Abstract:
This paper presents a shape optimization strategy for automotive instrument panel components using LS-OPT and LS-DYNA, supported by parametric preprocessing through TrueGrid®. Focusing on crashworthiness, the study explores an 11-variable design space encompassing both geometric and material parameters to minimize occupant knee forces during frontal impact. The process demonstrates how parametric modeling enables detailed geometric control of critical components—such as brackets and knee bolsters—allowing adaptive changes in gauge, flange widths, and hole shapes. LS-OPT automates simulation runs and distributed computing enables efficient parallel processing of the design space, significantly reducing turnaround time and computational cost. The results show a 30% reduction in peak knee forces through shape optimization and validate the feasibility of using parametric finite element modeling in distributed environments for high-fidelity crash simulations.
