Article(id=1244336744573813573, tenantId=1146029695717560320, journalId=1244311425741537314, issueId=1244336743298740932, articleNumber=null, orderNo=null, doi=10.16450/j.cnki.issn.1004-6801.2025.05.012, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1676476800000, receivedDateStr=2023-02-16, revisedDate=1678636800000, revisedDateStr=2023-03-13, acceptedDate=null, acceptedDateStr=null, onlineDate=1774602598564, onlineDateStr=2026-03-27, pubDate=1759248000000, pubDateStr=2025-10-01, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1774602598564, onlineIssueDateStr=2026-03-27, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1774602598564, creator=13701087609, updateTime=1774602598564, updator=13701087609, issue=Issue{id=1244336743298740932, tenantId=1146029695717560320, journalId=1244311425741537314, year='2025', volume='45', issue='5', pageStart='855', pageEnd='1056', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1774602598261, creator=13701087609, updateTime=1774603435030, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1244340253042000577, tenantId=1146029695717560320, journalId=1244311425741537314, issueId=1244336743298740932, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1244340253042000578, tenantId=1146029695717560320, journalId=1244311425741537314, issueId=1244336743298740932, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=944, endPage=950, ext={EN=ArticleExt(id=1244336745219736394, articleId=1244336744573813573, tenantId=1146029695717560320, journalId=1244311425741537314, language=EN, title=Prediction Models of Airflow Resistivity of Kapok Felt Having Two Fiber Cross‑Sectional Shapes, columnId=1244336744728998604, journalTitle=Journal of Vibration,Measurement and Diagnosis, columnName=PAPER, runingTitle=null, highlight=null, articleAbstract=
To address the inadequacy of existing models for predicting the flow resistivity of kapok felt,the airflow resistivity of kapok felt with different bulk densities is tested. Initially,the airflow resistivity of kapok felt is calculated using empirical and theoretical models commonly used in fibrous materials. Subsequently,a new empirical model suitable for predicting the flow resistivity of kapok felt is developed by fitting the experimental data. Finally,considering the cross-sectional geometries and arrangement of kapok fibers at different bulk densities,theoretical models for the flow resistivity of kapok felt are derived by determining the average velocity and frictional force within micro-units,for both circular and flattened fiber cross-sections,based on the Tarnow model and the Hagen-Poiseuille flow assumption. The models are further modified using a flattening ratio parameter. Results demonstrate that compared to the measured values,the prediction accuracy of existing models for kapok felt flow resistivity is low. The modified model is applicable to transitional states between the two cross-sectional geometries. Within the bulk density range of 20 to 180 kg/m³,the modified model exhibits high prediction accuracy.
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针对现有模型不适用于木棉纤维材料流阻率预测的问题,测试了不同体密度的木棉毡。首先,使用已有的预测模型计算了木棉毡的流阻率;其次,通过对测试值拟合,给出了适用于木棉毡流阻率预测的经验模型;最后,考虑不同体密度下木棉纤维的截面形状与排布,基于Tarnow模型和哈根‑泊肃叶流动假设,通过推导微单元中的平均速度和摩擦力,给出了纤维圆形截面和扁平截面下木棉毡流阻率的分析模型,并使用压扁率对模型进行了修正。结果表明:与测试值对比,已有模型的木棉毡流阻率预测精度较低;修正模型适用于介于两种截面之间的过渡状态,修正后的模型在体密度20~180 kg/m3范围内具有较高的预测精度。
