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

Figure 15

Torsional vibration response and torsional natural frequency: (a) 2nd through 6th harmonic, (b) 3rd, 4th, 7th, 8th, 9th, and 12th harmonic, and (c) 7th, 9th, 11th, and 12th harmonic.

(a)

(b)

(c)