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Letteratura scientifica selezionata sul tema "Computational fabrication"

Autore: Grafiati

Pubblicato: 12 ottobre 2024

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Articoli di riviste sul tema "Computational fabrication"

Benes, Bedrich, David J. Kasik, Wilmot Li e Hao Zhang. "Computational Design and Fabrication". IEEE Computer Graphics and Applications 37, n. 3 (maggio 2017): 32–33. http://dx.doi.org/10.1109/mcg.2017.50.

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Zhu, Amy, Yuxuan Mei, Benjamin Jones, Zachary Tatlock e Adriana Schulz. "Computational Illusion Knitting". ACM Transactions on Graphics 43, n. 4 (19 luglio 2024): 1–13. http://dx.doi.org/10.1145/3658231.

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Illusion-knit fabrics reveal distinct patterns or images depending on the viewing angle. Artists have manually achieved this effect by exploiting "microgeometry," i.e., small differences in stitch heights. However, past work in computational 3D knitting does not model or exploit designs based on stitch height variation. This paper establishes a foundation for exploring illusion knitting in the context of computational design and fabrication. We observe that the design space is highly constrained, elucidate these constraints, and derive strategies for developing effective, machine-knittable illusion patterns. We partially automate these strategies in a new interactive design tool that reduces difficult patterning tasks to familiar image editing tasks. Illusion patterns also uncover new fabrication challenges regarding mixed colorwork and texture; we describe new algorithms for mitigating fabrication failures and ensuring high-quality knit results.

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Wang, L., e E. Whiting. "Buoyancy Optimization for Computational Fabrication". Computer Graphics Forum 35, n. 2 (maggio 2016): 49–58. http://dx.doi.org/10.1111/cgf.12810.

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Al-Rifaie, Hasan, Nejc Novak, Matej Vesenjak, Zoran Ren e Wojciech Sumelka. "Fabrication and Mechanical Testing of the Uniaxial Graded Auxetic Damper". Materials 15, n. 1 (5 gennaio 2022): 387. http://dx.doi.org/10.3390/ma15010387.

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Auxetic structures can be used as protective sacrificial solutions for impact protection with lightweight and excellent energy-dissipation characteristics. A recently published and patented shock-absorbing system, namely, Uniaxial Graded Auxetic Damper (UGAD), proved its efficiency through comprehensive analytical and computational analyses. However, the authors highlighted the necessity for experimental testing of this new damper. Hence, this paper aimed to fabricate the UGAD using a cost-effective method and determine its load–deformation properties and energy-absorption potential experimentally and computationally. The geometry of the UGAD, fabrication technique, experimental setup, and computational model are presented. A series of dog-bone samples were tested to determine the exact properties of aluminium alloy (AW-5754, T-111). A simplified (elastic, plastic with strain hardening) material model was proposed and validated for use in future computational simulations. Results showed that deformation pattern, progressive collapse, and force–displacement relationships of the manufactured UGAD are in excellent agreement with the computational predictions, thus validating the proposed computational and material models.

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Noel, Vernelle AA, Yana Boeva e Hayri Dortdivanlioglu. "The question of access: Toward an equitable future of computational design". International Journal of Architectural Computing 19, n. 4 (9 novembre 2021): 496–511. http://dx.doi.org/10.1177/14780771211025311.

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Digital fabrication and its cultivated spaces promise to break disciplinary boundaries and enable access to its technologies and computation for the broader public. This paper examines the trope of “access” in digital fabrication, design, and craft, and illustrates how it unfolds in these spaces and practices. An equitable future is one that builds on and creates space for multiple bodies, knowledges, and skills; allows perceptual interaction and corporeal engagement with people, materials, and tools; and employs technologies accessible to broad groups of society. By conducting comparative and transnational ethnographic studies at digital fabrication and crafting sites, and performing craft-centered computational design studies, we offer a critical description of what access looks like in an equitable future that includes digital fabrication. The study highlights the need to examine universal conceptions and study how they are operationalized in broader narratives and design pedagogy traditions.

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Miodragovic Vella, Irina, e Sladjana Markovic. "Topological Interlocking Assembly: Introduction to Computational Architecture". Applied Sciences 14, n. 15 (23 luglio 2024): 6409. http://dx.doi.org/10.3390/app14156409.

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Topological interlocking assembly (TIA) and computational architecture treat form as an emergent property of a material system, where the final shape results from the interplay of geometries and geometric interdependencies influenced by contextual constraints (material, structure, and fabrication). This paper posits that TIA is an ideal pedagogical tool for introducing students to computational architecture, and its theoretical foundations and design principles. Specifically, defining TIA as a material system provides a robust educational approach for engaging students with computation; fostering design processes through bottom-up, hands-on investigations; expressing design intents as procedural logic; understanding generative geometric rules; and exploring the flexibility of parametric variations. The methodology is detailed and illustrated through a design workshop and study unit from the Bachelor’s and Master’s programs at the Faculty for the Built Environment, University of Malta. Four case studies of TIA—of tetrahedra, cones, octahedra, and osteomorphic blocks—demonstrate how these exercises introduce students to computational thinking, parametric design, and fabrication techniques. This paper discusses the advantages and limitations of this pedagogical methodology, concluding that integrating computational architecture in education shifts students’ design processes to investigation and innovation-based approaches, enabling them to address contemporary design challenges through context-driven solutions.

