Complete Inverse Method Using Ant Colony Optimization Algorithm for Structural Parameters and Excitation Identification from Output Only Measurements

Figure 7

Parameter identification convergence procedure for Segments 11.0–11.33 sec in Table 5(b).

(a) Stiffness 𝑘₃

(b) Stiffness 𝑘₂

(c) Stiffness 𝑘₁