Structural damage alarming by novelty detection technique based on modal flexibility

被引：0
|
作者：
Sun, ZG [1 ]
机构：
[1] Dalian Maritime Univ, Dalian, Liaoning, Peoples R China
来源：
PROCEEDINGS OF THE FIFTEENTH (2005) INTERNATIONAL OFFSHORE AND POLAR ENGINEERING CONFERENCE, VOL 4 | 2005年
关键词：
damage alarming; neural network; novelty detection; modal flexibility;
D O I：
暂无
中图分类号：
U6 [水路运输]; P75 [海洋工程];
学科分类号：
0814 ; 081505 ; 0824 ; 082401 ;
摘要：
Structural damage alarming is explored by using novelty detection technique. Based on the changes of modal flexibilities, a novelty index to alarm damage is generated by a feed-forward BP neural network. A total of 12 potential damage cases in a cable-stayed bridge are simulated. Modal flexibilities are evaluated using noisy 'measured' modal parameters. The results show that the novelty index based on flexibility has a high sensitivity to damage and a good tolerance to the noise. In this technique, no structural model is needed. Only a few of low-order modal parameters at several locations are to be measured.
引用
收藏
页码：419 / 423
页数：5
相关论文
共 50 条
  • [41] A multi-stage approach for damage detection in structural systems based on flexibility
    Grande, E.
    Imbimbo, M.
    MECHANICAL SYSTEMS AND SIGNAL PROCESSING, 2016, 76-77 : 455 - 475
  • [42] Structural Damage Detection Based on Static and Dynamic Flexibility: A Review and Comparative Study
    Peng, Xi
    Yang, Qiuwei
    Qin, Fengjiang
    Sun, Binxiang
    COATINGS, 2024, 14 (01)
  • [43] A modified teaching–learning optimization algorithm for structural damage detection using a novel damage index based on modal flexibility and strain energy under environmental variations
    Behrouz Ahmadi-Nedushan
    Hamed Fathnejat
    Engineering with Computers, 2022, 38 : 847 - 874
  • [44] Damage detection of wood beams using the differences in local modal flexibility
    Chuanshuang Hu
    Min Xiao
    Haibin Zhou
    Wei Wen
    Hong Yun
    Journal of Wood Science, 2011, 57 : 479 - 483
  • [45] Damage detection of wood beams using the differences in local modal flexibility
    Hu, Chuanshuang
    Xiao, Min
    Zhou, Haibin
    Wen, Wei
    Yun, Hong
    JOURNAL OF WOOD SCIENCE, 2011, 57 (06) : 479 - 483
  • [46] Damage detection of shear buildings using deflections obtained by modal flexibility
    Koo, K. Y.
    Sung, S. H.
    Park, J. W.
    Jung, H. J.
    SMART MATERIALS AND STRUCTURES, 2010, 19 (11)
  • [47] Structural damage detection method based on information fusion technique
    School of Civil Engineering, Southeast University, Nanjing 210096, China
    J. Southeast Univ. Engl. Ed., 2008, 2 (201-205):
  • [48] Development in vibration-based structural damage detection technique
    Yan, Y. J.
    Cheng, L.
    Wu, Z. Y.
    Yam, L. H.
    MECHANICAL SYSTEMS AND SIGNAL PROCESSING, 2007, 21 (05) : 2198 - 2211
  • [49] Machine learning based novelty detection using modal analysis
    Ozdagli, Ali I.
    Koutsoukos, Xenofon
    COMPUTER-AIDED CIVIL AND INFRASTRUCTURE ENGINEERING, 2019, 34 (12) : 1119 - 1140
  • [50] Efficient Cultural Algorithm for Structural Damage Detection Problem Based on Modal Data
    Ben Guedria, Najeh
    Hassine, Hichem
    ADVANCES IN ACOUSTICS AND VIBRATION II (ICAV2018), 2019, 13 : 204 - 217
12345