Article(id=1227620262913438307, tenantId=1146029695717560320, journalId=1225147924628267009, issueId=1227620260010979924, articleNumber=null, orderNo=null, doi=10.16385/j.cnki.issn.1004-4523.2024.05.012, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1658764800000, receivedDateStr=2022-07-26, revisedDate=1667404800000, revisedDateStr=2022-11-03, acceptedDate=null, acceptedDateStr=null, onlineDate=1770617078760, onlineDateStr=2026-02-09, pubDate=1716825600000, pubDateStr=2024-05-28, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1770617078760, onlineIssueDateStr=2026-02-09, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1770617078760, creator=13701087609, updateTime=1770617078760, updator=13701087609, issue=Issue{id=1227620260010979924, tenantId=1146029695717560320, journalId=1225147924628267009, year='2024', volume='37', issue='5', pageStart='729', pageEnd='902', issueExtLink='null', onlineDate='null', pubDate='null', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1770617078068, creator=13701087609, updateTime=1770795280844, updator=13701087609, preIssue=null, nextIssue=null, ext={EN=IssueExt(id=1228367696677499202, tenantId=1146029695717560320, journalId=1225147924628267009, issueId=1227620260010979924, language=EN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=), CN=IssueExt(id=1228367696677499203, tenantId=1146029695717560320, journalId=1225147924628267009, issueId=1227620260010979924, language=CN, specialIssueTitle=, coverIllustrator=null, specialIssueEditor=, specialIssueAbout=)}, issueFiles=null}, startPage=838, endPage=846, ext={EN=ArticleExt(id=1227620263794242159, articleId=1227620262913438307, tenantId=1146029695717560320, journalId=1225147924628267009, language=EN, title=Experimental investigation on the torsional aerodynamic instability characteristics of single-axis PV trackers in smooth flow, columnId=null, journalTitle=Journal of Vibration Engineering, columnName=null, runingTitle=null, highlight=null, articleAbstract=
The power generation of single-axis PV trackers system is significantly higher than that of the fixed photovoltaic system,making them widely used in recent years. The single-axis PV tracker is prone to torsional aerodynamic instability in the strong wind condition due to its low torsional stiffness,resulting in structural damage. In order to understand the occurrence conditions and mechanism of this vibration further,the present study investigates the influence of structural natural frequency,tilt angle,damping ratio and other parameters on torsional aerodynamic instability through wind tunnel tests with elastic support. The variations of aerodynamic damping and aerodynamic stiffness with wind speed and tilt angle are focused. The result shows torsional aerodynamic instability of single-axis PV trackers shows strong aerodynamic coupling effect. The aerodynamic damping and aerodynamic stiffness are significant parameters that can influence aerodynamic instability,which are sensitive to wind speed and tilt angle with self-excited vibration characteristics. The increase in torsional stiffness can effectively limit the amplitude at certain tilt angles and improve the critical wind speed of the structure at various tilt angles. The unstable tilt angle is approximately located in the range of -15°~20°. It is suggested that a large tilt angle can be used to avoid aerodynamic instability in strong wind. When a small tilt angle is inevitable,higher critical wind speed corresponds to a 0° tilt angle.
