01 Fakultät Architektur und Stadtplanung

Permanent URI for this collectionhttps://elib.uni-stuttgart.de/handle/11682/2

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Author: search.filters.author.Knippers, JanSubject: search.filters.subject.620

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    Nature-inspired generation scheme for shell structures
    (2012) La Magna, Riccardo; Waimer, Frédéric; Knippers, Jan
    Although less researched and put into practice in the building environment, pure plate structures are to be observed frequently in biological structures. The 3-plate principle which is common in the morphology and growth pattern of natural systems is also found to be of a structurally optimum content when considered from a plate point of view. This is for instance the case of the sea urchin’s plate skeleton morphology, which served as biological inspiration for the recently built ICD/ITKE Research Pavilion 2011 at the University of Stuttgart. The current paper will focus on the 3-plate principle and its mechanical features, also presenting study models to analyse the structural characteristics and advantages of the principle. Along with the theoretical background, the paper will introduce the structural concept of the pavilion, as well as the analysis methods used for its design and engineering.
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    Form-finding of grid shells with continuous elastic rods
    (2011) Li, Jian-Min; Knippers, Jan
    Grid shells with continuous elastic rods have the advantages to generate curved spaces with uniform members and joints. However, finding the boundary conditions, including the grid pattern and bearing positions, which lead to a specific geometry, is not an easy task. Designers have to keep equal grid lengths, minimise the residual forces and ensure the smoothness of geometries simultaneously. In this paper, we present a new numerical method which can derive the grid pattern and bearing positions in accordance with a desired geometry. This is done by finding the least strain energy state of the elastic grid in the solution domain defined by constraints. This method can provide architects a grid pattern that satisfies all the geometrical demands. At the same time, a structure with less strain energy is favoured by engineers. This is especially important for elastic grid shells, whose structural stability is largely affected by the residual forces.
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    Toward reciprocal feedback between computational design, engineering, and fabrication to co-design coreless filament-wound structures
    (2024) Kannenberg, Fabian; Zechmeister, Christoph; Gil Pérez, Marta; Guo, Yanan; Yang, Xiliu; Forster, David; Hügle, Sebastian; Mindermann, Pascal; Abdelaal, Moataz; Balangé, Laura; Schwieger, Volker; Weiskopf, Daniel; Gresser, Götz T.; Middendorf, Peter; Bischoff, Manfred; Knippers, Jan; Menges, Achim