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IASS-SLTE Symposium 2014: Shells, Membranes and Spatial Structures: Footprints


IASS Symposium 2014

SESSION: Hangai Prize Presentations

Form finding and optimization: getting the best of both worlds to design lightweight structures

< Table of Contents for Hangai Prize Presentations
  • Proceedings Name: IASS-SLTE Symposium 2014: Shells, Membranes and Spatial Structures: Footprints
  • ISSN: (Electronic Version) 2518-6582
  • Session: Hangai Prize Presentations
  • Title: Form finding and optimization: getting the best of both worlds to design lightweight structures
  • Author(s): Benoît DESCAMPS, Rajan FILOMENO COELHO
  • Keywords: lightweight structure, form finding, structural optimization, layout optimization, force density
Abstract
This paper proposes a practical computational method for shaping lightweight structures made of discrete components. Previously proposed methods for designing such structures either focus on finding an equilibrated form, or are generally restricted to relatively small optimization applications. In this work, the complementary concepts of form finding and optimization are merged within a unified formulation: the general design problem is stated via discrete layout optimization while the force density equations are used to govern the equilibrium. The resulting formulation can address designs of lightweight structures including thousands of design settings and project-specific constraints. Three challenging real-world applications illustrate the capabilities of the proposed method.

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