Structural Damage Detection by Power Spectral Density Estimation Using Output-Only Measurement

Figure 5

PSE curve and its curvature under the condition of Fr = 0.5 Hz: (a) PSE curve (rectangular window, 50% overlap) by maximum PSE values around 36 Hz/sample, (b) PSE curvature (rectangular window), (c) PSE curvature (Hamming window), (d) PSE curvature (Bartlett window), (e) PSE curvature (Hann window), and (f) PSE curvature (Blackman window).

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