SimpackNews - Simpack AG

SimpackNews
5. Jahrgang
Dezember 2000
1.Ausgabe
SIMPACK in America and Japan
Intec and Altair signed a distribution agreement making Altair the exclusive distributor for the entire familiy of SIMPACK products in the US, Canada and Japan. This results in a further enhancement of the world-leading solver technology SIMPACK.
Eve n t s
Johannes Gerl
INTEC GmbH
Generating a turn over of more
the whole range of the SIMPACK
than sixty million dollars a year and
pro­duct family in North-America
employing more than 550 people,
and Japan.
SIMPACK User-Meeting
2000 in Konstanz
Altair Engineering, Inc. is among
Customers, in these countries,
the world‘s lea­ding providers of
will now be able to benefit from
engineering con­sulting services,
direct support. This sub­stantial
including pro­duct development,
extension of the mar­ket re­sults in
process and product information
a further growth of the SIMPACK
management, virtual prototyping,
development which will benefit
tes­ting and training.
all our customers.
S u r ve y
Sabine Engert
INTEC GmbH
Take part in our survey and
win a Psion Palmtop!
Within the framework of a very successful initial co-operation, Altair
and Intec developed an interface
between the solver technology
SIMPACK and the mechanical sys-
S o f t w a re
Dr. Trautenberg
INTEC GmbH
MotionView - Simpack
- Interface
tem simulation pre- and post-pro­
cessor for standardised auto­motive
engi­neering tasks.
This inter­face was partially financed
by five leading car manufacturers.
As a logical consequence Intec
and Altair ex­p anded the exist-
S o f t w a re
Dr. Stefan Dietz
INTEC GmbH
Fembs 6 and
Load-X-Port
ing partnership by a distribution
agree­ment signed by James Scapa,
President of Altair, and Alex Eichberger, Managing Director of Intec.
Altair is the exclusive dealer for
A. Eichberger (Intec) and J. Scapa (Altair)
Eve n t s
Johannes Gerl
INTEC GmbH
SIMPACK User-Meeting 2000 in Konstanz
Am 4. und 5. April 2000 fand im Steigenberger-Inselhotel in Konstanz am Bodensee das 3. Simpack User-Meeting statt. INTEC brachte
die SIMPACK-Community auf den neuesten Stand der Informationen: Eben erschienene SIMPACK-Module, zukünftige Programmversionen und die bevorstehende Umwandlung von INTEC zur Aktiengesellschaft waren die Highlights. Die SIMPACK-User gestalteten
mit neunzehn Vorträgen den Großteil der Veranstaltung. Am Ende herrschten bei den über achtzig Teilnehmern zwei Eindrücke vor:
die Freude an dem gelungenen User-Meeting und die Begeisterung über die Vorträge.
INTEC - Neue Produkte und neue
Märkte
Dr. Lutz Mauer eröffnete das SIMPACK User-Meeting 2000 mit der
Präsentation der Agenda und hieß
alle Teilnehmer herzlich willkommen.
Dr. Alex Eichberger präsentierte die
Entwicklung von SIMPACK seit dem
letzten User-Meeting im Herbst 1998.
Die letzten beiden Jahre sei es gelungen, neben dem Ausbau von SIMPACK
Wheel/Rail, SIMPACK Automotive+ in
der Automobilindustrie zu etablieren.
Die Zahl der Installationen von SIMPACK wächst immer noch um 50%
stärker als der Gesamtmarkt auf dem
CAE-Sektor. Dies ist umso erstaunlicher
als die Aktivitäten sich bis dato fast
ausschließlich auf Europa konzentrierten, wo SIMPACK-User durch ein
internationales Support-Team in der
Firmenzentrale in Weßling unterstützt
werden.
Durch die Anfang 2000 begonnene
Kooperation mit dem amerikanischen
Softwarehaus ALTAIR steht SIMPACK
nunmehr auch der amerikanische
und japanische Markt offen. Um dem
Wachstum der Firma Rechnung zu tragen und um für weitere Entwicklungssprünge von SIMPACK die Grundlage
zu schaffen, wird INTEC sich im kommenden Jahr in eine Aktiengesellschaft
umwandeln.
für SIMPACK entwickelt wurden. Diese
sind das Interface zu I-deas (FE- und
CAD-Paket) und das Interface zu
AMESim und SIMPACK Optimisation.
Load-X-Port, eine neue Schnittstelle
zum Export von Lasten aus SIMPACK
nach FE-Programmen wurde vom
verantwortlichen Entwickler Dr. Stefan
Dietz vorgestellt.
Entwicklungsleiter Dr. Wolfgang Trautenberg schließlich kündigte die neue
SIMPACK Zwischenversion 8.5 an und
gab einen Ausblick auf die neue Major
Release 9.0.
