IJAT Vol.4 No.3 pp. 259-267
doi: 10.20965/ijat.2010.p0259


Analytical Prediction of Part Dynamics for Machining Stability Analysis

Salih Alan*, Erhan Budak**, and H. Nevzat Özgüven*

*Department of Mechanical Engineering, Middle East Technical University, 06531 Ankara, Turkey

**Faculty of Engineering and Natural Sciences, Sabanci University, Orhanli, Tuzla, 34956 Istanbul, Turkey

December 18, 2009
January 21, 2010
May 5, 2010
chatter stability, part dynamics, structural modification
An analytical procedure is developed to predict workpiece dynamics in a complete machining cycle in order to obtain frequency response functions (FRF), which are needed in chatter stability analyses. For this purpose, a structural modification method that is an efficient tool for updating FRFs is used. The mass removed by machining is considered to be a structural modification in order to determine the FRFs at different stages of the process. The method is implemented in a computer code and demonstrated on different geometries. The predictions are compared and verified by FEA. Predicted FRFs are used in chatter stability analyses, and the effect of part dynamics on stability is studied. Different cutting strategies are compared for increased chatter-free material removal rates considering part dynamics.
Cite this article as:
S. Alan, E. Budak, and H. Özgüven, “Analytical Prediction of Part Dynamics for Machining Stability Analysis,” Int. J. Automation Technol., Vol.4 No.3, pp. 259-267, 2010.
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