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

PDF papers
References

Hits 1 to 20 of 192

Reformat results as: short short into frame detailed detailed into frame

_id	ijac201412305
id	ijac201412305
authors	Davis, Daniel
year	2014
title	Quantitatively Analysing Parametric Models
source	International Journal of Architectural Computing vol. 12 - no. 3, 307-320
summary	Architectural practices regularly work with parametric models, yet almost nothing is known about the general properties of these models. We do not know how large a typical model is, or how complicated, or even what the typical parametric model does. These knowledge gaps are the focus of this article, which documents the first large-scale quantitative parametric model survey. In this paper three key quantitative metrics - dimensionality, size, and cyclomatic complexity - are applied to a collection of 2002 parametric models created by 575 designers. The results show that parametric models generally exhibit a number of strong correlations, which reveal a practice of parametric modelling that has as much to do with the management of data as it does with the modelling of geometry. These findings demonstrate the utility of software engineering metrics in the description and analysis of parametric models.
series	journal
last changed	2019/05/24 09:55

_id	caadria2014_139
id	caadria2014_139
authors	Tong, Ziyu
year	2014
title	Comparison of Partitioning Methods for Estimating the Layout of Green Spaces
doi	https://doi.org/10.52842/conf.caadria.2014.873
source	Rethinking Comprehensive Design: Speculative Counterculture, Proceedings of the 19th International Conference on Computer-Aided Architectural Design Research in Asia (CAADRIA 2014) / Kyoto 14-16 May 2014, pp. 873–882
summary	The urban green space positively affects the quality of the environment and urban life. To estimate the layout of urban green spaces, especially to describe the real difference of regional properties, the influenced zone of each green space should be identified firstly. The influenced zone can be used to quantitatively analyse the difference of regional environmental quality. The identification of the influenced zones of green spaces actually is a problem of space partitioning. The study compared three methods mostly used in space partitioning. The regular grid is a most common partitioning method. It is easy to use, but cannot link the grid with green space separately. Voronoi algorithm is a constructive method which partitions the urban space based on each green. Another approach is the application of gravity models, which assumed analogies between human behaviour and Newtonian gravity laws. The gravity model could calculate the probabilities of residents to choose the green space and partition the urban space. In the comparison of these three methods, we conclude that the gravity model can take more characteristics of the green space as the calculating parameters. The gravity model is a better method to estimate the layout of urban green spaces.
keywords	Space partitioning; gravity model; Voronoi algorithm; regular grids; green space
series	CAADRIA
email
last changed	2022/06/07 07:58

_id	ecaade2024_167
id	ecaade2024_167
authors	Alammar, Ammar; Alymani, Abdulrahman; Jabi, Wassim
year	2024
title	Building Energy Efficiency Estimations with Random Forest for Single and Multi-Zones
doi	https://doi.org/10.52842/conf.ecaade.2024.2.365
source	Kontovourkis, O, Phocas, MC and Wurzer, G (eds.), Data-Driven Intelligence - Proceedings of the 42nd Conference on Education and Research in Computer Aided Architectural Design in Europe (eCAADe 2024), Nicosia, 11-13 September 2024, Volume 2, pp. 365–374
summary	Surrogate models (SM) present an opportunity for rapid assessment of a building's performance, surpassing the pace of simulation-based methods. Setting up a simulation for a single concept involves defining numerous parameters, disrupting the architect's creative flow due to extended simulation run times. Therefore, this research explores integrating building energy analysis with advanced machine learning techniques to predict heating and cooling loads (KWh/m2) for single and multi-zones in buildings. To generate the dataset, the study adopts a parametric generative workflow, building upon Chou and Bui's (2014) methodology. This dataset encompasses multiple building forms, each with unique topological connections and attributes, ensuring a thorough analysis across varied building scenarios. These scenarios undergo thermal simulation to generate data for machine learning analysis. The study primarily utilizes Random Forest (RF) as a new technique to estimate the heating and cooling loads in buildings, a critical factor in building energy efficiency. Following that, A random search approach is utilized to optimize the hyperparameters, enhancing the robustness and accuracy of the machine learning models employed later in the research. The RF algorithms demonstrate high performance in predicting heating and cooling loads (KWh/m2), contributing to enhanced building energy efficiency. The study underscores the potential of machine learning in optimizing building designs for energy efficiency.
keywords	Heating and Cooling loads, Topology, Machine learning, Random Forest
series	eCAADe
email
last changed	2024/11/17 22:05

