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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Hits 1 to 20 of 623

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

_id	ecaade2016_074
id	ecaade2016_074
authors	Das, Subhajit, Day, Colin, Dewberry, Michael, Toulkeridou, Varvara and Hauck, Anthony
year	2016
title	Automated Service Core Generator in Autodesk Dynamo - Embedded Design Intelligence aiding rapid generation of design options
doi	https://doi.org/10.52842/conf.ecaade.2016.2.217
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. 217-226
summary	Building design entails an intuitive and informative exploration of an architect involving iterative refinement of design ideas till client objectives, and priorities are satisfied. Similarly, service cores in a building are designed through the exploration of multifarious design options each with different performative metrics regarding accessibility, efficiency, cost, feasibility, etc. As the current process is labor-intensive, manual & dependent on the expertise of the architect, the search space leading to the selection of an optimal design alternative is very limited. This paper describes Service Core Generator (SCG) library in Autodesk Dynamo enabling automated generation of service core models for varied building shell geometry types (limited to orthogonal profiles). The tool described encodes explicit and implicit domain knowledge into the system facilitating service core models for buildings across varied scale with use type's including offices, hotels or residential buildings.
wos	WOS:000402064400021
keywords	Design Alternatives; Geometry Analysis; Parametric Modelling; Design Tools; Design Automation;
series	eCAADe
email
last changed	2022/06/07 07:55

_id	sigradi2016_815
id	sigradi2016_815
authors	Bernal, Marcelo
year	2016
title	From Parametric to Meta Modeling in Design
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.579-583
summary	This study introduces the Meta-Modeling process adopted from the Model Based System Engineering field (MBSE) to explore an approach for the generation of design alternatives beyond the restrictions of the Parametric Models that mainly produce geometric variations and have limitations in terms of topological transformations during the exploratory design tasks. The Meta-Model is the model of attributes and relationships among objects of a particular domain. It describes objects and concepts in abstract terms independent from the complexity of the geometric models and provides mapping mechanisms that facilitate the interfacing with parametric parts. The flexibility of these computer-interpretable and human-readable models can contribute to creatively manipulate the design knowledge embedded in parametric models.
keywords	Parametric Modeling; Meta-Modeling; Model Based System Engineering; Modeling Languages; Systems Integration
series	SIGRADI
email
last changed	2021/03/28 19:58

_id	ecaade2016_239
id	ecaade2016_239
authors	Janssen, Patrick, Chen, Kian Wee and Mohanty, Akshata
year	2016
title	Automated Generation of BIM Models
doi	https://doi.org/10.52842/conf.ecaade.2016.2.583
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. 583-590
summary	In early stages of architectural design, highly simplified minimal models are often preferred while in the later stages maximal Building Information Models (BIM) are required that include the relevant information for detailed design documentation. This research focuses on the transition from minimal to maximal models and proposes a semi-automated workflow that consist of two main steps: analysis and templating. The analysis step starts with the minimal geometric model and decorates this model with a set of semantic and topological attributes. The templating step starts the decorated model and generates a transitional BIM model which can then be readily altered and populated with high resolution building information. A demonstration of two test cases shows the feasibility of the approach.
wos	WOS:000402064400059
keywords	BIM; parametric modelling; interoperability
series	eCAADe
email
last changed	2022/06/07 07:52

_id	ecaade2016_241
id	ecaade2016_241
authors	Janssen, Patrick, Stouffs, Rudi, Mohanty, Akshata, Tan, Elvira and Li, Ruize
year	2016
title	Parametric Modelling with GIS
doi	https://doi.org/10.52842/conf.ecaade.2016.2.059
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. 59-68
summary	Existing urban planning and design systems and workflows do not effectively support a fast iterative design process capable of generating and evaluating large-scale urban models. One of the key issues is the lack of flexibility in workflows to support iterative design generation and performance analyses, and easily integrate into design and planning processes. We present and demonstrate a parametric modelling system, Möbius, that can easily be linked to Geographic Information Systems for creating modular workflows, provides a novel approach for visual programming that integrates associative and imperative programming styles, uses a rich topological data structure that allows custom data attributes to be added to geometric entities at any topological level, and is fully web-based. The demonstration consists of five main stages that alternate between QGIS and Möbius, generating and analysing an urban model reflecting on site conditions and using a library of parametric urban typologies, and uses as a case study an urban design studio project in which the students sketched a set of rules that defined site coverage and building heights based on the proximity to various elements in the design.
wos	WOS:000402064400005
keywords	generative design; urban planning; Geographic Information Systems; parametric modelling
series	eCAADe
email
last changed	2022/06/07 07:52

