Numerikus- és környezetszimuláció marógépek rezgéscsökkentésére szerszámél-geometria
és mechanika...(KKP-133846) Támogató: NKFI
(KP2020-NKA-16) Támogató: NKFIH
Szakterületek:
Műszaki és technológiai tudományok
A stochastic dynamical model is presented to identify the difficulties in chatter
detection during cutting processes. The theoretical implications are based on measurements
related to the stochastic character of the cutting force. The stochastic model is
validated in a Hardware-In-the-Loop (HIL) environment where the multiplicative component
of the stochastic cutting force is varied parametrically. In case of an industrial
machine tool, the stochastic resonance effect is also demonstrated quantitatively
by means of high-resolution vibration measurements for various spindle speeds in full
immersion milling. The proposed method predicts the noise induced peaks in the spectrum
of the vibration signals, which occur already within the chatter-free parameter domains
and might be misjudged as chatter.
