Abstract:
"Optimization of Draw-In for an Automotive Sheet Metal Part an Evaluation Using Surrogate Models and Response Surfaces"
This paper presents an optimization study for calibrating the draw-in in automotive sheet metal forming processes using a combination of Response Surface Methodology (RSM) and the Space Mapping (SM) technique. The objective is to adjust the draw bead restraining force in a finite element (FE) model to match the draw-in observed in physical try-out tools. The study employs RSM to generate an initial coarse model, which is then used in the subsequent SM iterations to efficiently guide the search for an optimal solution. By minimizing the number of expensive full-model evaluations, this approach demonstrates that space mapping is an accurate and effective method for calibrating draw-in and transforming the resulting draw bead force into the correct physical geometry.