_id	ecaade2016_085
id	ecaade2016_085
authors	Okuda, Shinya and Zhenyi, Lin
year	2016
title	Groove Light - Adding Physical Reality to Virtual Projections Using 3D-printed Lanterns
doi	https://doi.org/10.52842/conf.ecaade.2016.1.113
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. 113-120
summary	How might 21st-century computational technologies enhance lighting functionality in architecture? The Groove Light provokes relationships between light and shadow, adding a new dimension to future lighting. A series of distinctive and complex 3D-printed lanterns, which cast identical patterns of geometric shadows, creates the optical illusion that they are floating above a continuous, geometric carpet of shadows. The authors tested this concept in three steps: 1. 3D printability, 2. a lighting test and 3. interactivity. The paper also reports the effectiveness of a selective and custom support strategy for printing overhanging geometries with fused deposition modelling (FDM) 3D printers and further highlights differences between the computational models and physical prototypes in the quest for 'point' light sources.
wos	WOS:000402063700013
keywords	Digital Physicality; 3D Printing; Self-supporting Geometry; Stereographic Projection; Projection Mapping
series	eCAADe
email
last changed	2022/06/07 08:00

_id	ijac201614309
id	ijac201614309
authors	Yu, Rongrong and John S Gero
year	2016
title	An empirical basis for the use of design patterns by architects in parametric design
source	International Journal of Architectural Computing vol. 14 - no. 3, 289-302
summary	This article presents the results from exploring the impact of using a parametric design tool on designers’ behavior in terms of using design patterns in the early conceptual development stage of designing. It is based on an empirical cognitive study in which eight architectural designers were asked to complete two architectural design tasks with similar complexity, respectively, in a parametric design environment and a geometric modeling environment. The protocol analysis method was employed to study the designers’ behavior. In order to explore the development of design patterns in the empirical data, Markov model analysis is utilized. Through Markov models analysis of the parametric design environment and geometric modeling environment results, it was found that there are some significantly different design patterns being used when designing in a parametric design environment compared to designing in a geometric modeling environment. The article articulates these differences and draws conclusions from these results.
keywords	Design patterns, parametric design, protocol analysis
series	journal
last changed	2016/10/05 08:21

_id	acadia16_270
id	acadia16_270
authors	Korner, Axel; Mader, Anja; Saffarian, Saman; Knippers, Jan
year	2016
title	Bio-Inspired Kinetic Curved-Line Folding for Architectural Applications
doi	https://doi.org/10.52842/conf.acadia.2016.270
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.270-279
summary	This paper discusses the development of a bio-inspired compliant mechanism for architectural applications and explains the methodology of investigating movements found in nature. This includes the investigation of biological compliant mechanisms, abstraction, and technical applications using computational tools such as finite element analysis (FEA). To demonstrate the possibilities for building envelopes of complex geometries, procedures are presented to translate and alter the disclosed principles to be applicable to complex architectural geometries. The development of the kinetic façade shading device flectofold, based on the biological role-model Aldrovanda vesiculosa, is used to demonstrate the process. The following paper shows results of FEA simulations of kinetic curved-line folding mechanisms with pneumatic actuation and provides information about the relationship between varying geometric properties (e.g. curved-line fold radii) and multiple performance metrics, such as required actuation force and structural stability.
keywords	composite forming process, form-finding, biomimetics and biological design, embedded responsiveness
series	ACADIA
type	paper
email
last changed	2022/06/07 07:51

