Cumincad : CUMINCAD Papers : Search Results

CumInCAD is a Cumulative Index about publications in Computer Aided Architectural Design
supported by the sibling associations ACADIA, CAADRIA, eCAADe, SIGraDi, ASCAAD and CAAD futures

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_id	ascaad2016_027
id	ascaad2016_027
authors	Cocho-Bermejo, Ana
year	2016
title	Time in Adaptable Architecture - Deployable emergency intelligent membrane
source	Parametricism Vs. Materialism: Evolution of Digital Technologies for Development [8th ASCAAD Conference Proceedings ISBN 978-0-9955691-0-2] London (United Kingdom) 7-8 November 2016, pp. 249-258
summary	The term "Parametricism" widespread mainly by Patrick Schumacher (Schumacher, 2008) is worthy of study. Developing the concept of Human Oriented Parametric Architecture, the need of implementing time as the lost parameter in current adaptive design techniques will be discussed. Morphogenetic processes ideas will be discussed through the principle of an adaptable membrane as a case study. A model implementing a unique Arduino[i] on the façade will control its patterns performance through an Artificial Neural Network that will understand the kind of scenario the building is in, activating a Genetic Algorithm that will optimize the insulation performance of the ETFE pillows. The system will work with a global behavior for façade pattern performance and with a local one for each pillow, giving the option of individual sun-shading control. Machine learning implementation will give the façade the possibility to learn from the efficacy of its decisions through time, eliminating the need of a general on-off behavior.
series	ASCAAD
email
last changed	2017/05/25 13:31

_id	ecaade2016_123
id	ecaade2016_123
authors	Puusepp, Renee, Cerrone, Damiano and Melioranski, Martin
year	2016
title	Synthetic Modelling of Pedestrian Movement - Tallinn case study report
doi	https://doi.org/10.52842/conf.ecaade.2016.2.473
source	Herneoja, Aulikki; Toni Österlund and Piia Markkanen (eds.), Complexity & Simplicity - Proceedings of the 34th eCAADe Conference - Volume 2, University of Oulu, Oulu, Finland, 22-26 August 2016, pp. 473-481
summary	This paper builds towards the argument that pedestrian traffic in the city can be successfully simulated with agent-based computational models if pedestrians' movement patterns are appropriately studied first. Furthermore, such simulation models, when finely calibrated and supported by onsite observations, allow planners to evaluate different urban design scenarios.We present a pilot study carried out in the centre of Tallinn, and discuss a way of how pedestrian movement simulations can be conceived. In the pilot study we recorded some 120 traces of pedestrians' movement and developed a prototype of an agent-based computational model to simulate this movement. Additionally we investigated the possibility of including solar analysis into the computational model. Already this short exercise offered us some interesting insights into how certain spatial qualities and features can drive pedestrian traffic making urban walkers to verge off the shortest routes. The pilot study was carried out in the context of the High Street project [1] for turning the centre of Tallinn into more pedestrian friendly area by redesigning urban space, calming vehicular traffic and creating new opportunities for businesses to flourish.
wos	WOS:000402064400047
keywords	agent-based model; urban analysis; pedestrian simulation; movement patterns; solar analysis
series	eCAADe
email
last changed	2022/06/07 08:00