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谢新星,男,1986年10月生,博士。主要研究方向为汽车新型声学材料开发、仿真与测试技术。曾发表《车用轻量化ABA材料吸隔声特性的计算方法研究》(《湖北汽车工业学院学报》2018年第32卷第4期)等论文。 E‑mail:271735232@qq.com
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谢新星,男,1986年10月生,博士。主要研究方向为汽车新型声学材料开发、仿真与测试技术。曾发表《车用轻量化ABA材料吸隔声特性的计算方法研究》(《湖北汽车工业学院学报》2018年第32卷第4期)等论文。 E‑mail:271735232@qq.com
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谢新星,男,1986年10月生,博士。主要研究方向为汽车新型声学材料开发、仿真与测试技术。曾发表《车用轻量化ABA材料吸隔声特性的计算方法研究》(《湖北汽车工业学院学报》2018年第32卷第4期)等论文。 E‑mail:271735232@qq.com
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1.School of Mechanical and Automotive Engineering,South China University of Technology Guangzhou,510641,China), AuthorCompanyExt(id=1244351829400728044, tenantId=1146029695717560320, journalId=1244311425741537314, articleId=1244336744573813573, companyId=1244351829362979302, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
1华南理工大学机械与汽车工程学院 广州,510641)]), AuthorCompany(id=1244351829526557173, tenantId=1146029695717560320, journalId=1244311425741537314, articleId=1244336744573813573, xref=2., ext=[AuthorCompanyExt(id=1244351829534945783, tenantId=1146029695717560320, journalId=1244311425741537314, articleId=1244336744573813573, companyId=1244351829526557173, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2.Ningbo Tuopu Group Co.,Ltd. Ningbo,315800,China), AuthorCompanyExt(id=1244351829547528696, tenantId=1146029695717560320, journalId=1244311425741537314, articleId=1244336744573813573, companyId=1244351829526557173, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
2宁波拓普集团股份有限公司 宁波,315800)])], figs=[ArticleFig(id=1244351833968325294, tenantId=1146029695717560320, journalId=1244311425741537314, articleId=1244336744573813573, language=EN, label=Fig.1, caption=
Scanning electron microscope photo of fiber arrangement and cross section in 20 kg/m3 kapok felt, figureFileSmall=KH6IN3tKkOkv0pCHsxlDtg==, figureFileBig=z0u5MBQ+UnKifyezrIEi/g==, tableContent=null), ArticleFig(id=1244351834102543029, tenantId=1146029695717560320, journalId=1244311425741537314, articleId=1244336744573813573, language=CN, label=图1, caption=
体密度为20 kg/m3的木棉毡的纤维排布和断面电镜图, figureFileSmall=KH6IN3tKkOkv0pCHsxlDtg==, figureFileBig=z0u5MBQ+UnKifyezrIEi/g==, tableContent=null), ArticleFig(id=1244351834228372153, tenantId=1146029695717560320, journalId=1244311425741537314, articleId=1244336744573813573, language=EN, label=Fig.2, caption=
Scanning electron microscope photo of fiber arrangement and cross section in 70 kg/m3 kapok felt, figureFileSmall=sV8NK3pn73COvKnsObAuAA==, figureFileBig=WBvApX1y7Gzkz7CMyFsJ1A==, tableContent=null), ArticleFig(id=1244351834383561409, tenantId=1146029695717560320, journalId=1244311425741537314, articleId=1244336744573813573, language=CN, label=图2, caption=
体密度为70 kg/m3的木棉毡的纤维排布和断面电镜图, figureFileSmall=sV8NK3pn73COvKnsObAuAA==, figureFileBig=WBvApX1y7Gzkz7CMyFsJ1A==, tableContent=null), ArticleFig(id=1244351834488419016, tenantId=1146029695717560320, journalId=1244311425741537314, articleId=1244336744573813573, language=EN, label=Fig.3, caption=