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Santos, Ana, Yongjun Jang, Inwoo Son, Jongseong Kim e Yongdoo Park. "Recapitulating Cardiac Structure and Function In Vitro from Simple to Complex Engineering". Micromachines 12, n. 4 (1 aprile 2021): 386. http://dx.doi.org/10.3390/mi12040386.

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Cardiac tissue engineering aims to generate in vivo-like functional tissue for the study of cardiac development, homeostasis, and regeneration. Since the heart is composed of various types of cells and extracellular matrix with a specific microenvironment, the fabrication of cardiac tissue in vitro requires integrating technologies of cardiac cells, biomaterials, fabrication, and computational modeling to model the complexity of heart tissue. Here, we review the recent progress of engineering techniques from simple to complex for fabricating matured cardiac tissue in vitro. Advancements in cardiomyocytes, extracellular matrix, geometry, and computational modeling will be discussed based on a technology perspective and their use for preparation of functional cardiac tissue. Since the heart is a very complex system at multiscale levels, an understanding of each technique and their interactions would be highly beneficial to the development of a fully functional heart in cardiac tissue engineering.

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Jiang, Caigui, Hui Wang, Victor Ceballos Inza, Felix Dellinger, Florian Rist, Johannes Wallner e Helmut Pottmann. "Using isometries for computational design and fabrication". ACM Transactions on Graphics 40, n. 4 (agosto 2021): 1–12. http://dx.doi.org/10.1145/3476576.3476586.

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Wagner, Hans Jakob, Martin Alvarez, Abel Groenewolt e Achim Menges. "Towards digital automation flexibility in large-scale timber construction: integrative robotic prefabrication and co-design of the BUGA Wood Pavilion". Construction Robotics 4, n. 3-4 (3 novembre 2020): 187–204. http://dx.doi.org/10.1007/s41693-020-00038-5.

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AbstractThis paper discusses the digital automation workflows and co-design methods that made possible the comprehensive robotic prefabrication of the BUGA Wood Pavilion—a large-scale production case study of robotic timber construction. Latest research in architectural robotics often focuses on the advancement of singular aspects of integrated digital fabrication and computational design techniques. Few researchers discuss how a multitude of different robotic processes can come together into seamless, collaborative robotic fabrication workflows and how a high level of interaction within larger teams of computational design and robotic fabrication experts can be achieved. It will be increasingly important to discuss suitable methods for the management of robotics and computational design in construction for the successful implementation of robotic fabrication systems in the context of the industry. We present here how a co-design approach enabled the organization of computational design decisions in reciprocal feedback with the fabrication planning, simulation and robotic code generation. We demonstrate how this approach can implement direct and curated reciprocal feedback between all planning domains—paving the way for fast-paced integrative project development. Furthermore, we discuss how the modularization of computational routines simplify the management and computational control of complex robotic construction efforts on a per-project basis and open the door for the flexible reutilization of developed digital technologies across projects and building systems.

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Tesi sul tema "Computational fabrication"

Araya, Goldberg Sergio. "Parametric constructs : computational designs for digital fabrication". Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/35505.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Architecture, 2006.
Includes bibliographical references (leaves 150-152).
This thesis explores strategies for building design toolchains in order to design, develop and fabricate architectural forms. The hipothesys of this research is that by embedding ruled based procedures addressing generative, variational, iterative, and fabricational logics, into early phases of form finding or form research process, it is possible to enhance and augment the repertoire of possible design methods yet facilitating the development and fabrication of such designs. Shape computing, parametric modeling, scripting, and digital fabrication are the tools chained in the research presented in this thesis. Complex curved forms were chosen in the different case studies to exemplify the advantages of this method in designing and fabricating this complex shapes which have proven to be particularly difficult to construct by traditional methods, usually requiring a reduction in complexity. The method proposed here allows the designer to maintain certain level of complexity and yet explore better and more appropriate solutions.
by Sergio Araya Goldberg.
S.M.

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Koo, B. "Computational fabrication guided by function and material usage". Thesis, University College London (University of London), 2016. http://discovery.ucl.ac.uk/1508186/.

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This thesis introduces novel computational design paradigms for digital fabrication guided by function and material usage. With these approaches, the users can design prototypes of mechanical objects by specifying high-level functions of the objects, instead of manipulating low-level geometric details. These methods also provide the users with design suggestions which minimise material wastage during the design process. The benefit of these approaches is that the users can focus on the exploration of the design space without worrying about the realisability of the design or efficient material usage. The shallow exploration of the design space due to the lack of guidance of the users in terms of function and material usage has been one of the most critical obstacles to achieving good designs using existing design tools. We verify this hypothesis by designing and fabricating a variety of objects using our computational tools. The main contributions of the thesis are (i) clearly defined sets of constraints regarding function and material usage in the design and fabrication process, (ii) novel optimisation methods for generating designs subject to the constraints and (iii) computational tools which guide the users to design objects that satisfy the constraints.

