Article(id=1149780468469560151, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1149780466032669506, articleNumber=null, orderNo=null, doi=10.12404/j.issn.1671-1815.2403297, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1714924800000, receivedDateStr=2024-05-06, revisedDate=1735833600000, revisedDateStr=2025-01-03, acceptedDate=null, acceptedDateStr=null, onlineDate=1752058625571, onlineDateStr=2025-07-09, pubDate=1744041600000, pubDateStr=2025-04-08, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1752058625571, onlineIssueDateStr=2025-07-09, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1752058625571, creator=13701087609, updateTime=1752058625571, updator=13701087609, issue=Issue{id=1149780466032669506, tenantId=1146029695717560320, journalId=1146123166801305609, year='2025', volume='25', issue='10', pageStart='3969', pageEnd='4395', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=0, createTime=1752058624990, creator=13701087609, updateTime=1768456644259, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1218558743898411553, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1149780466032669506, language=EN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1218558743898411554, tenantId=1146029695717560320, journalId=1146123166801305609, issueId=1149780466032669506, language=CN, specialIssueTitle=, coverIllustrator=, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=4118, endPage=4128, ext={EN=ArticleExt(id=1149780468763161433, articleId=1149780468469560151, tenantId=1146029695717560320, journalId=1146123166801305609, language=EN, title=Analysis of Fault Acoustic Signal Characteristics of Full Ceramic Angular Contact Ball Bearings, columnId=1156262732765717457, journalTitle=Science Technology and Engineering, columnName=Papers·Mechanical and Instrumental Industry, runingTitle=null, highlight=null, articleAbstract=
To solve the problem of bearing fault and complex sound field environment, taking H7009C full ceramic angular contact ball bearing as the research object, the dynamic analysis model of full ceramic angular contact ball bearing was established, and the error of theoretical calculation and simulation of rolling body was compared to verify the validity of the model. Based on the transient dynamic analysis of the influence of inner ring fault on the bearing dynamic characteristics, the surface SPL (sound pressure level) of bearings caused by different faults was calculated, and the SPL characteristics of high-speed bearings were compared under the action of variable speed and variable load. The results show that the sound pressure level of the faulty inner ring bearing increases with the increase of speed, and increases first and then decreases with the increase of load. When the ratio of the lowest sound pressure level frequency to the vibration frequency is close to 0.75 or the ratio of the highest sound pressure level frequency to the vibration frequency is close to 4, it can be identified as an inner ring fault.
, correspAuthors=Xue YANG, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, 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, authorCompany=null, fund=null, authors=null, authorsList=Hai-peng YAN, Meng-lin LIU, Xue YANG, Zhi-ying QIN, Sai LANG), CN=ArticleExt(id=1149780521519116814, articleId=1149780468469560151, tenantId=1146029695717560320, journalId=1146123166801305609, language=CN, title=全陶瓷角接触球轴承故障声信号特性分析, columnId=1156262732954461139, journalTitle=科学技术与工程, columnName=论文·机械、仪表工业, runingTitle=null, highlight=null, articleAbstract=