_id	acadia14_317
id	acadia14_317
authors	Andrew, Mullenix, Ryan
year	2014
title	Digitally Designing Collaboration: Computational Approaches to Process, Practice, and Product
doi	https://doi.org/10.52842/conf.acadia.2014.317
source	ACADIA 14: Design Agency [Proceedings of the 34th Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) ISBN 9781926724478]Los Angeles 23-25 October, 2014), pp. 317-326
summary	In this paper we present recent experiences, research and thinking at NBBJ on the topic of collaboration, and how parametric models and algorithmic tools can facilitate and shape the collaboration between designers, between designers and clients, and between the end users of architecture.
keywords	Design Computation Best Practices, Collaborative Design Agency, Parametric Modeling, Architect-Client Relationships, Multi-User Parametric Modeling, Practice-based computational design research, Design Decision Making
series	ACADIA
type	Normal Paper
email
last changed	2022/06/07 07:54

_id	ecaade2014_022
id	ecaade2014_022
authors	Asterios Agkathidis and Tuba Kocaturk
year	2014
title	Deceptive Landscape Installation - Algorithmic patterning strategies for a small pavilion
doi	https://doi.org/10.52842/conf.ecaade.2014.2.071
source	Thompson, Emine Mine (ed.), Fusion - Proceedings of the 32nd eCAADe Conference - Volume 2, Department of Architecture and Built Environment, Faculty of Engineering and Environment, Newcastle upon Tyne, England, UK, 10-12 September 2014, pp. 71-79
summary	This paper reflects a collaborative, research led design project, aiming to explore the potentials offered by incorporating parametric / generative tools and performative lighting simulation software in order to design and fabricate a small pavilion for the School of Architecture. The Deceptive Landscape pavilion was designed in the framework of a masters level, research led, and collaborative design studio. During its intense 12 weeks schedule, student teams were asked to explore and apply generative / parametric tools such as Rhino and Grasshopper, in order to design and later construct a small pavilion, with a theme of their choice. In addition, each team was asked to optimise their design proposal by embedding environmental software plug-ins (e.g. DIVA for Rhino) in their design process, thereby aiming to re-inform their parametric models and set performance targets. Finally each team was expected to propose a file to factory fabrication technique, following all constrains of a limited, predetermined budget. The most convincing and consistent proposal, was then chosen for fabrication. The finalised project serves as verification of the effectiveness of the design system and teaching methods used.
wos	WOS:000361385100006
keywords	Generative design, parametric design, pavilion installation, fabrication;
series	eCAADe
email
last changed	2022/06/07 07:54

_id	caadria2014_226
id	caadria2014_226
authors	Barrios, Carlos R.
year	2014
title	Parametric Visualization and Navigation in Multidimensional Spaces
doi	https://doi.org/10.52842/conf.caadria.2014.543
source	Rethinking Comprehensive Design: Speculative Counterculture, Proceedings of the 19th International Conference on Computer-Aided Architectural Design Research in Asia (CAADRIA 2014) / Kyoto 14-16 May 2014, pp. 543–552
summary	This paper presents a visual model to increase visualization and efficiency when working with parametric models. The formalistic model allows to visually track all possible variations of parameters in a logical structure showing all design variations at once. The paper introduces background information on typical arrangements of parametric modeling instances showing their limitations; presents the formalistic model for logical arrangement in multidimensional structures showing its advantages; and discusses an example of the application of the formalistic model showing a logical arrangements of designs in a hypercube matrix.
keywords	Parametric Modeling; Parametric Design; Parametric Variations, Parametric Visualization
series	CAADRIA
email
last changed	2022/06/07 07:54

