doi: 10.1016/S0045-7825(99)00358-8

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==Abstract==

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The present paper proposes a new technique for the de®nition of the shape design variables in 2D and 3D optimisation problems. It

can be applied to the discrete model of the analysed structure or to the original geometry without any previous knowledge of the

analytical expression of the CAD de®ning surfaces. The proposed technique allows the surface continuity to be preserved during the

geometry modi®cation process to be de®ned a priori. This capability allows for the de®nition of shape variables suitable for every kind

of discipline involved in the optimisation process (structural analysis, ¯uid-dynamic analysis, crash analysis, aerodynamic analysis,

etc.)

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<pdf>Media:Draft_Samper_309172845_9378_1-s2.0-S0045782599003588.pdf</pdf>

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