Scanning electron microscope photo of fiber arrangement and cross section in 150 kg/m3 kapok felt, figureFileSmall=092xbYlGsFeZ/HMb544tpQ==, figureFileBig=bAk07WyxMtrgXCnCYPfw5g==, tableContent=null), ArticleFig(id=1244351834584888013, tenantId=1146029695717560320, journalId=1244311425741537314, articleId=1244336744573813573, language=CN, label=图3, caption=
体密度为150 kg/m3的木棉毡的纤维排布和断面电镜图, figureFileSmall=092xbYlGsFeZ/HMb544tpQ==, figureFileBig=bAk07WyxMtrgXCnCYPfw5g==, tableContent=null), ArticleFig(id=1244351834685551317, tenantId=1146029695717560320, journalId=1244311425741537314, articleId=1244336744573813573, language=EN, label=Fig.4, caption=
Airflow resistivity test principle, figureFileSmall=rpU/63F02klMGs7r71yO9Q==, figureFileBig=Hbhg0eLTSb4fjPXbkiyjTw==, tableContent=null), ArticleFig(id=1244351834786214620, tenantId=1146029695717560320, journalId=1244311425741537314, articleId=1244336744573813573, language=CN, label=图4, caption=
流阻率测试原理示意图, figureFileSmall=rpU/63F02klMGs7r71yO9Q==, figureFileBig=Hbhg0eLTSb4fjPXbkiyjTw==, tableContent=null), ArticleFig(id=1244351834882683619, tenantId=1146029695717560320, journalId=1244311425741537314, articleId=1244336744573813573, language=EN, label=Fig.5, caption=
Test results of airflow resistivity of kapok felt with different density, figureFileSmall=4KfpxgJkCdDVecHgZVWqjw==, figureFileBig=/WniF+ksaBM9oCpEjowJ1Q==, tableContent=null), ArticleFig(id=1244351834966569705, tenantId=1146029695717560320, journalId=1244311425741537314, articleId=1244336744573813573, language=CN, label=图5, caption=
不同体密度木棉毡的流阻率测试值, figureFileSmall=4KfpxgJkCdDVecHgZVWqjw==, figureFileBig=/WniF+ksaBM9oCpEjowJ1Q==, tableContent=null), ArticleFig(id=1244351835050455793, tenantId=1146029695717560320, journalId=1244311425741537314, articleId=1244336744573813573, language=EN, label=Fig.6, caption=
Comparison of the calculated airflow resistivity of different models with test results, figureFileSmall=NJOewcM/TwOf0nvcrRUsIA==, figureFileBig=I3XJBCQwEeBoSg5abO7IkQ==, tableContent=null), ArticleFig(id=1244351835163702008, tenantId=1146029695717560320, journalId=1244311425741537314, articleId=1244336744573813573, language=CN, label=图6, caption=
不同模型的流阻率计算值与测试值的对比图, figureFileSmall=NJOewcM/TwOf0nvcrRUsIA==, figureFileBig=I3XJBCQwEeBoSg5abO7IkQ==, tableContent=null), ArticleFig(id=1244351835268559614, tenantId=1146029695717560320, journalId=1244311425741537314, articleId=1244336744573813573, language=EN, label=Fig.7, caption=
Comparison of the fitted results of kapok felt with test results, figureFileSmall=UdDMslLUblZIjVT/+gx0YQ==, figureFileBig=OutPz/QEIn/dIevCp15SsA==, tableContent=null), ArticleFig(id=1244351835365028613, tenantId=1146029695717560320, journalId=1244311425741537314, articleId=1244336744573813573, language=CN, label=图7, caption=
木棉毡流阻率拟合值与测试值对比图, figureFileSmall=UdDMslLUblZIjVT/+gx0YQ==, figureFileBig=OutPz/QEIn/dIevCp15SsA==, tableContent=null), ArticleFig(id=1244351835444720395, tenantId=1146029695717560320, journalId=1244311425741537314, articleId=1244336744573813573, language=EN, label=Fig.8, caption=
Simplified diagram of kapok fiber distribution in round‑hollow model, figureFileSmall=NobH0XudjSCQraV+kjf3Ag==, figureFileBig=fKD7eUkQCox0pcin4YnvOw==, tableContent=null), ArticleFig(id=1244351835532800785, tenantId=1146029695717560320, journalId=1244311425741537314, articleId=1244336744573813573, language=CN, label=图8, caption=
