结构损伤识别的二次反馈岭估计法
TU311%O327%O329; 为了克服灵敏度方程的病态最小二乘问题,提出一种基于模态柔度变化的结构损伤识别二次反馈岭估计法.采用模态特征值和振型来组集模态柔度矩阵,建立由模态柔度变化求解单元损伤系数的损伤识别线性方程组.在损伤定位阶段,先分别利用非负最小二乘法和反馈岭估计法来初步评估损伤位置.由于这两种方法的损伤定位结果常受到不同未损单元的干扰,所以通过对它们的计算结果取交集来综合确定疑似损伤单元.在损伤定量阶段,将正则化矩阵中对应疑似损伤单元的对角元素缩小,同时将对应其余单元的对角元素放大,进行二次反馈岭估计以最终完成损伤定量识别.某简支梁数值分析表明,相比非负最小二乘法和反馈岭估计法,...
Saved in:
| Published in | 机械强度 Vol. 46; no. 4; pp. 932 - 938 |
|---|---|
| Main Authors | , , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
江西交通职业技术学院 信息工程学院,南昌 330013%江西交通职业技术学院 路桥工程学院,南昌 330013%中交长江咨询集团有限公司,南昌 330013%江西理工大学 土木与测绘工程学院 (南昌),南昌 330013
2024
|
| Subjects | |
| Online Access | Get full text |
| ISSN | 1001-9669 |
| DOI | 10.16579/j.issn.1001.9669.2024.04.023 |
Cover
| Abstract | TU311%O327%O329; 为了克服灵敏度方程的病态最小二乘问题,提出一种基于模态柔度变化的结构损伤识别二次反馈岭估计法.采用模态特征值和振型来组集模态柔度矩阵,建立由模态柔度变化求解单元损伤系数的损伤识别线性方程组.在损伤定位阶段,先分别利用非负最小二乘法和反馈岭估计法来初步评估损伤位置.由于这两种方法的损伤定位结果常受到不同未损单元的干扰,所以通过对它们的计算结果取交集来综合确定疑似损伤单元.在损伤定量阶段,将正则化矩阵中对应疑似损伤单元的对角元素缩小,同时将对应其余单元的对角元素放大,进行二次反馈岭估计以最终完成损伤定量识别.某简支梁数值分析表明,相比非负最小二乘法和反馈岭估计法,所提方法具有更强的抗噪鲁棒性.无论是损伤定位还是损伤定量,均具有更加可靠的识别精度. |
|---|---|
| AbstractList | TU311%O327%O329; 为了克服灵敏度方程的病态最小二乘问题,提出一种基于模态柔度变化的结构损伤识别二次反馈岭估计法.采用模态特征值和振型来组集模态柔度矩阵,建立由模态柔度变化求解单元损伤系数的损伤识别线性方程组.在损伤定位阶段,先分别利用非负最小二乘法和反馈岭估计法来初步评估损伤位置.由于这两种方法的损伤定位结果常受到不同未损单元的干扰,所以通过对它们的计算结果取交集来综合确定疑似损伤单元.在损伤定量阶段,将正则化矩阵中对应疑似损伤单元的对角元素缩小,同时将对应其余单元的对角元素放大,进行二次反馈岭估计以最终完成损伤定量识别.某简支梁数值分析表明,相比非负最小二乘法和反馈岭估计法,所提方法具有更强的抗噪鲁棒性.无论是损伤定位还是损伤定量,均具有更加可靠的识别精度. |
| Abstract_FL | To overcome the ill-posed least square problem in sensitivity equations,a secondary feedback ridge estimation method was proposed to detect structural damages based on modal flexibility changes.Modal eigenvalues and mode shapes were utilized to assemble the modal flexibility matrix,which was used to establish linear equations for detecting elemental damage severities by modal flexibility changes.During the damage localization stage,damage sites were primarily assessed using the non-negative least square method and the feedback ridge technique.Since the damage localization results obtained by the two methods were typically disturbed by different undamaged elements,suspicious damaged elements were comprehensively determined by taking the intersection of the two sets of damage localization results.At the damage quantification stage,the diagonal entries of the regularization matrix corresponding to suspicious elements