Devices that have a resonance
point that changes due to
individual differences and age
deterioration
Devices that have a resonance
point with a frequency that does
not change
Instantaneous Suppression
Tracking the Resonance Point
Torque
command
Automatic frequency
tracking
Width
Adaptive filter
Notch filter
Toque filter
Cut-off frequency
Suppression of Large Resonance
Point with a Frequency that Does
not Change
Lowering All Resonance Peaks
in a High Frequency Range
Torque command
after filter
f f
-3dB
Notch Filter Characteristics
Gain
Gain
Notch Filter Characteristics
Gain
Gain Gain
Machine characteristics at resonance
Machine characteristics at resonance
Anti-resonance
Resonance
Anti-resonance
Anti-resonance
Frequency
Frequency
Frequency
Frequency
Frequency
Frequency
Frequency
Frequency
Frequency
Fre-
quency
Adjust a bit lower (approx. 0.9 f).
Notch
Torque command filter characteristics
Torque Command Filter
No more
resonance
peak
Cut-off frequency
Resonance
peak falls.
Examples of applicable devices
Speed response
Devices that have a resonance
peak in a frequency range
separated from the speed
response
-3dB
To Next Page
Loading...
Need help?
General
