Vibration-Based Approach for Structural Damage Detection

Proceedings of the 23rd International Congress on Sound and Vibration 2016 (ICSV 23): From Ancient to Modern Acoustics 2016
Sandris Ručevskis, Rims Janeliukštis, Pāvels Akišins, Andris Čate

In this paper, a mode shape curvature based method for detection and localization of damage in beam-like and plate-like structures is described. The proposed method requires only the mode shape curvature data of the damaged structure. The damage index is defined as the absolute difference between the measured curvature of the damaged structure and the smoothed polynomial representing the curvature of the healthy structure. To examine the advantages and limitations of the proposed method, several sets of numerical simulations are carried out. Simulated test cases considering different levels of damage severity, measurement noise and sensor sparsity are studied to evaluate the robustness of the method under the noisy experimental data and limited sensor data. The modal frequencies and the corresponding mode shapes are obtained via finite element models for numerical simulations.

Atslēgas vārdi
damage detection; modal analysis; plate; mode shape curvature; structural health monitoring
Hipersaite
http://www.iiav.org/archives_icsv_last/2016_icsv23/content/papers/papers/full_paper_980_20160225092944585.pdf

Ručevskis, S., Janeliukštis, R., Akišins, P., Čate, A. Vibration-Based Approach for Structural Damage Detection. No: Proceedings of the 23rd International Congress on Sound and Vibration 2016 (ICSV 23): From Ancient to Modern Acoustics, Grieķija, Athens, 10.-14. jūlijs, 2016. [S.l.]: International Institute of Acoustics and Vibration (IIAV), 2016, 3438.-3445.lpp. ISBN 978-960-99226-2-3. ISSN 2329-3675.

Publikācijas valoda
English (en)