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

Figure 9

PSE and the curvature curves of noise-free structure: (a) PSE curves of beam 1, (b) PSE curves of beam 2, (c) PSE curvature of beam 1 using the maximum PSEs at the first resonance frequency, and (d) PSE curvature of beam 2 using the maximum PSEs at the first resonance frequency.

(a)

(b)

(c)

(d)