Volume 12, Number 2 and A (Transaction A: Civil Engineering, June 2014)                   IJCE 2014, 12(2 and A): 193-200 | Back to browse issues page


XML Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Kaveh A, Maniat M. Damage detection in skeletal structures based on charged system search optimization using incomplete modal data. IJCE. 2014; 12 (2) :193-200
URL: http://ijce.iust.ac.ir/article-1-980-en.html

Abstract:   (2212 Views)
It is well known that damaged structural members may alter the behaviour of the structures considerably. Careful observation of these changes has often been viewed as a means to identify and assess the location and severity of damages in structures. Among the responses of a structure, natural frequencies and natural modes are both relatively easy to obtain and independent from external excitation, and therefore, can be used as a measure of the structural behaviour before and after an extreme event which might have led to damage in the structure. This paper applies Charged System Search algorithm to the problem of damage detection using vibration data. The objective is to identify the location and extent of multi-damage in a structure. Both natural frequencies and mode shapes are used to form the required objective function. To moderate the effect of noise on measured data, a penalty approach is applied. Varity of numerical examples including beams, frames and trusses are examined. The results show that the present methodology can reliably identify damage scenarios using noisy measurements and incomplete data.
Full-Text [PDF 272 kb]   (1079 Downloads)    
Type of Study: Research Paper | Subject: Structure-Steel

Add your comments about this article : Your username or email:
Write the security code in the box

© 2015 All Rights Reserved | International Journal of Civil Engineering

Designed & Developed by : Yektaweb