were decreased and the diagonal entries associated with other elements were augmented.Then the second feedback ridge estimation was conducted to accomplish damage quantification.The numerical analysis of a simply supported beam indicates that the proposed method is more robust in resisting noise,compared with the non-negative least square method and feedback ridge estimation technique.Regardless of whether it is damage localization or damage quantification,the proposed method demonstrates higher reliability in detecting accuracy. |
| Author | 俞记生 朱学坤 伍晓顺 李翠 |
| AuthorAffiliation | 江西交通职业技术学院 信息工程学院,南昌 330013%江西交通职业技术学院 路桥工程学院,南昌 330013%中交长江咨询集团有限公司,南昌 330013%江西理工大学 土木与测绘工程学院 (南昌),南昌 330013 |
| AuthorAffiliation_xml | – name: 江西交通职业技术学院 信息工程学院,南昌 330013%江西交通职业技术学院 路桥工程学院,南昌 330013%中交长江咨询集团有限公司,南昌 330013%江西理工大学 土木与测绘工程学院 (南昌),南昌 330013 |
| Author_FL | LI Cui ZHU XueKun YU JiSheng WU XiaoShun |
| Author_FL_xml | – sequence: 1 fullname: LI Cui – sequence: 2 fullname: ZHU XueKun – sequence: 3 fullname: YU JiSheng – sequence: 4 fullname: WU XiaoShun |
| Author_xml | – sequence: 1 fullname: 李翠 – sequence: 2 fullname: 朱学坤 – sequence: 3 fullname: 俞记生 – sequence: 4 fullname: 伍晓顺 |
| BookMark | eNotT81KAzEYzKGCtfYxetz45cv-5SjFPyh40XNJN4l0kRQNog9QpAeLB_HiwVIQL_6iN-3j7G7rW5iiMMwwc5hh1kjNDqwmpMWAsjhKxEZO-85ZygAYFXEsKAKGFDyQ10h9mQfLfJU0nev3vGUoIojrJJh_31T3w2o8KWYPi7fLcvQ0vxsWX1fV87S8Hv88jsqPl2L2vnidVp-362TFyGOnm__aIIfbWwft3aCzv7PX3uwEzk_xIGYSOXKlEhNp3tMshVSlIcokNaHxLJAJ1NJAwkwCOjM6U0pghilwhJA3SOuv91xaI-1RNx-cnVq_2M0vTtTyHIT-Gv8FHi1YFw |
| ClassificationCodes | TU311%O327%O329 |
| ContentType | Journal Article |
| Copyright | Copyright © Wanfang Data Co. Ltd. All Rights Reserved. |
| Copyright_xml | – notice: Copyright © Wanfang Data Co. Ltd. All Rights Reserved. |
| DBID | 2B. 4A8 92I 93N PSX TCJ |
| DOI | 10.16579/j.issn.1001.9669.2024.04.023 |
| DatabaseName | Wanfang Data Journals - Hong Kong WANFANG Data Centre Wanfang Data Journals 万方数据期刊 - 香港版 China Online Journals (COJ) China Online Journals (COJ) |
| DatabaseTitleList | |
| DeliveryMethod | fulltext_linktorsrc |
| Discipline | Engineering |
| DocumentTitle_FL | SECONDARY FEEDBACK RIDGE ESTIMATION METHOD FOR STRUCTURAL DAMAGE DETECTION |
| EndPage | 938 |
| ExternalDocumentID | jxqd202404023 |
| GroupedDBID | -03 2B. 4A8 5XA 5XD 92H 92I 93N ABJNI ACGFS ALMA_UNASSIGNED_HOLDINGS CCEZO CEKLB CW9 GROUPED_DOAJ PSX TCJ TGT U1G U5M |
