Article(id=1228295802569814213, tenantId=1146029695717560320, journalId=1225147924628267009, issueId=1228295801890336965, articleNumber=null, orderNo=null, doi=10.16385/j.cnki.issn.1004-4523.2025.02.001, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1706803200000, receivedDateStr=2024-02-02, revisedDate=1723564800000, revisedDateStr=2024-08-14, acceptedDate=null, acceptedDateStr=null, onlineDate=1770778139964, onlineDateStr=2026-02-11, pubDate=1739116800000, pubDateStr=2025-02-10, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1770778139964, onlineIssueDateStr=2026-02-11, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1770778139964, creator=13701087609, updateTime=1770778139964, updator=13701087609, issue=Issue{id=1228295801890336965, tenantId=1146029695717560320, journalId=1225147924628267009, year='2025', volume='38', issue='2', pageStart='223', pageEnd='448', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1770778139803, creator=13701087609, updateTime=1770949100774, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1229012864237760763, tenantId=1146029695717560320, journalId=1225147924628267009, issueId=1228295801890336965, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1229012864237760764, tenantId=1146029695717560320, journalId=1225147924628267009, issueId=1228295801890336965, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=223, endPage=231, ext={EN=ArticleExt(id=1228295802817278151, articleId=1228295802569814213, tenantId=1146029695717560320, journalId=1225147924628267009, language=EN, title=A dynamic similitude design method for sudden unbalance in rotor systems, columnId=null, journalTitle=Journal of Vibration Engineering, columnName=null, runingTitle=null, highlight=null, articleAbstract=
A dynamic similitude design method is proposed for the problem of sudden unbalance of the rotor system. The dynamic differential equation requires the application of both equation analysis and dimensional analysis methods to establish the scaling laws, while also considering the damping scaling ratio. Based on the strain energy distribution criterion, a prototype rotor system is designed. The prototype is scaled according to the scaling laws to create a distorted model, and the dynamic similarity between the prototype and the distorted model is verified through simulation and test. The simulation results show that the distorted model exhibits high similarity to the prototype in terms of critical speed, strain energy distribution, and transient response. The errors for the first two critical speeds are 0.1% and 0.13%, respectively, and the error in peak amplitude is 3%. The test results show that the distorted model can accurately predict the critical speed and sudden unbalance vibration response of the prototype, with the errors for the first two critical speeds being 0.79% and 1.72%, respectively, and the error in peak amplitude being 5.98%.
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针对转子系统突加不平衡问题,提出了一种动力学相似设计方法。根据动力学微分方程,运用方程分析法和量纲分析法,考虑阻尼缩比建立动力学相似关系。根据应变能分布准则,设计转子系统原型,利用相似关系对原型进行缩放建立畸变模型,通过仿真和试验对原型和畸变模型的动力学相似性进行验证。仿真结果表明:畸变模型与原型临界转速、应变能分布、瞬态响应具有较高的相似性,前两阶临界转速误差分别为0.1%和0.13%,峰值振幅误差为3%。试验结果表明:畸变模型可以准确地预测原型的临界转速和突加不平衡振动响应,前两阶临界转速误差分别为0.79%和1.72%,峰值振幅误差为5.98%。
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Campbell diagram of the prototype predicted by the distorted model, figureFileSmall=oYTc00Wx86+/lHpmvkreSg==, figureFileBig=Asrosa7dNn/jR8SYQrixQg==, tableContent=null), ArticleFig(id=1228313058326541042, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228295802569814213, language=CN, label=图4, caption=
畸变模型预测原型Campbell图, figureFileSmall=oYTc00Wx86+/lHpmvkreSg==, figureFileBig=Asrosa7dNn/jR8SYQrixQg==, tableContent=null), ArticleFig(id=1228313058473341689, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228295802569814213, language=EN, label=Fig. 5, caption=
