Article(id=1243306061936051109, tenantId=1146029695717560320, journalId=1240685776644648972, issueId=1243306060832944396, articleNumber=null, orderNo=null, doi=10.3969/j.issn.1007-7294.2025.03.014, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1727107200000, receivedDateStr=2024-09-24, revisedDate=null, revisedDateStr=null, acceptedDate=null, acceptedDateStr=null, onlineDate=1774356864675, onlineDateStr=2026-03-24, pubDate=1742400000000, pubDateStr=2025-03-20, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1774356864675, onlineIssueDateStr=2026-03-24, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1774356864675, creator=13701087609, updateTime=1774356864675, updator=13701087609, issue=Issue{id=1243306060832944396, tenantId=1146029695717560320, journalId=1240685776644648972, year='2025', volume='29', issue='3', pageStart='337', pageEnd='516', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1774356864412, creator=13701087609, updateTime=1774357001622, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1243306636396310539, tenantId=1146029695717560320, journalId=1240685776644648972, issueId=1243306060832944396, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1243306636396310540, tenantId=1146029695717560320, journalId=1240685776644648972, issueId=1243306060832944396, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=497, endPage=505, ext={EN=ArticleExt(id=1243306062141572009, articleId=1243306061936051109, tenantId=1146029695717560320, journalId=1240685776644648972, language=EN, title=Application of improved homogenization theory in fast prediction of acoustic coating absorption coefficient, columnId=1241023038381158513, journalTitle=Journal of Ship Mechanics, columnName=Hydro/Structural Acoustics, runingTitle=null, highlight=null, articleAbstract=
This paper aims to propose an improved theory of homogenization for acoustic coatings, the acoustic coating with periodic cavities can be considered equivalent to a uniform layer, thus improving the computational efficiency of sound absorption. Based on the traditional homogenization theory, parameters of equivalent density, modulus, and thickness for the acoustic coating by are derived incorporating the potential flow theory and the Minnaert resonance scattering theory. The sound absorption coefficient of the coating is then obtained through analytical calculation. This paper specifically addresses the effectiveness, efficiency, and adaptability of the proposed algorithm, thus offering technical support for accurately predicting the sound absorption coefficient of acoustic coatings within the middle and low-frequency range.
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本文提出一种改进的声学覆盖层均匀等效理论,将含周期空腔的声学覆盖层等效为均匀层以提高声吸收计算效率。在传统均匀化理论的基础上,综合考虑势流理论、Minnaert共振散射理论推导含周期球形空腔声学覆盖层的等效密度、等效模量以及等效厚度三个关键参数,通过解析计算获取覆盖层吸声系数。探讨了该算法的有效性、高效性以及适应性,可为实现声学覆盖层中低频吸声系数快速预报提供技术支撑。
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Schematic diagram of acoustic coating equivalization in 3D case, figureFileSmall=8J5SLTGV7PxOy/QA4kBa1w==, figureFileBig=oPK+8KneqCivLF5fJHsmiQ==, tableContent=null), ArticleFig(id=1243306071813636361, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243306061936051109, language=CN, label=图1, caption=
声学覆盖层三维等效示意图, figureFileSmall=8J5SLTGV7PxOy/QA4kBa1w==, figureFileBig=oPK+8KneqCivLF5fJHsmiQ==, tableContent=null), ArticleFig(id=1243306072069488921, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243306061936051109, language=EN, label=Fig.2, caption=
Schematic diagram of acoustic coating equivalization in 2D case, figureFileSmall=mZuVdUZcjl/2DYowSu6WUw==, figureFileBig=+A3dOcWEBJ2pnfpOi9Y/jg==, tableContent=null), ArticleFig(id=1243306072212095264, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243306061936051109, language=CN, label=图2, caption=
声学覆盖层二维等效示意图, figureFileSmall=mZuVdUZcjl/2DYowSu6WUw==, figureFileBig=+A3dOcWEBJ2pnfpOi9Y/jg==, tableContent=null), ArticleFig(id=1243306072304369957, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243306061936051109, language=EN, label=Fig.3, caption=
Finite element model and algorithm validation, figureFileSmall=s02GTULNRDxpoB4e90946Q==, figureFileBig=x2It7j43B5Btqo7rL7iVXw==, tableContent=null), ArticleFig(id=1243306072392450348, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243306061936051109, language=CN, label=图3, caption=
有限元模型与算法验证, figureFileSmall=s02GTULNRDxpoB4e90946Q==, figureFileBig=x2It7j43B5Btqo7rL7iVXw==, tableContent=null), ArticleFig(id=1243306072497307955, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243306061936051109, language=EN, label=Fig.4, caption=
