Checked 23 October 2026 (UTC). Sources provide the physical concepts and educational context. The implementation, diagrams and parameter presets are original.
- Penn State Mechanics Map: Undamped Harmonic Forced Vibrations / Rotating Unbalance: explains the rotating-force origin of unbalance. The present implementation adds viscous damping and explicitly derives the variable-speed tangential term.
- NASA rotor balance and vibration report, 20230003228: section2.2 distinguishes unbalance, eccentricity and rotor mass; the report also discusses vibration modes. No test values or acceptance limits are transplanted into this teaching rotor.
- NASA: Design Implications of Rotordynamics and Mass Balancing on a 1.4 MW Partially Superconducting Machine: establishes the engineering connection among balancing, bearing/mount stiffness, deflection and critical speeds in aircraft propulsion machinery.
- NASA: Monitoring techniques for the X-29A aircraft's high-speed rotating power takeoff shaft: a further-reading example of shaft vibration monitoring. The browser experiment does not reproduce its aircraft or procedures.
All default values and A/B presets are generic teaching assumptions. The source documents support the mechanisms; they do not experimentally validate this implementation. No manufacturer model, image, maintenance acceptance criterion or aircraft-specific vibration spectrum is distributed.