_id	ascaad2016_003
id	ascaad2016_003
authors	Al-Jokhadar, Amer; Wassim Jabi
year	2016
title	Humanising the Computational Design Process - Integrating Parametric Models with Qualitative Dimensions
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. 9-18
summary	Parametric design is a computational-based approach used for understanding the logic and the language embedded in the design process algorithmically and mathematically. Currently, the main focus of computational models, such as shape grammar and space syntax, is primarily limited to formal and spatial requirements of the design problem. Yet, qualitative factors, such as social, cultural and contextual aspects, are also important dimensions in solving architectural design problems. In this paper, an overview of the advantages and implications of the current methods is presented. It also puts forward a ‘structured analytical system’ that combines the formal and geometric properties of the design, with descriptions that reflect the spatial, social and environmental patterns. This syntactic-discursive model is applied for encoding vernacular courtyard houses in the hot-arid regions of the Middle East and North Africa, and utilising the potentials of these cases in reflecting the lifestyle and the cultural values of the society, such as privacy, human-spatial behaviour, the social life inside the house, the hierarchy of spaces, the segregation and seclusion of family members from visitors and the orientation of spaces. The output of this analytical phase prepares the groundwork for the development of socio-spatial grammar for contemporary tall residential buildings that gives the designer the ability to reveal logical spatial topologies based on socio-environmental restrictions, and to produce alternatives that have an identity while also respecting the context, place and needs of users.
series	ASCAAD
email
last changed	2017/05/25 13:13

_id	ecaade2016_073
id	ecaade2016_073
authors	Borhani, Alireza and Kalantar, Negar
year	2016
title	Material Active Geometry - Constituting Programmable Materials for Responsive Building Skins
doi	https://doi.org/10.52842/conf.ecaade.2016.1.639
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. 639-648
summary	This paper is part of a body of research developing an exploratory dialogue between the built form and the environment, via experimentation with performative geometry and material. Here, geometry is considered a design material with the specific capacity to contribute to the performative aspects and kinetic capabilities of building skins.This work opens with a review of emerging opportunities for architects to design materials. It then discusses the concept of Material Active Geometry (MAG) as a means of designing new properties for existing materials. This is followed by a discussion of MAG principles that inform the concepts of flexibility and rigidity in a 3D-printed textile called Flexible Textile Structure (FTS). This research characterizes two FTS types and discusses their potential to be employed in building skins; it also considers combinatory approaches to computational models and physical prototyping. The work concludes with a discussion of the advantages of using FTS, and provides a trajectory for future research in the field of responsive materials and systems.
wos	WOS:000402063700069
keywords	Programmable Material; Material Active Geometry; Flexible Textile Structures; Responsive Building Skins; Flexible yet Rigid
series	eCAADe
email
last changed	2022/06/07 07:54

_id	ecaade2016_199
id	ecaade2016_199
authors	Caetano, In?s and Leit?o, António
year	2016
title	Using Processing with Architectural 3D Modelling
doi	https://doi.org/10.52842/conf.ecaade.2016.1.405
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. 405-412
summary	Although programming was considered a specialized task in the past, we have been witnessing an increasing use of algorithms in the architectural field, which has opened up a wide range of new design possibilities. This was possible in part due to programming languages that were designed to be easy to learn and use by designers and architects, such as Processing. Processing is widely used for academic purposes, whereas in the architectural practice it is not as used as other programming languages due to its limitations for 3D modeling. In this paper, we describe the use of an extended Processing implementation to generate three 3D models inspired in existing case studies, which can be visualized and edited in different CAD and BIM applications.
wos	WOS:000402063700045
keywords	Generative design; Programming; Processing; 3D modeling
series	eCAADe
email
last changed	2022/06/07 07:54

_id	ecaade2016_027
id	ecaade2016_027
authors	Carl, Timo and Stepper, Frank
year	2016
title	"Free Skin" Collaboration - Negotiating complex design criteria across different scales with an interdisciplinary student team
doi	https://doi.org/10.52842/conf.ecaade.2016.1.591
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. 591-600
summary	The complex nature of architecture requires often planning teams with specialists from multiple disciplines. Architectural education however, addresses this interdisciplinary modus operandi rarely. This paper presents the design and production process of a real world solar façade installation realized at the University of Kassel to illustrating the potentials of such an approach. Interdisciplinary teamwork allowed students not only to solve complex problems, but also to produce knowledge and to advance into design research. Student exploration resulted in a unique fabrication technique, combining tensile fabric and resin to facilitate the fabrication of multifunctional, monocoque shells; combining all necessary technical components in a single building element. This paper discusses the success of student collaboration and teaching strategies for key parts of the design process at different scales. Moreover, it highlights the importance of physical form-finding models and an analogue - digital workflow for collaborative communication. The Free Skin project offers both insight into applied use of interdisciplinary teamwork, and a proposal for incorporating such collaboration into architectural education.
wos	WOS:000402063700064
keywords	interdisciplinary collaboration; design-build; form-finding; reactive design; shell structures
series	eCAADe
email
last changed	2022/06/07 07:54