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Freire, Marco. "Layout problems under topological constraints for computational fabrication". Electronic Thesis or Diss., Université de Lorraine, 2024. http://www.theses.fr/2024LORR0073.

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Les problèmes d'agencement surviennent dans de nombreux contextes en ingénierie et en informatique. Typiquement, la résolution d'un problème d'agencement consiste en l'organisation spatiale et l'interconnexion d'un ensemble d'éléments dans un espace. Cet espace et ces interconnexions peuvent être de complexité très variable. Un ensemble de contraintes et d'objectifs complémentent la description du problème, tels que minimiser la longueur ou la surface des interconnexions, ou fixer la position de certains éléments. La planification des étages en architecture, de niveaux de jeux vidéo, l'agencement d'installations industrielles ou de circuits électroniques, sont tous des exemples de problèmes d'agencement. Les contraintes topologiques jouent un rôle important dans l'agencement. La topologie considère des objets définis par les voisinages de leurs éléments, sans s'attarder sur leur géométrie spécifique. Par exemple, un graphe est une entité topologique, constituée uniquement des liens entre ses nœuds. Au contraire, dessiner un graphe est une opération géométrique, puisqu'elle demande de spécifier la position des nœuds. Cette thèse se focalise sur la résolution de deux problèmes d'agencement spécifiques liés à la fabrication et la conception computationnelles sujets à des contraintes topologiques. Plus particulièrement, il s'agit de la génération d'agencements de circuits électroniques et la génération de supports pour l'impression 3D. La première contribution est un système pour la conception d'écrans surfaciques constitués de DEL RVB à travers l'utilisation de circuits imprimés pliables. Nous plions les circuits imprimés traditionnels en utilisant des motifs de découpe localisés, créant ainsi des `charnières' dans la plaque. Le système prend en entrée un maillage basse-résolution et produit des plans pouvant être envoyés à des services en ligne de fabrication de circuits. Suite à la fabrication, l'écran est assemblé en pliant le circuit sur une impression 3D du maillage d'origine. Les écrans fabriqués peuvent être contrôlés à travers une interface similaire à des shaders pour créer des effets lumineux impressionnants. Le problème global est découpé en sous-problèmes locaux grâce à la topologie chaînée du circuit, les plans finaux étant obtenus en `recousant' les solutions aux sous-problèmes. Au lieu de suivre la méthode traditionnelle d'agencement électronique (concevoir le schéma électrique, placer et connecter les composants); nous décidons du nombre de composants, leur placement et leur routage séparément pour chaque triangle au moment-même de la génération. La deuxième contribution est un algorithme procédural pour la génération de supports pour l'impression 3D sous forme d'échafaudages. Ces supports s'impriment de manière fiable et sont stables [DHL14]. L'algorithme précédent ne considère pas les intersections entre les supports et l'objet imprimé, laissant des marques indésirables sur la surface de l'objet. De plus, la complexité de l'algorithme dépend du nombre de points à porter. Nous proposons un nouvel algorithme inspiré du emph{Model Synthesis} (MS) [Mer09]. Il évite implicitement les intersections et sa complexité est indépendante du nombre de points à porter. Les supports sont représentés indirectement à travers un ensemble d'étiquettes, chacune représentant une partie de la structure (par exemple une partie de pilier, de pont, ou une jonction); et un ensemble de contraintes d'adjacence déterminant quelles combinaisons d'étiquettes sont possibles dans toutes les directions. Les supports sont générés de haut en bas en attribuant de façon répétée une étiquette à un voxel, puis en propageant les contraintes afin d'éliminer les étiquettes rendues impossibles. Cet algorithme, les contraintes d'adjacences et les heuristiques utilisées sont conçues ensemble pour générer des supports sans essai-erreur ou retours arrière, typiques du MS et autres méthodes similaires
Layout problems appear in many areas of engineering and computer science. Typically, a layout problem requires to spatially arrange and interconnect a number of geometric elements in a domain. The elements can have a fixed or variable size, as well as an arbitrary shape. The domain may be be a volume, a planar region or a surface. It may be fixed or allowed to reshape. The interconnections may be simple paths, shared contact regions, or both. A set of constraints and objectives complement the problem definition, such as minimizing interconnection length, fixed positions for some elements, and many others. Layout problems are ubiquitous: floorplanning in architectural design, video game level design, industrial facility layout planning, electronics physical layout design, and so on. Topological constraints often arise in layout problems. Topology considers objects as defined by their elements' neighborhoods, without consideration for their specific geometry of placement. For example, a graph is a purely topological structure, consisting only of the relationships between its nodes. On the other hand, a graph drawing needs to specify the position of its nodes, i.e. the geometry of the graph. This thesis focuses on tackling two specific layout problems subject to topological constraints arising in computational design and fabrication. These are electronic circuit physical layout generation and 3D printing support generation. The first contribution is an entire system for the design of freeform RGB LED displays through bendable circuit boards. Typical rigid PCBs are made to bend by strategically using kerfing, i.e. cutting patterns into the board to create `hinges' where it needs to fold. The system takes a low-poly mesh as an input and outputs fabrication-ready blueprints, that can be sent to any online PCB manufacturer. After fabrication, the display is obtained by folding the circuit over the 3D printed mesh. The LEDs are commonly found on commercially available LED strips and are easy to control. Thus, the display can be used through a programmable interface to generate impressive lighting effects in real time. The global layout problem is decomposed into local per-triangle sub-problems by exploiting the chain topology of the electronic circuit, the final layout being obtained by stitching the local solutions. Instead of traditionally following the physical design pipeline, i.e. schematics design, component placement and routing; we decide the number of components, their placement and their routing per-triangle on the fly. The second contribution is a procedural algorithm for generating bridges-and-pillars supports for 3D printing. These supports have been shown to print reliably and in a stable manner in [DHL14]. Unfortunately, the previous algorithm struggles to generate supports that do not intersect the object, leaving visible scars on its surface after support removal. Additionally, its complexity scales with the number of points to support. We propose an algorithm based on emph{Model Synthesis} (MS) [Mer09] to generate these supports, with an implicit knowledge of object avoidance and a complexity independent of the number of points to support. Our algorithm works on a voxelized representation of the object. The supports are encoded in the algorithm with a set of labels, each representing a part of the structure (e.g. a pillar block, a bridge block, a pillar-bridge junction); and a set of adjacency constraints defining all possible label combinations in every direction. The supports for an object are generated top to bottom by repeatedly assigning labels to voxels and propagating constraints to remove inconsistent labels in the domain. The algorithm, adjacency constraints and heuristics are co-designed to avoid the need for trial-and-error or backtracking, typical of MS and similar approaches

