000009899 001__ 9899
000009899 005__ 20141205153205.0
000009899 04107 $$aeng
000009899 046__ $$k2008-10-12
000009899 100__ $$aDong, Yinfeng
000009899 24500 $$aA Combination of EMD and VARMA Model for Structural Damage Detection

000009899 24630 $$n14.$$pProceedings of the 14th World Conference on Earthquake Engineering
000009899 260__ $$b
000009899 506__ $$arestricted
000009899 520__ $$2eng$$aA method combining the empirical mode decomposition (EMD) and vector autoregressive moving average (VARMA) model is proposed to detect the damage of structures. First, the EMD method is used to decompose the dynamic response of structures into a set of intrinsic mode functions (IMFs). Then, these IMFs are represented as a time varying VARMA model and Kalman filter is used to estimate the corresponding time varying VARMA coefficients. Finally, a novel index, derived from the time varying VARMA parameters, is proposed to identifying the damage of structures. The acceleration response recorded at a 6-story reinforced concrete building, the Imperial County Services Building, during the 1979 Imperial Valley earthquake, is analyzed to demonstrate the efficiency of the proposed method. It is found that the proposed method can precisely indicate the damage and changes of dynamic properties of structures, which is expected as the promising area for future research.

000009899 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000009899 653__ $$adamage detection, dynamic response, EMD, VARMA model

000009899 7112_ $$a14th World Conference on Earthquake Engineering$$cBejing (CN)$$d2008-10-12 / 2008-10-17$$gWCEE15
000009899 720__ $$aDong, Yinfeng$$iLi, Yingmin
000009899 8560_ $$ffischerc@itam.cas.cz
000009899 8564_ $$s771912$$uhttps://invenio.itam.cas.cz/record/9899/files/14-0196.pdf$$yOriginal version of the author's contribution as presented on CD, Paper ID: 14-0196.
000009899 962__ $$r9324
000009899 980__ $$aPAPER