Spectrum Analysis of a Coaxial Dual-Rotor System with Coupling Misalignment

Figure 29

Orbits of bearings with misalignment (Δ = 0.2 mm, Ω₁ = 21.6 Hz, Ω₂ = 34.6 Hz): (a) bearing 1 and (b) bearing 4.

(a)

(b)