Structural Health Monitoring Based on Combined Structural Global and Local Frequencies

Figure 5

The relative sensitivities of the excited frequencies in 6 cases of adding mass.

(a) m = 0.00 kg

(b) m = 0.15 kg

(c) m = 0.40 kg

(d) m = 0.55 kg

(e) m = 0.80 kg

(f) m = 1.30 kg