A Combined Modal Correlation Criterion for Structural Damage Identification with Noisy Modal Data

Figure 10

Frame example: first four eigenmodes of the undamaged structure. (a) Eigenmode 1 (T₁ = 0.128 s), (b) eigenmode 2 (T₂ = 0.053 s), (c) eigenmode 3 (T₃ = 0.021 s), and (d) eigenmode 4 (T₄ = 0.019 s).

(a)

(b)

(c)

(d)