Article(id=1261021846082805785, tenantId=1146029695717560320, journalId=1146119989267898375, issueId=1261021842173714450, articleNumber=null, orderNo=null, doi=10.7654/j.issn.2097-1974.20260206, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=research-article, receivedDate=1748188800000, receivedDateStr=2025-05-26, revisedDate=1758211200000, revisedDateStr=2025-09-19, acceptedDate=null, acceptedDateStr=null, onlineDate=1778580636758, onlineDateStr=2026-05-12, pubDate=1777046400000, pubDateStr=2026-04-25, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1778580636758, onlineIssueDateStr=2026-05-12, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1778580636758, creator=13701087609, updateTime=1778580636758, updator=13701087609, issue=Issue{id=1261021842173714450, tenantId=1146029695717560320, journalId=1146119989267898375, year='2026', volume='49', issue='2', pageStart='1', pageEnd='106', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=1, specialIssue=null, createTime=1778580635827, creator=13701087609, updateTime=1778581006660, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1261023397702676951, tenantId=1146029695717560320, journalId=1146119989267898375, issueId=1261021842173714450, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1261023397702676952, tenantId=1146029695717560320, journalId=1146119989267898375, issueId=1261021842173714450, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=45, endPage=51, ext={EN=ArticleExt(id=1261021846850363421, articleId=1261021846082805785, tenantId=1146029695717560320, journalId=1146119989267898375, language=EN, title=Dynamic Characteristics Analysis and Experiment of Cantilever Turbopump Rotor in Rocket Engine, columnId=1154057566893105509, journalTitle=Missiles and Space Vehicles, columnName=Propulsion, runingTitle=null, highlight=null, articleAbstract=
To study the dynamic characteristics of the cantilever turbopump rotor in rocket engines, finite element models of the rotor dynamic characteristics are established using 3D solid elements and 2D beam elements to conduct dynamic characteristic analysis. The sensitivity of the impeller and turbine to unbalance on the rotor is obtained. High speed dynamic balance tests of the rotor are conducted on a high-speed rotating tester, and the results show that the finite element model well reflects the true dynamic characteristics of the rotor, with a calculation error of no more than 5%. Compared with 2D beam element model, the calculation accuracy of the 3D solid elements model is higher. The rotor is most sensitive to the imbalance on the turbine, providing a theoretical reference for high-speed dynamic balancing test. After high-speed dynamic balancing, the amplitude reduction of the rotor at critical speed is not less than 70.27%, and the reduction of elastic support stress is not less than 84.38%, indicating good dynamic balancing effect. The research provides a reference for the analysis of the dynamic characteristics of the rotor of a large cantilever turbopump and high-speed dynamic balancing tests.
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为了研究火箭发动机悬臂涡轮泵转子的动力学特性,分别采用三维实体单元、二维梁单元建立转子动力特性有限元模型开展动力特性分析,获取转子叶轮、涡轮对不平衡的敏感程度,在高速旋转试验器上进行了转子高速动平衡试验研究,结果表明有限元模型很好地反映了转子真实动力特性,计算误差均不大于5%,相比于二维梁单元模型,三维实体单元模型的计算精度更高;转子对涡轮上的不平衡最为敏感,为高速动平衡试验时平衡面的选取提供了参考;高速动平衡后,转子在临界转速下的振幅降幅不低于70.27%、弹支应力降幅不低于84.38%,动平衡效果良好。研究为悬臂涡轮泵转子动力学特性分析和高速动平衡试验提供了参考。
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聂卫健(1991—),男,高级工程师,主要研究方向为转子动力学。
唐虎标(1991—),男,工程师,主要研究方向为转子动力学。
马伟东(1997—),男,工程师,主要研究方向为转子动力学。
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1.中国航发湖南动力机械研究所,株洲,412002)]), AuthorCompany(id=1261025914519994775, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1261021846082805785, xref=2., ext=[AuthorCompanyExt(id=1261025914528383384, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1261021846082805785, companyId=1261025914519994775, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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Rotor structure, figureFileSmall=J4uvthUFDD3w3ZQGo5+fHg==, figureFileBig=i340o54VQxf+O+zi9/ZlvQ==, tableContent=null), ArticleFig(id=1261025927425868269, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1261021846082805785, language=CN, label=图1, caption=
转子结构1—预燃室叶轮;2—叶轮端轴承;3—轴;4—主泵叶轮;5—涡轮端轴承;6—弹支;7—涡轮。
