LIST OF SICKNESS
classical resonance (my own term) , Helmholtz resonance
imbalance
misalignment (angular / parallel)
cocked bearing
bent shaft
mechanical looseness, soft foot
suction cavitation @ classical cavitation
discharge cavitation @ internal re-circulation cavitation
fluid film bearing wear , oil whip instability , oil whirl instability , dry whip
gear mesh frequency (GMF)
vane pass frequency (VPF) @ blade pass frequency (BPF)
ball pass frequency outer (BPFO)
ball pass frequency inner (BPFI)
ball spin frequency (BSF)
fundamental train frequency (FTF)
broken rotor bar
surge
stall

TERMS
natural frequency , critical speed
time domain , frequency domain , spectrum , cepstrum
harmonics
FFT , Laplace Transform , bode-plot , orbit plot , polar plot , nyquist plot , root-locus plot
bandwith
mode shape
kinematic relationship
synchronous, sub-synchronous , non-synchronous
rotordynamics
vibration white finger (VWF)
uniform , hanning , flat top
eddy probe @ proximity probe, accelerometer

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