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
  • [31] Damage detection in a suspension bridge using modal flexibility method
    Wickramasinghe, Wasanthi R.
    Thambiratnam, David P.
    Chan, Tommy H. T.
    ENGINEERING FAILURE ANALYSIS, 2020, 107 (107)
  • [32] A new method for structural damage detection and localization based on modal shapes
    Duvnjak, I.
    Rak, M.
    Damjanovic, D.
    LIFE-CYCLE OF ENGINEERING SYSTEMS: EMPHASIS ON SUSTAINABLE CIVIL INFRASTRUCTURE, 2017, : 224 - 231
  • [33] Structural damage detection method based on incomplete modal information study
    Liu, H
    Qu, WL
    PROCEEDINGS OF THE EIGHTH INTERNATIONAL SYMPOSIUM ON STRUCTURAL ENGINEERING FOR YOUNG EXPERTS, VOLS 1 AND 2, 2004, : 389 - 395
  • [34] Structural damage detection based on modal data moth-flame
    Dehcheshmeh, Mohamad Mohamadi
    Amiri, Gholamreza Ghodrati
    Hosseinzadeh, Ali Zare
    Torbatinejad, Vahid
    PROCEEDINGS OF THE INSTITUTION OF CIVIL ENGINEERS-STRUCTURES AND BUILDINGS, 2022, 175 (02) : 79 - 93
  • [35] Structural damage identification using an optimization technique based on generalized flexibility matrix
    Gao, Qianhui
    Li, Zhu
    Yu, Yongping
    Zheng, Shaopeng
    JOURNAL OF MECHANICS, 2024, 40 : 10 - 17
  • [36] Structural Damage Identification Based on Support Vector Machine and Relative Change Value of Modal Flexibility
    Fan, Xiao-chun
    Yan-Yang
    Liu, Tian-yi
    2008 INTERNATIONAL WORKSHOP ON EDUCATION TECHNOLOGY AND TRAINING AND 2008 INTERNATIONAL WORKSHOP ON GEOSCIENCE AND REMOTE SENSING, VOL 2, PROCEEDINGS,, 2009, : 789 - 793
  • [37] Method of modal expansion for structural damage detection
    Liu, Hui
    Qu, Wei-Lian
    Yuan, Run-Zhang
    Wuhan Ligong Daxue Xuebao/Journal of Wuhan University of Technology, 2004, 26 (08):
  • [38] STUDY OF STRUCTURAL DAMAGE IDENTIFICATION BASED ON THE PROPORTIONAL FLEXIBILITY MATRIX AND IMPROVED MODAL CURVATURE METHOD
    Zhao, Zhongyue
    Han, Jiangang
    PROCEEDINGS OF THE THIRTEENTH INTERNATIONAL SYMPOSIUM ON STRUCTURAL ENGINEERING, VOLS 1 AND II, 2014, : 1761 - 1767
  • [39] Structural damage detection using modal norms
    Gawronski, W
    Sawicki, JT
    JOURNAL OF SOUND AND VIBRATION, 2000, 229 (01) : 194 - 198
  • [40] STRUCTURAL DAMAGE DETECTION BASED ON AN IMPROVED EDGE-DETECTION TECHNIQUE
    Chen, Peng
    Hu, Guangda
    Nazarian, Soheil
    Yan, Guirong
    PROCEEDINGS OF THE ASME CONFERENCE ON SMART MATERIALS ADAPTIVE STRUCTURES AND INTELLIGENT SYSTEMS - 2013, VOL 2, 2014,
12345