Title: Advanced calculation of static and dynamic stiffness in mechatronic machine tools

Authors: Reimund Neugebauer, Christian Scheffler, Markus Wabner, Carsten Zwingenberger

Addresses: Fraunhofer Institute for Machine Tools and Forming Technology IWU, Reichenhainer Strasse 88, Chemnitz, 09126, Germany. ' University of Chemnitz, Strasse der Nationen 62, 09127 Chemnitz, Germany. ' Fraunhofer Institute for Machine Tools and Forming Technology IWU, Reichenhainer Strasse 88, Chemnitz, 09126, Germany. ' Fraunhofer Institute for Machine Tools and Forming Technology IWU, Reichenhainer Strasse 88, Chemnitz, 09126, Germany

Abstract: Static and dynamic stiffness are essential in machine tool design. Especially for electro-mechanic driven controlled drives, methods for calculating these properties will be discussed. It will be shown how finite element models (FEM-models) can be used for correct calculation of the static stiffness of controlled feed axes without using a mechatronic model. Furthermore it will be shown, how to use a new compact form of mechatronic simulation model for improved determination of static and dynamic stiffness.

Keywords: mechatronic machine tools; mechatronics; simulation; manufacturing systems; machine tool control; feed drives; finite element method; FEM; static stiffness; dynamic stiffness; machine tool stiffness; machine tool design; modelling.

DOI: 10.1504/IJMMS.2011.041478

International Journal of Mechatronics and Manufacturing Systems, 2011 Vol.4 No.3/4, pp.370 - 384

Available online: 24 Jul 2011 *

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