24/10/2026
Orbit analysis is a powerful diagnostic tool that assesses rotor stability and overall dynamic health, revealing bearing preload, eccentricity ratio (EC), clearance use, critical speeds, unbalance, misalignment, rubs, looseness, oil whirl, oil whip, and the interactions among rotor mass, bearing stiffness, damping, fluid-film forces, and external excitation. Included orbit plots:
Balanced Rotor (Circular);Unbalance (Elliptical);Misalignment (Inclined Ellipse);Harmonics / Figure-8;Mechanical Looseness;Inadequate Preload (Crescent);Adequate Preload;High Preload;Very High Preload;Excessive Preload;Rotor Rub (Clipped Orbit);Oil Whip (Large Subsynchronous Orbit)
