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In order to investigate the effect of tower slewing motion on tip displacement and to provide a basis for collecting tip displacement data to improve the accuracy of tower steel structure damage diagnosis, this paper adopts a tower physical structure experiment bench to select three different strokes of high, medium and low slewing speeds, and to collect tip displacement during slewing motion and static tip displacement. A characterization study of the tip displacement for slewing stroke and speed change was carried out; the structural response characteristics of the slewing motion were established and characterized by noise characterization coefficients. The experimental results show that the collected tip displacements are close to static displacements when the slewing stroke is larger, the slewing speed is slower, and the noise characterization coefficient is smaller than a set threshold. The purpose of this study is to avoid the influence of slewing motion on the real-time monitoring of structural damage, and to give a scientific basis for the setting of the data acquisition conditions for the required tower steel structure damage diagnosis.
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为探究塔机回转运动对顶端位移的影响,给提高塔身钢结构损伤诊断准确性提供采集顶端位移数据的依据,采用搭建的塔机物理结构实验台选取了3种不同行程下的高、中、低3种回转速度,采集塔机回转运动过程中的顶端位移和静态的顶端位移,进行了回转行程和速度变化的顶端位移特征研究,建立了回转运动的结构响应特征,以噪声表征系数进行特征描述。实验结果表明:当回转行程越大、回转速度越慢并且噪声表征系数小于设定的阈值时,采集的顶端位移接近静态位移。该研究的目的是避免回转运动影响结构损伤的实时监测,为所需塔身钢结构损伤诊断数据采集条件的设定提供了科学依据。
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, authorsList=孙哲)}, authors=[Author(id=1207748659400254353, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658082486817596, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=jake2356@sina.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1207748659509306262, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658082486817596, authorId=1207748659400254353, language=EN, stringName=Zhe SUN, firstName=Zhe, middleName=null, lastName=SUN, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=China Railway 14th Bureau Group Construction Engineering Corporation Limited, Jinan 250101, Shandong, China, bio=null, bioImg=null, bioContent=null, aboutCorrespAuthor=null), CN=AuthorExt(id=1207748659584803736, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658082486817596, authorId=1207748659400254353, language=CN, stringName=孙哲, firstName=null, middleName=null, lastName=null, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=null, address=中铁十四局集团建筑工程有限公司,山东 济南 250101, bio={"content":"
孙哲(1978—),男,高级工程师。E-mail:jake2356@sina.com
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孙哲(1978—),男,高级工程师。E-mail:jake2356@sina.com
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2016., articleTitle=基于图谱特征的塔身结构损伤诊断模型研究, refAbstract=null)], funds=[Fund(id=1207748662466289708, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658082486817596, awardId=2021CXGC011204, language=CN, fundingSource=山东省重点研发计划资助项目(重大科技创新工程)(2021CXGC011204), fundOrder=null, country=null)], companyList=[AuthorCompany(id=1207748659291202444, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658082486817596, xref=null, ext=[AuthorCompanyExt(id=1207748659299591053, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658082486817596, companyId=1207748659291202444, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=China Railway 14th Bureau Group Construction Engineering Corporation Limited, Jinan 250101, Shandong, China), AuthorCompanyExt(id=1207748659312173966, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658082486817596, companyId=1207748659291202444, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=中铁十四局集团建筑工程有限公司,山东 济南 250101)])], figs=[ArticleFig(id=1207748660444636087, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658082486817596, language=EN, label=Fig.1, caption=
The model coordinate system, figureFileSmall=ZtP1AuchJfrHyA0mlm6HTw==, figureFileBig=EChIHp9zBF9Bgq93X9WmUA==, tableContent=null), ArticleFig(id=1207748660545299388, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658082486817596, language=CN, label=图1, caption=
模型坐标系, figureFileSmall=ZtP1AuchJfrHyA0mlm6HTw==, figureFileBig=EChIHp9zBF9Bgq93X9WmUA==, tableContent=null), ArticleFig(id=1207748660650156990, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658082486817596, language=EN, label=Fig.2, caption=
Sketch of tower deformation model, figureFileSmall=HtBwqQHSchJGCR3pT3eTag==, figureFileBig=OhXWmznKr/yAu3KLb6lhjQ==, tableContent=null), ArticleFig(id=1207748660729848770, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658082486817596, language=CN, label=图2, caption=