| ID | FETCH-LOGICAL-s1003-61a2323dd7f5e3be1808d842a78f4fa7892192eaf071f70ecfecdd92c28032043 |
| ISSN | 1001-9669 |
| IngestDate | Thu May 29 04:06:13 EDT 2025 |
| IsPeerReviewed | true |
| IsScholarly | true |
| Issue | 4 |
| Keywords | 模态柔度 模态识别 Damage detection 损伤灵敏度 Modal flexibility Modal identification Structural health monitoring 损伤识别 Damage sensitivity 结构健康监测 |
| Language | Chinese |
| LinkModel | OpenURL |
| MergedId | FETCHMERGED-LOGICAL-s1003-61a2323dd7f5e3be1808d842a78f4fa7892192eaf071f70ecfecdd92c28032043 |
| PageCount | 7 |
| ParticipantIDs | wanfang_journals_jxqd202404023 |
| PublicationCentury | 2000 |
| PublicationDate | 2024 |
| PublicationDateYYYYMMDD | 2024-01-01 |
| PublicationDate_xml | – year: 2024 text: 2024 |
| PublicationDecade | 2020 |
| PublicationTitle | 机械强度 |
| PublicationTitle_FL | Journal of Mechanical Strength |
| PublicationYear | 2024 |
| Publisher | 江西交通职业技术学院 信息工程学院,南昌 330013%江西交通职业技术学院 路桥工程学院,南昌 330013%中交长江咨询集团有限公司,南昌 330013%江西理工大学 土木与测绘工程学院 (南昌),南昌 330013 |
| Publisher_xml | – name: 江西交通职业技术学院 信息工程学院,南昌 330013%江西交通职业技术学院 路桥工程学院,南昌 330013%中交长江咨询集团有限公司,南昌 330013%江西理工大学 土木与测绘工程学院 (南昌),南昌 330013 |
| SSID | ssib001129506 ssj0039916 ssib053800445 ssib023167364 ssib051373004 ssib002264255 |
| Score | 2.4067993 |
| Snippet | TU311%O327%O329; 为了克服灵敏度方程的病态最小二乘问题,提出一种基于模态柔度变化的结构损伤识别二次反馈岭估计法.采用模态特征值和振型来组集模态柔度矩阵,建立由模态... |
| SourceID | wanfang |
| SourceType | Aggregation Database |
| StartPage | 932 |
| Title | 结构损伤识别的二次反馈岭估计法 |
| URI | https://d.wanfangdata.com.cn/periodical/jxqd202404023 |
| Volume | 46 |
| hasFullText | 1 |
| inHoldings | 1 |
| isFullTextHit | |
| isPrint | |
| journalDatabaseRights | – providerCode: PRVAON databaseName: Directory of Open Access Journals (DOAJ) (Open Access) issn: 1001-9669 databaseCode: DOA dateStart: 20210101 customDbUrl: isFulltext: true dateEnd: 99991231 titleUrlDefault: https://www.doaj.org/ omitProxy: true ssIdentifier: ssj0039916 providerName: Directory of Open Access Journals |
| link | http://utb.