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由于发电量明显高于固定式光伏系统,平单轴光伏发电系统近些年得到了广泛的应用。平单轴光伏支架由于扭转刚度较低,在大风天气下容易出现扭转气动失稳现象,从而造成支架结构破坏。为了进一步深入了解该振动的发生条件和机理,本研究通过节段模型测振风洞试验研究结构自振频率、倾角、阻尼等参数对扭转气动失稳的影响,分析了气动阻尼和气动刚度随着风速和倾角的变化规律。研究表明,平单轴光伏支架的扭转气动失稳表现出较强的气动耦合效应,气动阻尼和气动刚度是影响平单轴光伏支架气动失稳的重要参数,对风速和倾角的变化较为敏感,该失稳现象具备自激振动的特点;扭转刚度的提高在某些倾角下可以有效地限制振幅,同时可提高结构在各倾角的临界风速;扭转气动失稳的倾角范围为-15°~20°,0°倾角附近临界风速较高,若采用小倾角进行保护时,建议将大风保护角度设为0°。
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, authorsList=马文勇, 康霄汉, 张晓斌, 陈伟, 谭强)}, authors=[Author(id=1227675672798228768, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=ma@stdu.edu.cn, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1227675672974389548, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, authorId=1227675672798228768, language=EN, stringName=Wen-yong MA, firstName=Wen-yong, middleName=null, lastName=MA, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
1, 2, 3, address=
1State Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures,Shijiazhuang Tiedao University,Shijiazhuang 050043,China
2Key Laboratory of Road and Railway Engineering Safety,Ministry of Education,Shijiazhuang Tiedao University,Shijiazhuang 050043,China
3School of Civil Engineering,Shijiazhuang Tiedao University,Shijiazhuang 050043,China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1227675673070858546, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, authorId=1227675672798228768, language=CN, stringName=马文勇, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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1石家庄铁道大学省部共建交通工程结构力学行为与系统安全国家重点实验室,河北石家庄 050043
2石家庄铁道大学道路与铁道工程安全保障省部共建教育部重点实验室,河北石家庄 050043
3石家庄铁道大学土木工程学院,河北石家庄 050043, bio={"content":"
马文勇(1981—),男,博士,教授。电话:(0311)87939488; E-mail:ma@stdu.edu.cn。
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马文勇(1981—),男,博士,教授。电话:(0311)87939488; E-mail:ma@stdu.edu.cn。
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3石家庄铁道大学土木工程学院,河北石家庄 050043)])]), Author(id=1227675673200881975, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, orderNo=1, 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=1227675673368654143, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, authorId=1227675673200881975, language=EN, stringName=Xiao-han KANG, firstName=Xiao-han, middleName=null, lastName=KANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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3School of Civil Engineering,Shijiazhuang Tiedao University,Shijiazhuang 050043,China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1227675673574175047, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, authorId=1227675673200881975, language=CN, stringName=康霄汉, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
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3石家庄铁道大学土木工程学院,河北石家庄 050043, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1227675672458490119, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, xref=3, ext=[AuthorCompanyExt(id=1227675672466878728, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, companyId=1227675672458490119, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3School of Civil Engineering,Shijiazhuang Tiedao University,Shijiazhuang 050043,China), AuthorCompanyExt(id=1227675672475267337, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, companyId=1227675672458490119, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
3石家庄铁道大学土木工程学院,河北石家庄 050043)])]), Author(id=1227675673649672524, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, orderNo=2, 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=1227675673746141521, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, authorId=1227675673649672524, language=EN, stringName=Xiao-bin ZHANG, firstName=Xiao-bin, middleName=null, lastName=ZHANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
3, address=
3School of Civil Engineering,Shijiazhuang Tiedao University,Shijiazhuang 050043,China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1227675673821638998, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, authorId=1227675673649672524, language=CN, stringName=张晓斌, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
3, address=
