Article(id=1241699539392975461, tenantId=1146029695717560320, journalId=1227999626482147330, issueId=1241699531444769296, articleNumber=null, orderNo=null, doi=10.16579/j.issn.1001.9669.2025.04.001, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1691769600000, receivedDateStr=2023-08-12, revisedDate=1695052800000, revisedDateStr=2023-09-19, acceptedDate=null, acceptedDateStr=null, onlineDate=1773973839852, onlineDateStr=2026-03-20, pubDate=1744646400000, pubDateStr=2025-04-15, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1773973839852, onlineIssueDateStr=2026-03-20, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1773973839852, creator=13701087609, updateTime=1773973839852, updator=13701087609, issue=Issue{id=1241699531444769296, tenantId=1146029695717560320, journalId=1227999626482147330, year='2025', volume='47', issue='4', pageStart='1', pageEnd='157', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1773973837957, creator=13701087609, updateTime=1773974092709, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1241700600002433947, tenantId=1146029695717560320, journalId=1227999626482147330, issueId=1241699531444769296, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1241700600006628252, tenantId=1146029695717560320, journalId=1227999626482147330, issueId=1241699531444769296, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=1, endPage=8, ext={EN=ArticleExt(id=1241699539682382444, articleId=1241699539392975461, tenantId=1146029695717560320, journalId=1227999626482147330, language=EN, title=Multi-axial fatigue life prediction method of working roll neck bearing section based on strain energy, columnId=1241446330749481285, journalTitle=Journal of Mechanical Strength, columnName=·Fatigue·Damage·Fracture·Failure Analysis·, runingTitle=null, highlight=null, articleAbstract=
The bearing section of the work roll neck often suffers burnout failure due to bearing seizure, and additive manufacturing is usually used in the field to repair it. Life prediction of the repaired roll neck is the key to predict the safe service of the work roll in the field production and carry out overhaul,but there is a lack of research on the related issues. In view of the above problems, the stress analysis and multi-axis life prediction of the working roll neck bearing section of the four-high mill were carried out. Based on the SIMS model and the influence function method, the rolling force and the stress between the rolls were calculated. The moment balance equation of the roll neck end was established in the bearing section,and the bending stress model of the roll neck bearing section was established. The deformation resistance was regarded as the plastic deformation energy per unit volume to calculate the rolling torque in the deformation zone, and the torsional shear stress model of the roll neck bearing section was established. Using the first strength theory, the equivalent stress was obtained by combining the bending stress and the torsional shear stress. On the basis of proving the calculation accuracy of the model,the multi-axis fatigue model was used to predict the fatigue life of the roll neck bearing section, and compared with the service life of the actual roll in the production line. The results show that the stress calculation model of the working roll neck bearing section of the four-high mill is in line with the actual stress state of the roll neck. The error between the expected service life predicted by the theoretical model and the actual service life is less than 20%, which meets the actual engineering error requirements.