Comparison of sound absorption coefficients for different cavity shapes, figureFileSmall=wgJE/KY+EnS30HGKFnnZ3w==, figureFileBig=mNXoSY5ET0fuw/rcGRqw+A==, tableContent=null), ArticleFig(id=1243306072694440245, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243306061936051109, language=CN, label=图4, caption=
不同形状空腔吸声系数对比, figureFileSmall=wgJE/KY+EnS30HGKFnnZ3w==, figureFileBig=mNXoSY5ET0fuw/rcGRqw+A==, tableContent=null), ArticleFig(id=1243306072786714937, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243306061936051109, language=EN, label=Fig.5, caption=
Comparison of sound absorption coefficients using different I values, figureFileSmall=Ve/B4obDBUw5Xj+Qclrcvg==, figureFileBig=DWkYjLBttp95VKnpSYjGfw==, tableContent=null), ArticleFig(id=1243306072878989631, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243306061936051109, language=CN, label=图5, caption=
不同文献参数I计算的吸声系数对比, figureFileSmall=Ve/B4obDBUw5Xj+Qclrcvg==, figureFileBig=DWkYjLBttp95VKnpSYjGfw==, tableContent=null), ArticleFig(id=1243306072988041540, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243306061936051109, language=EN, label=Fig.6, caption=
Comparison of sound absorption coefficients using different a/dy, figureFileSmall=wizhEC/Zjn6qwFDMG2ec1w==, figureFileBig=qiKvnfa7bbXbN+mSMi1hEQ==, tableContent=null), ArticleFig(id=1243306073113870665, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243306061936051109, language=CN, label=图6, caption=
选取不同a/dy计算吸声系数, figureFileSmall=wizhEC/Zjn6qwFDMG2ec1w==, figureFileBig=qiKvnfa7bbXbN+mSMi1hEQ==, tableContent=null), ArticleFig(id=1243306073193562446, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243306061936051109, language=EN, label=Fig.7, caption=
Comparison of sound absorption coefficients using different β, figureFileSmall=6yvDZ0ltHhWddjILHqaD7w==, figureFileBig=ZFVfUGjHqADZcaqwYh6aSg==, tableContent=null), ArticleFig(id=1243306073323585878, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243306061936051109, language=CN, label=图7, caption=
β取值对吸声系数的影响, figureFileSmall=6yvDZ0ltHhWddjILHqaD7w==, figureFileBig=ZFVfUGjHqADZcaqwYh6aSg==, tableContent=null), ArticleFig(id=1243306073436832087, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243306061936051109, language=EN, label=Fig.8, caption=
Comparison of sound absorption coefficients using different Young's moduli, figureFileSmall=lczehPy9ItJIF13XoF2fEA==, figureFileBig=KOLRGyvLOeVbiflB0hlUUA==, tableContent=null), ArticleFig(id=1243306073587827042, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243306061936051109, language=CN, label=图8, caption=
不同杨氏模量计算吸声系数对比, figureFileSmall=lczehPy9ItJIF13XoF2fEA==, figureFileBig=KOLRGyvLOeVbiflB0hlUUA==, tableContent=null), ArticleFig(id=1243306073692684648, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243306061936051109, language=EN, label=Fig.9, caption=
Comparison of sound absorption coefficients using different matrix parameters, figureFileSmall=EaFKlQ+1JXhI3d/5VgzDdw==, figureFileBig=42Y5RYn/sTkrWQiUF06S1A==, tableContent=null), ArticleFig(id=1243306073801736562, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243306061936051109, language=CN, label=图9, caption=
不同基体参数计算吸声系数对比, figureFileSmall=EaFKlQ+1JXhI3d/5VgzDdw==, figureFileBig=42Y5RYn/sTkrWQiUF06S1A==, tableContent=null), ArticleFig(id=1243306073931759994, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243306061936051109, language=EN, label=Tab.1, caption=
Material parameters
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| E/Pa | ν | η | ρ/(kg·m−3) | c/(m·s−1) |
|---|
| 橡胶 | 7.1×107 | 0.497 | 0.2 | 1100 | / |
| 水 | / | / | / | 1000 | 1500 |
| 钢 | 2.1×1011 | 0.25 | / | 7800 | / |
), ArticleFig(id=1243306074040811905, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243306061936051109, language=CN, label=表1, caption=
材料参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| E/Pa | ν | η | ρ/(kg·m−3) | c/(m·s−1) |
|---|
| 橡胶 | 7.1×107 | 0.497 | 0.2 | 1100 | / |
| 水 | / | / | / | 1000 | 1500 |
| 钢 | 2.1×1011 | 0.25 | / | 7800 | / |
), ArticleFig(id=1243306074250527112, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243306061936051109, language=EN, label=Tab.2, caption=
Comparison of computational efficiency
, figureFileSmall=null, figureFileBig=null, tableContent=
| 算法 | 单元数 | 频率范围 | 计算时长 |
|---|
| 有限元法 | 122 013 | 100 Hz~10 kHz | 1124 s |
| 本文算法 | 0 | 100 Hz~10 kHz | 0.7 s |
), ArticleFig(id=1243306074489602451, tenantId=1146029695717560320, journalId=1240685776644648972, articleId=1243306061936051109, language=CN, label=表2, caption=
计算效率对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 算法 | 单元数 | 频率范围 | 计算时长 |
|---|
| 有限元法 | 122 013 | 100 Hz~10 kHz | 1124 s |
| 本文算法 | 0 | 100 Hz~10 kHz | 0.7 s |
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