2012
EMSS 2012 Proceeding
Object-oriented multi-domain modelling of machine tools: a case study
Authors: Bernhard Heinzl, Michael Landsiedl, Niki Popper, Alexandros-Athanassios Dimitriou, Fabian Dür, Friedrich Bleicher, Christian Reinisch, Felix Breitenecker
Abstract
A number of current research projects aim at increasing energy efficiency in production by using comprehensive simulation models of manufacturing plants. In order to gain knowledge about the optimization potential of ma- chine tools, a simulation model of a turning lathe is de- veloped. Using an object-oriented modelling approach allows combining component models of mechanical, electrical and thermal parts in a structural manner in one multi-domain model. This bottom-up approach is com- bined with stepwise top-down modelling in three stages in order to identify numerical boundaries of the simula- tion. Simulation results are validated against measure- ment data. It is confirmed that object-oriented model- ling leads to flexible and modular models, but the automatically generated equations are less efficient dur- ing simulation, therefore making it necessary to perform manual adjustments in the model. To increase simula- tion speed, multirate simulation is performed in Sim- scape using local implicit fixed-step solvers.
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