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工作辊辊颈轴承段经常因轴承卡死等出现烧伤失效问题,现场通常采用增材制造的方式进行修复,对修复后的辊颈进行寿命预测是现场生产预估工作辊安全服役并进行检修的关键,但目前缺乏针对相关问题的研究。针对上述问题,对四辊轧机工作辊辊颈轴承段进行了应力分析和多轴寿命预测。基于西姆斯(SIMS)模型和影响函数法计算得到了轧制力和辊间应力,在轴承段取矩建立辊颈端力矩平衡方程,建立了辊颈轴承段弯曲应力模型。将变形抗力视为单位体积的塑性变形能,计算得到了变形区的轧制力矩,建立了辊颈轴承段扭转切应力模型。使用第一强度理论,联立弯曲应力和扭转切应力得到了等效应力。选用多轴疲劳模型,在证明模型计算精度的基础上,对辊颈轴承段进行了疲劳寿命预测,并与实际轧辊在生产线的服役寿命进行了对比。结果表明,该四辊轧机工作辊辊颈轴承段应力计算模型符合实际的辊颈应力状态,理论模型预测得到的服役寿命与实际服役寿命相比,误差小于20%,满足工程实际误差的要求。
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, authorsList=靳凯, 秦晓峰, 王永, 瞿海霞, 李硕杰, 秦卓扬, 谢苇航, 马飞扬)}, authors=[Author(id=1241699559546606005, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699539392975461, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=18135145963@163.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1241699559689212346, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699539392975461, authorId=1241699559546606005, language=EN, stringName=Kai JIN, firstName=Kai, middleName=null, lastName=JIN, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1.College of Mechanical and Vehicle Engineering, Taiyuan University of Technology, Taiyuan 030002, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1241699559768904127, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699539392975461, authorId=1241699559546606005, language=CN, stringName=靳凯, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1.太原理工大学 机械与运载工程学院,太原 030002, bio={"content":"
靳凯,男,1999年生,山西太原人,硕士研究生;主要研究方向为轧辊全寿命服役关键技术;E-mail:18135145963@163.com。
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靳凯,男,1999年生,山西太原人,硕士研究生;主要研究方向为轧辊全寿命服役关键技术;E-mail:18135145963@163.com。
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1.太原理工大学 机械与运载工程学院,太原 030002)])]), Author(id=1241699559861178819, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699539392975461, orderNo=1, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=qinxiaofeng@tyut.edu.cn, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1241699561396294088, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699539392975461, authorId=1241699559861178819, language=EN, stringName=Xiaofeng QIN, firstName=Xiaofeng, middleName=null, lastName=QIN, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1.太原理工大学 机械与运载工程学院,太原 030002)])]), Author(id=1241699561966719453, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699539392975461, orderNo=3, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1241699562063188448, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699539392975461, authorId=1241699561966719453, language=EN, stringName=Haixia QU, firstName=Haixia, middleName=null, lastName=QU, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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2.Central Research Institute, Baoshan Iron and Steel Co., Ltd. , Shanghai 201900, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1241699562138685926, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699539392975461, authorId=1241699561966719453, language=CN, stringName=瞿海霞, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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2.宝山钢铁股份有限公司 中央研究院,上海 201900, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1241699559429165483, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699539392975461, xref=2., ext=[AuthorCompanyExt(id=1241699559454331309, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699539392975461, companyId=1241699559429165483, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1.College of Mechanical and Vehicle Engineering, Taiyuan University of Technology, Taiyuan 030002, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1241699562470035952, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699539392975461, authorId=1241699562268709352, language=CN, stringName=李硕杰, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1.