圆管模型中纤维排布简化示意图, figureFileSmall=NobH0XudjSCQraV+kjf3Ag==, figureFileBig=fKD7eUkQCox0pcin4YnvOw==, tableContent=null), ArticleFig(id=1244351835620881174, tenantId=1146029695717560320, journalId=1244311425741537314, articleId=1244336744573813573, language=EN, label=Fig.9, caption=
Comparison of the calculated results of the round‑ hollow model with test results, figureFileSmall=iIRJOi8CcsydN3/ckU87SA==, figureFileBig=plBzPK5m0S41Z5KTpjFiKw==, tableContent=null), ArticleFig(id=1244351835713155866, tenantId=1146029695717560320, journalId=1244311425741537314, articleId=1244336744573813573, language=CN, label=图9, caption=
圆管叠加模型的计算值与测试值的对比, figureFileSmall=iIRJOi8CcsydN3/ckU87SA==, figureFileBig=plBzPK5m0S41Z5KTpjFiKw==, tableContent=null), ArticleFig(id=1244351835822207775, tenantId=1146029695717560320, journalId=1244311425741537314, articleId=1244336744573813573, language=EN, label=Fig.10, caption=
Simplified distribution of flattened kapok fibers, figureFileSmall=e4kb+N501YZKN53Q+lfqMg==, figureFileBig=WadWlckSA62WpbqBy/juIg==, tableContent=null), ArticleFig(id=1244351835922871077, tenantId=1146029695717560320, journalId=1244311425741537314, articleId=1244336744573813573, language=CN, label=图10, caption=
简化的扁平木棉纤维排布示意图, figureFileSmall=e4kb+N501YZKN53Q+lfqMg==, figureFileBig=WadWlckSA62WpbqBy/juIg==, tableContent=null), ArticleFig(id=1244351836057088810, tenantId=1146029695717560320, journalId=1244311425741537314, articleId=1244336744573813573, language=EN, label=Fig.11, caption=
Simplified cross section of flattened kapok fibers, figureFileSmall=4xmFgUUiqEhM9FZsI0H8Iw==, figureFileBig=sE+S3XQCeYmA1V6UL8gYxg==, tableContent=null), ArticleFig(id=1244351836136780589, tenantId=1146029695717560320, journalId=1244311425741537314, articleId=1244336744573813573, language=CN, label=图11, caption=
压扁后的木棉纤维截面示意图, figureFileSmall=4xmFgUUiqEhM9FZsI0H8Iw==, figureFileBig=sE+S3XQCeYmA1V6UL8gYxg==, tableContent=null), ArticleFig(id=1244351836208083761, tenantId=1146029695717560320, journalId=1244311425741537314, articleId=1244336744573813573, language=EN, label=Fig.12, caption=
Comparison of the calculated results of the flat‑slit model with test results, figureFileSmall=OJAgjI8ooGp2VsHwUed6PQ==, figureFileBig=s8zqVG6wtfPXz79O1zb+UQ==, tableContent=null), ArticleFig(id=1244351836287775540, tenantId=1146029695717560320, journalId=1244311425741537314, articleId=1244336744573813573, language=CN, label=图12, caption=
扁平叠加模型的计算值与测试值的对比图, figureFileSmall=OJAgjI8ooGp2VsHwUed6PQ==, figureFileBig=s8zqVG6wtfPXz79O1zb+UQ==, tableContent=null), ArticleFig(id=1244351836413604663, tenantId=1146029695717560320, journalId=1244311425741537314, articleId=1244336744573813573, language=EN, label=Fig.13, caption=
Comparison of calculated results of the round‑hollow model and flat‑slit model with test results, figureFileSmall=eUQwyvHMP0+0T0LoqzlAyg==, figureFileBig=CliHUOg2HhJmibtrpIAc5A==, tableContent=null), ArticleFig(id=1244351836514267962, tenantId=1146029695717560320, journalId=1244311425741537314, articleId=1244336744573813573, language=CN, label=图13, caption=