针对轴承故障及其声场环境较为复杂的问题,以H7009C型全陶瓷角接触球轴承为研究对象,建立了全陶瓷角接触球轴承的动力学分析模型,并对比滚动体理论计算与仿真模拟的误差来验证模型的有效性。基于瞬态动力学分析内圈故障对轴承动态特性的影响,计算轴承由于存在不同故障产生的表面声压级,对比变转速和变载荷作用下高速轴承的声压级特性。研究表明:内圈故障轴承的声压级随着转速的增加而增大,同时也随着载荷的增加呈现出先增大后减小的变化趋势;当最低声压级频率与振动频率之比接近0.75或最高声压级频率与振动频率之比接近4时,即可识别为内圈故障。
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闫海鹏(1987—),男,汉族,辽宁葫芦岛人,博士,副教授。研究方向:机械系统状态监测与故障诊断技术。E-mail:lnyanhp@126.com。
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闫海鹏(1987—),男,汉族,辽宁葫芦岛人,博士,副教授。研究方向:机械系统状态监测与故障诊断技术。E-mail:lnyanhp@126.com。
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Fault model of bearing inner ring, figureFileSmall=0pjbC8LafdaVWOxfTq2OAQ==, figureFileBig=wU9FGsFVOAqTuWaRRd+jRg==, tableContent=null), ArticleFig(id=1218525108818330169, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780468469560151, language=CN, label=图1, caption=
轴承内圈故障模型, figureFileSmall=0pjbC8LafdaVWOxfTq2OAQ==, figureFileBig=wU9FGsFVOAqTuWaRRd+jRg==, tableContent=null), ArticleFig(id=1218525108986102342, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780468469560151, language=EN, label=Fig.2, caption=
Stress curves of normal and faulty inner ring, figureFileSmall=ngjrBp1BodyfQLihXXCyWw==, figureFileBig=RLgwbMQt5LPuInOh708TkA==, tableContent=null), ArticleFig(id=1218525109099348563, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780468469560151, language=CN, label=图2, caption=
正常与故障内圈时的应力曲线, figureFileSmall=ngjrBp1BodyfQLihXXCyWw==, figureFileBig=RLgwbMQt5LPuInOh708TkA==, tableContent=null), ArticleFig(id=1218525109208400482, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780468469560151, language=EN, label=Fig.3, caption=
Stress curves of each component during inner ring failure, figureFileSmall=vYlyGa89iF7znq6fqrjGyg==, figureFileBig=XdzfVH3XhMuzinTBLNhTAA==, tableContent=null), ArticleFig(id=1218525109338423917, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780468469560151, language=CN, label=图3, caption=
内圈故障时各元件的应力曲线, figureFileSmall=vYlyGa89iF7znq6fqrjGyg==, figureFileBig=XdzfVH3XhMuzinTBLNhTAA==, tableContent=null), ArticleFig(id=1218525109447475834, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780468469560151, language=EN, label=Fig.4, caption=
Displacement curves, figureFileSmall=5iIjbdfUzoKODlxtcWeVDA==, figureFileBig=ehNh9SCm+ZV2RXyRpBTJAQ==, tableContent=null), ArticleFig(id=1218525109581693576, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780468469560151, language=CN, label=图4, caption=
位移曲线, figureFileSmall=5iIjbdfUzoKODlxtcWeVDA==, figureFileBig=ehNh9SCm+ZV2RXyRpBTJAQ==, tableContent=null), ArticleFig(id=1218525109699134099, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780468469560151, language=EN, label=Fig.5, caption=
Velocity curves, figureFileSmall=h1lWqd3cQ0GX8A9eAVXySg==, figureFileBig=EyqHpVdBXzkm8FdYHM8WsQ==, tableContent=null), ArticleFig(id=1218525109837546148, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780468469560151, language=CN, label=图5, caption=
速度曲线, figureFileSmall=h1lWqd3cQ0GX8A9eAVXySg==, figureFileBig=EyqHpVdBXzkm8FdYHM8WsQ==, tableContent=null), ArticleFig(id=1218525109959180972, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780468469560151, language=EN, label=Fig.6, caption=
Simulation flow chart, figureFileSmall=KkN9JuLdjC3YjcYqzIKD+w==, figureFileBig=ArqCxmm7ErX3045ohPAZqA==, tableContent=null), ArticleFig(id=1218525110043067063, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780468469560151, language=CN, label=图6, caption=
仿真流程图, figureFileSmall=KkN9JuLdjC3YjcYqzIKD+w==, figureFileBig=ArqCxmm7ErX3045ohPAZqA==, tableContent=null), ArticleFig(id=1218525110135341764, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780468469560151, language=EN, label=Fig.7, caption=