太原理工大学 机械与运载工程学院,太原 030002)])]), Author(id=1241699562566504949, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699539392975461, orderNo=5, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1241699562662973946, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699539392975461, authorId=1241699562566504949, language=EN, stringName=Zhuoyang QIN, firstName=Zhuoyang, middleName=null, lastName=QIN, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1.太原理工大学 机械与运载工程学院,太原 030002, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1241699559315919267, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699539392975461, xref=1., ext=[AuthorCompanyExt(id=1241699559320113572, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699539392975461, companyId=1241699559315919267, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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1.太原理工大学 机械与运载工程学院,太原 030002)])]), Author(id=1241699562839134718, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699539392975461, orderNo=6, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=null, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1241699562943992322, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699539392975461, authorId=1241699562839134718, language=EN, stringName=Weihang XIE, firstName=Weihang, middleName=null, lastName=XIE, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1.College of Mechanical and Vehicle Engineering, Taiyuan University of Technology, Taiyuan 030002, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1241699563027878403, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699539392975461, authorId=1241699562839134718, language=CN, stringName=谢苇航, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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Force analysis diagram of the work roll, figureFileSmall=qzJEQtvO/d1oJ77tsdeSgA==, figureFileBig=k/WVeZ26yrO7l01hTcUwOw==, tableContent=null), ArticleFig(id=1241699564420387373, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699539392975461, language=CN, label=图1, caption=
工作辊受力分析简图, figureFileSmall=qzJEQtvO/d1oJ77tsdeSgA==, figureFileBig=k/WVeZ26yrO7l01hTcUwOw==, tableContent=null), ArticleFig(id=1241699566135857715, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699539392975461, language=EN, label=Fig. 2, caption=
Roller radius iteration considering elastic flattening, figureFileSmall=uO/2p4wJP8yC6vcrtrQgSg==, figureFileBig=maActOJNgaJ6bbbiPLx08Q==, tableContent=null), ArticleFig(id=1241699566236521013, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699539392975461, language=CN, label=图2, caption=
考虑弹性压扁的轧辊半径迭代, figureFileSmall=uO/2p4wJP8yC6vcrtrQgSg==, figureFileBig=maActOJNgaJ6bbbiPLx08Q==, tableContent=null), ArticleFig(id=1241699566362350138, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699539392975461, language=EN, label=Fig. 3, caption=
Force diagram of the working roll of the four-high rolling mill, figureFileSmall=qJd0kmuz7ObcNhfGNd75vw==, figureFileBig=wrQdKvNTpGkgoi7FUmqiwQ==, tableContent=null), ArticleFig(id=1241699566446236220, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699539392975461, language=CN, label=图3, caption=
四辊轧机工作辊受力简图, figureFileSmall=qJd0kmuz7ObcNhfGNd75vw==, figureFileBig=wrQdKvNTpGkgoi7FUmqiwQ==, tableContent=null), ArticleFig(id=1241699566559482432, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699539392975461, language=EN, label=Fig. 4, caption=
Flow chart for calculating contact pressure between rolls by influence function method, figureFileSmall=pLmDh65ZmX9v0s8chxREMA==, figureFileBig=Hs0+X4RPS5ixGP+VwekJdA==, tableContent=null), ArticleFig(id=1241699566639174211, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699539392975461, language=CN, label=图4, caption=
