From Physically Knitted Models to Calibrated Digital Simulations: A Workflow Based on the Behavior and Geometry of the Knitted Tensioned Structures
Author(s)
Oghazian, Farzaneh
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Abstract
The author of this paper proposes a workflow that is developed based on the behavior and geometrical characteristics of knitted textiles. The overall goal is to enhance the implementation of knitted tensioned structures for architects and architecture students to use this material during the design process. The workflow includes eight main steps that are not necessarily in sequence: 1) Rough illustration of the overall form, 2) Developing knitting diagram for the desired shape, 3) Knitting physical models, 4) Physical form finding, 5) Digital simulation, 6) 3D scanning, 7) Overlapping form found and 3D scanned meshes, and 8) Calibrating digital model. The output of this process would be a tuned digital mesh that could be used as an input for further structural analysis, such as external wind/snow loads.
Additionally, the author highlights the different architectural form development strategies using knitted textiles. The emphasis is on understanding knitted textiles characteristics through making and elaborating the methods to input material behavior and geometry into digital simulations. The digital model is then calibrated using optimization methods to approximate its physical counterpart. Knitted textiles are new architectural materials that offer potential such as flexibility and seamless 3D knitting. Such characteristics allow for the development of more complex shapes, however, making predicting the behavior and shape of these materials more challenging. In general, there is a spectrum of possibilities to develop an architectural form using knitted textiles. At one extreme, one can knit a planar shape using stretchy yarns or knit patterns. At the other end, a final shape can be knitted to the exact desired form with non-stretchy yarns and patterns. Nevertheless, there are some other possibilities in between. A form can be knitted in a rough, simplified, and semi-3D shape, and then by implementing external forces, the final shape will emerge. Form development with simplified knitted shapes is the focus of this research. The author will explore the methods to correlate physical modeling with digital simulations of tensioned knitted textile structures by making samples and digitally simulating the models.
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Date
2023-03
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