Multi-objective optimisation of deployable bistable scissor structures
| Autor: | N. De Temmerman, Thierry Massart, Liesbeth I.W. Arnouts, Peter Berke |
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| Přispěvatelé: | Architectural Engineering, Faculty of Engineering, Mechanics of Materials and Constructions |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Deployable structures
deployable structures Bistability Computer science Scissor structures 0211 other engineering and technologies Phase (waves) Structure (category theory) Evolutionary algorithm multi-objective optimisation Structural engineering bistable structures 020101 civil engineering 02 engineering and technology Non-linear computational mechanics Sciences de l'ingénieur Evolutionary algorithms 0201 civil engineering non-linear computational mechanics Control theory 021105 building & construction Multi-objective optimisation Déformation rupture matériaux Civil and Structural Engineering Bistable structures Building and Construction Stabilité des constructions [construction génie civil] structural engineering Transformation (function) Control and Systems Engineering Structural stability Evolutionary Algorithms State (computer science) Stabilité des constructions [construction de bâtiments] Beam (structure) |
| Zdroj: | Automation in construction, 114 (C |
| Popis: | Lightweight bistable deployable structures can be designed to be transportable and reusable. They instantaneously achieve some structural stability when transformed from the compact to the deployed state through a controlled snap-through, as a result of intended geometric incompatibilities between the beams. Due to their transformable bistable nature their design requires assessing both their non-linear transformation behaviour, as well as their service state in the deployed configuration. The requirement of a low peak force during transformation can be shown to oppose the high stiffness requirement in the deployed state; their design can therefore be formulated as amulti-objective non-linear optimisation problem. In this contribution, a size and shape optimisation method is elaborated by choosing the best material combinations, the optimal geometry of the structure and beam crosssections. The originality of this contribution is the use of a multi-objective evolutionary algorithm to structurally optimise bistable scissor structures taking into account the deployed state as well as the transformation phase. First, the method is applied to optimise a single bistable scissor module. Next, a multi-module bistable scissor structure is optimised and the single module and full structure based approaches are critically compared. info:eu-repo/semantics/published |
| Databáze: | OpenAIRE |
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