影响函数法计算辊间接触压力流程图, figureFileSmall=pLmDh65ZmX9v0s8chxREMA==, figureFileBig=Hs0+X4RPS5ixGP+VwekJdA==, tableContent=null), ArticleFig(id=1241699566714671686, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699539392975461, language=EN, label=Fig. 5, caption=
Model force diagram, figureFileSmall=6kphTe+i/fgGz9d2pfMVvg==, figureFileBig=JZyEKwDUyFhDYyEdPJNtcg==, tableContent=null), ArticleFig(id=1241699566811140681, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699539392975461, language=CN, label=图5, caption=
模型受力简图, figureFileSmall=6kphTe+i/fgGz9d2pfMVvg==, figureFileBig=JZyEKwDUyFhDYyEdPJNtcg==, tableContent=null), ArticleFig(id=1241699566895026763, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699539392975461, language=EN, label=Fig. 6, caption=
Force diagram of the cross section position in the bearing inner model, figureFileSmall=FEMoQbOi7K9MYhU2YMVnHQ==, figureFileBig=JAJJ7av1tnHkFjtPFI3c1A==, tableContent=null), ArticleFig(id=1241699566953747021, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699539392975461, language=CN, label=图6, caption=
横截面位置在轴承内模型受力简图, figureFileSmall=FEMoQbOi7K9MYhU2YMVnHQ==, figureFileBig=JAJJ7av1tnHkFjtPFI3c1A==, tableContent=null), ArticleFig(id=1241699567020855887, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699539392975461, language=EN, label=Fig. 7, caption=
Force diagram of the cross section position on the outer model of the bearing, figureFileSmall=Y1ckPrp2WTRjETmZ3ODLCg==, figureFileBig=mhUp2alQIVh8gy+K6g44bA==, tableContent=null), ArticleFig(id=1241699567104741969, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699539392975461, language=CN, label=图7, caption=
横截面位置在轴承外模型受力简图, figureFileSmall=Y1ckPrp2WTRjETmZ3ODLCg==, figureFileBig=mhUp2alQIVh8gy+K6g44bA==, tableContent=null), ArticleFig(id=1241699567176045138, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699539392975461, language=EN, label=Fig. 8, caption=
Comparison of cycle times, figureFileSmall=lpZk7lw53aPIHxObzOQIBg==, figureFileBig=Tk94ZNg2+l9KRoy/clAkhA==, tableContent=null), ArticleFig(id=1241699567280902739, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699539392975461, language=CN, label=图8, caption=
循环次数对比, figureFileSmall=lpZk7lw53aPIHxObzOQIBg==, figureFileBig=Tk94ZNg2+l9KRoy/clAkhA==, tableContent=null), ArticleFig(id=1241699567339622996, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699539392975461, language=EN, label=Tab. 1, caption=
Partial fatigue tensile test data
, figureFileSmall=null, figureFileBig=null, tableContent=
编号 Number | 拉伸应力 Tensile stress σT/MPa | 循环次数 Cycle times N |
|---|
| 1 | 200 | 286 423 |
| 2 | 200 | 309 984 |
| 3 | 200 | 342 538 |
| 4 | 240 | 127 467 |
| 5 | 240 | 103 214 |
| 6 | 240 | 75 822 |
| 7 | 280 | 36 141 |
| 8 | 280 | 26 845 |
| 9 | 280 | 21 104 |
), ArticleFig(id=1241699567402537557, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699539392975461, language=CN, label=表1, caption=
部分疲劳拉伸试验数据
, figureFileSmall=null, figureFileBig=null, tableContent=
编号 Number | 拉伸应力 Tensile stress σT/MPa | 循环次数 Cycle times N |
|---|
| 1 | 200 | 286 423 |
| 2 | 200 | 309 984 |
| 3 | 200 | 342 538 |
| 4 | 240 | 127 467 |
| 5 | 240 | 103 214 |
| 6 | 240 | 75 822 |
| 7 | 280 | 36 141 |
| 8 | 280 | 26 845 |
| 9 | 280 | 21 104 |
), ArticleFig(id=1241699567490617942, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699539392975461, language=EN, label=Tab. 2, caption=
Contrast of life
, figureFileSmall=null, figureFileBig=null, tableContent=
| 拉伸应力Tensile stress σT /MPa | S-N中值寿命 S-N median life N0 | 多轴疲劳寿命 Multi-axial fatigue life N1 | 寿命误差 Life error ψ/% |
