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

Figure 30

Orbits of bearing 1 at different misalignment (Ω₁ = 11.6 Hz, Ω₂ = 18.6 Hz): (a) Δ = 0.2 mm and (b) Δ = 0.4 mm.

(a)

(b)