File(s) under permanent embargo

Damage identification of civil infrastructure in the time domain using FEM calibrated ARMAX model

conference contribution
posted on 2011-01-01, 00:00 authored by Ying Wang, Sui Yang KhooSui Yang Khoo, An-Jui Li
Due to environmental loads, mechanical damages, structural aging and human factors, civil infrastructure inevitably deteriorate during their service lives. Since their damage may claim human lives and cause significant economic losses, how to identify damages and assess structural conditions timely and accurately has drawn increasingly more attentions from structural engineering community worldwide. In this study, a fast and sensitive time domain damage identification method will be developed. First, a high quality finite element model is built and the structural responses are simulated under different damage scenarios. Based on the simulated data, an Auto Regressive Moving Average Exogenous (ARMAX) model is then developed and calibrated. The calibrated ARMAX model can be used to identify damage in different scenarios through model updating process using clonal selection algorithm (CSA). The identification results demonstrate the performance of the proposed methodology, which has the potential to be used for damage identification in practices.



Asia Pacific Vibration Conference (14th : 2011 : Hong Kong, China)


203 - 212


Hong Kong Polytechnic University


Hong Kong, China

Place of publication

[Hong Kong, China]

Start date


End date






Publication classification

E1 Full written paper - refereed

Copyright notice

2011, Hong Kong Polytechnic University

Title of proceedings

APVC 2011 : Proceedings of the14th Asia Pacific Vibration Conference