Abstract: The omen identification of
machining chatter and corresponding control strategy are
discussed emphatically in this paper. It is confirmed that there
are essential connections between the cutting stability and
identification parameter θ of chattering omen. When the cutting
process is transiting from stable state to an unstable state, we
may predict the chattering according to the variation of
identification parameter θ. When the value of θ exceeds its
giving control threshold θlim, a control signal will be sent to
the vari-speed control system immediately from the chatter
prediction system. A special strategy of learning vari-speed is
proposed to control the machining chatter, it has good effect on
suppressing chatter.
Key words:
Omen identification Machining
chatter Learning vari-speed control
Manuscript received on September 24, 1990; revised manuscript
September 27, 1991
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