|---|
| 200 | 320 377 | 298 631 | 6.79 |
| 240 | 94 847 | 105 513 | 11.24 |
| 280 | 28 079 | 26 014 | 7.35 |
), ArticleFig(id=1241699567553532503, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699539392975461, language=CN, label=表2, caption=
寿命对比
, figureFileSmall=null, figureFileBig=null, tableContent=
| 拉伸应力Tensile stress σT /MPa | S-N中值寿命 S-N median life N0 | 多轴疲劳寿命 Multi-axial fatigue life N1 | 寿命误差 Life error ψ/% |
|---|
| 200 | 320 377 | 298 631 | 6.79 |
| 240 | 94 847 | 105 513 | 11.24 |
| 280 | 28 079 | 26 014 | 7.35 |
), ArticleFig(id=1241699567637418584, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699539392975461, language=EN, label=Tab. 3, caption=
Stress spectrum of the working roll neck bearing section of a four-high mill in a production line
, figureFileSmall=null, figureFileBig=null, tableContent=
区间 Interval | 弯曲应力 Bending stress σ/MPa | 扭转切应力 Torsional shear stress τ/MPa | 等效应力 Equivalent stress σe/MPa |
|---|
| W1Y5 | 66.064 6 | 4.411 3 | 66.504 5 |
| W2Y5 | 64.448 3 | 4.652 5 | 64.949 6 |
| W3Y5 | 65.020 1 | 5.075 7 | 65.611 2 |
| W4Y5 | 71.902 1 | 6.035 0 | 72.657 2 |
| W5Y5 | 66.847 2 | 6.350 6 | 67.745 2 |
| W6Y5 | 65.090 2 | 6.950 7 | 66.193 1 |
| W7Y5 | 67.724 | 7.696 1 | 69.022 1 |
| W8Y5 | 70.713 | 8.411 3 | 72.196 7 |
| W9Y5 | 71.265 8 | 8.689 3 | 72.836 1 |
| W10Y5 | 71.017 8 | 9.202 9 | 72.782 9 |
| W11Y5 | 72.464 4 | 9.805 2 | 74.425 9 |
| W12Y5 | 76.008 6 | 10.161 6 | 78.017 7 |
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某生产线四辊轧机工作辊辊颈轴承段应力谱
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区间 Interval | 弯曲应力 Bending stress σ/MPa | 扭转切应力 Torsional shear stress τ/MPa | 等效应力 Equivalent stress σe/MPa |
|---|
| W1Y5 | 66.064 6 | 4.411 3 | 66.504 5 |
| W2Y5 | 64.448 3 | 4.652 5 | 64.949 6 |
| W3Y5 | 65.020 1 | 5.075 7 | 65.611 2 |
| W4Y5 | 71.902 1 | 6.035 0 | 72.657 2 |
| W5Y5 | 66.847 2 | 6.350 6 | 67.745 2 |
| W6Y5 | 65.090 2 | 6.950 7 | 66.193 1 |
| W7Y5 | 67.724 | 7.696 1 | 69.022 1 |
| W8Y5 | 70.713 | 8.411 3 | 72.196 7 |
| W9Y5 | 71.265 8 | 8.689 3 | 72.836 1 |
| W10Y5 | 71.017 8 | 9.202 9 | 72.782 9 |
| W11Y5 | 72.464 4 | 9.805 2 | 74.425 9 |
| W12Y5 | 76.008 6 | 10.161 6 | 78.017 7 |
), ArticleFig(id=1241699567796802138, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699539392975461, language=EN, label=Tab. 4, caption=
Cycle times calculation
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区间 Interval | 辊颈循环次数 Roll neck cycle times nwk | 多轴疲劳寿命 Multiaxial fatigue life N1 | 寿命误差 Life error ψ/% |
|---|
| W1Y5 | 26 516 | 22 868 | 13.76 |
| W2Y5 | 26 151 | 21 908 | 16.22 |
| W3Y5 | 25 299 | 23 351 | 7.70 |
| W4Y5 | 24 748 | 21 323 | 13.84 |
| W5Y5 | 24 915 | 25 965 | 4.22 |
| W6Y5 | 24 488 | 20 580 | 15.96 |
| W7Y5 | 23 563 | 24 366 | 3.41 |
| W8Y5 | 23 738 | 25 005 | 5.34 |
| W9Y5 | 21 517 | 23 236 | 7.99 |
| W10Y5 | 21 572 | 18 699 | 13.32 |
| W11Y5 | 21 845 | 23 357 | 6.92 |
| W12Y5 | 23 587 | 21 563 | 8.58 |
), ArticleFig(id=1241699567880688219, tenantId=1146029695717560320, journalId=1227999626482147330, articleId=1241699539392975461, language=CN, label=表4, caption=
循环次数计算
, figureFileSmall=null, figureFileBig=null, tableContent=
区间 Interval | 辊颈循环次数 Roll neck cycle times nwk | 多轴疲劳寿命 Multiaxial fatigue life N1 | 寿命误差 Life error ψ/% |
|---|
| W1Y5 | 26 516 | 22 868 | 13.76 |
| W2Y5 | 26 151 | 21 908 | 16.22 |
| W3Y5 | 25 299 | 23 351 | 7.70 |
| W4Y5 | 24 748 | 21 323 | 13.84 |
| W5Y5 | 24 915 | 25 965 | 4.22 |
| W6Y5 | 24 488 | 20 580 | 15.96 |
| W7Y5 | 23 563 | 24 366 | 3.41 |
| W8Y5 | 23 738 | 25 005 | 5.34 |
| W9Y5 | 21 517 | 23 236 | 7.99 |
| W10Y5 | 21 572 | 18 699 | 13.32 |
| W11Y5 | 21 845 | 23 357 | 6.92 |
| W12Y5 | 23 587 | 21 563 | 8.58 |
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