Transient response plots, figureFileSmall=gad0SKIQVXTuaIjGMnJ5PA==, figureFileBig=s9xYZXaiVfJw5P3XYR+opg==, tableContent=null), ArticleFig(id=1228313058578199294, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228295802569814213, language=CN, label=图5, caption=
瞬态响应图, figureFileSmall=gad0SKIQVXTuaIjGMnJ5PA==, figureFileBig=s9xYZXaiVfJw5P3XYR+opg==, tableContent=null), ArticleFig(id=1228313058683056896, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228295802569814213, language=EN, label=Fig. 6, caption=
Axial trajectory plots of rotor system, figureFileSmall=i5pEN/NybaaTwHWuaWXQLQ==, figureFileBig=6rEwb9R5U7TumLoY1LVUKw==, tableContent=null), ArticleFig(id=1228313058800497414, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228295802569814213, language=CN, label=图6, caption=
转子系统轴心轨迹图, figureFileSmall=i5pEN/NybaaTwHWuaWXQLQ==, figureFileBig=6rEwb9R5U7TumLoY1LVUKw==, tableContent=null), ArticleFig(id=1228313058909549322, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228295802569814213, language=EN, label=Fig. 7, caption=
Test bench for prototype and distorted model and schematic diagram of test procedure, figureFileSmall=JHE/NHzeaXRP3os3HPl/bg==, figureFileBig=jW/sv5Ha3Tif3Nybj4/3IQ==, tableContent=null), ArticleFig(id=1228313059052155663, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228295802569814213, language=CN, label=图7, caption=
原型和畸变模型试验台及试验流程示意图, figureFileSmall=JHE/NHzeaXRP3os3HPl/bg==, figureFileBig=jW/sv5Ha3Tif3Nybj4/3IQ==, tableContent=null), ArticleFig(id=1228313059177984789, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228295802569814213, language=EN, label=Fig. 8, caption=
Arrangement of unbalanced blocks, figureFileSmall=aaaMzNPGv6VeSTZWSMVyKg==, figureFileBig=/ZBU5OybM9aYGwa9Ybg8OA==, tableContent=null), ArticleFig(id=1228313059287036695, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228295802569814213, language=CN, label=图8, caption=
不平衡块布置图, figureFileSmall=aaaMzNPGv6VeSTZWSMVyKg==, figureFileBig=/ZBU5OybM9aYGwa9Ybg8OA==, tableContent=null), ArticleFig(id=1228313059387699995, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228295802569814213, language=EN, label=Fig. 9, caption=
Vibration response plot of test bench, figureFileSmall=u+/gHHwF9qDY0FFsoRrJrw==, figureFileBig=j4G79d+s/90XTT35uNqj0w==, tableContent=null), ArticleFig(id=1228313059509334813, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228295802569814213, language=CN, label=图9, caption=
试验台振动响应图, figureFileSmall=u+/gHHwF9qDY0FFsoRrJrw==, figureFileBig=j4G79d+s/90XTT35uNqj0w==, tableContent=null), ArticleFig(id=1228313059605803812, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228295802569814213, language=EN, label=Fig. 10, caption=
Axial trajectory diagram of the test bench, figureFileSmall=93r6XiGViby2L97hTo90uQ==, figureFileBig=lEE3J8Vk/VxShDvZuS3nQg==, tableContent=null), ArticleFig(id=1228313059698078505, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228295802569814213, language=CN, label=图10, caption=
试验台轴心轨迹图, figureFileSmall=93r6XiGViby2L97hTo90uQ==, figureFileBig=lEE3J8Vk/VxShDvZuS3nQg==, tableContent=null), ArticleFig(id=1228313059807130416, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228295802569814213, language=EN, label=Tab. 1, caption=
Parameters of the rotor system prototype
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 数值 | 参数 | 数值 | 参数 | 数值 |
|---|
| 弹性模量E/Pa | 2.1×1011 | 转轴直径d/m | 0.04 | 转盘1~4厚度H/m | 0.02 |
| 密度ρ/(kg·m-3) | 7850 | 转盘直径D1/m | 0.24 | 支承1刚度K1/(N·m-1) | 3×106 |
| 轴长l1/m | 0.15 | 转盘直径D2/m | 0.26 | 支承2刚度K2/(N·m-1) | 1.5×106 |
| 轴长l2、l4、l5/m | 0.1 | 转盘直径D3/m | 0.28 | 支承3刚度K3/(N·m-1) | 5×106 |
| 轴长l3/m | 0.35 | 转盘直径D4/m | 0.30 | 支撑1~3阻尼C/(N·s·m-1) | 200 |
), ArticleFig(id=1228313059907793717, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228295802569814213, language=CN, label=表1, caption=
转子系统原型参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数 | 数值 | 参数 | 数值 | 参数 | 数值 |
|---|
| 弹性模量E/Pa | 2.1×1011 | 转轴直径d/m | 0.04 | 转盘1~4厚度H/m | 0.02 |