3石家庄铁道大学土木工程学院,河北石家庄 050043, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1227675672458490119, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, xref=3, ext=[AuthorCompanyExt(id=1227675672466878728, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, companyId=1227675672458490119, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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3石家庄铁道大学土木工程学院,河北石家庄 050043)])]), Author(id=1227675673913913691, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, 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=1227675674001994080, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, authorId=1227675673913913691, language=EN, stringName=Wei CHEN, firstName=Wei, middleName=null, lastName=CHEN, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
4, address=
4School of Mechanical Engineering,Shijiazhuang Tiedao University,Shijiazhuang 050043,China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1227675674085880165, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, authorId=1227675673913913691, language=CN, stringName=陈伟, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
4, address=
4石家庄铁道大学机械工程学院,河北石家庄 050043, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1227675672571736334, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, xref=4, ext=[AuthorCompanyExt(id=1227675672580124944, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, companyId=1227675672571736334, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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5, address=
5Jiangsu Guoqiang Singsun Energy Co.,Ltd.,Changzhou 213363,China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1227675674366898546, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, authorId=1227675674178154856, language=CN, stringName=谭强, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=
5, address=
5江苏国强兴晟能源科技有限公司, 江苏常州 213363, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null)}, companyList=[AuthorCompany(id=1227675672668205334, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, xref=5, ext=[AuthorCompanyExt(id=1227675672672399639, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, companyId=1227675672668205334, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
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5江苏国强兴晟能源科技有限公司, 江苏常州 213363)])])], keywords=[Keyword(id=1227675675868459389, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, language=EN, orderNo=1, keyword=aerodynamic instability), Keyword(id=1227675675943956864, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, language=EN, orderNo=2, keyword=single-axis PV trackers), Keyword(id=1227675676040425861, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, language=EN, orderNo=3, keyword=wind tunnel tests), Keyword(id=1227675676183032206, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, language=EN, orderNo=4, keyword=critical wind speed), Keyword(id=1227675676275306898, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, language=EN, orderNo=5, keyword=aerodynamic damping), Keyword(id=1227675676354998680, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, language=CN, orderNo=1, keyword=气动失稳), Keyword(id=1227675676430496153, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, language=CN, orderNo=2, keyword=平单轴光伏支架), Keyword(id=1227675676497605021, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, language=CN, orderNo=3, keyword=风洞试验), Keyword(id=1227675676568908192, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, language=CN, orderNo=4, keyword=临界风速), Keyword(id=1227675676665377189, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, language=CN, orderNo=5, keyword=气动阻尼)], refs=[Reference(id=1227675681262334525, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, doi=null, pmid=null, pmcid=null, year=2018, volume=35, issue=10, pageStart=10, pageEnd=16, url=null, language=null, rfNumber=[1], rfOrder=0, authorNames=王骑, 李郁林, 李志国, journalName=工程力学, refType=null, unstructuredReference=王骑, 李郁林, 李志国,等. 不同风攻角下薄平板的颤振导数[J].
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5Jiangsu Guoqiang Singsun Energy Co.,Ltd.,Changzhou 213363,China), AuthorCompanyExt(id=1227675672680788248, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, companyId=1227675672668205334, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=
5江苏国强兴晟能源科技有限公司, 江苏常州 213363)])], figs=[ArticleFig(id=1227675676866703793, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, language=EN, label=Fig.1, caption=