Boundary element model, figureFileSmall=kGvtURhCg8z5/Izp61dxKw==, figureFileBig=njiNDXApLNRlHZD99ZEkYQ==, tableContent=null), ArticleFig(id=1218525110240199371, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780468469560151, language=CN, label=图7, caption=
边界元模型, figureFileSmall=kGvtURhCg8z5/Izp61dxKw==, figureFileBig=njiNDXApLNRlHZD99ZEkYQ==, tableContent=null), ArticleFig(id=1218525110349251282, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780468469560151, language=EN, label=Fig.8, caption=
Mapping diagram of data transfer, figureFileSmall=58PZV9FVni4bPYDYS8qrjA==, figureFileBig=FL161n+nD+qZWGP43xnBFw==, tableContent=null), ArticleFig(id=1218525110475080416, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780468469560151, language=CN, label=图8, caption=
数据转移的映射图, figureFileSmall=58PZV9FVni4bPYDYS8qrjA==, figureFileBig=FL161n+nD+qZWGP43xnBFw==, tableContent=null), ArticleFig(id=1218525110621881061, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780468469560151, language=EN, label=Fig.9, caption=
Displacement after data transfer, figureFileSmall=qmDkx4E/wSnCsaSg3HBryQ==, figureFileBig=/e86Wr2zgWGzFIVq6U++Kg==, tableContent=null), ArticleFig(id=1218525110743515887, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780468469560151, language=CN, label=图9, caption=
数据转移后的位移, figureFileSmall=qmDkx4E/wSnCsaSg3HBryQ==, figureFileBig=/e86Wr2zgWGzFIVq6U++Kg==, tableContent=null), ArticleFig(id=1218525110865150715, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780468469560151, language=EN, label=Fig.10, caption=
Model site, figureFileSmall=EnfNuhu0CSZzydFW6aq/Yg==, figureFileBig=lGEGU6SbdYAsNwduaxRGLg==, tableContent=null), ArticleFig(id=1218525111091643143, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780468469560151, language=CN, label=图10, caption=
模型场点, figureFileSmall=EnfNuhu0CSZzydFW6aq/Yg==, figureFileBig=lGEGU6SbdYAsNwduaxRGLg==, tableContent=null), ArticleFig(id=1218525111204889361, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780468469560151, language=EN, label=Fig.11, caption=
Cloud image of sound pressure level of normal bearing, figureFileSmall=rGYa7mOn8kW/351y91gqeQ==, figureFileBig=rwXVUYvBSaRO0FjgIL5OWA==, tableContent=null), ArticleFig(id=1218525111343301400, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780468469560151, language=CN, label=图11, caption=
正常轴承声压级云图, figureFileSmall=rGYa7mOn8kW/351y91gqeQ==, figureFileBig=rwXVUYvBSaRO0FjgIL5OWA==, tableContent=null), ArticleFig(id=1218525111460741923, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780468469560151, language=EN, label=Fig.12, caption=
Cloud image of sound pressure level ofinner ring fault bearing, figureFileSmall=f3JkWJTVgz7oq/BRJ3ar8Q==, figureFileBig=SQcYQK/7KHkY+q2v58fwhA==, tableContent=null), ArticleFig(id=1218525111649485611, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780468469560151, language=CN, label=图12, caption=
内圈故障轴承声压级云图, figureFileSmall=f3JkWJTVgz7oq/BRJ3ar8Q==, figureFileBig=SQcYQK/7KHkY+q2v58fwhA==, tableContent=null), ArticleFig(id=1218525111771120434, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780468469560151, language=EN, label=Fig.13, caption=
Influence curves of sound pressure level of normal bearing, figureFileSmall=AHrlThYjoMNsY7kqt4j2Qw==, figureFileBig=Kn4jUGo1nKtYG2eB3Ggm3g==, tableContent=null), ArticleFig(id=1218525111938892605, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780468469560151, language=CN, label=图13, caption=
正常轴承声压级影响曲线图, figureFileSmall=AHrlThYjoMNsY7kqt4j2Qw==, figureFileBig=Kn4jUGo1nKtYG2eB3Ggm3g==, tableContent=null), ArticleFig(id=1218525112039555910, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780468469560151, language=EN, label=Fig.14, caption=
