A New Criterion for the Stabilization Diagram Used with Stochastic Subspace Identification Methods: An Application to an Aircraft Skeleton

Table 1

The identified frequencies and damping using several algorithms.

Modes	Frequencies: 𝑓 (Hz)			Damping: 𝜉 (%)			BR/UPC (%)		BR/CVA (%)
	BR	CVA	UPC	BR	CVA	UPC	𝑓	𝜉	𝑓	𝜉
1	3.71	3.69	***	4.90	6.57	***	***	***	0.54	34.08
2	6.13	6.18	***	3.60	3.17	***	***	***	0.82	11.94
3	16.06	16.02	16.07	4.05	4.07	3.94	0.06	2.54	0.25	0.49
4	21.71	21.77	***	5.73	5.40	***	***	***	0.28	5.76
5	39.87	39.87	39.86	0.38	0.38	0.40	0.02	5.26	0.00	0.00
6	44.33	44.34	44.37	0.03	0.02	0.06	0.09	106.66	0.02	33.33
7	54.35	54.36	54.37	0.11	0.10	0.09	0.03	16.36	0.02	9.09
8	55.42	55.42	55.39	0.22	0.20	0.31	0.05	40.90	0.00	9.09
9	58.44	58.47	58.49	0.38	0.39	0.47	0.08	23.68	0.05	2.63
10	***	***	63.83	***	***	3.93	***	***	***	***
11	69.41	69.37	69.42	1.12	1.18	1.25	0.01	11.60	0.06	5.36
12	80.06	80.15	79.8	0.09	0.09	0.72	0.32	700	0.11	0.00
13	***	***	86.18	***	***	3.00	***	***	***	***
14	100.25	100.3	100.3	0.11	0.11	0.12	0.04	9.09	0.05	0.00
15	***	***	107.6	***	***	4.51	***	***	***	***
16	***	***	114.5	***	***	1.63	***	***	***	***

***Unidentified mode.