Chapter 4 Running
54
The principle of resonance suppression is to use filter to suppress the resonance peak of
mechanical response. The schematic diagram is as follows:
Two kinds of filter characteristics are:
Filter type Suitable case Advantage Disadvantage
Low pass
filter
High frequency
resonance
Do not need to
know the exact
resonance
frequency
Bring phase delay; reduce bandwidth
of the system. Do not suitable for the
case of medium and low frequency
resonance.
Notch filters
medium and
low frequency
resonance
Do not affect the
bandwidth of the
system.
It is important to know the exact
resonance frequency. If make
mistake of frequency setting, will
affect the performance. It is not
suitable that if the resonance
frequency drifts all the time.
To Next Page
Loading...