Influence curves of sound pressure level of inner ring fault bearing, figureFileSmall=YUgLLnQwKl8l8SUTgQYVbw==, figureFileBig=ArqjfpcPhUzJdzXJekuhjA==, tableContent=null), ArticleFig(id=1218525112136024911, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780468469560151, language=CN, label=图14, caption=
内圈故障轴承声压级影响曲线图, figureFileSmall=YUgLLnQwKl8l8SUTgQYVbw==, figureFileBig=ArqjfpcPhUzJdzXJekuhjA==, tableContent=null), ArticleFig(id=1218525112245076825, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780468469560151, language=EN, label=Fig.15, caption=
Cloud image of sound pressure level at 2 000 N, figureFileSmall=qIBvrLFvUGeUxmInT12o6g==, figureFileBig=srLAtzmw2LHbwPuCw/i8YQ==, tableContent=null), ArticleFig(id=1218525112362517347, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780468469560151, language=CN, label=图15, caption=
2 000 N时的声压级云图, figureFileSmall=qIBvrLFvUGeUxmInT12o6g==, figureFileBig=srLAtzmw2LHbwPuCw/i8YQ==, tableContent=null), ArticleFig(id=1218525112454792044, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780468469560151, language=EN, label=Fig.16, caption=
Cloud image of sound pressure level at 3 000 N, figureFileSmall=qQzUDeX8KKTYhwURv3OtVw==, figureFileBig=IqoVbckf0eMchw5zi5rB5A==, tableContent=null), ArticleFig(id=1218525112547066741, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780468469560151, language=CN, label=图16, caption=
3 000 N时的声压级云图, figureFileSmall=qQzUDeX8KKTYhwURv3OtVw==, figureFileBig=IqoVbckf0eMchw5zi5rB5A==, tableContent=null), ArticleFig(id=1218525112647730048, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780468469560151, language=EN, label=Fig.17, caption=
Frequency domain diagram of sound pressure levelat variable load, figureFileSmall=CiCeJzpzknBCXmeY4oSolQ==, figureFileBig=dWlUI1iRdlXBazAYNl6Xvw==, tableContent=null), ArticleFig(id=1218525112740004743, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780468469560151, language=CN, label=图17, caption=
变载荷下的声压级频域图, figureFileSmall=CiCeJzpzknBCXmeY4oSolQ==, figureFileBig=dWlUI1iRdlXBazAYNl6Xvw==, tableContent=null), ArticleFig(id=1218525112819696526, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780468469560151, language=EN, label=Fig.18, caption=
Cloud image of sound pressure levelat variable speed, figureFileSmall=RFAzLOYODjqUIUGPM1zcLQ==, figureFileBig=FRvZcpNPdhDx77rTB5pLhQ==, tableContent=null), ArticleFig(id=1218525112941331353, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780468469560151, language=CN, label=图18, caption=
变转速下的声压级云图, figureFileSmall=RFAzLOYODjqUIUGPM1zcLQ==, figureFileBig=FRvZcpNPdhDx77rTB5pLhQ==, tableContent=null), ArticleFig(id=1218525113067160479, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780468469560151, language=EN, label=Fig.19, caption=
Frequency domain diagram of sound pressure level at variable speed, figureFileSmall=lBq5MAc7Nq9fL+1cm2ghiw==, figureFileBig=+HF/gcU6P2wV6PaO3SDELA==, tableContent=null), ArticleFig(id=1218525113205572521, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780468469560151, language=CN, label=图19, caption=
变转速下的声压级频域图, figureFileSmall=lBq5MAc7Nq9fL+1cm2ghiw==, figureFileBig=+HF/gcU6P2wV6PaO3SDELA==, tableContent=null), ArticleFig(id=1218525113339790258, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780468469560151, language=EN, label=Fig.20, caption=
Sound pressure level curves of inner ring fault at different positions, figureFileSmall=1nuzM06pY3SF2wt8YdkVyw==, figureFileBig=U4cdtTU2RFEh8h4OGimfvA==, tableContent=null), ArticleFig(id=1218525113461425080, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780468469560151, language=CN, label=图20, caption=