_id	ecaade2021_203
id	ecaade2021_203
authors	Arora, Hardik, Bielski, Jessica, Eisenstadt, Viktor, Langenhan, Christoph, Ziegler, Christoph, Althoff, Klaus-Dieter and Dengel, Andreas
year	2021
title	Consistency Checker - An automatic constraint-based evaluator for housing spatial configurations
doi	https://doi.org/10.52842/conf.ecaade.2021.2.351
source	Stojakovic, V and Tepavcevic, B (eds.), Towards a new, configurable architecture - Proceedings of the 39th eCAADe Conference - Volume 2, University of Novi Sad, Novi Sad, Serbia, 8-10 September 2021, pp. 351-358
summary	The gradual rise of artificial intelligence (AI) and its increasing visibility among many research disciplines affected Computer-Aided Architectural Design (CAAD). Architectural deep learning (DL) approaches are being developed and published on a regular basis, such as retrieval (Sharma et al. 2017) or design style manipulation (Newton 2019; Silvestre et al. 2016). However, there seems to be no method to evaluate highly constrained spatial configurations for specific architectural domains (such as housing or office buildings) based on basic architectural principles and everyday practices. This paper introduces an automatic constraint-based consistency checker to evaluate the coherency of semantic spatial configurations of housing construction using a small set of design principles to evaluate our DL approaches. The consistency checker informs about the overall performance of a spatial configuration followed by whether it is open/closed and the constraints it didn't satisfy. This paper deals with the relation of spaces processed as mathematically formalized graphs contrary to existing model checking software like Solibri.
keywords	model checking, building information modeling, deep learning, data quality
series	eCAADe
email
last changed	2022/06/07 07:54

_id	acadia16_116
id	acadia16_116
authors	Davis, Daniel
year	2016
title	Evaluating Buildings with Computation and Machine Learning
doi	https://doi.org/10.52842/conf.acadia.2016.116
source	ACADIA // 2016: POSTHUMAN FRONTIERS: Data, Designers, and Cognitive Machines [Proceedings of the 36th Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) ISBN 978-0-692-77095-5] Ann Arbor 27-29 October, 2016, pp. 116-123
summary	Although computers have significantly impacted the way we design buildings, they have yet to meaningfully impact the way we evaluate buildings. In this paper we detail two case studies where computation and machine learning were used to analyze data produced by building inhabitants. We find that a building’s ‘data exhaust’ provides a rich source of information for longitudinally analyzing people’s architectural preferences. We argue that computation-driven evaluation could supplement traditional post occupancy evaluations.
keywords	spatial analytics, machine learning, post occupancy evaluation
series	ACADIA
type	paper
email
last changed	2022/06/07 07:55

_id	caadria2016_611
id	caadria2016_611
authors	Dritsas, Stylianos
year	2016
title	An Advanced Parametric Modelling Library for Architectural and Engineering Design
doi	https://doi.org/10.52842/conf.caadria.2016.611
source	Living Systems and Micro-Utopias: Towards Continuous Designing, Proceedings of the 21st International Conference on Computer-Aided Architectural Design Research in Asia (CAADRIA 2016) / Melbourne 30 March–2 April 2016, pp. 611-620
summary	This paper presents a design computation system support- ing scientific computing methods relevant to architectural and engi- neering design under the paradigm of visual programming. The objec- tive of this research work is to expand and advance the palette of methods employed in academic and professional design environments. The tools contain methods for linear algebra, non-linear solvers, net- work analysis and algorithms for classical operational research prob- lems such as cutting and packing, clustering and routing. A few dec- ades ago the idea that computing would become so pervasive in the realm of architecture and engineering as it is today was confronted with deep scepticism. The thesis of this paper is that while it may be equally implausible that such methods are relevant today it may be the next natural evolution in the direction of design computation. The cur- rent state of the presented software package is still in early alpha ver- sion and it is available online for evaluation.
keywords	Design computation; parametric modelling; visual programming
series	CAADRIA
email
last changed	2022/06/07 07:55

_id	caadria2016_693
id	caadria2016_693
authors	Fernando, Ruwan; Karine Dupre and Henry Skates
year	2016
title	Tangible User Interfaces for Teaching Building Physics: Towards continuous designing in education
doi	https://doi.org/10.52842/conf.caadria.2016.693
source	Living Systems and Micro-Utopias: Towards Continuous Designing, Proceedings of the 21st International Conference on Computer-Aided Architectural Design Research in Asia (CAADRIA 2016) / Melbourne 30 March–2 April 2016, pp. 693-702
summary	This paper follows our evaluation and research into designing tangible physical media for the purposes of teaching building physics to undergraduate architecture students. These media interfaces make use of a virtual environment to promote an understanding of the cycles, which govern architectural and urban projects (for example solar studies, the flow of heat, air and water). This project aims to create an ecology of devices which can be used by students to self-direct themselves and harbour critical making in their research methods (with the explicit intent of dissolving the barrier between design and research). The basic premise of this research, is that in light of growing student numbers, more students lacking confidence in numeracy skills as well as the desire to have self-directed or group-directed learning, tangible media has a promising role to play. There are several reasons for this optimism. The first is that a better sense of intuition is gained from an interactive model over reading notes from a lecture or textbook. The second is that tangible media engages in other modes of learning, being valuable to students who have an aptitude for kinesthetic and spatial learning over text-dominant learning.
keywords	Pedagogy; tangible user interfaces; augmented reality; internet of things; designing for teaching
series	CAADRIA
email
last changed	2022/06/07 07:50