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Mohammed, Shiras Chakkungal. "Digital Detail – Computational Approaches for Multi Performative Building Skins". The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1262259520.

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Ulu, Nurcan Gecer. "Computational Design and Evaluation Methods for Empowering Non-Experts in Digital Fabrication". Research Showcase @ CMU, 2018. http://repository.cmu.edu/dissertations/1187.

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Despite the increasing availability of personal fabrication hardware and services, the true potential of digital fabrication remains unrealized due to lack of computational techniques that can support 3D shape design by nonexperts. This work develops computational methods that address two key aspects of content creation:(1) Function-driven design synthesis, (2) Design assessment. For design synthesis, a generative shape modeling algorithm that facilitates automatic geometry synthesis and user-driven modification for nonexperts is introduced. A critical observation that arises from this study is that the most geometrical specifications are dictated by functional requirements. To support design by high-level functional prescriptions, a physics based shape optimization method for compliant coupling behavior design has been developed. In line with this idea, producing complex 3D surfaces from flat 2D sheets by exploiting the concept of buckling beams has also been explored. Effective design assessment, the second key aspect, becomes critical for problems in which computational solutions do not exist. For these problems, this work proposes crowdsourcing as a way to empower non-experts in esoteric design domains that traditionally require expertise and specialized knowledge.

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Jacobs, Jennifer (Jennifer Mary). "Algorithmic craft : the synthesis of computational design, digital fabrication, and hand craft". Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/91843.

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Thesis: S.M., Massachusetts Institute of Technology, School of Architecture and Planning, Program in Media Arts and Sciences, 2013.
49
Title as it appears in the MIT degrees awarded booklet, September 18, 2013: Algorithmic craft: tools and practices for creating useful and decorative objects with code Cataloged from PDF version of thesis.
Includes bibliographical references (pages 129-131).
Programing is a singular creative tool with the potential to support personal expression. Unfortunately, many people who are new to programing view it as a highly specialized, difficult and inaccessible skill that is only relevant for career paths in science, engineering, or business fields. Despite this perception, programing enables novel forms of creative expression and communication in the medium of computation. Visual and physical art, craft, and design are interrelated domains that offer exciting possibilities when extended by computation. By forging strong connections between the skill of programming and the construction of personally relevant physical objects, it may be possible to foster meaningful creative experiences in computation and making for non-professionals. The combination of computational design, digital fabrication, and hand craft to create functional artifacts offers an opportunity to make programing compelling for people with an interest in craft sensitive forms of making. I define the synthesis of these fields with the term algorithmic craft. This thesis describes my work in developing a set of software tools that attempt to make the practice of algorithmic craft accessible for novice programers. Through it, I describe the design of each tool and discuss my experiences in engaging people in the creation of objects that are imagined by the mind, designed with programming, formed by machines, and shaped by hand.
by Jennifer Jacobs.
S.M.