_id	caadria2014_170
id	caadria2014_170
authors	Beirão, José Nuno; André Chaszar and Ljiljana _avi_
year	2014
title	Convex- and Solid-Void Models for Analysis and Classification of Public Spaces
doi	https://doi.org/10.52842/conf.caadria.2014.253
source	Rethinking Comprehensive Design: Speculative Counterculture, Proceedings of the 19th International Conference on Computer-Aided Architectural Design Research in Asia (CAADRIA 2014) / Kyoto 14-16 May 2014, pp. 253–262
summary	In this paper a semiautomated morphological classification of urban space is addressed systematically by sorting through the volumetric shapes of public spaces represented as 3-dimensional convex and solid voids. The motivation of this approach comes from a frequent criticism of space syntax methods for lacking information on how buildings and terrain morphology influence the perception and use of public spaces in general and streets in particular. To solve this problem information on how façades relate with streets and especially information about the facades’ height should be considered essential to produce a richer and more accurate morphological analysis of street canyons and other open spaces. Parametric modelling of convex voids broadens the hitherto known concept of two-dimensional convex spaces considering surrounding facades’ height and topography as important inputs for volumetric representation of urban space. The method explores the analytic potentials of ‘convex voids’ and ‘solid voids’ in describing characteristics of open public spaces such as containment, openness, enclosure, and perceived enclosure, and using these metrics to analyse and classify urban open spaces.
keywords	Open public space; convex voids; solid voids; user-guided feature recognition
series	CAADRIA
email
last changed	2022/06/07 07:54

_id	caadria2014_207
id	caadria2014_207
authors	Beorkrem, Christopher and Charles Davis II
year	2014
title	A Primitive Parametric
doi	https://doi.org/10.52842/conf.caadria.2014.893
source	Rethinking Comprehensive Design: Speculative Counterculture, Proceedings of the 19th International Conference on Computer-Aided Architectural Design Research in Asia (CAADRIA 2014) / Kyoto 14-16 May 2014, pp. 893–902
summary	This paper describes the products of an exhibition organized by the authors that speculatively reconstructed the ‘long history’ of Architectural Biology to recover the cultural potential of biological metaphors in contemporary architecture. The extended historical timeline of the show spanned from the second half of the nineteenth century to the present. However, in contrast to previous shows that have isolated modern architects’ interests in the formalist principles of biology, this show examined the formal and cultural prerogatives of modern architects in tandem with one another. This historical framework encouraged the speculative analysis of the social and political relevance of contemporary claims, which inherently challenges the ahistorical bias of the postcritical debates that emerged in the new millennium. Widening our gaze to examine the ‘long history’ of biological metaphors in architecture enabled us to recuperate the cultural significance that biological references have accrued within the discipline of architecture. This disciplinary history promises to repair the historical amnesia that has beset contemporary architects who limit their analysis of biology to formalist principles of design. A key component of the exhibit was the conceptual pairing of the ‘primitive’ (cultural) concerns of nineteenth-century figures with the ‘parametric’ (formal) concerns of postwar and contemporary architects. Using Gottfried Semper as a representative figure for the former position, we reinterpreted the inherent cultural meaning of postwar and contemporary architectural works, including those completed by Frei Otto, Achim Menges, Lars Spuybroek, SHoP, and Evan Douglis. The material potential of this approach was expressed in the making of analytical maps, digital models, and conceptual drawings that explored the latent ‘primitive’ themes of contemporary ‘parametric’ designs.
series	CAADRIA
email
last changed	2022/06/07 07:54

_id	caadria2021_089
id	caadria2021_089
authors	Cristie, Verina, Ibrahim, Nazim and Joyce, Sam Conrad
year	2021
title	Capturing and Evaluating Parametric Design Exploration in a Collaborative Environment - A study case of versioning for parametric design
doi	https://doi.org/10.52842/conf.caadria.2021.2.131
source	A. Globa, J. van Ameijde, A. Fingrut, N. Kim, T.T.S. Lo (eds.), PROJECTIONS - Proceedings of the 26th CAADRIA Conference - Volume 2, The Chinese University of Hong Kong and Online, Hong Kong, 29 March - 1 April 2021, pp. 131-140
summary	Although parametric modelling and digital design tools have become ubiquitous in digital design, there is a limited understanding of how designers apply them in their design processes (Yu et al., 2014). This paper looks at the use of GHShot versioning tool developed by the authors (Cristie & Joyce, 2018; 2019) used to capture and track changes and progression of parametric models to understand early-stage design exploration and collaboration empirically. We introduce both development history graph-based metrics (macro-process) and parametric model and geometry change metric (micro-process) as frameworks to explore and understand the captured progression data. These metrics, applied to data collected from three cohorts of classroom collaborative design exercises, exhibited students' distinct modification patterns such as major and complex creation processes or minor parameter explorations. Finally, with the metrics' applicability as an objective language to describe the (collaborative) design process, we recommend using versioning for more data-driven insight into parametric design exploration processes.
keywords	Design exploration; parametric design; history recording; version control; collaborative design
series	CAADRIA
email
last changed	2022/06/07 07:56

