Abstract
The purpose of this study is to apply shape optimization tools for design of resistance welding electrodes. The numerical simulation of the welding process has been performed by a simplified FEM model implemented in COMSOL. The design process is formulated as an optimization problem where the objective is to prolong the life-time of the electrodes. Welding parameters like current, time and electrode shape parameters are selected to be the design variables while constraints are chosen to ensure a high quality of the welding. Surrogate models based on a Kriging approximation has been used in order to simplify the calculation of shape sensitivities and to generate a generic tool that can be interfaced with other simulation tools. An example numerical study shows the potential of applying optimal design techniques in this area.
Original language | English |
---|---|
Journal | Structural and Multidisciplinary Optimization |
Volume | 38 |
Issue number | 2 |
Pages (from-to) | 185-194 |
ISSN | 1615-147X |
DOIs | |
Publication status | Published - 2009 |
Keywords
- Electrode design
- Spot welding
- Kriging approximation
- Shape optimization
- Shape design
- Resistance welding