Numerical Simulation of Automotive Collision using Clustered Parallel Computers
Kong Fanzhong, Zhang Jinhuan, Wang Dazhi, Huang Shilin
State Key Lab of Automotive Safety and Energy, Tsinghua University
[Abstract] With large deformation, the behavior of impact-contact computation presents geometric non-linearity, material non-linearity and boundary condition non-linearity such as automotive collision. Because of its complexity, numerical simulation of automotive collision is very time-consuming. So it is very difficult to obtain satisfactory computational accuracy and efficiency without supper-computers. In order to fulfill the needs for computational speed and capacities, which is incurred in automotive collision computing, a low-cost and high-performance clustered parallel computers platform has been set up based on the Redhat-Linux system and MPI parallel platform through the 100M Ethernet. Numerical example for a minibus indicates that the clustered parallel computers platform has a very high computational parallel efficiency and supplies a very good computational condition for the research on automotive crashworthiness.
Key words: clustered parallel computers parallel computation automotive crashworthiness large-scale impact-contact the finite element method
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