Lateral-Torsional Coupling Characteristics of a Two-Stage Planetary Gear Rotor System

Table 3

Natural frequencies of the two-stage planetary gear rotor system.

Mode No.	Freq. (Hz)
1	0
2	56.6
3	83.7
4	83.7
5	151.2
6	248.5
7	298.9
8	298.9
9	344.9
10	344.9
11	369.9
12	370.0
13	404.1
14	404.2
15	439.3
16	526.0
17	526.0
18	555.5
19	555.8
20	616.1
21	616.1
22	702.1
23	765.7
24	765.8
25	786.1
26	802.9
27	839.7
28	839.7
29	999.3
30	1001.1
31	1035.6
32	1036.9
33	1060.2
34	1213.9
35	1213.9
36	1218.7
37	1299.9
38	1301.5
39	1332.2
40	1354.6
41	1372.1
42	1372.1
43	1600.4
44	1600.4
45	1722.5
46	1728.2
47	1836.5
48	1871.3
49	1901.7
50	1903.9
51	1968.6
52	1969.5
53	2018.5
54	2019.2
55	2173.0
56	2297.2
57	2299.6
58	2394.0
59	2406.3
60	2656.1
61	2814.5
62	2889.1
63	2923.7
64	2979.6
65	3033.1
66	3033.1
67	3042.8
68	3044.1
69	3650.1
70	3650.4
71	3731.7
72	3732.1