The decision to use SIMPACK was based upon a three year in depth software evaluation in the area of engine dynamic simulation. New SIMPACK software developments, resulting from a close collaboration between INTEC, the developers of SIMPACK, and Daimler Chrysler were also an important aspect of the evaluation.
The decision to conduct a software evaluation and switch to SIMPACK was taken by Daimler Chrysler because:
- The mechanics of complete engines, including all inter connections, is extensively analyzed and simulated at DC. Therefore the best available MBS solver performance and accuracy for this demanding task was chosen.
- A suitable software partner, which is dynamic and has short reaction times to demanding innovation requirements is also indispensable.
- Processes and interfaces (e.g. FEM, EHD, etc.) which are both flexible and verified are essential within the MBS simulation solutions.
- The chosen software must guarantee to be able to remain at the forefront of MBS simulation technology (e.g. Fatigue, NVH, etc.).
- Component models (dynamic valve spring, HLA, gear wheel, flexible contact, EHD, etc.)
- Single valve mechanism
- Complete valve train models
- Timing mechanism (chain and gear)
- Coupled complete systems (valve train – timing mechanism - crank train)
The operative application of SIMPACK at Daimler Chrysler (Mercedes-Benz Car Group, Department of Power Train Simulation) began on January 1st 2006.
SIMPACK, originally developed by DLR, the German Aerospace Center, has become the world leading multibody simulation software tool for simulating commercial road vehicles (e.g. DAF, DaimlerChrysler, MAN, Nissan Diesel, etc) and railway vehicles (Alstom, Bombardier, Siemens, etc). SIMPACK is now gaining ground at an ever increasing speed in demanding areas such as engine simulation and HIL/SIL applications. SIMPACK’s ability to simulate high frequency vibration and harsh shock contact, in both the frequency and time domain, has made SIMPACK the number one choice for not only ride and comfort analyses but also for fatigue studies. SIMPACK’s flexibility and excellent connectivity to various CAD, control, hydraulic and FE software enables SIMPACK to be easily integrated into manufacturers’ already established development processes.
INTEC GmbH was founded in 1993 and now has representatives and partners all over the world. INTEC is solely responsible for the development of SIMPACK, including SIMPACK’s interfaces, and offers consulting and engineering services as well as SIMPACK training courses.
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