Noise Reduction for Modal Parameter Identification of the Measured FRFs Using the Modal Peak-Based Hankel-SVD Method

Table 4

The extracted modal parameters.

Mode	Modal frequency (Hz) (Point 1)	Modal frequency (Hz) (Point 40)	Frequency difference (Hz)	Damping factor (Point 1)	Damping factor (Point 40)	Damping factor difference (%)
1	64.63889	64.58773	0.05116	0.001152	0.001335	15.87176
2	392.3132	393.5316	1.2184	0.00645	0.005472	15.16743
3	459.1516	459.0252	0.1264	0.000667	0.000651	2.477419
4	1015.351	—	—	0.00753	—	—
5	1125.492	1126.48	0.988	0.00459	0.007716	68.11871
6	1147.168	1148.179	1.011	0.003201	0.00217	32.22889
7	1252.44	—	—	0.005597	—	—
8	1419.851	1419.687	0.164	0.000415	0.000545	31.51598
9	2175.132	—	—	0.002125	—	—
10	2524.38	2523.689	0.691	0.000578	0.000676	16.9878