MODELING WORKPIECE DYNAMICS USING SETS OF DECOUPLED OSCILLATOR MODELS

Abstract

During the machining of thin-walled components, the dynamic behavior of the workpiece has a significant influence on the machining process and on the quality of the machined surfaces. In this article, a hybrid simulation concept for modeling regenerative workpiece vibrations is presented, which couples a geometric workpiece model with sets of decoupled harmonic oscillators to take the workpiece dynamics into account.

Keywords:

• chatter
• milling
• simulation
• stability

ACKNOWLEDGMENTS

This work is based on the research project DFG BI 498/5-2 “Entkoppelte Oszillatormodelle als effizientes Ersatzsystem zur Bestimmung von Stabilitätsdiagrammen für die NC-Fräsbearbeitung dünnwandiger Bauteile”, which is kindly funded by the German Research Foundation (DFG).