Structural Optimisation Of Deployable Scissor
Structures Using New Computational Methods
Author(s)
L. Alegria Mira, N. De Temmerman & C. Preisinger
Abstract
In architectural engineering, deployable scissor structures are generally used for
mobile and temporary applications. They are characterised by their dual
functionality as either kinematic mechanisms (during deployment) or loadbearing
skeletal structures (after deployment). It is crucial to realise that there is
a direct and mutual relationship between the geometry, the kinematics and the
structural response of the scissor system. Due to a relatively complex design
process it can be highly beneficial to evaluate these structures at a pre-design
stage in terms of their structural performance. In order to do so, new
computational methods are introduced.
Karamba is a finite element plug-in for Grasshopper, fully embedded in the
3D modelling software Rhinoceros, which calculates interactively the response
of three dimensional beam structures. The advantage of this new tool is the
compatibility with the parametric environment of Grasshopper. These software
tools are still in development, but already show their potential in terms of
geometric modelling and structural optimisation.
In this research it is shown in which way these evolving computational
methods can contribute to the design of deployable scissor structures. By using
the proposed methodology of preliminary evaluation, the scissor structures are
geometrically and structurally optimised at an early stage, thereby enhancing the
overall design process and facilitating further detailed analysis.
Keywords: deployable structures, scissor structures, parametric design,
kinematics, structural analysis, structural optimisation.
Keywords
deployable structures, scissor structures, parametric design,kinematics, structural analysis, structural optimisation.
Related Book
Other papers in this volume
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