Experimental Research on Structural Damage Alarming of Benchmark Structure Based on Empirical Mode Decomposition
A structural damage alarming method is proposed using empirical mode decomposition. The basic idea of this method is that with respect to the intact model and damaged models, the energy redistribution of the intrinsic mode functions decomposed from the structural response can represent the variation of the structural dynamic characteristics caused by the structural damage. By taking the Benchmark test model as the research object, the structural dynamic responses from the hammer-impact tests are collected then the damage alarming parameters and the damage alarming indices are evaluated. The experimental results reveal that the structural damage alarming indices based on empirical mode decomposition is able to effectively detect the structural initial damage with preferable damage alarming capacity.
Chaohe Chen, Yong Huang and Guangfan Li
L. L. Cao et al., "Experimental Research on Structural Damage Alarming of Benchmark Structure Based on Empirical Mode Decomposition", Advanced Materials Research, Vols. 243-249, pp. 61-66, 2011