塔身变形模型, figureFileSmall=HtBwqQHSchJGCR3pT3eTag==, figureFileBig=OhXWmznKr/yAu3KLb6lhjQ==, tableContent=null), ArticleFig(id=1207748660822123461, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658082486817596, language=EN, label=Fig.3, caption=
Tower physical structure experiment bench, figureFileSmall=I37nCSTwjgWTAKIYfojI7g==, figureFileBig=L7+6OekvS/GW/XGXRuLgiQ==, tableContent=null), ArticleFig(id=1207748660935369678, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658082486817596, language=CN, label=图3, caption=
塔机物理结构实验台, figureFileSmall=I37nCSTwjgWTAKIYfojI7g==, figureFileBig=L7+6OekvS/GW/XGXRuLgiQ==, tableContent=null), ArticleFig(id=1207748661057004500, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658082486817596, language=EN, label=Fig.4, caption=
The exterior picture of the data collector, figureFileSmall=RpV5SFd0kr+/7M1S/Bgdeg==, figureFileBig=a9RWjTKozxigR8mg1UxT2Q==, tableContent=null), ArticleFig(id=1207748661161862108, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658082486817596, language=CN, label=图4, caption=
数据采集仪器外观, figureFileSmall=RpV5SFd0kr+/7M1S/Bgdeg==, figureFileBig=a9RWjTKozxigR8mg1UxT2Q==, tableContent=null), ArticleFig(id=1207748661270914019, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658082486817596, language=EN, label=Fig.5, caption=
Slewing motion and static tip displacement, figureFileSmall=ymzmuH9o9lLHqZP15TGcRw==, figureFileBig=Ot1RK16dew65cN4RF7Kk3Q==, tableContent=null), ArticleFig(id=1207748661358994410, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658082486817596, language=CN, label=图5, caption=
回转运动和静态顶端位移, figureFileSmall=ymzmuH9o9lLHqZP15TGcRw==, figureFileBig=Ot1RK16dew65cN4RF7Kk3Q==, tableContent=null), ArticleFig(id=1207748661489017841, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658082486817596, language=EN, label=Fig.6, caption=
Different rotary speeds and static tip displacements, figureFileSmall=qBtJP2e7Eky867unos1/4Q==, figureFileBig=tVgr4n6GL5xhl153J1XoOA==, tableContent=null), ArticleFig(id=1207748661640012793, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658082486817596, language=CN, label=图6, caption=
不同回转速度和静态顶端位移, figureFileSmall=qBtJP2e7Eky867unos1/4Q==, figureFileBig=tVgr4n6GL5xhl153J1XoOA==, tableContent=null), ArticleFig(id=1207748661728093181, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658082486817596, language=EN, label=Fig.7, caption=
The picture of noise characterization coefficient, figureFileSmall=MZ/GdhyPizPTbNonDHro4g==, figureFileBig=kyjHHkqVh7uZp7/WQIcYjQ==, tableContent=null), ArticleFig(id=1207748661853921283, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658082486817596, language=CN, label=图7, caption=
噪声表征系数, figureFileSmall=MZ/GdhyPizPTbNonDHro4g==, figureFileBig=kyjHHkqVh7uZp7/WQIcYjQ==, tableContent=null), ArticleFig(id=1207748661937807372, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658082486817596, language=EN, label=Fig.8, caption=
Slewing motion and static displacement, figureFileSmall=YB1yuNWDC68LuKquqDB8+Q==, figureFileBig=9IALX84J4D2tRW4aQuDd0Q==, tableContent=null), ArticleFig(id=1207748662025887762, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658082486817596, language=CN, label=图8, caption=
回转运动与静态位移, figureFileSmall=YB1yuNWDC68LuKquqDB8+Q==, figureFileBig=9IALX84J4D2tRW4aQuDd0Q==, tableContent=null), ArticleFig(id=1207748662126551061, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658082486817596, language=EN, label=Tab.1, caption=
Average of noise characterization coefficients
, figureFileSmall=null, figureFileBig=null, tableContent=
| 实验序号 | 回转行程/(°) | 回转速度 | 信号强度 | 噪声表征系数平均值 |
|---|
| 1 | 30 | 高速 | 12.65 | 0.535 4 |
| 2 | 30 | 中速 | 12.65 | 0.411 8 |
| 3 | 30 | 低速 | 12.89 | 0.459 8 |
| 4 | 60 | 高速 | 24.76 | 0.396 0 |
| 5 | 60 | 中速 | 24.89 | 0.298 0 |
| 6 | 60 | 低速 | 25.03 | 0.327 1 |
| 7 | 90 | 高速 | 45.65 | 0.400 1 |
| 8 | 90 | 中速 | 47.93 | 0.265 2 |
| 9 | 90 | 低速 | 48.64 | 0.166 4 |
), ArticleFig(id=1207748662218825755, tenantId=1146029695717560320, journalId=1205116883411038211, articleId=1207658082486817596, language=CN, label=表1, caption=
噪声表征系数平均值
, figureFileSmall=null, figureFileBig=null, tableContent=
| 实验序号 | 回转行程/(°) | 回转速度 | 信号强度 | 噪声表征系数平均值 |
|---|
| 1 | 30 | 高速 | 12.65 | 0.535 4 |
| 2 | 30 | 中速 | 12.65 | 0.411 8 |
| 3 | 30 | 低速 | 12.89 | 0.459 8 |
| 4 | 60 | 高速 | 24.76 | 0.396 0 |
| 5 | 60 | 中速 | 24.89 | 0.298 0 |
| 6 | 60 | 低速 | 25.03 | 0.327 1 |
| 7 | 90 | 高速 | 45.65 | 0.400 1 |
| 8 | 90 | 中速 | 47.93 | 0.265 2 |
| 9 | 90 | 低速 | 48.64 | 0.166 4 |
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