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwtV1LaxRBEG5iAqIH8YnPkIN9Cht3el7dx57ZWYKgpwRyC_PUeFjRbEByDpKDwYN48aAExItP9Kb5OdlN_BdWVffuTkyIiehl6O2prvqqqmemurYfjN0sqww-Y7lolGnQbHhpCY9U5noNXLOJf5R5ZouNO3eD2Xnv9oK_MDaxVJu1tNLNZvLVA9eV_I1XoQ78iqtkj-HZIVOogDL4F67gYbgeycc8CXkUceXyJOAq4dLDgmxx1eaJx6OYa6iRXLe5DHjicwnlCFspTcRAA4UYW2kgdoimjRwSxXWA9FATCa5blmHUJIYJEQc8crk5vXIQ4BKSGNkiT0H0PjXUVNDAduBkom1xmZAeba6be-5AGwIEsjWhB1rtjUg8bANaGzwoCPTyQPc9JDFpA-wU2UkhcJucsMkOMUpzkkoOmQ-Y-ijA2AjtqGhWiMZb0iGrwS1JNWApjXcNbDD3CLZCyVpMW7zGbNDeEEUhigHgGphG-5vBE0A-AZeGxB3I4mnXxZiaC_-_4pWErk2OdAjmP8BLEGxvGsBUBvhQFfC0QAGm5wJTpIlsF4YC1hBwqaxgRb1M-tiLTRcGKcc3XYiMjBirqI8QdThUdJogxNTM2E5anbAXA0efzGIeS3kUi-EQbz9OLtRh-GuhBE5WVIE5iGgQa9h0-1I9kUaBg7JZ_tL-kgeGN4EfKopvUAJtnzaDEmbwUaEdm83a_d92kH_w5FGBFPC9Fu4JNiEwdVnLPtHICeJ-vz7hAt7VYrRkXeCGGe4os-I7Lh50MfrtSpwaMsw8uDjspIkm1ggnGR8ocOsw-LR2slOlnXu1MH_uLDtjx-dT2rxsz7Gx1fvn2enarq0XWGPnx4v-67X-xpvtrbe7n5_21t_vvFrb_v6s_2Gz93zj57v13teP21tfdj9t9r-9vMjm28lcPNuwp840lh2cqBs4KYwy3aIIK790s9KRTVlIT6ShrLwKrgqCPFGmFQzOqrBZ5lWZF4USOZ7zhzsNXGLjnYed8jKbCvKmyHKZ5QUMoio3VVVaiCytVBo6TliUV9ikVXbRflWWF_c46-qfCK6xU1g2OeHrbLz7eKW8AaOkbjZJ_v0FTcPvDw |
| linkProvider | Directory of Open Access Journals |
| openUrl | ctx_ver=Z39.88-2004&ctx_enc=info%3Aofi%2Fenc%3AUTF-8&rfr_id=info%3Asid%2Fsummon.serialssolutions.com&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.atitle=%E7%BB%93%E6%9E%84%E6%8D%9F%E4%BC%A4%E8%AF%86%E5%88%AB%E7%9A%84%E4%BA%8C%E6%AC%A1%E5%8F%8D%E9%A6%88%E5%B2%AD%E4%BC%B0%E8%AE%A1%E6%B3%95&rft.jtitle=%E6%9C%BA%E6%A2%B0%E5%BC%BA%E5%BA%A6&rft.au=%E6%9D%8E%E7%BF%A0&rft.au=%E6%9C%B1%E5%AD%A6%E5%9D%A4&rft.au=%E4%BF%9E%E8%AE%B0%E7%94%9F&rft.au=%E4%BC%8D%E6%99%93%E9%A1%BA&rft.date=2024&rft.pub=%E6%B1%9F%E8%A5%BF%E4%BA%A4%E9%80%9A%E8%81%8C%E4%B8%9A%E6%8A%80%E6%9C%AF%E5%AD%A6%E9%99%A2+%E4%BF%A1%E6%81%AF%E5%B7%A5%E7%A8%8B%E5%AD%A6%E9%99%A2%2C%E5%8D%97%E6%98%8C+330013%25%E6%B1%9F%E8%A5%BF%E4%BA%A4%E9%80%9A%E8%81%8C%E4%B8%9A%E6%8A%80%E6%9C%AF%E5%AD%A6%E9%99%A2+%E8%B7%AF%E6%A1%A5%E5%B7%A5%E7%A8%8B%E5%AD%A6%E9%99%A2%2C%E5%8D%97%E6%98%8C+330013%25%E4%B8%AD%E4%BA%A4%E9%95%BF%E6%B1%9F%E5%92%A8%E8%AF%A2%E9%9B%86%E5%9B%A2%E6%9C%89%E9%99%90%E5%85%AC%E5%8F%B8%2C%E5%8D%97%E6%98%8C+330013%25%E6%B1%9F%E8%A5%BF%E7%90%86%E5%B7%A5%E5%A4%A7%E5%AD%A6+%E5%9C%9F%E6%9C%A8%E4%B8%8E%E6%B5%8B%E7%BB%98%E5%B7%A5%E7%A8%8B%E5%AD%A6%E9%99%A2+%28%E5%8D%97%E6%98%8C%29%2C%E5%8D%97%E6%98%8C+330013&rft.issn=1001-9669&rft.volume=46&rft.issue=4&rft.spage=932&rft.epage=938&rft_id=info:doi/10.16579%2Fj.issn.1001.9669.2024.04.023&rft.externalDocID=jxqd202404023 |
| thumbnail_s | http://utb.summon.serialssolutions.com/2.0.0/image/custom?url=http%3A%2F%2Fwww.wanfangdata.com.cn%2Fimages%2FPeriodicalImages%2Fjxqd%2Fjxqd.jpg |