DAMAGE DETECTION BASED ON OPTIMIZED INCOMPLETE MODE SHAPE AND FREQUENCY

被引：0
作者：
Wei Chen [1 ]
Wenguang Zhao [1 ]
Huizhen Yang [1 ]
Xuquan Chen [1 ]
机构：
[1] Hubei Key Laboratory of Control Structure, Huazhong University of Science and Technology
来源：
ActaMechanicaSolidaSinica | 2015年 / 28卷 / 01期
关键词：
structural damage detection; optimum sensor placement; sensitivity analysis; information matrix;
D O I：
暂无
中图分类号：
TP212 [发送器（变换器）、传感器]; TP274 [数据处理、数据处理系统];
学科分类号：
080202 ; 0804 ; 080401 ; 080402 ; 081002 ; 0835 ;
摘要：
For the purpose of structural health monitoring, a damage detection method combined with optimum sensor placement is proposed in this paper. The back sequential sensor placement(BSSP) algorithm is introduced to optimize the sensor locations with the aim of maximizing the 2-norm of information matrix, since the EI method is not suitable for optimum sensor placement based on eigenvector sensitivity analysis. Structural damage detection is carried out based on the respective advantages of mode shape and frequency. The optimized incomplete mode shapes yielded from the optimal sensor locations are used to localize structural damage. After the potential damage elements have been preliminarily identified, an iteration scheme is adopted to estimate the damage extent of the potential damage elements based on the changes in the frequency. The effectiveness of this method is demonstrated using a numerical example of a 31-bar truss structure.
引用
收藏
页码：74 / 82
页数：9
相关论文
共 11 条
  • [1] Damage detection method for shear buildings using the changes in the first mode shape slopes[J] . Hongping Zhu,Lin Li,Xiao-Qiao He.Computers and Structures . 2011 (9)
  • [2] Power mode shapes for early damage detection in linear structures[J] . Sheng-En Fang,Ricardo Perera.Journal of Sound and Vibration . 2009 (1)
  • [3] The connection between effective independence and modal kinetic energy methods for sensor placement[J] . D.S. Li,H.N. Li,C.P. Fritzen.Journal of Sound and Vibration . 2007 (4)
  • [4] Structural damage identification based on residual force vector[J] . Q.W. Yang,J.K. Liu.Journal of Sound and Vibration . 2007 (1)
  • [5] Determination of damage location in RC beams using mode shape derivatives
    Ismail, Z.
    Razak, H. Abdul
    Rahman, A. G. Abdul
    [J]. ENGINEERING STRUCTURES, 2006, 28 (11) : 1566 - 1573
  • [6] A new structural damage identification method[J] . J.K. Liu,Q.W. Yang.Journal of Sound and Vibration . 2006 (3)
  • [7] Identification of delamination in composite beams by genetic algorithm
    Krawczuk, M
    Ostachowicz, W
    [J]. SCIENCE AND ENGINEERING OF COMPOSITE MATERIALS, 2002, 10 (02): : 147 - 155
  • [8] Structural damage detection from modal strain energy change
    Shi, ZY
    Law, SS
    Zhang, LM
    [J]. JOURNAL OF ENGINEERING MECHANICS-ASCE, 2000, 126 (12): : 1216 - 1223
  • [9] An experimental study for damage detection using a hexagonal truss[J] . Hyoung M. Kim,Theodore J. Bartkowicz.Computers and Structures . 2000 (2)
  • [10] Structural Damage Detection from Incomplete and Noisy Modal Test Data[J] . S. S. Law,Z. Y. Shi,L. M. Zhang.Journal of Engineering Mechanics . 1998 (11)
12