SIMPACK - Hardware-in-the-Loop
SIMPACK hat eine Funk­­tiona­li­­tät, mit
der man beliebige Modelle in FORT­
RAN-Code exportieren kann. Hierdurch
zeigt SIMPACK optimale Voraussetzungen für einen Code-Generator für
den Mech­anikteil von Hardware-inthe-Loop-Simulationen. Herr Neubeck
vom FKFS gab in seinem Vortrag einen
umfassenden Überblick der Potentiale,
welche in diesem Bereich in SIMPACK
stecken: beispielsweise die automatische Code-Konvertierung in C und
der Anschluß von SIMPACK-Modellen
an den MATLAB Realtime Workshop,
welcher beim FKFS bereits mehrfach
in Projekten für die Industrie durchgeführt wurde.
Vertriebs- und Marketingleiter Johan-
Partner-Software
nes Gerl gab eine Übersicht von den
Demnächst neu in SIMPACK verfügbar
neuen Programmodulen, die zuletzt
ist das Swift-Tyre Model von TNO.
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Download der Vorträge vom SIMPACK User-Meeting 2000 :
http://www.simpack.de/html/infodesk/UM2000/user_meeting.html
Swift benutzt zur Abbildung der Reib-
sich aber dennoch ohne Neupro­gram­
eigenschaften denselben Ansatz wie
mier­un­gen mit dem serienmäßigen
MF-Tyre, also die Magic Formula nach
Simpack Rad-Schiene-Kontaktmodell
Prof. Pajeka. Die höherfrequente Rei-
durchführen.
fendynamik wird allerdings durch ein
Pier Wiersma von NS Technisch On-
Ringmodell abgebildet, welches über
derzoek zeigte Simulationen, welche
diskrete Federn und Dämpfer mit der
begleitend zu Messungen an einer
Nabe verbunden ist.
Weiche durchgeführt wurden und sich
ALTAIR, neuer Distributionspartner
als „sehr nützlich zum Verständnis der
für SIMPACK in den USA und in Ja-
Meßergebnisse“ erwiesen. Vor allem
pan, stellte das Interface MotionView
die Planung weiterer Messungen ließ
- Simpack vor, welches den ALTAIR-
sich durch den Einsatz der Simulation
eigenen Pre- und Post-Processor für
effektiv gestalten.
Au­tomotive-Mehrkörpermodelle an
Im Zentrum des Vortrages von Michael
SIMPACK anbindet.
Seibert von der Siemens Duewag Schie-
Kontakt, Kometen und Skispringer
Der späte Nachmittag des ersten Tages
brachte einen ebenso unterhaltsamen
wie seitens der verwendeten Simulationstechnologie beeindruckenden
Ausklang. Dr. Hilchenbach vom MaxPlanck-Institut für Aero­nomie zeigte
SIMPACK-Mo­del­le des Kometen-Landers Rosetta, welcher in zwanzig Jahren
auf dem Kometen Wirtanen landen
soll. Herr Lehner von der TU-München
zeigte Bio-Mechanik-Modelle, welche
zur Ver­besserung von Skistiefeln und
Skibindungen für konventionelle und
für Curving-Skier verwendet wurden.
Volker Quarz von der Technischen
Universität Dresden lieferte einen
Überblick über die Kontaktmodelle in
SIMPACK, eingesetzt beispielsweise bei
der Simulation einer keilge­sicherten
nenfahrzeuge GmbH stand ein Fahrwerk nach dem Halbdrehgestellprinzip,
also ein Drehgestell, dessen zwei
Rahmen für bessere Bogengängigkeit
gelenkig miteinander verbunden sind.
Er verglich das Halbdrehgestellfahrwerk mit einem konventionellen und
einem Ein­zel­rad-Doppelfahrwerk. Die
Simu­lations­ergebnisse stellten Verschleiß, Stabilität und Fahrkomfort der
einzelnen Konzepte gegenüber.
Karl Tillmetz und Dr. Bernd Kessler von
Adtranz (CH) AG zogen schließlich
alle Register eines modernen Simulationstools mit einem ausgereiften
Wheel/Rail-Plugin. Durch den Import
von FE-Modellen von Wagenkästen
in SIMPACK wurde bereits bei einer
Reihe von Fahrzeugen der Fahrkomfort
deutlich verbessert. Diese Simulationen zusammen mit Know-How und
Erfahrung in der Meßtechnik sind der
Rohrladung bei Kurvenfahrt.
entscheidende Schritt zum Digitalen
SIMPACK Wheel/Rail
der ein enormes Potential im Bereich
Die Kundenvorträge zu SIMPACK
Wheel/Rail zeigten die gesamte Bandbreite eines ausgereiften und leistungsstarken Produkts, das die Marktführerschaft beansprucht.
Christoph Weidemann von der Bochumer Verein Verkehrstechnik GmbH ging
die Simulation gummigefederter Eisenbahnräder an. Diese Simulation ordnet
sich in den Forschungsbereich ein, läßt
Page 3
Proto­­typen im Schienenfahrzeugbau,
Kostensenkung bietet.
