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Energies 2014, 7(8), 5201-5220;

Dialectic Form Finding of Passive and Adaptive Shading Enclosures

Department of Civil and Environmental Engineering, Princeton University, Princeton, NJ 08544, USA
School of Architecture, Princeton University, Princeton, NJ 08544, USA
Laboratoire Navier/Géométrie Structure Architecture, Ecole des Ponts ParisTech, 6/8 Avenue Blaise Pascal, Champs sur Marne, F-77455 Marne la Vallee Cedex 2, France
Author to whom correspondence should be addressed.
Received: 9 June 2014 / Revised: 17 July 2014 / Accepted: 5 August 2014 / Published: 13 August 2014
(This article belongs to the Special Issue Energy Efficient Building Design and Operation 2014)
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Form finding describes the process of finding a stable equilibrium shape for a system under a specific set of loads, for a set of boundary conditions and starting from an arbitrary initial geometry. However, form finding does not traditionally involve performance constraints such as energy-related criteria. Dialectic form finding is an extension of the process integrating energy-related design aspects. In this paper, dialectic form finding is employed as an approach for designing high performance architectural systems, driven by solar radiation control and structural efficiency. Two applications of dialectic form found shading enclosure structures, a passive and an active one, are presented. The first application example is a site-specific outdoor shading structure. The structure is based on a louver system designed to provide protection from ultraviolet radiation over a pre-defined target only when required, promoting natural lighting and ventilation. The second application example is a shape-shifting modular façade system that adapts its opacity in response to environmental fluctuations. The system can thus improve the environmental performance of a building. Moreover, the system explores elastic deformations for shape changes, reducing actuation requirements. These examples highlight the potential of the dialectic form-finding strategy for the design of high performance architectural integrated structures. View Full-Text
Keywords: shading; active; passive; form finding; numerical; physical shading; active; passive; form finding; numerical; physical

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Adriaenssens, S.; Rhode-Barbarigos, L.; Kilian, A.; Baverel, O.; Charpentier, V.; Horner, M.; Buzatu, D. Dialectic Form Finding of Passive and Adaptive Shading Enclosures. Energies 2014, 7, 5201-5220.

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