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B. Heinzl, M. Rößler, N. Popper, M. Landsiedl, C. Dorn, S. Brandstetter, F. Bleicher, A. Dimitriou:
"Studies on Multi-Domain Modelling and Thermal Coupling of a Machine Tool";
Talk: ASIM 2011, Winterthur, Schweiz; 09-07-2011 - 09-09-2011; in: "Tagungsband Abstracts und Fullpapers", ZHAW School of Engineering, (2011), ISBN: 978-3-905745-44-3.

Energy optimization in production plants is at present a very current topic. In this context,
the research project INFO1 deals with a comprehensive simulation of production
halls with all micro- and macrostructures, in order to be able to make qualified predictions
about the efficiency of different energy saving measures. An important sub-range of
this research concerns modelling and simulation of machine tools, two parts of which will
be presented in this paper.
The first part focuses on general multi-domain modelling of an actual machine tool
(i.e. a lathe from the Institute for Production Engineering and Laser Technology from the
Vienna University of Technology). An object-oriented modelling approach allows combining
electrical, mechanical as well as thermal aspects in a structural manner. Combined
top-down and bottom-up modelling techniques with gradually increasing level of detail
identify the degree of modelling effort necessary or sufficient for certain applications and
simulating certain scenarios. Future work plans to validate the simulation results against
measurement data obtained from machine tests with the lathe.
The second part concentrates on the thermal coupling of the machine tool components
with the environment. For that we selected a specific area of a machine tool, i.e. a linear
guiding device with drive motor. In a first step the thermal behavior is studied and in a
further step we consider the heat transfer and other effects on the environment. For this,
the room around these tools is discretised in thermal compartments, which can also affect
each other. The object-oriented modelling approach allows refining the discretisation
easily, so that effects of a higher resolution can be studied too. Like in the first part, the
simulation results will be validated against measurement data from the machine tool