_id	caadria2024_186
id	caadria2024_186
authors	Huang, Jingfei and Tu, Han
year	2024
title	Inconsistent Affective Reaction: Sentiment of Perception and Opinion in Urban Environments
doi	https://doi.org/10.52842/conf.caadria.2024.2.395
source	Nicole Gardner, Christiane M. Herr, Likai Wang, Hirano Toshiki, Sumbul Ahmad Khan (eds.), ACCELERATED DESIGN - Proceedings of the 29th CAADRIA Conference, Singapore, 20-26 April 2024, Volume 2, pp. 395–404
summary	The ascension of social media platforms has transformed our understanding of urban environments, giving rise to nuanced variations in sentiment reaction embedded within human perception and opinion, and challenging existing multidimensional sentiment analysis approaches in urban studies. This study presents novel methodologies for identifying and elucidating sentiment inconsistency, constructing a dataset encompassing 140,750 Baidu and Tencent Street view images to measure perceptions, and 984,024 Weibo social media text posts to measure opinions. A reaction index is developed, integrating object detection and natural language processing techniques to classify sentiment in Beijing Second Ring for 2016 and 2022. Classified sentiment reaction is analysed and visualized using regression analysis, image segmentation, and word frequency based on land-use distribution to discern underlying factors. The perception affective reaction trend map reveals a shift toward more evenly distributed positive sentiment, while the opinion affective reaction trend map shows more extreme changes. Our mismatch map indicates significant disparities between the sentiments of human perception and opinion of urban areas over the years. Changes in sentiment reactions have significant relationships with elements such as dense buildings and pedestrian presence. Our inconsistent maps present perception and opinion sentiments before and after the pandemic and offer potential explanations and directions for environmental management, in formulating strategies for urban renewal.
keywords	Urban Sentiment, Affective Reaction, Social Media, Machine Learning, Urban Data, Image Segmentation.
series	CAADRIA
email
last changed	2024/11/17 22:05

_id	ascaad2016_041
id	ascaad2016_041
authors	Kartalou, Nikolia
year	2016
title	Visualising Heritage-Memory - The paradigm of Chambers Street
source	Parametricism Vs. Materialism: Evolution of Digital Technologies for Development [8th ASCAAD Conference Proceedings ISBN 978-0-9955691-0-2] London (United Kingdom) 7-8 November 2016, pp. 399-408
summary	Aristotle in his treatise, On the Soul, defined memory as knowledge of the past, obtained through seeing, sensing, observing, listening and learning. Memory can be envisaged as the mental imprint of an image that can be recalled through the experience of existing objects and places. How is cultural heritage related to the experience and knowledge called memory? Why do memories appear to have a strong influence in unconscious spatial perception? How can visualisation techniques activate heritage-memory? Buildings, as tangible elements of the historic city, disclose the memories of the past into the present, and direct us to an experience of time through matter. Buildings serve as a link bridging the past with the present, and eventually, the future sites of memory. Their fabric is constantly altered with engraved layers of historical change, a sequence of past events which emerge from the remnants of their structure. The past, imprinted on the city’s artefacts, manifests its tangible form, and through a new reading of heritage, as ‘heritage-memory’, immaterial qualities of previous eras can perhaps be revealed. This paper, part of an ongoing research situated in between theory and practice, argues that the immaterial elements of cultural heritage emerging from historic urban spaces, can be critically explored in a new way through the use of digital technology, as a tool to revisualise the memory of a locus. Taking Chambers Street in the Old Town of Edinburgh as a site of focus, this presentation demonstrates several steps towards visualising the heritage-memory of the site. The paper poses the question of how the site might serve as a memorial itself, revealing to the observer the knowledge of past events engraved on its locus. Chambers Street serves as a paradigm of constructing a virtual narrative of heritage-memory, examining the site in parts and whole.
series	ASCAAD
email
last changed	2017/05/25 13:33