_id	ecaade2023_138
id	ecaade2023_138
authors	Crolla, Kristof and Wong, Nichol
year	2023
title	Catenary Wooden Roof Structures: Precedent knowledge for future algorithmic design and construction optimisation
doi	https://doi.org/10.52842/conf.ecaade.2023.1.611
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, pp. 611–620
summary	The timber industry is expanding, including construction wood product applications such as glue-laminated wood products (R. Sikkema et al., 2023). To boost further utilisation of engineered wood products in architecture, further development and optimisation of related tectonic systems is required. Integration of digital design technologies in this endeavour presents opportunities for a more performative and spatially diverse architecture production, even in construction contexts typified by limited means and/or resources. This paper reports on historic precedent case study research that informs an ongoing larger study focussing on novel algorithmic methods for the design and production of lightweight, large-span, catenary glulam roof structures. Given their structural operation in full tension, catenary-based roof structures substantially reduce material needs when compared with those relying on straight beams (Wong and Crolla, 2019). Yet, the manufacture of their non-standard geometries typically requires costly bespoke hardware setups, having resulted in recent projects trending away from the more spatially engaging geometric experiments of the second half of the 20th century. The study hypothesis that the evolutionary design optimisation of this tectonic system has the potential to re-open and expand its practically available design solution space. This paper covers the review of a range of built projects employing catenary glulam roof system, starting from seminal historic precedents like the Festival Hall for the Swiss National Exhibition EXPO 1964 (A. Lozeron, Swiss, 1964) and the Wilkhahn Pavilions (Frei Otto, Germany, 1987), to contemporary examples, including the Grandview Heights Aquatic Centre (HCMA Architecture + Design, Canada, 2016). It analysis their structural concept, geometric and spatial complexity, fabrication and assembly protocols, applied construction detailing solutions, and more, with as aim to identify methods, tools, techniques, and construction details that can be taken forward in future research aimed at minimising construction complexity. Findings from this precedent study form the basis for the evolutionary-algorithmic design and construction method development that is part of the larger study. By expanding the tectonic system’s practically applicable architecture design solution space and facilitating architects’ access to a low-tech producible, spatially versatile, lightweight, eco-friendly, wooden roof structure typology, this study contributes to environmentally sustainable building.
keywords	Precedent Studies, Light-weight architecture, Timber shell, Catenary, Algorithmic Optimisation, Glue-laminated timber
series	eCAADe
email
last changed	2023/12/10 10:49

_id	ecaade2016_191
id	ecaade2016_191
authors	Di Mascio, Danilo, Chiuini, Michele, Fillwalk, John and Pauwels, Pieter
year	2016
title	3D Digital Reconstructions of Lost Buildings - A first critical framing
doi	https://doi.org/10.52842/conf.ecaade.2016.2.511
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. 511-520
summary	This paper presents a first critical framing of 3D digital reconstructions of lost buildings, hence focusing on reconstructions using 3D models. This critical framing is constituted by reflections on definitions, concepts, methodologies and digital technologies. Much experimentation in the digital reconstruction of lost buildings has produced valuable results during the last twenty years, but the variety of methods, software types, and purposes should be reorganized into clear operational protocols to allow sharing of information and collaboration across disciplines. We have therefore investigated the diverse approaches towards digital reconstructions of lost buildings and found that digital reconstructions are not typically aimed at simple visualizations: they are often further developed in virtual environments, information systems and tools for simulations and analysis. In this sense they are not products but instruments for further research and/or heritage conservation. Counter the large number of theoretical positions, methods and tools specific to different disciplines, such as architecture and archaeology, we can find the almost total absence of a comprehensive critical assessment. This paper, which is part of a larger project, intends to open and articulate a debate on how to define, analyze and critically systematize the methodologies for the digital reconstruction of lost buildings.
wos	WOS:000402064400051
keywords	Digital reconstruction; lost buildings; 3d modelling; information systems; virtual environments.
series	eCAADe
type	normal paper
email
more	admin
last changed	2022/06/07 07:55

