Diploma and Master Theses (authored and supervised):
"Objektorientierte Modellierung und dynamische Co-Simulation mit CATIA V6 am Beispiel von Kraftfahrzeugsystemen";
Supervisor: F. Breitenecker;
Institut für Analysis und Scientific Computing,
final examination: 2013-05-24.
The connection of the different aspects in the process of virtual product development
offers new potential for innovation and efficiency. For instance, the combination of
Computer-Aided Design (CAD) and physical systems simulation helps analysing the
effects of a component on the entire system in the design stage. This idea requires
advanced approaches in computational engineering, for example through Cooperative-
Simulation (Co-Simulation). In this context the main goal of this study is to investigate
the possibilities of Co-Simulation with CATIA V6 Dynamic Behavior Modeling. Starting
with the basic principles of acausal, object-oriented modeling with Modelica, methods
of implementing a Co-Simulation are discussed. Two different approaches for integrating
CATIA V6, especially with regard to accessing the geometry data of CAD models,
are presented and assessed. By examining methods of implementation, simulation errors
and flexibility of simulator choices, the Building Controls Virtual Test Bed (BCVTB) is
preferred to the Functional Mockup Interface (FMI). To ensure efficient computation, a
method for parallelisation of a Co-Simulation is investigated. As an example, the model
of a motor vehicle demonstrates the possibilities of Co-Simulation in connection with
CATIA V6. The application of the Modelica language allows an object-oriented description
of mechanical components. Special attention is paid to the model of the wheel,
specifically on the flexible usage with regard to the whole automobile. The engine is
implemented as a data-based model in MATLAB, based on its characteristic behaviour.
The main gear box is incorporated by inclusion of the transmission ratios. The selection
of the gear can be represented as a state chart in Stateflow. Various scenarios are simulated
and the behavior of the model with the pros and cons of the chosen approaches are
discussed. The possibilities and limitations of the applicability of the model are shown.
With the presented methods, future potential of using Co-Simulation with CATIA V6
for virtual product development arises.
Electronic version of the publication:
Created from the Publication Database of the Vienna University of Technology.