Research Article
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 |
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