_id	ecaade2014_192
id	ecaade2014_192
authors	David Stasiuk and Mette Ramsgaard Thomsen
year	2014
title	Learning to be a Vault - Implementing learning strategies for design exploration in inter-scalar systems
doi	https://doi.org/10.52842/conf.ecaade.2014.1.381
source	Thompson, Emine Mine (ed.), Fusion - Proceedings of the 32nd eCAADe Conference - Volume 1, Department of Architecture and Built Environment, Faculty of Engineering and Environment, Newcastle upon Tyne, England, UK, 10-12 September 2014, pp. 381-390
summary	Parametric design models enable the production of dynamic form, responsive material assemblies, and numerically and geometrically analytical feedback. The value potential for design produced through the procedural transformation of input parameters (or features) through algorithmic models has been repeatedly demonstrated and epistemically refined. However, despite their capacity to improve productivity and iteration, parametric models are nonetheless prone to inflexibility and reduction, both of which obscure processes of invention and discovery that are central to an effective design practice. This paper presents an experimental approach for the application of multiple, parallel computational design modelling strategies which are tested in the production of an inter-scalar model array that synthesises design intent, the simulation of material behaviours, performance-driven adaptation, and open-ended processes of discovery and categorical description. It is particularly focused on the computational potentials embedded in interdependent applications of simulation and machine learning algorithms as generative and descriptive drivers of form, performance, and architectural quality. It ultimately speculates towards an architectural design modelling method that privileges open model topologies and emergent feature production as critical operators in the generation of flexible and adaptive design solutions.
wos	WOS:000361384700038
keywords	Parametric design; computational modelling; machine learning; multi-objective optimisation; k-means clustering
series	eCAADe
email
last changed	2022/06/07 07:55

_id	ecaade2023_000
id	ecaade2023_000
authors	Dokonal, Wolfgang, Hirschberg, Urs and Wurzer, Gabriel
year	2023
title	eCAADe 2023 Digital Design Reconsidered - Volume 1
doi	https://doi.org/10.52842/conf.ecaade.2023.1.001
source	Dokonal, W, Hirschberg, U and Wurzer, G (eds.), Digital Design Reconsidered - Proceedings of the 41st Conference on Education and Research in Computer Aided Architectural Design in Europe (eCAADe 2023) - Volume 1, Graz, 20-22 September 2023, 905 p.
summary	The conference logo is a bird’s eye view of spiral stairs that join and separate – an homage to the famous double spiral staircase in Graz, a tourist attraction of this city and a must-see for any architecturally minded visitor. Carved out of limestone, the medieval construction of the original is a daring feat of masonry as well as a symbolic gesture. The design speaks of separation and reconciliation: The paths of two people that climb the double spiral stairs separate and then meet again at each platform. The relationship between architectural design and the growing digital repertoire of tools and possibilities seems to undergo similar cycles of attraction and rejection: enthusiasm about digital innovations – whether in Virtual Reality, Augmented Reality, Energy Design, Robotic Fabrication, the many Dimensions of BIM or, as right now, in AI and Machine Learning – is typically followed by a certain disillusionment and a realization that the promises were somewhat overblown. But a turn away from these digital innovations can only be temporary. In our call for papers we refer to the first and second ‘digital turns’, a term Mario Carpo coined. Yes, it’s a bit of a pun, but you could indeed see these digital turns in our logo as well. Carpo would probably agree that design and the digital have become inseparably intertwined. While they may be circling in different directions, an innovative rejoinder is always just around the corner. The theme of the conference asked participants to re-consider the relationship between Design and the Digital. The notion of a cycle is already present in the syllable “re”. Indeed, 20 years earlier, in 2003, we held an ECAADE conference in Graz simply under the title “Digital Design” and our re-using – or is it re-cycling? – the theme can be seen as the completion of one of those cycles described above: One level up, we meet again, we’ve come full circle. The question of the relationship between Design and the Digital is still in flux, still worthy of renewed consideration. There is a historical notion implicit in the theme. To reconsider something, one needs to take a step back, to look into the past as well as into the future. Indeed, at this conference we wanted to take a longer view, something not done often enough in the fast-paced world of digital technology. Carefully considering one’s past can be a source of inspiration. In fact, the double spiral stair that inspired our conference logo also inspired many architects through the ages. Konrad Wachsmann, for example, is said to have come up with his famous Grapevine assembly system based on this double spiral stair and its intricate joinery. More recently, Rem Koolhaas deemed the double spiral staircase in Graz important enough to include a detailed model of it in his “elements of architecture” exhibition at the Venice Biennale in 2014. Our interpretation of the stair is a typically digital one, you might say. First of all: it’s a rendering of a virtual model; it only exists inside a computer. Secondly, this virtual model isn’t true to the original. Instead, it does what the digital has made so easy to do: it exaggerates. Where the original has just two spiral stairs that separate and join, our model consists of countless stairs that are joined in this way. We see only a part of the model, but the stairs appear to continue in all directions. The implication is of an endless field of spiral stairs. As the 3D model was generated with a parametric script, it would be very easy to change all parameters of it – including the number of stairs that make it up. Everyone at this conference is familiar with the concept of parametric design: it makes generating models of seemingly endless amounts of connected spiral stairs really easy. Although, of course, if we’re too literal about the term ‘endless’, generating our stair model will eventually crash even the most advanced computers. We know that, too. – That's another truth about the Digital: it makes a promise of infinity, which, in the end, it can’t keep. And even if it could: what’s the point of just adding more of the same: more variations, more options, more possible ways to get lost? Doesn’t the original double spiral staircase contain all those derivatives already? Don’t we know that ‘more’ isn’t necessarily better? In the original double spiral stair the happy end is guaranteed: the lovers’ paths meet at the top as well as when they exit the building. Therefore, the stair is also colloquially known as the Busserlstiege (the kissing stair) or the Versöhnungsstiege (reconciliation stair). In our digitally enhanced version, this outcome is no longer clear: we can choose between multiple directions at each level and we risk losing sight of the one we were with. This is also emblematic of our field of research. eCAADe was founded to promote “good practice and sharing information in relation to the use of computers in research and education in architecture and related professions” (see ecaade.org). That may have seemed a straightforward proposition forty years ago, when the association was founded. A look at the breadth and depth of research topics presented and discussed at this conference (and as a consequence in this book, for which you’re reading the editorial) shows how the field has developed over these forty years. There are sessions on Digital Design Education, on Digital Fabrication, on Virtual Reality, on Virtual Heritage, on Generative Design and Machine Learning, on Digital Cities, on Simulation and Digital Twins, on BIM, on Sustainability, on Circular Design, on Design Theory and on Digital Design Experimentations. We hope you will find what you’re looking for in this book and at the conference – and maybe even more than that: surprising turns and happy encounters between Design and the Digital.
series	eCAADe
email
last changed	2023/12/10 10:49