, figureFileSmall=J4uvthUFDD3w3ZQGo5+fHg==, figureFileBig=i340o54VQxf+O+zi9/ZlvQ==, tableContent=null), ArticleFig(id=1261025927610417649, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1261021846082805785, language=EN, label=Fig.2, caption=
3D solid unit model, figureFileSmall=uIeIO69AL8eez/BNDPt/Kg==, figureFileBig=ihmXJThsqVx0vcYvIsVdcw==, tableContent=null), ArticleFig(id=1261025927727858165, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1261021846082805785, language=CN, label=图2, caption=
三维实体单元模型, figureFileSmall=uIeIO69AL8eez/BNDPt/Kg==, figureFileBig=ihmXJThsqVx0vcYvIsVdcw==, tableContent=null), ArticleFig(id=1261025927954350584, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1261021846082805785, language=EN, label=Fig.3, caption=
Critical speeds and corresponding vibration modes (3D solid element), figureFileSmall=Zw20MjQuNvavD19JhNsbHg==, figureFileBig=RC0hUzGFlXMHwN6tG/PViA==, tableContent=null), ArticleFig(id=1261025928419918333, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1261021846082805785, language=CN, label=图3, caption=
临界转速及对应振型(三维实体单元), figureFileSmall=Zw20MjQuNvavD19JhNsbHg==, figureFileBig=RC0hUzGFlXMHwN6tG/PViA==, tableContent=null), ArticleFig(id=1261025928575107586, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1261021846082805785, language=EN, label=Fig.4, caption=
2D beam element model, figureFileSmall=W2J58O1NZqVnav+PN2QpjQ==, figureFileBig=kCcQo5i/NOyuOwijt+VlZQ==, tableContent=null), ArticleFig(id=1261025928684159491, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1261021846082805785, language=CN, label=图4, caption=
二维梁单元模型, figureFileSmall=W2J58O1NZqVnav+PN2QpjQ==, figureFileBig=kCcQo5i/NOyuOwijt+VlZQ==, tableContent=null), ArticleFig(id=1261025928868708872, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1261021846082805785, language=EN, label=Fig.5, caption=
Critical speeds and corresponding vibration modes (2D beam element), figureFileSmall=YtGLs7j7IfgDDXbTmMLBVg==, figureFileBig=SC+JWBsU3DMF2jyPyOvYVQ==, tableContent=null), ArticleFig(id=1261025928998732299, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1261021846082805785, language=CN, label=图5, caption=
临界转速及对应振型(二维梁单元), figureFileSmall=YtGLs7j7IfgDDXbTmMLBVg==, figureFileBig=SC+JWBsU3DMF2jyPyOvYVQ==, tableContent=null), ArticleFig(id=1261025929225224719, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1261021846082805785, language=EN, label=Fig.6, caption=
Response curves of unbalanced characteristic position on the rotor, figureFileSmall=d8TnV+beD1nsLWsrovHL6w==, figureFileBig=+IrIvj5PCsO9lEJ70FfI1g==, tableContent=null), ArticleFig(id=1261025929443328532, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1261021846082805785, language=CN, label=图6, caption=
转子上特征位置不平衡响应曲线, figureFileSmall=d8TnV+beD1nsLWsrovHL6w==, figureFileBig=+IrIvj5PCsO9lEJ70FfI1g==, tableContent=null), ArticleFig(id=1261025929523020310, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1261021846082805785, language=EN, label=Fig.7, caption=
Diagram of rotor installation and test, figureFileSmall=pfEX2Si0sM+hlkm0e5a5jw==, figureFileBig=+T91MILVrkSj3PfWLiO4xA==, tableContent=null), ArticleFig(id=1261025929615295000, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1261021846082805785, language=CN, label=图7, caption=
转子安装测试示意, figureFileSmall=pfEX2Si0sM+hlkm0e5a5jw==, figureFileBig=+T91MILVrkSj3PfWLiO4xA==, tableContent=null), ArticleFig(id=1261025929711763997, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1261021846082805785, language=EN, label=Fig.8, caption=
Elastic support stress measuring point, figureFileSmall=XDiNUXJIDF8CKlMbrQHGyw==, figureFileBig=tsCuizbUmuhTlMkL+QFhyQ==, tableContent=null), ArticleFig(id=1261025929774678558, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1261021846082805785, language=CN, label=图8, caption=
弹支应力测点, figureFileSmall=XDiNUXJIDF8CKlMbrQHGyw==, figureFileBig=tsCuizbUmuhTlMkL+QFhyQ==, tableContent=null), ArticleFig(id=1261025929854370338, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1261021846082805785, language=EN, label=Fig.9, caption=
Vibration amplitude of the rotor, figureFileSmall=HQreon5JHaTZdWWOKBcjwQ==, figureFileBig=XUCzL6Fi7jqdBMTyNqOjjg==, tableContent=null), ArticleFig(id=1261025930059891236, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1261021846082805785, language=CN, label=图9, caption=