_id	ecaade2016_242
id	ecaade2016_242
authors	Kovács, Ádám Tamás and Szoboszlai, Mihály
year	2016
title	Experience in CAAD Education Using a MOOC System
doi	https://doi.org/10.52842/conf.ecaade.2016.1.269
source	Herneoja, Aulikki; Toni Österlund and Piia Markkanen (eds.), Complexity & Simplicity - Proceedings of the 34th eCAADe Conference - Volume 1, University of Oulu, Oulu, Finland, 22-26 August 2016, pp. 269-274
summary	This paper describes some of the challenges of using a Massive Open Online Course (MOOC) framework system with a variety of digital content. Situated in the 'efficiency' paradigm of digital design methods and Computer Aided Architectural Design (CAAD) education, we allow participants to set their own schedules, meet demands that are appropriate for their abilities, and determine their own path. The content within this framework motivates students through life-like tasks and examples. This paper shares our experiences in CAAD education through a course curriculum developed by applying a variety of digital content. We have focused on resolving the problem of inefficient teaching of CAAD systems by developing a blended learning curriculum.
wos	WOS:000402063700030
keywords	CAAD; education; b-learning; MOOC; curriculum analytics; mind-map
series	eCAADe
email
last changed	2022/06/07 07:51

_id	ecaade2016_038
id	ecaade2016_038
authors	Lee, Jongwook, Min, Aram and Lee, Jihyun
year	2016
title	An Intuitive Heritage Education System for Learning Architectural Structures and Styles - Focusing on the historical Korean architectures
doi	https://doi.org/10.52842/conf.ecaade.2016.2.529
source	Herneoja, Aulikki; Toni Österlund and Piia Markkanen (eds.), Complexity & Simplicity - Proceedings of the 34th eCAADe Conference - Volume 2, University of Oulu, Oulu, Finland, 22-26 August 2016, pp. 529-537
summary	Although national and international attention toward the cultural heritage is on a rise, there is a lack of public attention toward cultural heritage sites. One of the main problems is the lack of interaction and the visualization of cultural heritage on the sites. Especially Korean historical architectures are structurally complex and are not easily understood by common people. To improve the public awareness of architectural heritages, we propose a model-based diagnosis system to educate the visitors and tourists. The system is designed to guide the users to model an appropriate architecture in accordance with the era, location, and the usage. For the system, we built a robust set of cases based on the ontological structure we designed especially for architectural heritage education. It basically enables users to reconstruct buildings intuitively in six steps from bottom to top. A system evaluation was conducted on the affective, cognitive, operative aspect of the system at a heritage site. The results show well in terms of cognitive aspect but was evaluated poorly in terms of the operative aspect.
wos	WOS:000402064400053
keywords	Historical Korean architecture; JESS rule engine; heritage education system
series	eCAADe
email
last changed	2022/06/07 07:52

