=图10, caption=
轴向激励工况80°方位辐射噪声的会聚区特性(Cvis:消除不规则频率;NoCvis:未消除不规则频率), figureFileSmall=CenTt4ERrvrg94ZCEE9tBw==, figureFileBig=9QQZ7aE9cxrCpIcmAc7MUw==, tableContent=null), ArticleFig(id=1243880226598536122, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243880213583610250, language=EN, label=Fig.11, caption=
Radiated SPL in convergence zones at the 265 Hz when the system is excited axially (Cvis: the irregular frequencies are eliminated; NoCvis: the irregular frequencies are not eliminated), figureFileSmall=wCQtvoruBkcBzEOlot8Tkw==, figureFileBig=eVfu8oDcWLBdODNpW0ribQ==, tableContent=null), ArticleFig(id=1243880226686616511, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243880213583610250, language=CN, label=图11, caption=
不规则频率对轴向工况265 Hz辐射噪声会聚区效应的影响(Cvis:消除不规则频率;NoCvis:未消除不规则频率), figureFileSmall=wCQtvoruBkcBzEOlot8Tkw==, figureFileBig=eVfu8oDcWLBdODNpW0ribQ==, tableContent=null), ArticleFig(id=1243880226783085509, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243880213583610250, language=EN, label=Tab.1, caption=
Main parameters of the shaft-hull coupled system
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数名及单位 | 数值 | 参数名及单位 | 数值 |
|---|
| 艇长/m | 74.28 | 肋骨板厚/mm | 24 |
| 主艇体半径/m | 4.28 | 轴系外径/mm | 150 |
| 耐压壳板厚/mm | 32 | 轴系内径/mm | 75 |
| 肋骨间距/m | 1.668 | | |
), ArticleFig(id=1243880226871165895, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243880213583610250, language=CN, label=表1, caption=
轴-艇体耦合系统主要参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数名及单位 | 数值 | 参数名及单位 | 数值 |
|---|
| 艇长/m | 74.28 | 肋骨板厚/mm | 24 |
| 主艇体半径/m | 4.28 | 轴系外径/mm | 150 |
| 耐压壳板厚/mm | 32 | 轴系内径/mm | 75 |
| 肋骨间距/m | 1.668 | | |
), ArticleFig(id=1243880226971829195, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243880213583610250, language=EN, label=Tab.2, caption=
Irregular frequencies of a cylindrical shell with same dimension as the shaft-hull coupled system(n=0, 1; q=1; m=1, 2, 3, …)
, figureFileSmall=null, figureFileBig=null, tableContent=
| 不规则频率 | 轴向波数m |
|---|
| 0 | 1 | 2 | 3 | 4 | 5 | …… |
|---|
| fm01/Hz | 134.148 | 134.526 | 135.659 | 137.525 | 140.095 | 143.333 | …… |
| fm11/Hz | 213.744 | 213.982 | 214.695 | 215.879 | 217.526 | 219.625 | …… |
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与轴系-艇体系统等尺度规则圆柱壳的不规则频率分布(取n=0,1;q=1;m=1,2,3,…)
, figureFileSmall=null, figureFileBig=null, tableContent=
| 不规则频率 | 轴向波数m |
|---|
| 0 | 1 | 2 | 3 | 4 | 5 | …… |
|---|
| fm01/Hz | 134.148 | 134.526 | 135.659 | 137.525 | 140.095 | 143.333 | …… |
| fm11/Hz | 213.744 | 213.982 | 214.695 | 215.879 | 217.526 | 219.625 | …… |
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