| 密度ρ/(kg·m-3) | 7850 | 转盘直径D1/m | 0.24 | 支承1刚度K1/(N·m-1) | 3×106 |
| 轴长l1/m | 0.15 | 转盘直径D2/m | 0.26 | 支承2刚度K2/(N·m-1) | 1.5×106 |
| 轴长l2、l4、l5/m | 0.1 | 转盘直径D3/m | 0.28 | 支承3刚度K3/(N·m-1) | 5×106 |
| 轴长l3/m | 0.35 | 转盘直径D4/m | 0.30 | 支撑1~3阻尼C/(N·s·m-1) | 200 |
), ArticleFig(id=1228313060004262712, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228295802569814213, language=EN, label=Tab. 2, caption=
Comparison of critical rotational speeds between prototype and distorted model of rotor system
, figureFileSmall=null, figureFileBig=null, tableContent=
| 阶数 | 临界转速/(r·min-1) | 误差/% |
|---|
| 原型 | 畸变模型 |
|---|
| 1 | 3939 | 3943 | 0.1 |
| 2 | 5967 | 5975 | 0.13 |
), ArticleFig(id=1228313060100731708, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228295802569814213, language=CN, label=表2, caption=
转子系统原型与畸变模型临界转速对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 阶数 | 临界转速/(r·min-1) | 误差/% |
|---|
| 原型 | 畸变模型 |
|---|
| 1 | 3939 | 3943 | 0.1 |
| 2 | 5967 | 5975 | 0.13 |
), ArticleFig(id=1228313060205589311, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228295802569814213, language=EN, label=Tab. 3, caption=
Vibration response peak amplitude and error
, figureFileSmall=null, figureFileBig=null, tableContent=
| 峰值振幅/mm | 误差/% |
|---|
| 原型 | 畸变模型 |
|---|
| 0.133 | 0.129 | 3 |
), ArticleFig(id=1228313060297864004, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228295802569814213, language=CN, label=表3, caption=
振动响应峰值振幅及误差
, figureFileSmall=null, figureFileBig=null, tableContent=
| 峰值振幅/mm | 误差/% |
|---|
| 原型 | 畸变模型 |
|---|
| 0.133 | 0.129 | 3 |
), ArticleFig(id=1228313060381750088, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228295802569814213, language=EN, label=Tab. 4, caption=
Main similarity parameters of the test bench
, figureFileSmall=null, figureFileBig=null, tableContent=
| 相似参数 | 数值 | 相似参数 | 数值 | 相似参数 | 数值 |
|---|
| 转轴轴长相似比λlT | 0.894 | 转盘厚度相似比λHT | 0.808 | 不平衡量相似比λFeT | 0.646 |
| 转轴直径相似比λdT | 0.850 | 支承刚度相似比λKT | 0.730 | 临界转速相似比λΩT | 1.063 |
| 转盘直径相似比λDT | 0.894 | 支承阻尼相似比λCT | 0.687 | 振动响应相似比λxeT | 0.886 |
), ArticleFig(id=1228313060478219085, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228295802569814213, language=CN, label=表4, caption=
试验台主要相似参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 相似参数 | 数值 | 相似参数 | 数值 | 相似参数 | 数值 |
|---|
| 转轴轴长相似比λlT | 0.894 | 转盘厚度相似比λHT | 0.808 | 不平衡量相似比λFeT | 0.646 |
| 转轴直径相似比λdT | 0.850 | 支承刚度相似比λKT | 0.730 | 临界转速相似比λΩT | 1.063 |
| 转盘直径相似比λDT | 0.894 | 支承阻尼相似比λCT | 0.687 | 振动响应相似比λxeT | 0.886 |
), ArticleFig(id=1228313060566299472, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228295802569814213, language=EN, label=Tab. 5, caption=
Critical rotational speeds and errors of test bench
, figureFileSmall=null, figureFileBig=null, tableContent=
| 阶数 | 临界转速/(r·min-1) | 误差/% |
|---|
| 原型 | 畸变模型 |
|---|
| 1 | 2520 | 2700 | 0.79 |
| 2 | 2940 | 3180 | 1.72 |
), ArticleFig(id=1228313060671157076, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228295802569814213, language=CN, label=表5, caption=
试验台临界转速及误差
, figureFileSmall=null, figureFileBig=null, tableContent=
| 阶数 | 临界转速/(r·min-1) | 误差/% |
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| 原型 | 畸变模型 |
|---|
| 1 | 2520 | 2700 | 0.79 |
| 2 | 2940 | 3180 | 1.72 |
), ArticleFig(id=1228313060771820376, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228295802569814213, language=EN, label=Tab. 6, caption=
Vibration response peak amplitude and error of test bench
, figureFileSmall=null, figureFileBig=null, tableContent=
| 峰值振幅/mm | 误差/% |
|---|
| 原型 | 畸变模型 |
|---|
| 0.805 | 0.673 | 5.98 |
), ArticleFig(id=1228313060885066588, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1228295802569814213, language=CN, label=表6, caption=
试验台振动响应峰值振幅及误差
, figureFileSmall=null, figureFileBig=null, tableContent=
| 峰值振幅/mm | 误差/% |
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| 原型 | 畸变模型 |
|---|
| 0.805 | 0.673 | 5.98 |
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