SIMPACK Automotive+
SIMPACK Automotive+ ist während der
letzten beiden Jahre mit inzwischen
über fünfzig Installationen zu einem
Standard-Werkzeug in der Automobilindustrie geworden. Entsprechend
waren zum ersten Mal die Vorträge aus
dem Automobilbereich in der Überzahl
- viele davon mit Berichten über ausgesprochene High-End-Anwendungen.
Den Auftakt machte Prof. Kovanda, von
der Czech Technical University Prag. Ein
konzeptioneller Vergleich zwischen
den Fahrwerken eines Porsche Carrera
und eines Honda Accord Coupé wurde
an der TU Prag im Rahmen einer Studienarbeit durchgeführt, jeweils mit
Gesamtfahrzeugmodellen mit elastokinematischen Achsfüh­rungen.
Heinz Weinfurter vom Ingenieurbüro
von SIMPACK in die Prozeßkette bei
der Fahrzeugent­wicklung, wie z.B. bei
der Entwicklung von Fahr­dynamikre­ge­
lungs­­syste­­men (ESP), der Wendekreisbe­
rech­nung und der Lastkollektivermittlung für FE-Berech­nungen.
Lauri Ohra-Aho zeigte die SIMPACK-Aktivitäten bei der Ford AG. Angefangen
mit den ersten Lizenzen von SIMPACK
1997 wird SIMPACK Automotive+ heute
für Gesamtfahrzeugsimulationen, zum
Teil mit elastischem Karosseriekörper,
und als Verbund des SIMPACK Solvers
mit ALTAIR’s Mo­tionView zur Analyse
von Radaufhängungen eingesetzt.
Das nächste Usermeeting wird im November 2001 stattfinden. Wir würden
uns freuen, wenn Sie daran teilnehmen
würden.
Dr. Hirschberg, Steyr, simulierte mit
SIMPACK Automotive+ Extremfahrmanöver von Sattelzügen der Firma MAN
Nutzfahrzeuge. Die detaillierten Modelle von Zugmaschine und Auf­liegern,
unter anderem mit tor­sions­elastischem
Rahmen, brachten auch bei Fahrmanövern nahe an der Kipp­grenze eine brilliante Übereinstimmung von Versuch
und Simulation.
Bei der MAN Nutzfahrzeuge AG wird
SIMPACK Automotive+ für zahlreiche
Komponenten bishin zu Gesamtfahrzeugsimulationen mit elastischen, FEmodellierten Rahmen und Achskomponenten eingesetzt. Thomas Ille zeigte Teilmodelle von Antriebssträngen,
Motoren mit Lagern, Aufhängungen
und dem neuen Produkt Trucknology
Generation bei Prüf­stands­ve­rsuchen.
Imre Boros von der DaimlerChrysler
AG demonstrierte den Einsatz von
SIMPACK in der Nutzfahrzeugbranche
des Konzerns an Beispielen. Hier zeigte
er die Lösung spezieller Problemstellungen wie Taumelschwingungen des
Motorblocks, des Getriebeblocks und
der Lenkungspendel mittels Simpack.
Weiter sprach er von der Einbindung
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Das Auditorium
Dr. Lutz Mauer: Eröffnung
Dr. Alex Eichberger: Neue Märkte
Thomas Ille, MAN Nutzfahrzeuge
Johannes Gerl: Neue Produkte
Dr. Bernd Kessler, ADtranz Schweiz
Dr. Stefan Dietz: Fembs 6
Imre Boros, DaimlerChrysler Nutzfahrzeuge
Dr. Wolfgang Trautenberg:
SIMPACK 8.5 und 9
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Pier Wiersma, NS Technisch Onderzoek
S u r ve y
Sabne
SabineEngert
Engert
INTEC GmbH
Create the Future of CAE
Win a Psion 5mx Pro with Leather Case
DLR, developer of the SIMPACK basic methods, is creating the future of computer aided engineering. Many new methods,
algorithms and software solutions will be developed during the coming years. With this survey we would like to have your
opinion about the future of our business. Return the questionnaire by 15th february 2001 and you could win a Psion S 5mx
pro. This Psion Palmtop has the power to communicate via e-mail, internet, fax or SMS with your colleages and friends, to
organize your business and private agenda, or to connect with your desktop PC.
Your Simulation Environment
1
How long have you already been working with simulation tools?
1-3
years
less than
a year
2
4-5
years
more than
5 years
To what extent do you use the functionality of the following systems?