_id	ecaade2023_001
id	ecaade2023_001
authors	Dokonal, Wolfgang, Hirschberg, Urs and Wurzer, Gabriel
year	2023
title	eCAADe 2023 Digital Design Reconsidered - Volume 2
doi	https://doi.org/10.52842/conf.ecaade.2023.2.001
source	Dokonal, W, Hirschberg, U and Wurzer, G (eds.), Digital Design Reconsidered - Proceedings of the 41st Conference on Education and Research in Computer Aided Architectural Design in Europe (eCAADe 2023) - Volume 2, Graz, 20-22 September 2023, 899 p.
summary	The conference logo is a bird’s eye view of spiral stairs that join and separate – an homage to the famous double spiral staircase in Graz, a tourist attraction of this city and a must-see for any architecturally minded visitor. Carved out of limestone, the medieval construction of the original is a daring feat of masonry as well as a symbolic gesture. The design speaks of separation and reconciliation: The paths of two people that climb the double spiral stairs separate and then meet again at each platform. The relationship between architectural design and the growing digital repertoire of tools and possibilities seems to undergo similar cycles of attraction and rejection: enthusiasm about digital innovations – whether in Virtual Reality, Augmented Reality, Energy Design, Robotic Fabrication, the many Dimensions of BIM or, as right now, in AI and Machine Learning – is typically followed by a certain disillusionment and a realization that the promises were somewhat overblown. But a turn away from these digital innovations can only be temporary. In our call for papers we refer to the first and second ‘digital turns’, a term Mario Carpo coined. Yes, it’s a bit of a pun, but you could indeed see these digital turns in our logo as well. Carpo would probably agree that design and the digital have become inseparably intertwined. While they may be circling in different directions, an innovative rejoinder is always just around the corner. The theme of the conference asked participants to re-consider the relationship between Design and the Digital. The notion of a cycle is already present in the syllable “re”. Indeed, 20 years earlier, in 2003, we held an ECAADE conference in Graz simply under the title “Digital Design” and our re-using – or is it re-cycling? – the theme can be seen as the completion of one of those cycles described above: One level up, we meet again, we’ve come full circle. The question of the relationship between Design and the Digital is still in flux, still worthy of renewed consideration. There is a historical notion implicit in the theme. To reconsider something, one needs to take a step back, to look into the past as well as into the future. Indeed, at this conference we wanted to take a longer view, something not done often enough in the fast-paced world of digital technology. Carefully considering one’s past can be a source of inspiration. In fact, the double spiral stair that inspired our conference logo also inspired many architects through the ages. Konrad Wachsmann, for example, is said to have come up with his famous Grapevine assembly system based on this double spiral stair and its intricate joinery. More recently, Rem Koolhaas deemed the double spiral staircase in Graz important enough to include a detailed model of it in his “elements of architecture” exhibition at the Venice Biennale in 2014. Our interpretation of the stair is a typically digital one, you might say. First of all: it’s a rendering of a virtual model; it only exists inside a computer. Secondly, this virtual model isn’t true to the original. Instead, it does what the digital has made so easy to do: it exaggerates. Where the original has just two spiral stairs that separate and join, our model consists of countless stairs that are joined in this way. We see only a part of the model, but the stairs appear to continue in all directions. The implication is of an endless field of spiral stairs. As the 3D model was generated with a parametric script, it would be very easy to change all parameters of it – including the number of stairs that make it up. Everyone at this conference is familiar with the concept of parametric design: it makes generating models of seemingly endless amounts of connected spiral stairs really easy. Although, of course, if we’re too literal about the term ‘endless’, generating our stair model will eventually crash even the most advanced computers. We know that, too. – That's another truth about the Digital: it makes a promise of infinity, which, in the end, it can’t keep. And even if it could: what’s the point of just adding more of the same: more variations, more options, more possible ways to get lost? Doesn’t the original double spiral staircase contain all those derivatives already? Don’t we know that ‘more’ isn’t necessarily better? In the original double spiral stair the happy end is guaranteed: the lovers’ paths meet at the top as well as when they exit the building. Therefore, the stair is also colloquially known as the Busserlstiege (the kissing stair) or the Versöhnungsstiege (reconciliation stair). In our digitally enhanced version, this outcome is no longer clear: we can choose between multiple directions at each level and we risk losing sight of the one we were with. This is also emblematic of our field of research. eCAADe was founded to promote “good practice and sharing information in relation to the use of computers in research and education in architecture and related professions” (see ecaade.org). That may have seemed a straightforward proposition forty years ago, when the association was founded. A look at the breadth and depth of research topics presented and discussed at this conference (and as a consequence in this book, for which you’re reading the editorial) shows how the field has developed over these forty years. There are sessions on Digital Design Education, on Digital Fabrication, on Virtual Reality, on Virtual Heritage, on Generative Design and Machine Learning, on Digital Cities, on Simulation and Digital Twins, on BIM, on Sustainability, on Circular Design, on Design Theory and on Digital Design Experimentations. We hope you will find what you’re looking for in this book and at the conference – and maybe even more than that: surprising turns and happy encounters between Design and the Digital.
series	eCAADe
type	normal paper
email
last changed	2024/08/29 08:36