内圈故障不同方位声压级曲线, figureFileSmall=1nuzM06pY3SF2wt8YdkVyw==, figureFileBig=U4cdtTU2RFEh8h4OGimfvA==, tableContent=null), ArticleFig(id=1218525113574671297, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780468469560151, language=EN, label=Table 1, caption=
Structural parameters
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 数值 |
| 外径/mm | 75 |
| 内径/mm | 45 |
| 轴承宽度/mm | 16 |
| 滚动体直径/mm | 8.731 |
| 滚动体数目 | 17 |
| 初始触角/(°) | 15 |
| 保持架外径/mm | 63.5 |
| 保持架宽度/mm | 14 |
| 兜孔直径/mm | 8.9 |
), ArticleFig(id=1218525113692111818, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780468469560151, language=CN, label=表1, caption=
结构参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 数值 |
| 外径/mm | 75 |
| 内径/mm | 45 |
| 轴承宽度/mm | 16 |
| 滚动体直径/mm | 8.731 |
| 滚动体数目 | 17 |
| 初始触角/(°) | 15 |
| 保持架外径/mm | 63.5 |
| 保持架宽度/mm | 14 |
| 兜孔直径/mm | 8.9 |
), ArticleFig(id=1218525113889244112, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780468469560151, language=EN, label=Table 2, caption=
Material main performance parameters
, figureFileSmall=null, figureFileBig=null, tableContent=
| 元件名称 | 弹性模量/Pa | 密度/(kg·m-3) | 材料 |
| 滚动体 | 3.20×1011 | 3 200 | Si3N4 |
| 内圈 | 2.19×1011 | 6 000 | ZrO2 |
| 外圈 | 2.19×1011 | 6 000 | ZrO2 |
| 保持架 | 3.80×109 | 1 370 | PEEK |
), ArticleFig(id=1218525113981518807, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780468469560151, language=CN, label=表2, caption=
材料主要性能参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 元件名称 | 弹性模量/Pa | 密度/(kg·m-3) | 材料 |
| 滚动体 | 3.20×1011 | 3 200 | Si3N4 |
| 内圈 | 2.19×1011 | 6 000 | ZrO2 |
| 外圈 | 2.19×1011 | 6 000 | ZrO2 |
| 保持架 | 3.80×109 | 1 370 | PEEK |
), ArticleFig(id=1218525114094765019, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780468469560151, language=EN, label=Table 3, caption=
Comparison of revolution speed
, figureFileSmall=null, figureFileBig=null, tableContent=
| 周期/s | 实际转速/ (r·min-1) | 理论转速/ (r·min-1) | 差值百分 比/% |
| 0.034 | 1 764.7 | 1 933.7 | 8.74 |
), ArticleFig(id=1218525114224788452, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780468469560151, language=CN, label=表3, caption=
公转转速对比情况
, figureFileSmall=null, figureFileBig=null, tableContent=
| 周期/s | 实际转速/ (r·min-1) | 理论转速/ (r·min-1) | 差值百分 比/% |
| 0.034 | 1 764.7 | 1 933.7 | 8.74 |
), ArticleFig(id=1218525114317063149, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780468469560151, language=EN, label=Table 4, caption=
Comparison of rotational speed
, figureFileSmall=null, figureFileBig=null, tableContent=
| 周期/s | 实际转速/ (r·min-1) | 理论转速/ (r·min-1) | 差值百分 比/% |
| 0.003 93 | 15 267.2 | 15 156.3 | 0.73 |
), ArticleFig(id=1218525114468058098, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780468469560151, language=CN, label=表4, caption=
自转转速对比情况
, figureFileSmall=null, figureFileBig=null, tableContent=
| 周期/s | 实际转速/ (r·min-1) | 理论转速/ (r·min-1) | 差值百分 比/% |
| 0.003 93 | 15 267.2 | 15 156.3 | 0.73 |
), ArticleFig(id=1218525114589692923, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780468469560151, language=EN, label=Table 5, caption=
Relationship of vibration frequency and acoustic frequency
, figureFileSmall=null, figureFileBig=null, tableContent=
| 故障元件 | 振动频 率/Hz | 最低声压级 频率/Hz | 最高声压级 频率/Hz |
| 内圈 | fi | 0.75fi | 4fi |
), ArticleFig(id=1218525114673579009, tenantId=1146029695717560320, journalId=1146123166801305609, articleId=1149780468469560151, language=CN, label=表5, caption=
振动频率与声学频率的关系
, figureFileSmall=null, figureFileBig=null, tableContent=
| 故障元件 | 振动频 率/Hz | 最低声压级 频率/Hz | 最高声压级 频率/Hz |
| 内圈 | fi | 0.75fi | 4fi |
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