MBS
FEA
CAD
Computer Aided
Control Engineering
(CACE)
Hardware
in the Loop
(HIL)
Non User
up to 25% of its capabilities
up to 50% of its capabilities
up to 75% of its capabilities
use its full capabilities
Going regularly over
the systems capabilities
3 How satisfied are you with those tools?
MBS
FEA
CAD
Computer Aided
Control Engineering
(CACE)
Hardware
in the Loop
(HIL)
very satisfied
satisfied
less than satisfied
not at all satisfied
don`t know
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News
000
000s
4
As you know there can be specific problems with simulation packages. What is the major problem with the simulation
package that you currently use? (several answers possible)
It requires
too much
time
the functionality is not
sufficient
it is too specialised
There is no
problem
other, it is __________________
___________________________
Integrating Your Tools
5 Which kind of product integration (two in one) would you be interested in?
MBS+CAD
FEA+CAD
MBS+CACE
MBS+FEA
other, it is __________________
6 Often two different modelling tools are used. You may have to enter the same modelling data twice, once in each mod-
elling package. How much data has to be entered twice? (Please answer in %)
% MBS+CAD
% FEA+CAD
% MBS+CACE
% MBS+FEA
The Future
7 Imagine your simulation tools in ten years.
Will it be necessary to know more or less engineering theory than today for using your tool?
I guess more
8
I guess less
I don`t know
If you received 50 000 Euro to improve the facilities available at your work, would you invest them in ...
(Please fill in your order of preference 1 - 4: 1=being most important, 4=being less important)
a different
software
a develop­ment
project to improve
your tool
software
training for
yourself
theoretical
training for
yourself
...the same tools as
today, but with much
better interfaces
...more specialised
tools with more sophisticated interfaces
...don`t know
9 In ten years there will be ...
...one general CAEtool that consists of
all the others
Page 7
10 Concerning the functionality of a CAE-tool my simulation tool should ...
be easier to
handle
dispose of
extended
functionality
contain more
powerful solver
technology
don`t know
other, it is
______________________
don`t know
other, it is
____________________
11 Concerning the handling of a CAE-tool I prefer to have...
‘one button’
solutions
as much control over the software’s
functionality as possible
Let’s talk about SIMPACK
12
Which area of SIMPACK should be concentrated on, in terms of its future development?
Usability
Technology
Graphical User
Interface
Libraries
don`t know
Other, it is _______________________________
13
14
If there were to be other products from the SIMPACK team, I would be interested in
Fluid Simulation (Hydraulics,
Pneumatics, etc.)
CACE
Fatigue
Analysis
Hardware-in-the-loop
extension
the SIMPACK-solver as a
plug-in for CAD systems
Extended FEA-connection
(Co-Simulation, non-linear FEA,
integrated FEA-tool etc.)
If we need further information concerning CAE or especially SIMPACK, could we call you by telephone?
Yes, my telephone number is __________________________
name function
company e-mail-address
No
Copy and fax by 15th february 2001 to INTEC GmbH +49-8153-9288-11
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N e w S o f t w a re
Dr. Wolfgang Trautenberg
INTEC GmbH
Interface between SIMPACK and MotionView
ALTAIR and INTEC have presented a Beta-version of the interface between the pre- and post-processor MotionView and the SIMPACK
solver. This project has had the support of Alfa Romeo, BMW, Ford, Porsche and Volkswagen. The current function­ality of the interface
allows a MotionView model to be calculated using the SIMPACK time domain solver, as well as allowing plots and animations of the
SIMPACK produced results.
Project Partner
The development of the interface has
been backed by the Automotive Industry, who have highlighted what they
would like featured in the inter­face.
Current MotionView users of the preand post-processor see the possibility
for their current simu­lation capabilities
to be ex­tended with the addition of the
fastest and most reliable MBS solver on
the market.
The development of the interface has
taken 3.5 man years. Funding has come
from Alfa Romeo, BMW, Ford, Porsche
and Volkswagen.
MotionView
MotionView is currently used al­most
exclusively for building up auto­motive
models, whether it be single as­semblies
or complete vehicles. With the so-called
Wizards, the models can be built up
in the form of multilevel as­semblies
from ready made com­ponents such
as suspen­sions, steering systems and
power trains. To build up a completely
new model however the model must
be in ASCII format. Models prepared
within MotionView by simulation en­
gineers, can than be easily mo­dified
Page 9
by the relevant vehicle specialists,
within the MotionView en­viron­ment.
The vehicle specialists do not need to
have a complete under­standing of the
pro­gram, but only a general overview
of how it operates.
You can use the model browser, alongside the 3D graphics, for the visualisation of the model structure, which is not
too dissimilar to the file browser of an
operating system. As in SIMPACK, it is
possible within Mo­tionView to display
graphically the results of a simulation
in the form of animations and plots. The
animation is based upon the ALTAIR
H3D file. This pure results file contains
the time history of the simulation and
the 3D description of the model. This
allows the results files to be given to
other users whilst keeping the exact
details of the model set-up secret. This
H3D file is a 3D animation file which is
so compact - you can send it or publish
it easily via internet.