_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	caadria2014_161
id	caadria2014_161
authors	Heydarian, Arsalan; Joao P. Carneiro,David Gerber, Burcin Becerik-Gerber, Timothy Hayes and Wendy Wood
year	2014
title	Immersive Virtual Environments: Experiments on Impacting Design and Human Building Interaction
doi	https://doi.org/10.52842/conf.caadria.2014.729
source	Rethinking Comprehensive Design: Speculative Counterculture, Proceedings of the 19th International Conference on Computer-Aided Architectural Design Research in Asia (CAADRIA 2014) / Kyoto 14-16 May 2014, pp. 729–738
summary	This research prefaces the need for engaging with endusers in early stages of design as means to achieve higher performing designs with an increased certainty for enduser satisfaction. While the architecture, engineering, and construction (AEC) community has previously used virtual reality, the primary use has been for coordination and visualization of Building Information Models (BIM). This work builds upon the value of use of virtual environments in AEC processes but asks the research question "how can we better test and measure design alternatives through the integration of immersive virtual reality into our digital and physical mock up workflows? " The work is predicated on the need for design exploration through associative parametric design models, as well as, testing and measuring design alternatives with human subjects. The paper focuses on immersive virtual environments (IVEs) and presents a literature review of the use of virtual environments for integrating enduser feedback during the design stage. In a controlled pilot experiment, the authors find that human participants perform similarly in IVE and the physical environment in everyday tasks. The participants indicated they felt a strong sense of "presence" in IVE. In the future, the authors plan on using IVE to explore the integration of multi agent systems to impact building design performance and occupant satisfaction.
keywords	Virtual Reality; Prototyping; Design Technology; Immersive Virtual Environments; Feedback
series	CAADRIA
email
last changed	2022/06/07 07:51

