On the Suppression of Self-excited Vibration by Servodamper

抄録

This paper deals with a technique to suppress the self-excited chatter vibration in machine tools by servodamper method proposed by the authors in the previous papers. Firstly, it is shown that the servodamper designed by applying an output feedback control theory is capable of increasing stability in cutting process against the occurrence of the chatter. Secondly, from a viewpoint of model cutting experiment, the capability of the servodamper to eliminate the chatter is presented. Thirdly, by installing the servodamper in a large-scale vertical lathe which has been required a countermeasure for the chatter occurring frequently, this paper shows the results of a cutting experiment in which a servodamper proves to be effective for eliminating the chatter under various cutting conditions.