AUGUST 2003

SIMPACK User Meeting 2003 in FreiburgThe SIMPACK User Meeting 2003 stood anew in the well known traditi-on of the previous events: The exciting historical location of Freiburg gave the backdrop for more positive news of SIMPACK’s market success, along with the „roll out“ of a new major release and outstanding papers presented by SIMPACK users.

The Historisches Kaufhaus in Freiburg, a medieval meeting point for traders and craftsmen, was, according to the SIMPACK users, one of the most beau-tiful venues that was ever chosen for

a SIMPACK User Meeting. Two days, full of information, news, fi nding out about what new has been modelled with SIMPACK and an information and knowledge exchange between users and the INTEC team made the User Meeting an event well worth at-tending.

INTEC LOOKS BACK ON A SUCCESS-FUL 1.5 YEARS

After the welcome speech from Dr. Lutz Mauer, Dr. Alex Eichberger re-viewed the past 1 ½ years since the

last User Meeting. INTEC’s turn over has increased by approximately 30% and a number of important new customers have decided to switch to SIMPACK. INTEC has kept on track with the corporate objectives that were set at Bad Ischl: SIMPACK Code Export is on the market and, together with ETAS hardware, will soon be extended to-

HerausgeberINTEC GmbH, Argelsrieder Feld 13, D-82234 Wessling

VOLUME 7, SECOND ISSUE

» USER MEETING..........................01

Johannes GerlINTEC GmbH

SIMPACK User Meeting 2003 in Freiburg

» SOFTWARE ................................04

Dr. Lutz MauerINTEC GmbH

New SIMPACK Release 8.6

» APPLIED RESEARCH ..................07

Andreas HeckmannDLR Oberpfaffenhofen

Thermoelasticity in Multi-Body Dynamics

» APPLICATIONS.........................010

Vladislav DrobnýCTU Prague

ABS Braking with SIMAT Co-Simulation Interface

» NEWS .......................................012

SIMPACK Engine and SIMPACK Elastomer

2

wards a prototype real-time solution for the automotive industry. The new solver technologies that are currently implemented also promise excellent potential. And fi nal ly the interna-tionalisation of the SIMPACK busi-ness is continuing to make strong progress.

8.6 HANDED OUT TO THE PARTICI-PANTS

Several members of the INTEC team gave an overview of the new products that come with SIMPACK 8.6 and gave hands-on presentations with the new software including:

– Code Export, bridging, for the fi rst time, the functionality of a general multi-body tool to HIL simulation, in real-time. A method to replace DAEs that are unwanted for real-time simuation was presented, in colaboration with the real-time hardware manufacturer ETAS.– The new Contact module with extended functionality and range of application.– SIMPACK Rail Switches, an add- on module for SIMPACK Wheel/ Rail.– MATSIM, an interface to MATLAB Simulink, allowing code created in MATLAB’s Realtime Workshop to be used in SIMPACK.– The DMU-Interface of SIMPACK that supports the exchange of data with Digital Mock-up tools.

RAILWAY USER PRESENTATIONS

With Alstom, Bombardier Transpor-tation and Siemens Transportation Systems the world’s leading railway companies were represented with at least one presentation from each at the SIMPACK User Meeting. Claudia Kossmann from Bombar-dier Transportation showed me-chatronic simulations of an advanced

train concept using Simulink and SIMPACK with the co-simulation in-terface. Dr. Kotz from Siemens TS Graz presented a similar approach of an entire SIMPACK and MATLAB based tool kit for mechatronic simula-tions. His colleague from Siemens TS Krefeld, Dr. Schröder, focused on the analysis of traction vibrations with groups of asynchronous motors. The modelling of fl exible car body struc-tures focussing on articulated trains was presented by Michael Peppel from Alstom. The railway engineering compa-nies Logomotive and IABG investi-gated the infl uence of train concept aspects to crosswind stability and the creation of excitation data for a wheel-rail system test rig - both presentations in co-operation with Deutsche Bahn AG. Finally Jenny Paulin from Citef gave an overview about the SIMPACK projects carried out at the University of Madrid, holder of a commercial SIMPACK installation, including an outstanding pantograph project with fl exible drive wires.

AUTOMOTIVE USER PRESENTATIONS

The reward for the highest fre-quency goes to Land Rover (Spen-cer Salter) for the simulation of the noise created by a radial 8 piston hydraulic oil pump when rotating up to 11000 rpm. High frequency ranges were also covered at Mercedes Trucks when evaluating the rolling behav-iour with the new SIMPACK feature non-linear frequency response. INTECs partner ALTAIR presented, together with Mercedes Trucks, the automated analysis of drive trains. Outstanding durability analysis results were presented in SIMPACK by Thomas Ille from MAN Trucks with the new FEMFAT-ANSYS interface and showed excellent correlation be-tween the measurement and simula-

» USER MEETING

Johannes GerlINTEC GmbH

Claudia Kossmann, Bombardier Transportation, presenting an in-vestigation of Active Bogie Stabi-lisation

Armin Veitl, Altair Engineering, pre-senting an engineering project of DaimlerChrysler and Altair Engi-neering

SIMPACK»News, August 2003

Bogie model from CITEF, Spain

Truck suspension model from Mer-cedes Trucks

Wind turbine model from TU Dresden

3 » USER MEETING

Johannes GerlINTEC GmbH

tion results. Albert Lutz from Robert Bosch GmbH explained how SIMPACK mod-els are used in their MATLAB Simulink based simulation concept for the de-velopment of active systems. A promising approach for an easy-to-use tyre model for handling simulations named TMeasy was pre-sented by Heinz Weinfurter from the Prof. Hirschberg Ingenieurbüro; on a similar note, TNO’s new tyre model SWIFT, introduced by Jan van Oosten, is designed to cover the higher fre-quency ranges that are relevant for active system design and ride simula-tions.

UNIVERSITY CONTRIBUTIONS

There were a number of very inter-esting contributions from SIMPACK´s university users. FKFS Stuttgart gen-erated their own self-programmed track module in SIMPACK. Tobias Schulze from the Technical Univer-sity of Dresden explored the fi eld of drive train vibration of wind turbines in a presentation that was one of the highlights of the user meeting. An overview of the simulation of adap-tive systems was given by Janko Wu-chatsch from Magdeburg University.

INTEC PARTNERS

Centric Software, ETAS (together with INTEC), MAGNA STEYR Engi-neering Center Steyr and Fluidon, all of them partners of INTEC, intro-duced their software tools and meth-ods “to get connected to” SIMPACK. The presentation of ETAS/INTEC in-cluded a revolutionary approach to create DAE-free and fully parameter-ised real-time models and gave us an idea about the future of this exciting new application fi eld for multi-body dynamics. We’re already looking forward to meeting you again or for the fi rst time in autumn 2004.