The torsional aerodynamic instability of single-axis PV tracker, figureFileSmall=s0IEGwTKADXClydIIjAKag==, figureFileBig=BpJoRq0KQHXJcFplpyxpXg==, tableContent=null), ArticleFig(id=1227675676942201269, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, language=CN, label=图1, caption=
平单轴光伏支架扭转气动失稳, figureFileSmall=s0IEGwTKADXClydIIjAKag==, figureFileBig=BpJoRq0KQHXJcFplpyxpXg==, tableContent=null), ArticleFig(id=1227675677047058873, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, language=EN, label=Fig.2, caption=
The single-axis PV tracker and its vibration characteristics, figureFileSmall=srZF/xuD5ypzw3e68gyCKg==, figureFileBig=NNDUSLx2yxwwHUlLasxjrQ==, tableContent=null), ArticleFig(id=1227675677118362044, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, language=CN, label=图2, caption=
平单轴光伏支架系统及振动特性, figureFileSmall=srZF/xuD5ypzw3e68gyCKg==, figureFileBig=NNDUSLx2yxwwHUlLasxjrQ==, tableContent=null), ArticleFig(id=1227675677214831042, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, language=EN, label=Fig.3, caption=
Schematic diagram of single-axis PV tracker model test, figureFileSmall=Md4p1ti6C2jguhrRvs4IHw==, figureFileBig=CuAxAmty89nt0CxQvdN6eQ==, tableContent=null), ArticleFig(id=1227675677302911431, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, language=CN, label=图3, caption=
平单轴光伏支架测振模型试验示意图, figureFileSmall=Md4p1ti6C2jguhrRvs4IHw==, figureFileBig=CuAxAmty89nt0CxQvdN6eQ==, tableContent=null), ArticleFig(id=1227675677386797516, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, language=EN, label=Fig.4, caption=
Torsional inertia equivalent model vibration test system for PV panel, figureFileSmall=hyF3h39SxsGOtZHKiLUzbg==, figureFileBig=yy49AoG8cwYTqQBNveNnlQ==, tableContent=null), ArticleFig(id=1227675677491655122, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, language=CN, label=图4, caption=
光伏板转动惯量等效模型测振试验系统, figureFileSmall=hyF3h39SxsGOtZHKiLUzbg==, figureFileBig=yy49AoG8cwYTqQBNveNnlQ==, tableContent=null), ArticleFig(id=1227675677604901335, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, language=EN, label=Fig.5, caption=
Definition of the torsional angle, figureFileSmall=gS1mVUYIvWVyHesKzP9pVQ==, figureFileBig=qSVPtJa0fkoX7wTATVBCSQ==, tableContent=null), ArticleFig(id=1227675677692981722, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, language=CN, label=图5, caption=
模型扭转角度, figureFileSmall=gS1mVUYIvWVyHesKzP9pVQ==, figureFileBig=qSVPtJa0fkoX7wTATVBCSQ==, tableContent=null), ArticleFig(id=1227675677785256417, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, language=EN, label=Fig.6, caption=
Time history of vibration response, figureFileSmall=1O9kH+Tye7/p+pI8v9ZhOw==, figureFileBig=8v6wJkTNSFSplyid8PB15Q==, tableContent=null), ArticleFig(id=1227675677856559590, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, language=CN, label=图6, caption=
振动响应时程曲线, figureFileSmall=1O9kH+Tye7/p+pI8v9ZhOw==, figureFileBig=8v6wJkTNSFSplyid8PB15Q==, tableContent=null), ArticleFig(id=1227675677919474155, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, language=EN, label=Fig.7, caption=
The amplitude of model with different tilt angles under different wind speeds, figureFileSmall=tbZen0ocLaQtUvZ20R1/Pw==, figureFileBig=/CmWG5211rQJZOjZOzVvDQ==, tableContent=null), ArticleFig(id=1227675678028526064, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, language=CN, label=图7, caption=
不同倾角的试验模型在不同风速下的振幅, figureFileSmall=tbZen0ocLaQtUvZ20R1/Pw==, figureFileBig=/CmWG5211rQJZOjZOzVvDQ==, tableContent=null), ArticleFig(id=1227675678112412149, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, language=EN, label=Fig.8, caption=
The critical wind speeds of two test model at different tilt angles, figureFileSmall=nOBFFRZ1A4tW7eW5EScMEw==, figureFileBig=v/UQ0vF8ar1GxEbohnujIQ==, tableContent=null), ArticleFig(id=1227675678196298232, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, language=CN, label=图8, caption=
两种试验模型在不同倾角下的临界风速, figureFileSmall=nOBFFRZ1A4tW7eW5EScMEw==, figureFileBig=v/UQ0vF8ar1GxEbohnujIQ==, tableContent=null), ArticleFig(id=1227675678275990012, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, language=EN, label=Fig.9, caption=
The frequencies in still air, figureFileSmall=zzGKSpiwg7NL5gAMrxb6Zg==, figureFileBig=4HDdnwwZwgUQADsslKzkZg==, tableContent=null), ArticleFig(id=1227675678338904575, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, language=CN, label=图9, caption=