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Juknevicius, Vilius. "Digital Design and Fabrication within Technical and Economical Limitations". Thesis, KTH, Arkitektur, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-181318.

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Today, designing in digital environment is far less limiting than the physical reality that the product will end up in - stresses and forces, physical material properties, manufacturing possibilities, economic considerations and etc. are to a large extent not present in digital design tools. With many of these being directly computable it would make sense to introduce these restrictions from the physical world to the digital design environment. By doing this with we could take account of the inevitable restrictions from the very initial design phases and considerations, hopefully enabling us to make better informed decisions and designs.
Idag, designar i digitala miljön är betydligt mindre begränsande än den fysiska verkligheten att produkten kommer att hamna i - spänningar och krafter, fysikaliska materialegenskaper, tillverkningsmöjligheter, ekonomiska överväganden och etc. är i stor utsträckning inte finns i digitala designverktyg. Med många av dessa är direkt beräkningsbar det skulle vara meningsfullt att införa dessa restriktioner från den fysiska världen till den digitala designmiljö. Genom att göra detta med vi kunde ta hänsyn till de oundvikliga begränsningar från mycket ursprungliga utformning och överväganden, förhoppningsvis gör det möjligt för oss att fatta bättre underbyggda beslut och designer.

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Di, Giacinto Barabaschi Giada. "Design and Fabrication of Cell-laden Gelatin Methacrylated Hydrogel Scaffold for Improving Biotransportation". Thesis, The University of Sydney, 2015. http://hdl.handle.net/2123/14422.

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One of the main goals of Tissue Engineering (TE), which has been developed rapidly over the recent years, is to re-create organs or tissues in vitro or in vivo with mimicked the anatomy and functions of body systems. Nowadays, replacing damaged tissues or organs has been a main focus in this field for addressing a significant shortage of donor tissues. Vascularisation plays a crucial role in supplying cells and tissue with essential oxygen and nutrients and removing waste products from the engineered tissue constructs. Any issue in nutrient perfusion and mass transport could significantly restrict construct development to dimensions smaller than clinically useful size, thus limiting the ability for in vivo integration. The main objectives of this study are to develop a novel framework for computational design using topology optimisation and microfabrication of 3D scaffolds using gelatin-based hydrogels (GelMa), allowing artificial vascularisation in vitro for testing if the framework is valid through the investigation into cellular viability inside the construct. In this thesis, computational models were first generated to simulate oxygen transport through solving the diffusion equation. The diffusion models are then used to optimise scaffold topology. By means of microfabrication technologies, hydrogel-based constructs were fabricated to prototype the sophisticated scaffolds. Cellular viability study was also performed to validate computational simulations and design. The results showed a higher cellular survival rate in optimally patterned constructs than the control. In summary, the work presented here is not only technically simple and cost-effective, but also establishes an effective approach to the design and fabrication of a vascularised biodegradable and scaffold-free constructs. The proposed methodology will be of considerable implication for engineering bulk tissue constructs which require sufficient ongoing vascularization in the future.

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Lopes, Rodrigo Aranha Pereira. "Computational strategies applied to product design". Master's thesis, Universidade de Lisboa, Faculdade de Arquitetura, 2018. http://hdl.handle.net/10400.5/17993.

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Dissertação de Mestrado em Design, com a especialização em Design de Produto apresentada na Faculdade de Arquitetura da Universidade de Lisboa para obtenção do grau de Mestre.
Em diferentes ocasiões, Richard Sennett e Vilém Flusser descreveram que a prática e a teoria, a técnica e a expressão, a arte e a tecnologia, o criador e o usuário, antes compartilhavam a mesma raíz. Ao longo da história, no entanto, estes conceitos se dividiram com o design posicionado ao centro. Esta proposta de pesquisa visa, em primeiro lugar, contribuir para a diminuição desta herdada separação. Isso, por meio do uso de estratégias computacionais aplicadas ao design. O presente estudo aplicará essa abordagem ao projeto e construção de uma prancha de surfe. Um dos objetivos é desenvolver uma plataforma de codesign que permita aos usuários gerarem suas próprias pranchas de surf, por meio de modelagem algorítmica / paramétrica (Grasshopper e ShapeDiver). Um segundo aspecto considera criticamente os materiais utilizados na indústria do surf, com o objetivo de desenvolver produtos que utilizem materiais menos nocivos ao meio ambiente e com maior capacidade de controle e alteração em relação às capacidades de desempenho. Em particular, esta proposta visa desenvolver um algoritmo para gerar objetos com seus núcleos internos compostos por estruturas de papel. O objeto específico a ser gerado neste caso é uma prancha de surf.
ABSTRACT: As pointed out on different occasions by both Richard Sennett and Villém Flusser, practice and theory, technique and expression, art and technology, maker and user, once shared a common ground. Throughout history, however, they have become divided. Design stands in between. This research proposal firstly aims to contribute to the diminishing of this historical inheritance. This, by means of providing a workflow for designers with the use of computational strategies. The present study will apply this approach to the design and building of a surfboard. The goal is to develop a co-designing platform allowing users to generate their own tailor-made surfboard by means of algorithmic/parametric modeling (Grasshopper and Shapediver). A second aspect critically considers the materials used in the surf industry, with the objective of developing products using materials that are less harmful to the environment and with a greater capacity of control and alteration with regards to performance capabilities. In particular, this proposal aims to develop an algorithm that can be used to generate objects of paper structures composing their inner core. The specific object to be generated in this case, is a surfboard.
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Yoon, Chan. "Computational design, fabrication, and characterization of microarchitectured solid oxide fuel cells with improved energy efficiency". Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/41183.