Further details about the interface are
going to be discribed in one of the following SimpackNews.
N e w S o f t w a re
Dr. Stefan Dietz
INTEC GmbH
New Tools for MBS-FEA-Interfacing:
FEMBS 6 and Load-X-Port
An efficient and accurate implementation of flexible bodies is one of the major advantages of SIMPACK. With the new Version 6 of
FEMBS and the new interface Load-X-Port, it is now possible to import flexible structures even more conveniently into SIMPACK and
to export the loads, acting on a flexible body, from SIMPACK to FEA-codes. The easy-to-use interface of Load-X-Port provides all the
data necessary for the FEA tools to calculate deflections and stresses. This can lead to enormous potential savings in terms of time
and money within the development process.
Flexible Bodies in SIMPACK Using
FEMBS 6
The SIMPACK Interface used to import
flexible bodies, FEMBS, is currently
available as Version 6 for the FEA codes
ABAQUS, ANSYS, I-deas, NASTRAN and
MARC. Here - in contrast to other MBS
tools - SIMPACK can take into consideration the geometric stiffening effects,
al­lowing for the increased bending
stiffness of the rotor blades while rotating. This method is as accurate as using
a FEA tool but the calculation requires
less computation time and much less
user effort, than if the flexible body was
subdivided into separate flexible bodies and later merged in a multi-body
system software.
The capabilitiy of the new Version 6 of
FEMBS has now been expanded by a
new feature. In SIMPACK, flexible bodies are con­nected to the multi-body
system by force elements constraints
and a joint. Sometimes these interconnections cause local deformations at
the attachment points of the structure.
Consider the de­formations of a railway
car body which is connected, at distinct
points, to an electrical transformer.
To treat such local deformations, it is
either possible to use so-called static
modes or to use a large number of
normal modes. Generally, the normal
mode approach is less efficient due to
a large number of additional degrees of
freedom corresponding to the normal
modes. The static mode approach is
fre­quently difficult to apply, because
it is sometimes impossible to define an
appropriate set of boundary con­ditions
for the static mode cal­cu­lations. This
can be particularly problematic when
looking at floating vehicle com­ponents
such as flexible car bodies. In contrast,
FEMBS now uses the frequency response mode approach. This applies
to floating vehicle com­ponents and
has be­c ome the most appropriate
solution ap­proach for flexible bodies
in SIMPACK. The deformed shape of
an elastic part, due to external forces
acting on the body, can now be taken
into con­sideration much more easily.
An additional calculation step is all
that is required within FEMBS to yield
the results, which means that it is not
necessary to repeat the FE analysis. The
set of additional frequency re­sponse
modes can represent elastic body deformation for all parameters (stiffness,
damping, etc.) of the interconnections.
With a single set of modes the user may
perform para­meter variations, whilst
obtaining accurate elastic behaviour.
Therefore, the number of models
exchanged between FEA-codes and
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SIMPACK is decreased, as well as im-
The result file is stored as an ASCII
proving the handling quality of the
file. Currently the user has the choice
whole design process.
between the formats of ANSYS and
Calculation of Loads on Flexible
Bodies in SIMPACK
Having imported a flexible structure to
SIMPACK, all the forces acting on the
NASTRAN. Load-X-Port will be avail­a­ble
for Life time calculation tools in the
near future.
New BEAM Available Soon
body can be calculated in SIMPACK us-
For simple, beam-like sectioned struc-
ing the time integration module.
tures with constant cross sec­tional are-
As a first step, the user of FEMBS has to
as, for instance stabiliser bars and shafts
select nodes on the FEA–model which
of drive trains, the SIMPACK pre-proces-
should be transformed to mar­kers in
sor BEAM can provide the same input
SIMPACK. All these markers are then
for SIMPACK, as a FEA package creates
available to apply external forces in the
together with FEMBS. By 2001BEAM
multi-body simulation, i.e. constraint
will be able to consider three-dimen­
forces, spring and damper forces etc.
sional frameworks. A graphical user
Load-X-Port
After the time integration has been
performed, the forces acting on the
interface directly integrated into SIMPACK will also be available.
Benefits
flexible structure are available for any
SIMPACK offers the user high-end simu-
attachment point and time step. How­
lation technology for the con­sideration
ever, the external forces produced
of flexible structures. All the additional
by the springs, joints, etc. are not ne­
features make the handling of com-
cessarily in equilibrium, i.e. an overall
mon tasks by simu­lation experts much
ac­ce­leration of the body would appear
easier and allow a more integrated
in the FEA-code. Therefore Load-X-Port
design process.
automatically adds the movement
These abilities are essential for an
of the body fixed reference frame cal­
accurate and efficient simulation of
culated by SIMPACK to the load vector
flexible parts such as stabilisers, leaf
which is exported. The FEA-code then
springs, sub frames, twist beam rear
calculates and takes into account the
axle suspension systems and car bodies
corresponding inertia forces for a
in automotive and railway design.
quasi-static overall motion.
