Turbomachinery Rotordynamics: Fundamentals, Analysis, and Case Studies
: Every rotor has natural frequencies. When the rotational speed matches these frequencies, resonance occurs, leading to high vibration amplitudes.
: Self-excited vibrations like oil whirl and oil whip in fluid-film bearings can cause vibrations to grow until they reach destructive levels. 2. Advanced Computational Methods
: As rotors spin faster, gyroscopic forces can stiffen or de-stiffen the system, shifting critical speeds and causing "whirl modes" (forward and backward precession).
Turbomachinery Rotordynamics: Fundamentals, Analysis, and Case Studies
: Every rotor has natural frequencies. When the rotational speed matches these frequencies, resonance occurs, leading to high vibration amplitudes.
: Self-excited vibrations like oil whirl and oil whip in fluid-film bearings can cause vibrations to grow until they reach destructive levels. 2. Advanced Computational Methods
: As rotors spin faster, gyroscopic forces can stiffen or de-stiffen the system, shifting critical speeds and causing "whirl modes" (forward and backward precession).
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