_id	ecaade2016_111
id	ecaade2016_111
authors	Passaro, Andrés Martin, Henriques, Gonçalo Castro and Paraizo, Rodrigo Cury
year	2016
title	Sensitive Shelters: Poetics of Interaction
doi	https://doi.org/10.52842/conf.ecaade.2016.1.537
source	Herneoja, Aulikki; Toni Österlund and Piia Markkanen (eds.), Complexity & Simplicity - Proceedings of the 34th eCAADe Conference - Volume 1, University of Oulu, Oulu, Finland, 22-26 August 2016, pp. 537-548
summary	This paper describes and reflects about a workshop activity in the field of Digital Manufacturing technologies to build responsive shelters that interact with their users and the environment. It addresses a teaching strategy intended to overcome tooling or the simple use of instruments and proposes instead to frame the production of objects using a new language, or a new operative strategy, directly linked to the production of the objects. It addresses a teaching strategy behind the workshop two main levels: first, by the development of technical skills by means of an operative action directly linked to the production of the object, and not apart from the action of making it (as in learning first and applying later). And second - and no less important -, it helped foster the maturation of critical thinking arising from the creation of a dynamic object of architecture - with moving parts and programmed to respond to its users.
wos	WOS:000402063700059
keywords	Digital Fabrication; Parametric Design; Responsive Architecture; Sensitive Shelters
series	eCAADe
email
last changed	2022/06/07 07:59

_id	caadria2016_881
id	caadria2016_881
authors	Silvestre, Joaquim; Yasushi Ikeda and Franc?ois Gue?na
year	2016
title	Artificial Imagination of Architecture with Deep Convolutional Neural Network
doi	https://doi.org/10.52842/conf.caadria.2016.881
source	Living Systems and Micro-Utopias: Towards Continuous Designing, Proceedings of the 21st International Conference on Computer-Aided Architectural Design Research in Asia (CAADRIA 2016) / Melbourne 30 March–2 April 2016, pp. 881-890
summary	This paper attempts to determine if an Artificial Intelli- gence system using deep convolutional neural network (ConvNet) will be able to “imagine” architecture. Imagining architecture by means of algorithms can be affiliated to the research field of generative archi- tecture. ConvNet makes it possible to avoid that difficulty by automat- ically extracting and classifying these rules as features from large ex- ample data. Moreover, image-base rendering algorithms can manipu- late those abstract rules encoded in the ConvNet. From these rules and without constructing a prior 3D model, these algorithms can generate perspective of an architectural image. To conclude, establishing shape grammar with this automated system opens prospects for generative architecture with image-base rendering algorithms.
keywords	Machine learning; convolutional neural network; generative design; image-based rendering
series	CAADRIA
email
last changed	2022/06/07 07:56

_id	ecaade2016_104
id	ecaade2016_104
authors	Spaeth, A. Benjamin, Dounas, Theodoros and Kieferle, Joachim
year	2016
title	Complexity and Simplicity - Tensions in teaching computation to large numbers of architecture students
doi	https://doi.org/10.52842/conf.ecaade.2016.1.229
source	Herneoja, Aulikki; Toni Österlund and Piia Markkanen (eds.), Complexity & Simplicity - Proceedings of the 34th eCAADe Conference - Volume 1, University of Oulu, Oulu, Finland, 22-26 August 2016, pp. 229-236
summary	This paper describes the challenges and approaches to introduce computational thinking to a large and diverse group of architecture students during an international workshop with 300 students from different cultural backgrounds and educational levels, also integrating a diverse group of tutors whose computational expertise varied extremely. The approach suggested articulating a design task which enforced computational thinking but enabled different levels of engagement with the computer as a tool. Hypothetically this would allow all participants to engage with the computational thinking agenda regardless their computational affinity even whilst applying analogue methods. Besides the intercultural experience the workshop was successful in exposing a large group of students and tutors to the concepts of computational design whilst accommodating different learning preferences and engagement with the computer as a device.
wos	WOS:000402063700026
keywords	Computation Education; CAAD; Large Cohorts; Computational Strategies
series	eCAADe
email
last changed	2022/06/07 07:56

