In car manufacturing, sustainable structural design with multiple conflicting objectives like weight reduction for less CO2 emission, strength and rigidity is essential. This research focuses on topological optimization method with which greater weight reduction is expected to be achieved. In view of the application of preference set-based design (PSD) method, topologically satisfied design is considered. We applied PSD method to the design of topological model. This study indicates the efficacy of PSD method to topological design problems including weight reduction aspect.
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