Integrating performance indicators in the production rules of shape-shifting grammars for architectural adaptive façade systems

El-Dabaa, R and Abdelmohsen, S (2023) Integrating performance indicators in the production rules of shape-shifting grammars for architectural adaptive façade systems. Architectural Engineering and Design Management, 19(4), pp. 419-437. ISSN 1745-2007

Abstract

This paper presents shape-shifting grammar as a computational method that couples the environmental impact of utilizing programable materials in adaptive façades by their design parameters. The proposed grammar relies on physical experiments in a sealed temperature chamber, associated with a digital interface and image analysis software to track motion response for our previously developed composite 'Hygromorphic Thermo-bimetal (HMTM)' that responds passively to variation in humidity or temperature. This is linked with Grasshopper to evaluate performance indicators, specifically environmental impact, and percentage of view.The significance of the proposed grammar lies in tracking, analyzing, and predicting the behavior of the programable composite, therefore allowing for an efficient process using programable materials in adaptive façade design without the need for exhaustive physical experimentation and digital simulations. The developed grammar identifies production rules that map embedded and controlled parameters of the composite configuration to a desired deflection and motion response along with its environmental impact.

Item Type: Article
Uncontrolled Keywords: hygroscopic design; performance indicators; programable materials; shape-shifting grammars; thermo-bimetals
Index terms: humidity, environmental impact, variation, configuration, experiment, performance indicator, composite, design parameter
Subjects: data collection methods, systems engineering, materials science, design constraints, environmental impact, climate science, contractual condition, performance management
Topics: Engineering Principles, Construction Materials, Design Practice, Quality Management, Research Practice, Contract Administration, Sustainability
Descriptive scope: 3 PCE

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