_id	acadia19_392
id	acadia19_392
authors	Steinfeld, Kyle
year	2019
title	GAN Loci
doi	https://doi.org/10.52842/conf.acadia.2019.392
source	ACADIA 19:UBIQUITY AND AUTONOMY [Proceedings of the 39th Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) ISBN 978-0-578-59179-7] (The University of Texas at Austin School of Architecture, Austin, Texas 21-26 October, 2019) pp. 392-403
summary	This project applies techniques in machine learning, specifically generative adversarial networks (or GANs), to produce synthetic images intended to capture the predominant visual properties of urban places. We propose that imaging cities in this manner represents the first computational approach to documenting the Genius Loci of a city (Norberg-Schulz, 1980), which is understood to include those forms, textures, colors, and qualities of light that exemplify a particular urban location and that set it apart from similar places. Presented here are methods for the collection of urban image data, for the necessary processing and formatting of this data, and for the training of two known computational statistical models (StyleGAN (Karras et al., 2018) and Pix2Pix (Isola et al., 2016)) that identify visual patterns distinct to a given site and that reproduce these patterns to generate new images. These methods have been applied to image nine distinct urban contexts across six cities in the US and Europe, the results of which are presented here. While the product of this work is not a tool for the design of cities or building forms, but rather a method for the synthetic imaging of existing places, we nevertheless seek to situate the work in terms of computer-assisted design (CAD). In this regard, the project is demonstrative of a new approach to CAD tools. In contrast with existing tools that seek to capture the explicit intention of their user (Aish, Glynn, Sheil 2017), in applying computational statistical methods to the production of images that speak to the implicit qualities that constitute a place, this project demonstrates the unique advantages offered by such methods in capturing and expressing the tacit.
series	ACADIA
type	normal paper
email
last changed	2022/06/07 07:56

_id	ecaade2016_036
id	ecaade2016_036
authors	Varinlioglu, Guzden, Halici, Suheyla Muge and Alacam, Sema
year	2016
title	Computational Thinking and the Architectural Curriculum - Simple to Complex or Complex to Simple?
doi	https://doi.org/10.52842/conf.ecaade.2016.1.253
source	Herneoja, Aulikki; Toni Österlund and Piia Markkanen (eds.), Complexity & Simplicity - Proceedings of the 34th eCAADe Conference - Volume 1, University of Oulu, Oulu, Finland, 22-26 August 2016, pp. 253-259
summary	Recent trends in architectural education and practice have encouraged the use of computational tools and methods for solving complex design problems. Newer technology can augment the design process by applying progressively more-advanced computational tools. However, the complex nature of these tools can lead to students getting lost at the skill-building stage, they can become trapped in computational design terminology, leading to designs of limited spatial quality. This paper introduces a pilot study from Izmir University of Economics (IUE) for the integration of computational design technology in the undergraduate architectural curricula, based on a workshop series using a top-down teaching strategy.
wos	WOS:000402063700028
keywords	Basic design; learning outcomes; keyword analysis; visual scripting environment (VSE)
series	eCAADe
email
last changed	2022/06/07 07:58

_id	sigradi2016_434
id	sigradi2016_434
authors	Campos, Gisela Belluzzo de; Espíndola, Fábio
year	2016
title	Design gráfico-sonoro em projetos interativos em tecnologias livres [Graphic-sound design in interactive projects with free technologies]
source	SIGraDi 2016 [Proceedings of the 20th Conference of the Iberoamerican Society of Digital Graphics - ISBN: 978-956-7051-86-1] Argentina, Buenos Aires 9 - 11 November 2016, pp.699-703
summary	This article discusses the relationship between sound and image in design projects that use the programming language. The knowledge of these projects bring contributions to the graphic design in an expanded context in which graphic-visual messages are transmitted in different media and environments and hypermedia platform where sound participate actively such as applications for mobile devices, projections on walls, installations in augmented reality, websites and vignettes. Another issue to consider is the possibility of involvement of other players in real time or acting for the co- edition of message.
keywords	Graphic design; sound; image; free technologies
series	SIGRADI
email
last changed	2021/03/28 19:58