_id	caadria2016_703
id	caadria2016_703
authors	Ding, Yakui; Tomohiro Fukuda, Nobuyoshi Yabuki, Takashi Michikawa and Ali Motamedi
year	2016
title	Automatic Measurement System of Visible Greenery Ratio Using Augmented Reality
doi	https://doi.org/10.52842/conf.caadria.2016.703
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. 703-712
summary	Greening has been promoted to improve the living condi- tions in urban environments. Quantification of greenery is an im- portant issue to identify the criteria for stakeholders in the process of greening. This research focuses on the quantification of visible green- ery ratio which is defined as the amount of greenery in the field of vi- sion. Some measurement methods of visible greenery ratio have been already proposed. However, the quantification process is usually time consuming and prone to human errors due to manual operations by us- ing an image processing software. Therefore, in this research, the au- thors developed an automated measurement system based on image processing technology for the efficient visible greenery ratio meas- urement. In the verification experiment, the proposed method achieved similar results for extracted pixels of green areas as the tradi- tional manual method, with decreased calculation time. Furthermore, in addition to measuring the current ratio of greenery, this system can visualize possible future changes in visible greenery by adding plant- ing (landscape) design models in an Augmented Reality (AR) envi- ronment. Using the proposed method, an ideal greening environment can be designed and evaluated by end-users, more intuitively. The de- veloped design system is expected to eventually result in increasing the amount of greenery in the urban environment.
keywords	Visible greenery ratio; image processing; automatic measurement tool; augmented reality
series	CAADRIA
email
last changed	2022/06/07 07:55

_id	ecaade2016_033
id	ecaade2016_033
authors	Dokonal, Wolfgang, Knight, Michael and Dengg, Ernst
year	2016
title	VR or Not VR - No Longer a Question?
doi	https://doi.org/10.52842/conf.ecaade.2016.2.573
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. 573-579
summary	Virtual Reality (VR) software has developed to the point where, for the architect who is averagely technically adept, it can be incorporated into the design process with reasonable effort and costs. For VR to be an effective design tool, it must add value to the design process and should give insights and opportunities not available by other methods.Previous research by the authors reported on the results of an international student workshop which focused both on the workflow (to prepare the architectural models for the new VR systems) and the spatial perception that users experienced. In this paper, we continue to explore the question: "Can low cost VR be an effective addition to the architects' design toolbox, or does it still remain a "far-fetched, high-tech expensive folly?"To do this we are working with a larger group of students, a more developed workflow and we are also expanding this to architects in practice. We will be assessing both the practicality of integrating VR into the design workflow and the spatial perception of the designer when interacting with the model. We are experimenting with additional interface tools.
wos	WOS:000402064400058
keywords	Virtual Reality; Google Cardboard; Low Cost Interfaces
series	eCAADe
email
last changed	2022/06/07 07:55

_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_224
id	ecaade2016_224
authors	Gerber, David and Pantazis, Evangelos
year	2016
title	Design Exploring Complexity in Architectural Shells - Interactive form finding of reciprocal frames through a multi-agent system
doi	https://doi.org/10.52842/conf.ecaade.2016.1.455
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. 455-464
summary	This paper presents an integrated workflow for interactive design of shell structures, which couples structural and environmental analysis through a multi-agent systems (MAS) for design. The work lies at the intersection of architecture, engineering and computer science research, incorporating generative design with analytical techniques. A brief review on architectural shell structures and the structural logic of reciprocal frames is described. Through the morphological study of reciprocal frames locally we seek to inform the behavior of a MAS, which integrates form-finding techniques, with daylight factor analysis (DFA) and finite element analysis (FEA) on a global configuration. An experimental design is developed in order to explore the solution space of large span free form shells with varying topologies and boundary conditions, as well as identify the relationships between local design parameters of the reciprocal frames (i.e. number of elements, profile) and the analyses (i.e. stress distribution, solar radiation) for enabling the generation of different global design alternatives. The research improves upon design decision-making latency and certainty through harnessing geometric complexity and structural form finding for early stage design. Additionally, the research improves upon design outcomes by establishing a feedback loop between design generation, analysis and performance.
wos	WOS:000402063700050
keywords	Generative design; computational design; multi-agent systems; shell structures; reciprocal frames; form finding; parametric design
series	eCAADe
email
last changed	2022/06/07 07:51

_id	ecaade2016_006
id	ecaade2016_006
authors	Gomaa, Mohamed and Jabi, Wassim
year	2016
title	Evaluating Daylighting Analysis of Complex Parametric Facades
doi	https://doi.org/10.52842/conf.ecaade.2016.2.147
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. 147-156
summary	Lighting analysis tools have proven their ability in helping designers provide functional lighting, increase comfort levels and reduce energy consumption in buildings. Consequently, the number of lighting analysis software is increasing and all are competing to provide credible and rigorous analysis. The rapid adoption of parametric design in architecture, however, has resulted in complex forms that make the evaluation of the accuracy of digital analysis more challenging. This study aims to evaluate and compare the performance of daylighting analysis in two industry standard software (Autodesk Revit and 3ds Max) when analysing the daylighting of complex parametric façade patterns. The study has shown that, generally, both Revit and 3ds Max underestimate illuminance values when compared to physical scaled models. 3ds Max was found to outperform Revit when simulating complex parametric patterns, while Revit was found to outperform 3ds Max when simulating simple fenestration geometries. As a general conclusion, the rapid progress of parametric modelling, integrated with fabrication technologies, has made daylighting analysis of complex geometries more challenging. There is a need for more sophisticated algorithms that can handle the increased level of complexity as well as further verification studies to evaluate the accuracy claims made by software vendors.
wos	WOS:000402064400014
keywords	Daylighting analysis evaluation; Parametric patterns; Revit; 3ds Max; Complex façades
series	eCAADe
email
last changed	2022/06/07 07:51

_id	ecaade2016_243
id	ecaade2016_243
authors	Gül, Leman Figen and Hal?c?, Süheyla Müge
year	2016
title	Collaborative Design with Mobile Augmented Reality
doi	https://doi.org/10.52842/conf.ecaade.2016.1.493
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. 493-500
summary	In early design process, designers employ several media for externalizations of their design ideas which facilitate decision making, discussion and evaluation. Especially models are the most common representation tools and are used generally to understand and make spatial reasoning on the design ideas. Besides the traditional methods, today, the technological developments bring new ways for collaboration and design in 3D; the mobile augmented reality (MAR) technology is one of them. MAR is augmented reality technology which is provided by mobile devices. This study focuses on the early design process of collaborative designers' communication when they are working with the MAR technology. We developed a MAR environment for designers, and conducted an experiment to understand the key elements of the interaction of the designers with the interface. The communication and interaction of the designers are analyzed using the protocol analysis method. The results show that the MAR technology supports the co-design activities encouraging the designers to manipulate the created artefact. The results of the study would be indicative for future studies.
wos	WOS:000402063700054
keywords	collaborative design; mobile augmented reality; protocol analysis
series	eCAADe
email
last changed	2022/06/07 07:50

_id	ecaade2016_163
id	ecaade2016_163
authors	Harding, John
year	2016
title	Evolving Parametric Models using Genetic Programming with Artificial Selection
doi	https://doi.org/10.52842/conf.ecaade.2016.1.423
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. 423-432
summary	Evolutionary methods with artificial selection have been shown to be an effective human-computer technique for exploring design spaces with unknown goals. This paper investigates an interactive evolution of visual programs currently used in popular parametric modelling software. Although parametric models provide a useful cognitive artifact for designers to interact with, they are often bound by their topological structure with the designer left to adjusting (or optimising) metric variables as part of a design search. By allowing the topological structure of the graph to be evolved as well as the parameters, artificial selection can be employed to explore a wider design space more suited to the early design stage.
wos	WOS:000402063700047
keywords	genetic programming; parametric design; artificial selection; evolutionary design; design exploration
series	eCAADe
email
last changed	2022/06/07 07:49

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