_id	sigradi2014_045
id	sigradi2014_045
authors	Hudson, Roland
year	2014
title	Knowledge Based Strategies for Parametric Design in Architecture
source	SIGraDi 2014 [Proceedings of the 18th Conference of the Iberoamerican Society of Digital Graphics - ISBN: 978-9974-99-655-7] Uruguay- Montevideo 12,13,14 November 2014, pp. 77-81
summary	Design professionals in the construction industry widely use the term “parametric”. Despite this there is a paucity of applied guidelines for developing parametric models. It is possible to attend workshops and learn the mechanics of a specific applications and access online repositories of ‘design patterns’, but the cognitive process of application in practice has received little recent attention. Analysis and experience of practice indicates that acquisition of new knowledge and capture of existing knowledge are the basis for all parametric tasks. This paper exposes a deeper understanding of the role of the parametric designer and proposes an applied strategic framework.
keywords	Parametric design; Design strategies; Computational thinking
series	SIGRADI
email
last changed	2016/03/10 09:53

_id	ecaade2014_184
id	ecaade2014_184
authors	José Nuno Beirão, Letícia Mendes and Gabriela Celani
year	2014
title	CItyMaker Workshop - An Urban Design Studio to experience the dynamic interaction between design exploration and data flow on density-based indicators
doi	https://doi.org/10.52842/conf.ecaade.2014.1.033
source	Thompson, Emine Mine (ed.), Fusion - Proceedings of the 32nd eCAADe Conference - Volume 1, Department of Architecture and Built Environment, Faculty of Engineering and Environment, Newcastle upon Tyne, England, UK, 10-12 September 2014, pp. 33-41
summary	This paper shows the results of a workshop on parametric urban design. A pattern based parametric urban design platform provides a common platform for urban design and analysis by linking GIS with a parametric CAD environment. Urban plans are developed by combining design patterns taken from a large set of parametric urban design patterns acknowledged as a generic urban design language. Urban plan instances are obtained through a specific composition of patterns and a specific assignment of parameters to the patterns. The models provide simultaneous analysis by confronting formal solutions with density indicators that are automatically provided by a set of density calculation patterns.
wos	WOS:000361384700002
keywords	Parametric urban design; citymaker, urban design workshop; design methodology
series	eCAADe
email
last changed	2022/06/07 07:52

_id	sigradi2014_049
id	sigradi2014_049
authors	Lima, Fernando Tadeu; José Ripper Kós
year	2014
title	Pensamento algorítmico, parametrização e urbanismo sustentável: uma avaliação de parâmetros para estratégias de projeto urbano inteligente [Algorithmic thinking, parameterization and sustainable urbanism: an assessment of parameters for intelligent urban design strategies]
source	SiGraDi 2014 [Proceedings of the 18th Conference of the Iberoamerican Society of Digital Graphics - ISBN: 978-9974-99-655-7] Uruguay - Montevideo 12 - 14 November 2014, pp. 360-364
summary	This article aims to promote the debate about the appliance of algorithmic thinking and parametric logic in the task of discussing, intervening and designing sustainable cities. More specifically, this paper will address the possibilities of developing generative systems in order to constitute digital models able to manage the various parameters that may be involved in functional, environmental and social proposition of cities. To that end, we assembled a theoretical referential about algorithmic and parametric framework, as well as new urbanism´s concepts and principles such as Transit Oriented Development, Walkability and mix of uses.
keywords	Urban Design; Algorithmic thinking; Parameterization; Sustainability
series	SIGRADI
email
last changed	2016/03/10 09:55

