Integration of PGD-virtual charts into an engineering design process
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This article deals with the efficient construction of approximations of fields and quantities of interest used in geometric optimisation of complex shapes that can be encountered in engineering structures. The strategy, which is developed herein, is based on the construction of virtual charts that allow, once computed offline, to optimise the structure for a negligible online CPU cost. These virtual charts can be used as a powerful numerical decision support tool during the design of industrial structures. They are built using the proper generalized decomposition (PGD) that offers a very convenient framework to solve parametrised problems. In this paper, particular attention has been paid to the integration of the procedure into a genuine engineering design process. In particular, a dedicated methodology is proposed to interface the PGD approach with commercial software.
KeywordsModel reduction PGD Geometric parameters Virtual chart Shape optimisation
This work was carried out in collaboration with Alain Bergerot from AIRBUS Defence & Space. We would like to thank SAMTECH (SIEMENS Company) for their help and availability so as to interface the method developed with SAMCEF.
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