Evaluating the result of the time integration, the user can decide which time
steps should be written to the result file
by Load-X-Port. The files serve as the
input for the quasi-static time domain
calculations in the FEA- codes, giving
the stresses and de­flections.
A selection tool helps to quickly define
either the number of time steps with a
certain increment or the time interval
in which to perform the calculations.
Page 11
Staff
Dr. Alex Eichberger
INTEC GmbH
Neue Verantwortlichkeiten bei INTEC
Mit Beginn des Jahres 2000 wurden
Director Product De­v e­l op­m ent
die SIMPACK-Entwicklungsaufga-
führt er nun die Ent­wicklung von
ben neu strukturiert. Der Schritt ist
SIMPACK und der SIMPACK-Inter-
im Erfolg der Software begründet,
faces in die Zukunft.
in der ständig wachsenden Zahl
Johannes Gerl arbeitete von 1994
von Installationen und Entwick-
an zunächst ein Jahr beim DLR
lungsprojekten.
und wirkte an der Entwicklung von
Der SIMPACK-Entwicklungspart­ner
SIMPACK Wheel/Rail beim Bench­
DLR konzentriert sich künftig auf
marking der neuen Software mit.
den Bereich der MKS-Methoden,
Es folgten insgesamt fünf Jahre
also Algorithmen, Numerik, Solver
bei INTEC. Die ersten zwei Jahre
und CAE-Interfacing. Der Ein-
als Projektingenieur, zunächst im
satz von SIMPACK für DLR-eigene
Bereich Wheel/Rail, dann auch
Forschungspro­jekte in den Berei-
im Bereich Automotive+. Die fol-
chen Straßen- und Schienenfahr-
genden beiden Jahren bei INTEC
zeuge und Flugzeuge bleibt jedoch
leitete er Engineering-Projekte
erhalten und ist eine unserer an-
und übernahm Aufgaben aus dem
spruchsvollsten Testplatt­for­men.
Vertrieb, auch in Zusammenarbeit
INTEC nimmt sich der eigent­l i­­
mit den SIMPACK-Partnern im Aus-
chen Software-Entwicklung von
land. Sein Engagement im SIMPACK
SIMPACK an. In diesem Zuge leitet
Marketing brachte die SIMPACK
Dr. Wolfgang Trauten­berg nun die
News und den „Leo­nardo da Vinci-
Entwicklungsabteilung bei INTEC
Stil“ der Corporate Identity von
und Johannes Gerl den Bereich
SIMPACK hervor. Seine neue Stelle
Vertrieb und Marketing.
als Director Sales and Marketing
Dr. Wolfgang Trautenberg begann
umfaßt den nationalen und inter-
seine mittlerweile zehnjährige Ak-
nationalen Vertrieb von SIMPACK,
tivität im SIMPACK-Umfeld mit der
sowie das SIMPACK-Marketing.
Johannes Gerl und Dr. Wolfgang Trautenberg
Entwicklung der CAD-Interfaces
ProSIM und CatSIM und war dann
für das SIMPACK-GUI zuständig.
Nach abgeschlossener Promotion
verbrachte er das letzte Jahr zum
Teil in den USA, um in Zusammenarbeit mit ALTAIR als INTEC-seitiger
Projektleiter die MotionView-SIMPACK-Schnittstelle zu entwickeln
(siehe Artikel in dieser SIMPACK
News). In seinem neuen Job als
Page 12
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IdeSIM available now
Updates for Wheel/Rail
The SIMPACK family of CAD inter-
New plot features for the analysis of
faces has a new member, IdeSIM,
the geometrical contact con­ditions
the interface between I-deas and
are now available with SIMPACK
SIMPACK. IdeSIM is completely
Wheel/Rail. The new win­dow in-
integrated into the I-deas Graphic
cludes a collection of the most im-
User Interface (GUI) and enables the
portant and often used modelling
user to create and export SIMPACK
para­meters and charts, for instance,
models without having to leave the
the location of the corresponding
I-deas environment. Therefore it is
contact points on the wheel and
possible to choose from a variety
rail profiles are shown to­gether
of SIMPACK modelling elements
with a description of typical con-
and automatically extract mass
tact parameters.
properties, coor­dinate systems and
With the release of SIMPACK 8,
geometry of an I-deas assembly.
Patch 6, the Wheel/Rail module
With the exported IdeSIM models,
can now simulate completely
The models are organised as stand-
the full range of SIMPACK’s solver
elastic wheelsets and wheels. The
ard substructures. A detailed de-
power, interface technology and
shaft as well as the wheel disk can
scription will follow in the next
post processing functionality is
be imported by FEMBS from the
SIMPACK news.
available. IdeSIM ensures con-
FEA-tool.
sistent data storage in the CAD
model, which means that it is even
Patch 6 for SIMPACK 8
possible to open the exported
The new program update includes
model within SIMPACK without
more than forty user requests, plus
lo­­sing the dependencies defined
a number of new features which
in IdeSIM. The integrated interface
include new plots, screen shots and
ideally supports the concurrent
movie generation as well as a new
engineering approach in product
air spring force element.
- the two axle freight train wagons
Hbbins, KLS442 and Lgjs578 and
Tdgs930
- the flat wagon RS675 with Y25
bogies
- the flat wagon RS680 with the
bogies BA931, RS BA88
- the flat wagon RS686 with BA
65 bogies
- the container wagon Sgns with
B626(Y25) bogies
- the container wagon Sggns694
with B626(Talbot) bogies
design, by enabling the design
and simulation engineers to easily
Collaboration with ERRI
share their model data between
DLR, the European Rail Research
I-deas and SIMPACK. With the use
Institute ERRI and INTEC have
of IdeSIM, the time to ge­nerate a
signed an agreement to mu­tually
SIMPACK simulation model is dras-
market and maintain an extensive
tically reduced, when compared to
library of freight car models to be
the conventional method of trans-
used with SIMPACK Wheel/Rail. The
ferring only the geometrical data
library has been developed by DLR
from a CAD to a MBS pack­age.
and ERRI in close collaboration
with the UIC-members DB AG, NS
and SNCF. These libraries have been
validated extensively. The available
vehicles will be:
Page 13
Train Ensemble Three Wagon from the New ERRi Database
.... News .... News ..... News .... News .... News ..... News .... News
Aerodynamics in Automotive+
SIMPACK Engine
ProSIM on ProUser2000
SIMPACK Automotive + is now
INTEC is working on the develop-
The well-known SIMPACK Pro/En-
available with elements which can
ment of a new SIMPACK Plug-In
gineer interface ProSIM was pre-
model aerodynamic for­ces. Air re-
sented at this year’s Pro/Engi­neer
sistance is defined as three forces
Users Conference in Florida.
(longitudinal, lateral, vertical) and
ProSIM provides the full SIMPACK
three torques (roll, pitch, yaw)
modelling power under the user
which act on a vehicle chassis.
interface of Pro/Engineer (includ-
The air resistance Force Elements
ing flexible bo­d ies) and is able
apply the resistance forces and
to export complete models to
torques as functions of air resist-
SIMPACK, af­fi rming SIMPACK as a
ance coefficients. These coefficients
are defined by the Input Function
against the side-slip angle. Ad­
ditionally a simple longitudinal
force, air resistance model with a
constant air resistance coefficient
is offered.
The complete set of elements
needed to take into account air
resistance are found within a SIM-
for the simulation of engines and
engine components.
The Plug-In will have the following
features: multi-cylinder engine
models, a flex­ible lump valve spring
model, taking into account the
contact of windings, a cam contact
model, a chain and belt model, different engine bearing models and
high-end simulation tool.
With SIMPACK as the “missing link”,
the export of CAD data to CACE systems such as MATRIXx SystemBuilt
and MATLAB/Simu­link is possible,
guaranteeing a continuous and
integrated design process.
A similar interface is also available
for Catia and I-deas.
pa­ra­me­ter­ised drive train models.
Co-operation with Politecnico
New BEAM in Development
Since the beginning of July 2000,
and provides the graphical repre-
The successor of the SIMPACK pre-
sentation in terms of scaled arrows
processor BEAM will be avail­a­ble in
in the field of railway system dy­
with user defined scale factors.
spring 2001. Major enhancements
The forces are split between the
will be a new graphical user inter-
front and rear axles so that they
face, integrated in SIMPACK and
PACK Substructure. This substructure applies air resistance forces
and torques on the vehicle chassis
of special note the extension to
three dimensional frameworks. This
lifts BEAM to the level of a simple,
beam element based FEA tool.
Presently BEAM creates a SID-file
for the des­cription of the flexible
body in SIMPACK, which includes
geo­m etrical non-linearity and
load stiffening effects. Possible apreplace the effects of air resistance
plication examples include space
torques.
frames, stabiliser bars (modelled
The aerodynamic forces have been
as one body in SIMPACK) and as
integrated in collaboration with
mo­d elled previously shafts and
BMW Technik GmbH.
rotor blades.
INTEC has been collaborating,
Matlab/Simulink
namics, with the Italian Uni­versity
Politecnico di Torino, Faculta di
Ingeneria from Prof. Antonio Gugliotta. The first joint project will be
the international research project
Mechatronic Train.
Workshop: SIMPACK Real­-time
To increase SIMPACK’s functionality in the real-time simulation
domain, major enhancements of
the SIMPACK Symbolic Code are to
be brought about. A workshop on
this field will be arranged to learn
more about customers’ wishes and
demands. Please contact INTEC for
details.
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New University and Research Licences
Deutsches Zentrum für Luft- und Raumfahrt,
Institut für Bauweisen- und Konstruktionsforschung, Stuttgart (Germany)
Escuela Técnica Superior de Ingenieros Industriales, Madrid (Spain)
Fachhochschule Braunschweig/Wolfenbüttel, Fachbereich Maschinenbau (Germany)
Fraunhofer-Institut für Produktionsanlagen und Konstruktionstechnik, Berlin (Germany)
Freie Universität Berlin, Universitätsklinikum Benjamin Franklin (Germany)
Johannes Kepler Universität Linz, Institut für Mechatronik (Austria)
Northern Jiaotong University, Beijing (China)
TU Braunschweig in Zusammenarbeit mit der DLR, Braunschweig (Germany)
Università degli Studi di Perugia (Italy)
Market
Market Review
Review
Seven new Customers Using
SIMPACK Wheel/Rail
Another five companies have started
to use SIMPACK Wheel/Rail or even
changed from other commercial pro­
ducts to SIMPACK, helping to extend
its market leadership in the railway
domain and increasing the number of
industrial installations to over sixty.
University of Siegen, Siegen (Germany)
New Commercial Licences
ADtranz Schweiz, Winterthur (Switzerland)
Advantech Hungary LTD, Budapest (Hungary)
ALSTOM LHB GmbH, Salzgitter (Germany)
BMW AG, Sparte Motorrad, München (Germany)
Breda Costruzioni Ferroviarie S.p.A., Pistoia (Italy)
Consultens Informationstechnik GmbH, München (Germany)
DAF Trucks N.V., Eindhoven (Netherlands)
SIMPACK has become more and
more the Standard for Europe’s
Truck Manufacturers
Japan Railway East Co., Tokyo (Japan)
Eurocopter Deutschland GmbH, Donauwörth und Ottobrunn (Germany)
With the decision of DAF, together
Fairchild Dornier GmbH, Oberpfaffenhofen (Germany)
with MAN and DaimlerChrysler, the
Logomotive GmbH, Nürnberg (Germany)
third traditional European Truck Manu-
NABI Rt., Budapest (Hungary)
facturer is now using SIMPACK Auto-
National Aero-Space Lab. Netherlands (NLR), Amsterdam (Netherlands)
motive+, along with the truck suppliers
Robert Bosch GmbH, Stuttgart (Germany)
Bosch, Trelleborg and Wabco.
Siemens Krauss-Maffei Lokomotiven GmbH, München (Germany)
SIMPACK on Air
SIMPACK at Conferences and Exhibitions
After benchmarking thoroughly the
other available MBS software Eu-
20. - 22.02.2001
23.02.2001
08. - 09.03.2001
22. - 28.03.2001
06. - 07.06.2001
19. - 22.06.2001
28. - 29.06.2001
Page 15
4. Symposium Kraftfahrwesen und Verbrennungsmotoren, Stuttgart
VDI Kurs Fahrzeugdynamik, Stuttgart
Fahrwerk-Tech 2001, München
Cebit, Hannover
Automobile and Railway Vehicle Dynamics, Lyon
CAT Engineering, Stuttgart
VDI Tagung Nutzfahrzeuge, Neu-Ulm
rocopter’s company wide virtual
prototyping solution is SIMPACK - a
trend-setting decision from a company whose products are probably
the most demanding of all in terms of
system dynamics.
Co n t a c t
SimpackNews
1996-2000
Auflage: 2200
U n i te d S t a te s
Altair Engineering
1 7 5 7 M a p l e l aw n D r i ve
Troy, M I 4 8 0 8 4 - 4 6 0 3
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Japan
INTEC GmbH
Münchener Straße 20
D-82234 Weßling
Tel.: +49-8153-9288-0
Fax.: +49-8153-9288-11
E-mail: intec@simpack.de
HTTP: www.simpack.de
SIMPACK Version 5,6,7,8,
FEMBS, LOADS,
ProSIM, CatSIM,
SIMAT, SIMAX
(Intec GmbH, DLR)
REGISTERED TRADEMARKS
ABAQUS: Hibbit, Karlsson & Sorensen, Inc.
A l t a i r E n gi n e e r i n g, L td.
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Wo r l d w i d e
INTEC GmbH
Münchener Straße 20
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E-mail: intec@simpack.de
ANSYS: Swanson Analysis Systems,
Inc.
CATIA: Dassault Systems
Co py, f i l l i n , f a x .
NASTRAN: MSC.Software Corporation
MATLAB: The MathWorks, Inc.
MATRIXx: Integrated Systems, Inc.
Name
Co m p a ny
Ad re s s
MARC: MSC.Software Corporation
Pro/ENGINEER: Parametric Technology Corporation
Te l e p h o n e
Applications
Fa x
E-mail