Knitted Textile Canopies: A Rapid Generative Design Optimization Tool for Enhanced Shading Performance

Abstract This study examines a rapid generative tool for adaptable lightweight shell structures to enhance shading in outdoor spaces. Addressing the escalating impacts of climate change and the urban heat island effect, the research explores innovative approaches to optimize shading knitted textile canopies. The study focuses on hot arid regions due to the limited shading provisions used in urban spaces in these regions, investigating maximum shadow coverage, performance enhancement, and material efficiency. With cutting-edge generative design tools, the method evaluates the effectiveness of various generative design plugins, such as Octopus, Galapagos, and Biomorpher, in generating efficient shading for canopies. The findings reveal that Biomorpher outperformed other plugins, achieving the highest shadow coverage in the shortest time. The optimum design was modified on a real site at the British University in Egypt campus, with adjustments to the structure and materials. Future research should incorporate additional generative tools, particularly those assessing thermal performance and structure stability, such as Finite Element Analysis, particularly for hybrid tensile membrane structures, to further enhance urban shading solutions and their resilience.