转子振动幅值, figureFileSmall=HQreon5JHaTZdWWOKBcjwQ==, figureFileBig=XUCzL6Fi7jqdBMTyNqOjjg==, tableContent=null), ArticleFig(id=1261025931959910951, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1261021846082805785, language=EN, label=Fig.10, caption=
Elastic support stress of the rotor, figureFileSmall=Oyg5KdL14su6mVghn7lcXw==, figureFileBig=WPlLrXQRJUBc2UvQVyqnUg==, tableContent=null), ArticleFig(id=1261025932110905897, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1261021846082805785, language=CN, label=图10, caption=
弹支应力, figureFileSmall=Oyg5KdL14su6mVghn7lcXw==, figureFileBig=WPlLrXQRJUBc2UvQVyqnUg==, tableContent=null), ArticleFig(id=1261025932278678059, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1261021846082805785, language=EN, label=Tab.1, caption=
Material properties of GH4169
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| 材料 | 弹性模量E/GPa | 泊松比µ | 密度ρ/(kg·m-3) |
|---|
| GH4169 | 204 | 0.30 | 8 240 |
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GH4169材料属性
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| 材料 | 弹性模量E/GPa | 泊松比µ | 密度ρ/(kg·m-3) |
|---|
| GH4169 | 204 | 0.30 | 8 240 |
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Unbalanced response value at critical speed
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| 单位不平衡量位置 | 特征位置的不平衡响应值/μm |
|---|
| 1# | 2# | 3# |
|---|
| 预燃室叶轮 | 0.018 | 0.033 | 0.071 |
| 主泵叶轮 | 0.014 | 0.031 | 0.078 |
| 涡轮 | 0.095 | 0.189 | 0.428 |
), ArticleFig(id=1261025933163676212, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1261021846082805785, language=CN, label=表2, caption=
临界转速下不平衡响应值
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| 单位不平衡量位置 | 特征位置的不平衡响应值/μm |
|---|
| 1# | 2# | 3# |
|---|
| 预燃室叶轮 | 0.018 | 0.033 | 0.071 |
| 主泵叶轮 | 0.014 | 0.031 | 0.078 |
| 涡轮 | 0.095 | 0.189 | 0.428 |
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The process of dynamic balancing
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转速 /(r·min-1) | 平衡过程 | D3传感器测量值 |
|---|
| 幅值/μm | 相位/(゜) |
|---|
| 7 200 | 在涡轮盘0°位置施加一定质量的试配重后(约2 g) | 519 | 12 |
| 7 200 | 将原0°位置配重取下,在347°位置加0.862倍原配重质量后(约1.7 g) | 144 | 253 |
| 7 200 | 在涡轮347°位置对面(167°)打磨去材料后(约1.7 g) | 80 | 167 |
| 7 200 | 在涡轮盘0°位置施加一定质量的试配重后(约2 g) | 45 | 88 |
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平衡过程
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转速 /(r·min-1) | 平衡过程 | D3传感器测量值 |
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| 幅值/μm | 相位/(゜) |
|---|
| 7 200 | 在涡轮盘0°位置施加一定质量的试配重后(约2 g) | 519 | 12 |
| 7 200 | 将原0°位置配重取下,在347°位置加0.862倍原配重质量后(约1.7 g) | 144 | 253 |
| 7 200 | 在涡轮347°位置对面(167°)打磨去材料后(约1.7 g) | 80 | 167 |
| 7 200 | 在涡轮盘0°位置施加一定质量的试配重后(约2 g) | 45 | 88 |
), ArticleFig(id=1261025933817987641, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1261021846082805785, language=EN, label=Tab.4, caption=
Vibration amplitude and elastic stress of the rotor at critical speed before and after high-speed dynamic balancing
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| 类别 | 传感器 | 平衡前 | 平衡后 | 降幅/% |
|---|
| 振动幅值/μm | D1 | 74 | 22 | 70.27 |
| D2 | 230 | 18 | 92.17 |
| D3 | 590 | 31 | 94.75 |
| 弹支应力/MPa | S1 | 45 | 3 | 93.33 |
| S2 | 32 | 5 | 84.38 |
), ArticleFig(id=1261025933952205372, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1261021846082805785, language=CN, label=表4, caption=
高速动平衡前、后转子在临界转速下的振动幅值和弹支应力
, figureFileSmall=null, figureFileBig=null, tableContent=
| 类别 | 传感器 | 平衡前 | 平衡后 | 降幅/% |
|---|
| 振动幅值/μm | D1 | 74 | 22 | 70.27 |
| D2 | 230 | 18 | 92.17 |
| D3 | 590 | 31 | 94.75 |
| 弹支应力/MPa | S1 | 45 | 3 | 93.33 |
| S2 | 32 | 5 | 84.38 |
), ArticleFig(id=1261025934078034494, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1261021846082805785, language=EN, label=Tab.5, caption=
Comparison of critical speed between calculated and experimental values
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| 转速计算值/(r·min-1) | 三维实体单元 | 二维梁单元 |
|---|
| 7 084 | 7 006 |
|---|
| 转速试验值/(r·min-1) | 7 345 |
| 误差/% | 3.55 | 4.62 |
), ArticleFig(id=1261025934304526913, tenantId=1146029695717560320, journalId=1146119989267898375, articleId=1261021846082805785, language=CN, label=表5, caption=
计算值和试验值临界转速对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 转速计算值/(r·min-1) | 三维实体单元 | 二维梁单元 |
|---|
| 7 084 | 7 006 |
|---|
| 转速试验值/(r·min-1) | 7 345 |
| 误差/% | 3.55 | 4.62 |
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