_id	caadria2014_102
id	caadria2014_102
authors	Lopes, João V.; Alexandra C. Paio and José P. Sousa
year	2014
title	Parametric Urban Models Based on Frei Otto’s Generative Form-Finding Processes
doi	https://doi.org/10.52842/conf.caadria.2014.595
source	Rethinking Comprehensive Design: Speculative Counterculture, Proceedings of the 19th International Conference on Computer-Aided Architectural Design Research in Asia (CAADRIA 2014) / Kyoto 14-16 May 2014, pp. 595–604
summary	Presently there is a progressive tendency to incorporate parametric design strategies in urban planning and design. Although the computational technologies that allow it are recent, fundamental theories and thinking processes behind it can be traced back to the work conducted at the Institute for Lightweight Structures (IL) in Stuttgart, between the 1960’s and 1980’s. This paper describes an experimental urban research work based on Frei Otto and Eda Schaur's thoughts on unplanned settlements, and on the form-finding experiences carried out at IL. By exploring the digital development of parametric and algorithmic interactive models, two urban design proposals were developed for a site in Porto city. Out of this experience, this paper suggests that today the act of design can benefit from a deeper understanding of the natural processes of occupation and connection.
keywords	Parametric urbanism; generative design; form-finding; Frei Otto
series	CAADRIA
email
last changed	2022/06/07 07:59

_id	sigradi2014_244
id	sigradi2014_244
authors	Manica, Carlo Rossano; Fábio Gonçalves Teixeira, Underléa Miotto Bruscato, Leonardo Barili Brandi, Osorio Schaeffer, Renan Willian Leite Pereira
year	2014
title	Processo de Fabricação Digital de Artefato para Transporte de Maças [Digital Process for Manufacturing Artifact for Apples Transport]
source	SiGraDi 2014 [Proceedings of the 18th Conference of the Iberoamerican Society of Digital Graphics - ISBN: 978-9974-99-655-7] Uruguay - Montevideo 12 - 14 November 2014, pp. 324-327
summary	This article presents the result of the activities carried out for the discipline of the program Master in Design and Technology (UFRGS), Digital Manufacturing Process as a Tool for Project. It aimed to develop a product based on digital manufacturing process. With this purpose, was designed a package for the transport of apples. In order to achieve the goal the generation of alternatives was conducted through a game and Sketch Creative Brainstorming, followed by research on the product life cycle. Subsequently, was used parametric modeling software for the package design. The use of three-dimensional modeling software Rhinoceros together with the plug-in Grasshopper allowed the construction of three-dimensional parametric models. As a result, we obtained the creation of a product that can be adapted to other fruits, avoiding rework, and run through rapid prototyping, this being a consequence of the facilities of adoption of digital fabrication.
keywords	Digital fabrication; Parametric modeling; grasshoper; Packaging; Apple
series	SIGRADI
email
last changed	2016/03/10 09:55

_id	ecaade2014_011
id	ecaade2014_011
authors	Marie Davidova
year	2014
title	Ray 2:The Material Performance of Solid Wood Based Screen
doi	https://doi.org/10.52842/conf.ecaade.2014.2.153
source	Thompson, Emine Mine (ed.), Fusion - Proceedings of the 32nd eCAADe Conference - Volume 2, Department of Architecture and Built Environment, Faculty of Engineering and Environment, Newcastle upon Tyne, England, UK, 10-12 September 2014, pp. 153-158
summary	The wood - humidity interaction of solid wood has been tested through generations on Norwegian traditional panelling. This concept has been further explored by Michael Hensel and Steffen Reichert with Achim Menges on plywood and laminates in basic research. Plywood or laminates are better programmable but they are less sustainable due to the use of glue. This research focused on predicting the performance of solid wood in tangential section which is applied to humidity-temperature responsive screen for industrial production. With the method Systems Oriented Design, the research evaluated data from material science, forestry, meteorology, biology, chemistry and the production market. Themethod was introduced by Birger Sevaldson in 2007 with the argument that the changes in our globalized world and the need for sustainability demands an increase of the complexity of the design process. (Sevaldson 2013)Several samples has been tested for its environmental interaction. The data has been integrated in parametric models that tested the overall systems. Based on the simulations, the most suitable concept has been prototyped and measured for its performance. This lead to another sampling of the material whose data are the basis for another prototype. Ray 2 is an environmental responsive screen that is airing the structure in dry weather, while closing up when the humidity level is high, not allowing the moisture inside.
wos	WOS:000361385100016
keywords	Material performance; solid wood; wood - humidity interaction
series	eCAADe
email
last changed	2022/06/07 07:59

For more results click below: