期刊
COMPUTATIONAL MECHANICS
卷 57, 期 4, 页码 637-651出版社
SPRINGER
DOI: 10.1007/s00466-015-1246-y
关键词
Model reduction; PGD; Geometric parameters; Virtual chart; Shape optimisation
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.
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