Modal Parameter Identification Based on Hilbert Vibration Decomposition in Vibration Stability of Bridge Structures

Table 1

Identification results for various damping ratios.

ξ1 = ξ2	f1	f2	ξ1	ξ2
0.01	3.50	4.00	0.010	0.010
0.02	3.50	4.00	0.020	0.020
0.04	3.50	4.00	0.010	0.010
0.06	3.50	3.91	0.061	0.063
0.08	3.56	3.76	0.082	0.074

Note. ξ₁ and ξ₂ are the modal damping and f₁ and f₂ are the modal frequency.