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Electrodes in a solid oxide fuel cell (SOFC) must possess both adequate porosity and electronic conductivity to perform their functions in the cell. They must be porous to permit rapid mass transport of reactant and product gases and sufficiently conductive to permit efficient electron transfer. However, it is nearly impossible to simultaneously control porosity and conductivity using conventional design and fabrication techniques. In this dissertation, computational design and performance optimization of microarchitectured SOFCs is first investigated in order to achieve higher power density and thus higher efficiency than currently attainable in state-of-the-art SOFCs. This involves a coupled multiphysics simulation of mass transport, electrochemical charge transfer reaction, and current balance as a function of SOFC microarchitecture. Next, the fabrication of microarchitectured SOFCs consistent with the computational designs is addressed based on anode-supported SOFC button cells using the laser ablation technique. Finally, the performance of a fabricated SOFC unit cell is characterized and compared against the performance predicted by the computational model. The results show that the performance of microarchitectured SOFCs was improved against the baseline structure and measured experimental data were well matched to simulation results.

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Più fonti

Libri sul tema "Computational fabrication"

Saravanos, D. A. Optimal fabrication processes for unidirectional metal-matrix composites: A computational simulation. [Washington, D.C.]: NASA, 1990.

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Mönch, Lars. Production Planning and Control for Semiconductor Wafer Fabrication Facilities: Modeling, Analysis, and Systems. New York, NY: Springer New York, 2013.

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ZHOU, Hong, e Jiangchao WANG. FE Computation on Accuracy Fabrication of Ship and Offshore Structure Based on Processing Mechanics. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-4087-2.

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Proceedings of the 1st Annual ACM Symposium on Computational Fabrication. Association for Computing Machinery, 2017.

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Gray, T., N. McPherson e D. Camilleri. Control of Welding Distortion in Thin-Plate Fabrication: Design Support Exploiting Computational Simulation. Elsevier Science & Technology, 2014.

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Control of Welding Distortion in Thin-Plate Fabrication: Design Support Exploiting Computational Simulation. Elsevier Science & Technology, 2014.

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Gray, T., N. McPherson e D. Camilleri. Control of Welding Distortion in Thin-Plate Fabrication: Design Support Exploiting Computational Simulation. Elsevier Science & Technology, 2017.

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Computational Intelligence In Manufacturing Handbook. London: Taylor and Francis, 2000.

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Sun, Tongyue, Keke Li, Philip F. Yuan, Chao Yan e Hua Chai. Hybrid Intelligence: Proceedings of the 4th International Conference on Computational Design and Robotic Fabrication. Springer, 2023.

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Sun, Tongyue, Keke Li, Philip F. Yuan, Chao Yan e Hua Chai. Hybrid Intelligence: Proceedings of the 4th International Conference on Computational Design and Robotic Fabrication. Springer, 2023.

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Capitoli di libri sul tema "Computational fabrication"

Harmon, Brendan. "Fabrication". In Computational Design for Landscape Architects, 183–99. New York: Routledge, 2024. http://dx.doi.org/10.4324/9781003354376-18.

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Alima, Natalie. "InterspeciesForms". In Computational Design and Robotic Fabrication, 100–109. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-8637-6_9.

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AbstractInterspeciesForms hybridizes mycelia’s agency of growth with architectural de-sign intention in the generation of novel, crossbred designed outcomes. In order to establish a direct dialogue between architectural and mycelia agencies, robotic feedback systems are implemented to extract data from the physical and feed it in-to the digital realm. Initiating this cyclic feedback system, mycelia growth is scanned in order to computationally visualize its entangled network and agency. Based on the logic of stigmergy, computational agents trace around the organisms patterns of growth, forming entangled and complex networks. Through this unification of biological growth and computational agencies, non-indexical crossbred outcomes begin to emerge. Bringing this hybridized computational form back into the physical realm, form is 3D printed with a customized mixture of mycelium and agricultural waste. Once the geometry has been extruded, the robot, patiently waits for the mycelia to grow and react to the living extrusions. The architect then responds with a countermove by scanning this new growth and continuing the cyclic feedback system between nature-machine and architect. This procedure demonstrates form emerging in real time according to the co-creational design process and dialogue between architectural and mycelia agencies.

