Method and apparatus for damping a chatter vibration exceeds occurring in the case of a machine tool

摘要

A method for damping a chatter vibration exceeds occurring in the case of a machine tool with at least one feed system, comprising a converter-fed permanently excited synchronous - linear motor (40), by means of a field-oriented control system (10) is controlled, with the following process steps:a) generating a proportional to the occurring chatter vibration exceeds is - signal (s_Rs),b) determining a correcting variable (s_rsy) as a function of this is - signal (s_Rs) and a predetermined desired value (s^*_Rs) for a chatter vibration exceeds occurring, andc) application of these determined manipulated variable (s_rsy) as a reference value for the flux-inducing current component (i^*_d) a subordinated current regulation (16) of the field-oriented control system (10) of the permanently excited synchronous - linear motor (40).