无风环境下的模型振动频率, figureFileSmall=zzGKSpiwg7NL5gAMrxb6Zg==, figureFileBig=4HDdnwwZwgUQADsslKzkZg==, tableContent=null), ArticleFig(id=1227675678431179267, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, language=EN, label=Fig.10, caption=
The damping ratio in still air, figureFileSmall=Ri5wfbm0DuX/qBrMYSx+Cg==, figureFileBig=tGe4Tn8cZSdDFOqutT418A==, tableContent=null), ArticleFig(id=1227675678536036870, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, language=CN, label=图10, caption=
无风环境下的模型阻尼比, figureFileSmall=Ri5wfbm0DuX/qBrMYSx+Cg==, figureFileBig=tGe4Tn8cZSdDFOqutT418A==, tableContent=null), ArticleFig(id=1227675678670254606, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, language=EN, label=Fig.11, caption=
Displacement response with different tilt angles under external excitation, figureFileSmall=Pm4IJKdE12dXzGUPO7Huww==, figureFileBig=W/pa/xCmeZZcCprP5p8pZQ==, tableContent=null), ArticleFig(id=1227675678758334997, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, language=CN, label=图11, caption=
不同倾角模型外部激励下的位移响应, figureFileSmall=Pm4IJKdE12dXzGUPO7Huww==, figureFileBig=W/pa/xCmeZZcCprP5p8pZQ==, tableContent=null), ArticleFig(id=1227675678850609690, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, language=EN, label=Fig.12, caption=
The variation trend of damping ratio with wind speed under different tilt angles, figureFileSmall=a7K1PB/PMJ+BnhiyyBfygg==, figureFileBig=zkRH1MHyvpXvbTAn5eivdQ==, tableContent=null), ArticleFig(id=1227675680247312925, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, language=CN, label=图12, caption=
不同倾角下阻尼比随风速的变化趋势, figureFileSmall=a7K1PB/PMJ+BnhiyyBfygg==, figureFileBig=zkRH1MHyvpXvbTAn5eivdQ==, tableContent=null), ArticleFig(id=1227675680352170529, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, language=EN, label=Fig.13, caption=
The variation trend of frequency with wind speed under different tilt angles, figureFileSmall=v5bwfaxG05najezQy/7mNg==, figureFileBig=yK9N9DbToE2Cm9Ou28FjYw==, tableContent=null), ArticleFig(id=1227675680431862309, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, language=CN, label=图13, caption=
不同倾角下频率随风速的变化趋势, figureFileSmall=v5bwfaxG05najezQy/7mNg==, figureFileBig=yK9N9DbToE2Cm9Ou28FjYw==, tableContent=null), ArticleFig(id=1227675680532525608, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, language=EN, label=Tab. 1, caption=
Test parameters
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数名称 | 符号 | 单位 | 缩尺比 | 工程设计值 | 模型理论值 | 模型实际值 |
|---|
| 弦长 | B | m | 1∶3 | 2.384 | 0.800 | 0.800 |
| 单位长度质量 | m | kg/m | 1∶9 | 35.746 | 3.972 | 3.975 |
| 单位长度转动惯量 | Jm | kg·m | 1∶80 | 16.940 | 0.209 | 0.212 |
| 一阶扭转自振频率 | f | Hz | 1∶1 | 1.300 | 1.300 | 1.274 |
| 系统总阻尼比 | ζ | — | — | — | — | 0.064 |
| 风速 | U | m/s | 1∶3 | — | — | — |
| 倾角范围 |  | ° | — | -60~60 | -60~60 | -60~60 |
), ArticleFig(id=1227675680616411691, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, language=CN, label=表1, caption=
主要试验参数
, figureFileSmall=null, figureFileBig=null, tableContent=
| 参数名称 | 符号 | 单位 | 缩尺比 | 工程设计值 | 模型理论值 | 模型实际值 |
|---|
| 弦长 | B | m | 1∶3 | 2.384 | 0.800 | 0.800 |
| 单位长度质量 | m | kg/m | 1∶9 | 35.746 | 3.972 | 3.975 |
| 单位长度转动惯量 | Jm | kg·m | 1∶80 | 16.940 | 0.209 | 0.212 |
| 一阶扭转自振频率 | f | Hz | 1∶1 | 1.300 | 1.300 | 1.274 |
| 系统总阻尼比 | ζ | — | — | — | — | 0.064 |
| 风速 | U | m/s | 1∶3 | — | — | — |
| 倾角范围 |  | ° | — | -60~60 | -60~60 | -60~60 |
), ArticleFig(id=1227675680721269294, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, language=EN, label=Tab. 2, caption=
Test cases
, figureFileSmall=null, figureFileBig=null, tableContent=
| 类别 | 风速/(m‧s‒1) | 倾角/(°) | 自振频率/Hz | 总阻尼比 | 测试参数 |
|---|
| Ⅰ | 0~16 | -60~60 | 1.27 | 0.064 | 风致振动 |
| 2.18 | 0.031 |
| Ⅱ | 0 | -40, -30, -10, 0, 10, 30, 40 | 1.27 | 0.064 | 自振特性 |
| Ⅲ | 0 | 自振特性 |
| Ⅳ | 0~临界风速 | 外部激励自由振动 |
), ArticleFig(id=1227675680813543985, tenantId=1146029695717560320, journalId=1225147924628267009, articleId=1227620262913438307, language=CN, label=表2, caption=
试验工况
, figureFileSmall=null, figureFileBig=null, tableContent=
| 类别 | 风速/(m‧s‒1) | 倾角/(°) | 自振频率/Hz | 总阻尼比 | 测试参数 |
|---|
| Ⅰ | 0~16 | -60~60 | 1.27 | 0.064 | 风致振动 |
| 2.18 | 0.031 |
| Ⅱ | 0 | -40, -30, -10, 0, 10, 30, 40 | 1.27 | 0.064 | 自振特性 |
| Ⅲ | 0 | 自振特性 |
| Ⅳ | 0~临界风速 | 外部激励自由振动 |
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