Engineering Transactions, 54, 3, pp. 189–202, 2006

Self-Excited Vibrations Counteraction in Machine Tool — Cutting Process System Using Controllable Eliminator of Vibration

Marcin Chodźko
Technical University of Szczecin
Poland

Krzysztof Marchelek
Technical University of Szczecin
Poland

Arkadiusz Parus
Technical University of Szczecin
Poland

In the paper, the results of simulation investigations on the application of a semi-active vibration eliminator for suppression of machining chatter are presented. First, the idea of a semi-active vibration eliminator arranged in the "machine tool – cutting process" system (MT–CP) is presented. Next, the results of the identification process of parameters of this system are shown. Properties of the mass-damping-spring system of the machine tool were estimated during the modal testing. A mechanistic model of the cutting process was built on the basis of results of cutting tests. Two control algorithms have been tested: one with the time-invariant model of disturbances (MD) and another with the adaptive model of disturbances. Estimation of the eliminator effectiveness in the suppression of self-excited vibrations in a MT–CP system is also included.
Keywords: vibrostability; semi-active eliminator of vibration
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