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Nondestructive damage detection technique is essential to ensure safety, reliability and operational life. But the large amount data and complex information can lead to wrong judgment. A kind of multi-information fusion method was applied in damage detection system based on Dempster-Shafer evidence theory. The constructed integrated parameter performed well in the sensitivity and reliability compared...
Damage-induced changes in natural frequencies, damping ratios and mode shapes can be detected using Experimental modal analysis (EMA). And it uses differences of measured modal properties from baseline or nominal values to identify the location and severity of damage. But the large amount data and complex information can lead to wrong judgment. A kind of multi-information fusion method was applied...
Venanico-Filho et al. developed an elegant matrix formulation for dynamic analysis by frequency domain (FD), but the convergence, causality and extended period need further refining. In the present paper, it was argued that: (1) under reasonable assumptions (approximating the frequency response function by the discrete Fourier transform of the discretized unitary impulse response function), the matrix...
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