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Vivanco, Tomás, Juan Eduardo Ojeda e Philip Yuan. "Regression-Based Inductive Reconstruction of Shell Auxetic Structures". In Computational Design and Robotic Fabrication, 488–98. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-8637-6_42.

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AbstractThis article presents the design process for generating a shell-like structure from an activated bent auxetic surface through an inductive process based on applying deep learning algorithms to predict a numeric value of geometrical features. The process developed under the Material Intelligence Workflow applied to the development of (1) a computational simulation of the mechanical and physical behaviour of an activated auxetic surface, (2) the generation of a geometrical dataset composed of six geometric features with 3,000 values each, (3) the construction and training of a regression Deep Neuronal Network (DNN) model, (4) the prediction of the geometric feature of the auxetic surface's pattern distance, and (5) the reconstruction of a new shell based on the predicted value. This process consistently reduces the computational power and simulation time to produce digital prototypes by integrating AI-based algorithms into material computation design processes.

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Baerlecken, Daniel, Judith Reitz, Arne Künstler e Martin Manegold. "Ornate Screens – Digital Fabrication". In Computational Design Modelling, 209–16. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-23435-4_24.

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Kyratsis, Panagiotis, Anastasios Tzotzis e Athanasios Manavis. "Computational Design and Digital Fabrication". In Advances in Manufacturing Systems, 1–16. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-4466-2_1.

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Hildebrandt, Harrison, Mengxi He, Peng-An Chen, Rebeca Duque Estrada, Christoph Zechmeister e Achim Menges. "Slack Pack: Fabrication System for the Dual Robotic Winding of Spatial Fiber Structures". In Computational Design and Robotic Fabrication, 476–91. Singapore: Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-99-8405-3_40.

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AbstractAdvancements in technology are ushering in an era in architecture in which new design methods and tools are being developed that necessitate entirely new means of fabrication, and, inversely, novel innovations in fabrication require completely new ways of designing. Coreless filament winding is a contemporary fabrication method in which fiber reinforced polymers are robotically wound on frames. Even though research on the frame design has reached promising levels of adaptability and material efficiency, these frames limit fabrication flexibility and increase fabrication time and costs. This paper introduces Slack Pack, a novel fiber winding technique for the fabrication of deployable spatial structures. It eliminates the use of frames by introducing slack into the fabrication process through the controlled tensioning and un-tensioning of fibers. Slack Pack employs a cyber-physical fabrication system that combines a generative design workflow and a multi-agent robotic fabrication setup with a custom end effector. The proposed method is evaluated through a series of physical experiments and digital simulations, demonstrating its potential for the fabrication of spatial fiber structures.

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Htet Kyaw, Alexander, Lawson Spencer, Sasa Zivkovic e Leslie Lok. "Gesture Recognition for Feedback Based Mixed Reality and Robotic Fabrication: A Case Study of the UnLog Tower". In Computational Design and Robotic Fabrication, 331–45. Singapore: Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-99-8405-3_28.

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AbstractMixed Reality (MR) platforms enable users to interact with three-dimensional holographic instructions during the assembly and fabrication of highly custom and parametric architectural constructions without the necessity of two-dimensional drawings. Previous MR fabrication projects have primarily relied on digital menus and custom buttons as the interface for user interaction with the MR environment. Despite this approach being widely adopted, it is limited in its ability to allow for direct human interaction with physical objects to modify fabrication instructions within the MR environment. This research integrates user interactions with physical objects through real-time gesture recognition as input to modify, update or generate new digital information enabling reciprocal stimuli between the physical and the virtual environment. Consequently, the digital environment is generative of the user’s provided interaction with physical objects to allow seamless feedback in the fabrication process. This research investigates gesture recognition for feedback-based MR workflows for robotic fabrication, human assembly, and quality control in the construction of the UnLog Tower.

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Song, Yang, Asterios Agkathidis e Richard Koeck. "Augmented Bricks an Onsite AR Immersive Design to Fabrication Framework for Masonry Structures". In Computational Design and Robotic Fabrication, 385–95. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-8637-6_33.

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AbstractThe Augmented Bricks research project aims to develop an immersive design to fabrication framework for the assembly of masonry building components by incorporating robotic fabrication and augmented reality (AR) technologies. Our method incorporates two main phases: firstly, the design phase in which users’ gestures and interactions are being identified in AR for the immersive design and simulation process; secondly, an innovative robotic assembly phase in which users can control a robotic arm for assembly by interacting with the AR user interface (UI). Our framework is validated by the design and assembly of four brick-based columns. Our findings highlight that the proposed design to fabrication framework offers a novel, intuitive design inspiration and experience beyond the traditional design methods. It returns the task of assembling parametric structures with high-tech equipment back to the designers, allowing them to master and participate in the entire design to the fabrication process. The impact of this practice-based research will allow architects and designers to modify and construct their designs more simply and intuitively through the AR environment.