_id	acadia23_v1_166
id	acadia23_v1_166
authors	Chamorro Martin, Eduardo; Burry, Mark; Marengo, Mathilde
year	2023
title	High-performance Spatial Composite 3D Printing
source	ACADIA 2023: Habits of the Anthropocene: Scarcity and Abundance in a Post-Material Economy [Volume 1: Projects Catalog of the 43rd Annual Conference of the Association of Computer Aided Design in Architecture (ACADIA) ISBN 979-8-9860805-8-1]. Denver. 26-28 October 2023. edited by A. Crawford, N. Diniz, R. Beckett, J. Vanucchi, M. Swackhamer 166-171.
summary	This project explores the advantages of employing continuum material topology optimization in a 3D non-standard lattice structure through fiber additive manufacturing processes (Figure 1). Additive manufacturing (AM) has gained rapid adoption in architecture, engineering, and construction (AEC). However, existing optimization techniques often overlook the mechanical anisotropy of AM processes, resulting in suboptimal structural properties, with a focus on layer-by-layer or planar processes. Materials, processes, and techniques considering anisotropy behavior (Kwon et al. 2018) could enhance structural performance (Xie 2022). Research on 3D printing materials with high anisotropy is limited (Eichenhofer et al. 2017), but it holds potential benefits (Liu et al. 2018). Spatial lattices, such as space frames, maximize structural efficiency by enhancing flexural rigidity and load-bearing capacity using minimal material (Woods et al. 2016). From a structural design perspective, specific non-standard lattice geometries offer great potential for reducing material usage, leading to lightweight load-bearing structures (Shelton 2017). The flexibility and freedom of shape inherent to AM offers the possibility to create aggregated continuous truss-like elements with custom topologies.
series	ACADIA
type	project
email
last changed	2024/04/17 13:58

_id	cdrf2023_526
id	cdrf2023_526
authors	Eric Peterson, Bhavleen Kaur
year	2023
title	Printing Compound-Curved Sandwich Structures with Robotic Multi-Bias Additive Manufacturing
doi	https://doi.org/https://doi.org/10.1007/978-981-99-8405-3_44
source	Proceedings of the 2023 DigitalFUTURES The 5st International Conference on Computational Design and Robotic Fabrication (CDRF 2023)
summary	A research team at Florida International University Robotics and Digital Fabrication Lab has developed a novel method for 3d-printing curved open grid core sandwich structures using a thermoplastic extruder mounted on a robotic arm. This print-on-print additive manufacturing (AM) method relies on the 3d modeling software Rhinoceros and its parametric software plugin Grasshopper with Kuka-Parametric Robotic Control (Kuka-PRC) to convert NURBS surfaces into multi-bias additive manufacturing (MBAM) toolpaths. While several high-profile projects including the University of Stuttgart ICD/ITKE Research Pavilions 2014–15 and 2016–17, ETH-Digital Building Technologies project Levis Ergon Chair 2018, and 3D printed chair using Robotic Hybrid Manufacturing at Institute of Advanced Architecture of Catalonia (IAAC) 2019, have previously demonstrated the feasibility of 3d printing with either MBAM or sandwich structures, this method for printing Compound-Curved Sandwich Structures with Robotic MBAM combines these methods offering the possibility to significantly reduce the weight of spanning or cantilevered surfaces by incorporating the structural logic of open grid-core sandwiches with MBAM toolpath printing. Often built with fiber reinforced plastics (FRP), sandwich structures are a common solution for thin wall construction of compound curved surfaces that require a high strength-to-weight ratio with applications including aerospace, wind energy, marine, automotive, transportation infrastructure, architecture, furniture, and sports equipment manufacturing. Typical practices for producing sandwich structures are labor intensive, involving a multi-stage process including (1) the design and fabrication of a mould, (2) the application of a surface substrate such as FRP, (3) the manual application of a light-weight grid-core material, and (4) application of a second surface substrate to complete the sandwich. There are several shortcomings to this moulded manufacturing method that affect both the formal outcome and the manufacturing process: moulds are often costly and labor intensive to build, formal geometric freedom is limited by the minimum draft angles required for successful removal from the mould, and customization and refinement of product lines can be limited by the need for moulds. While the most common material for this construction method is FRP, our proof-of-concept experiments relied on low-cost thermoplastic using a specially configured pellet extruder. While the method proved feasible for small representative examples there remain significant challenges to the successful deployment of this manufacturing method at larger scales that can only be addressed with additional research. The digital workflow includes the following steps: (1) Create a 3D digital model of the base surface in Rhino, (2) Generate toolpaths for laminar printing in Grasshopper by converting surfaces into lists of oriented points, (3) Generate the structural grid-core using the same process, (4) Orient the robot to align in the direction of the substructure geometric planes, (5) Print the grid core using MBAM toolpaths, (6) Repeat step 1 and 2 for printing the outer surface with appropriate adjustments to the extruder orientation. During the design and printing process, we encountered several challenges including selecting geometry suitable for testing, extruder orientation, calibration of the hot end and extrusion/movement speeds, and deviation between the computer model and the physical object on the build platen. Physical models varied from their digital counterparts by several millimeters due to material deformation in the extrusion and cooling process. Real-time deviation verification studies will likely improve the workflow in future studies.
series	cdrf
email
last changed	2024/05/29 14:04

