For component simulation and complete vehicle crash calculations, the institute utilises several nodes of the DLR large-scale cluster CARA in Dresden. With its help, various complete vehicle crash calculations can be carried out simultaneously within a few hours. By sharing the cluster with other institutes, the load peaks of the individual institutes can be equalised and additional computing power can be made available if required. The software used by FK is LS-Dyna from ANSYS (formerly LSTC) and VPS - VIRTUAL PERFORMANCE SOLUTION (formerly PAMcrash) from esi.
Technical data
2,720 nodes each with
2x AMD Epyc 7601 (32 cores @ 2.2GHz each)
128GB Ram
Mellanox InfiniBand HDR network
Used for
Utilisation for crash simulations using LS-Dyna & VPS
In the area of static optimisations, wall thickness and topology optimisations of large components are carried out on the server, for example of complete rail vehicle bodies. These large models require a lot of RAM and are paired with a large number of load cases, which can be calculated in just a few hours thanks to parallelisation. The software used for this is Optistruct from Altair and Nastran from HEXAGON (formerly MSC). Specially developed software is also used for automatic CAE processes on the server.
Technical data FK-LB9200
HPC server
4x intel E7-8880 v4 (22 Cores @ 2.2GHz each)
3TB DDR4-2400MHz
6TB Raid 50 SAS12G SSD
Used for
static simulation using MSC-Nastran,
Topology optimisation using Altair Optistruct
& CAE process chains for automated static and dynamic simulations
The Institute uses the calculation server to set up and calculate local process chains with integrated explicit simulations and to train neural networks. Due to its number of processors, the server can be used to carry out crash calculations from components to complete vehicle simulations and test them locally before transferring them to the DLR large-scale cluster. The server is also used for automated material map derivation for crash simulation. The main software used for this is LS Dyna, VPS and Carmaker.
Technical data
FK-FLK90006 for dynamic optimisations
HPC server
2x AMD Epyc 9654 (96 cores @ 2.4GHz each)
768GB DDR5-4800MHz Ram
16TB NVMe SSD
6x Nvidia Quadro RTX6000 (24GB)
Used for
Use for development for optimisation methods of dynamic simulations
Kontakt
Dr.-Ing. Gerhard Kopp
Head of Research Area
German Aerospace Center (DLR)
Institute of Vehicle Concepts
Vehicle Architectures and Lightweight Design Concepts