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Thoutam, Laxman Raju. "Fabrication and Characterization of Materials". In Computational Technologies in Materials Science, 1–18. Boca Raton: CRC Press, 2021. http://dx.doi.org/10.1201/9781003121954-1.

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Farr, Marcus. "Bio-digital Sand Logics: Dune Sand Material and Computational Design". In Computational Design and Robotic Fabrication, 408–17. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-8637-6_35.

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AbstractThis paper discusses the creation of a new sand-based material, performative testing, and the computational logic involved in the design of a prototypical architectural system. Dune sand is known to be an unstable material compared to river or marine sand and as a result it is not normally used for construction. Because of this, desert regions have grown a reliance upon imported materials creating massive sustainability issues due to large scale global shipping, importation and resource extraction. This research indicates there is a viable opportunity to leverage dune sand as an ongoing line of inquiry for material science and design in local desert regions. It establishes that there is very little architectural research being done in this particular area. The methodology begins with experiments in bio-material using dune sand as a compound, and then establishes a construction system based upon a manifold of experiments. Along with material investigations, the process uses a Scientific Testing Method (STM) and Hypothesis in Action (HIA) as part of the testing methodology.

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Atti di convegni sul tema "Computational fabrication"

Matusik, Wojciech, e Adriana Schulz. "Computational fabrication". In SIGGRAPH '19: Special Interest Group on Computer Graphics and Interactive Techniques Conference. New York, NY, USA: ACM, 2019. http://dx.doi.org/10.1145/3305366.3328064.

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Redman, Brian J., Amber L. Dagel, Bryan Kaehr, Charles F. LaCasse, Gabriel C. Birch, Tu-Thach Quach e Meghan A. Galiardi. "Task-Specific Computational Refractive Element via Two-Photon Additive Manufacturing". In Optical Fabrication and Testing. Washington, D.C.: OSA, 2019. http://dx.doi.org/10.1364/oft.2019.ot3a.5.

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Booij, Silvia, Indro Partosoebroto, Joseph J. M. Braat e Hedser van Brug. "Computational model for prediction of shaping with FJP and experimental validation". In Optical Fabrication and Testing. Washington, D.C.: OSA, 2002. http://dx.doi.org/10.1364/oft.2002.otub1.

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Hao, Yue, e Jyh-Ming Lien. "Computational laser forming origami of convex surfaces". In SCF '19: Symposium on Computational Fabrication. New York, NY, USA: ACM, 2019. http://dx.doi.org/10.1145/3328939.3329006.

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Edelstein, Michal, Hila Peleg, Shachar Itzhaky e Mirela Ben-Chen. "AmiGo: Computational Design of Amigurumi Crochet Patterns". In SCF '22: Symposium on Computational Fabrication. New York, NY, USA: ACM, 2022. http://dx.doi.org/10.1145/3559400.3562005.

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Lin, Richard, Rohit Ramesh, Prabal Dutta, Bjoern Hartmann e Ankur Mehta. "Hierarchical Computational Design of Board-Level Electronics". In SCF '22: Symposium on Computational Fabrication. New York, NY, USA: ACM, 2022. http://dx.doi.org/10.1145/3559400.3565588.

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Lin, Richard, Rohit Ramesh, Prabal Dutta, Bjoern Hartmann e Ankur Mehta. "Computational Support for Multiplicity in Hierarchical Electronics Design". In SCF '22: Symposium on Computational Fabrication. New York, NY, USA: ACM, 2022. http://dx.doi.org/10.1145/3559400.3561997.

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Roumen, Thijs, Bastian Kruck, Tobias Duerschmid, Tobias Nack e Patrick Baudisch. "Mobile fabrication". In SCF '17: ACM Symposium on Computational Fabrication. New York, NY, USA: ACM, 2017. http://dx.doi.org/10.1145/3083157.3096343.

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Montero, Calkin Suero. "Facilitating Computational Thinking through Digital Fabrication". In Koli Calling '18: 18th Koli Calling International Conference on Computing Education Research. New York, NY, USA: ACM, 2018. http://dx.doi.org/10.1145/3279720.3279750.

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Moore, Ella, Michael Porter, Ioannis Karamouzas e Victor Zordan. "Precision control of tensile properties in fabric for computational fabrication". In SCF '18: Symposium on Computational Fabrication. New York, NY, USA: ACM, 2018. http://dx.doi.org/10.1145/3213512.3213514.

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Rapporti di organizzazioni sul tema "Computational fabrication"

Szabo, Barna A. Mathematical and Computational Framework for Virtual Fabrication Environment for Aircraft Components. Fort Belvoir, VA: Defense Technical Information Center, marzo 2008. http://dx.doi.org/10.21236/ada483777.

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Grupp Mueller, Guenther, Hans Herfurth, Scott Dunham e Baomin Xu. Device Architecture Simplification of Laser Pattering in High-Volume Crystalline Silicon Solar Cell Fabrication using Intensive Computation for Design and Optimization. Office of Scientific and Technical Information (OSTI), novembre 2013. http://dx.doi.org/10.2172/1107723.

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