_id	ecaade2016_062
id	ecaade2016_062
authors	Erioli, Alessio
year	2016
title	Aesthetics of Decision - Unfolding the design process within a framework of complexity and self-organization
doi	https://doi.org/10.52842/conf.ecaade.2016.1.219
source	Herneoja, Aulikki; Toni Österlund and Piia Markkanen (eds.), Complexity & Simplicity - Proceedings of the 34th eCAADe Conference - Volume 1, University of Oulu, Oulu, Finland, 22-26 August 2016, pp. 219-228
summary	Complexity-grounded paradigms and self-organization based strategies promise enormous potential when channeled in a design process, but their current stage of development (while delivering groundbreaking results in recent years) hasn't significantly impacted yet the widespread architectural practice. Still, the tendency (in the development of technology and society) is clearly towards an increase in complexity and distributed intelligence, henceforth it is of primary importance to adopt a design approach that allows the harnessing of such potential and convey it in the creation of outcomes that favor a richer and heterogeneous ecological entanglement. To tap this kind of potential in an open-ended process requires a design approach that re-defines the distribution of control, choices and information throughout the whole process (including materials and fabrication processes).The paper explores the possibility of such design approach in the territory that links education and research through a series of Master Thesis developed at the University of Bologna and comparing them to other case studies developed worldwide.
wos	WOS:000402063700025
keywords	continuity; tectonics; architecture; mereology; multi-agent systems; theory; robotic fabrication; computation; simulation
series	eCAADe
email
last changed	2022/06/07 07:55

_id	acadia16_352
id	acadia16_352
authors	Farahi, Behnaz
year	2016
title	Caress of the Gaze: A Gaze Actuated 3D Printed Body Architecture
doi	https://doi.org/10.52842/conf.acadia.2016.352
source	ACADIA // 2016: POSTHUMAN FRONTIERS: Data, Designers, and Cognitive Machines [Proceedings of the 36th Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) ISBN 978-0-692-77095-5] Ann Arbor 27-29 October, 2016, pp. 352-361
summary	This paper describes the design process behind Caress of the Gaze, a project that represents a new approach to the design of a gaze-actuated, 3D printed body architecture—as a form of proto-architectural study—providing a framework for an interactive dynamic design. The design process engages with three main issues. Firstly, it aims to look at form or geometry as a means of controlling material behavior by exploring the tectonic properties of multi-material 3D printing technologies. Secondly, it addresses novel actuation systems by using Shape Memory Alloy (SMA) in order to achieve life-like behavior. Thirdly, it explores the possibility of engaging with interactive systems by investigating how our clothing could interact with other people as a primary interface, using vision-based eye-gaze tracking technologies. In so doing, this paper describes a radically alternative approach not only to the production of garments but also to the ways we interact with the world around us. Therefore, the paper addresses the emerging field of shape-changing 3D printed structures and interactive systems that bridge the worlds of robotics, architecture, technology, and design.
keywords	eye-gaze tracking, interactive design, 3d printing, smart material, programmable matter, embedded responsiveness
series	ACADIA
type	paper
email
last changed	2022/06/07 07:55

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