FOR 1087:  Damping Effects in Machine Tools

• Subject Area: Mechanical and Industrial Engineering
• Term: from 2009 to 2019
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 67192760

Today’s dynamic demand on machine tools is increasing arithmetically with new highly dynamic and flexible machining tasks. The performance of machine tools is often diminished by vibration phenomena which are caused by adverse dynamic machine behaviour. Currently the reliable determination of the dynamic behaviour of machine tools can only be performed on real prototypes with the help of metrological investigations. Subsequent measures to improve the dynamic behaviour represent a serious time and expense involved in the development of machine tools. For this reason, the determination of the dynamic behaviour of exciting tools with the help of virtual prototypes in recent times is increasingly becoming the focus of manufacturers. By the use of highly developed software solutions and high performance processors the dynamic behaviour of the machine tool’s structure can be calculated properly. Nevertheless most calculated results are defective. The reason can be find in the fact, that there is no knowledge about the damping behaviour of the machine‘s components and the lack of capable models and parameters.
The Research Unit’s target is to analyse the most important machine-components according to their damping behaviour. Based on extensive measurements and suitable models to describe damping in the simulation the project will establish a basis to improve the forecast of the dynamical behaviour of machine tools.

• DFG Programme: Research Units

Projects

• Grundlagenuntersuchungen zur effizienten Dämpfungsbeschreibung und -parametrierung für elementare werkzeugmaschinentypische Körper und Kopplungselemente (Applicant Ihlenfeldt, Steffen )
• Methodik für die Messung von Dämpfungseffekten in Werkzeugmaschinenkomponenten (Applicant Brecher, Christian )
• Simulation von Dämpfungseffekten in der gesamten Werkzeugmaschinenstruktur (Applicant Zäh, Michael Friedrich )

• Spokesperson: Professor Dr.-Ing. Christian Brecher