圆管叠加模型和扁平叠加模型的计算值和测试值的对比图, figureFileSmall=eUQwyvHMP0+0T0LoqzlAyg==, figureFileBig=CliHUOg2HhJmibtrpIAc5A==, tableContent=null), ArticleFig(id=1244351836640097087, tenantId=1146029695717560320, journalId=1244311425741537314, articleId=1244336744573813573, language=EN, label=Fig.14, caption=
Comparison of the calculated results of the optimized model with test results, figureFileSmall=H0ryABCFQC2oVJ8ziDvDvg==, figureFileBig=kuGSXj5lsyIP7xe+qTJNkA==, tableContent=null), ArticleFig(id=1244351838141657922, tenantId=1146029695717560320, journalId=1244311425741537314, articleId=1244336744573813573, language=CN, label=图14, caption=
修正模型的计算值和测试值的对比, figureFileSmall=H0ryABCFQC2oVJ8ziDvDvg==, figureFileBig=kuGSXj5lsyIP7xe+qTJNkA==, tableContent=null), ArticleFig(id=1244351838254904133, tenantId=1146029695717560320, journalId=1244311425741537314, articleId=1244336744573813573, language=EN, label=Tab.1, caption=
Information of different bulk density kapok felt
, figureFileSmall=null, figureFileBig=null, tableContent=
| 样品名称 | 体密度/(kg⋅m-3) | 厚度/mm |
|---|
| 低密度木棉毡 | 20 | 35 |
| 中密度木棉毡 | 70 | 10 |
| 高密度木棉毡 | 150 | 5 |
), ArticleFig(id=1244351838338790217, tenantId=1146029695717560320, journalId=1244311425741537314, articleId=1244336744573813573, language=CN, label=表1, caption=
不同密度的木棉毡信息
, figureFileSmall=null, figureFileBig=null, tableContent=
| 样品名称 | 体密度/(kg⋅m-3) | 厚度/mm |
|---|
| 低密度木棉毡 | 20 | 35 |
| 中密度木棉毡 | 70 | 10 |
| 高密度木棉毡 | 150 | 5 |
), ArticleFig(id=1244351838401704781, tenantId=1146029695717560320, journalId=1244311425741537314, articleId=1244336744573813573, language=EN, label=Tab.2, caption=
Parameters of kapok fiber
, figureFileSmall=null, figureFileBig=null, tableContent=
| 木棉纤维参数 | 分布范围 | 平均值 |
|---|
| 外径/μm | 16~24 | 20.64 |
| 内径/μm | 14~22 | 18.64 |
| 纤维壁厚度/μm | 0.8~1.2 | 1.0 |
| 纤维长度/mm | 8~34[16] | 21 |
), ArticleFig(id=1244351838506562386, tenantId=1146029695717560320, journalId=1244311425741537314, articleId=1244336744573813573, language=CN, label=表2, caption=
木棉纤维参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 木棉纤维参数 | 分布范围 | 平均值 |
|---|
| 外径/μm | 16~24 | 20.64 |
| 内径/μm | 14~22 | 18.64 |
| 纤维壁厚度/μm | 0.8~1.2 | 1.0 |
| 纤维长度/mm | 8~34[16] | 21 |
), ArticleFig(id=1244351838582059861, tenantId=1146029695717560320, journalId=1244311425741537314, articleId=1244336744573813573, language=EN, label=Tab.3, caption=
Summary of empirical models for airflow resistivity prediction
, figureFileSmall=null, figureFileBig=null, tableContent=
| 模型 | K1 | K2 | 纤维类型 |
|---|
| 文献[4]模型 | 1.530 | 3.18×10-9 | 玻璃纤维 |
| 文献[5]模型 | 1.404 | 2.83×10-8 | PET纤维 |
| 文献[6]模型 | 1.530 | 1.50×10-8 | PET纤维 |
| 文献[7]模型 | 1.516 | 1.94×10-8 | 热黏合棉纤维 |
| 文献[8]模型 | 1.565 | 1.339 5×10-8 | PET纤维 |
), ArticleFig(id=1244351838670140247, tenantId=1146029695717560320, journalId=1244311425741537314, articleId=1244336744573813573, language=CN, label=表3, caption=
流阻率预测经验模型汇总表
, figureFileSmall=null, figureFileBig=null, tableContent=
| 模型 | K1 | K2 | 纤维类型 |
|---|
| 文献[4]模型 | 1.530 | 3.18×10-9 | 玻璃纤维 |
| 文献[5]模型 | 1.404 | 2.83×10-8 | PET纤维 |
| 文献[6]模型 | 1.530 | 1.50×10-8 | PET纤维 |
| 文献[7]模型 | 1.516 | 1.94×10-8 | 热黏合棉纤维 |
| 文献[8]模型 | 1.565 | 1.339 5×10-8 | PET纤维 |
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