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	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
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
doi	https://doi.org/10.52842/conf.acadia.2016.270
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	ascaad2021_151
id	ascaad2021_151
authors	Allam, Samar; Soha El Gohary, Maha El Gohary
year	2021
title	Surface Shape Grammar Morphology to Optimize Daylighting in Mixed-Use Building Skin
source	Abdelmohsen, S, El-Khouly, T, Mallasi, Z and Bennadji, A (eds.), Architecture in the Age of Disruptive Technologies: Transformations and Challenges [9th ASCAAD Conference Proceedings ISBN 978-1-907349-20-1] Cairo (Egypt) [Virtual Conference] 2-4 March 2021, pp. 479-492
summary	Building Performance simulation is escalating towards design optimization worldwide utilizing computational and advanced tools. Egypt has its plan and agenda to adopt new technologies to mitigate energy consumption through various sectors. Energy consumption includes electricity, crude oil, it encompasses renewable and non-renewable energy consumption. Egypt Electricity (EE) consumption by sector percentages is residential (47%), industrial (25%) and commercial (12%), with the remainder used by government, agriculture, public lighting and public utilities (4%). Electricity building consumption has many divisions includes HVAC systems, lighting, Computers and Electronics and others. Lighting share of electricity consumption can vary from 11 to 15 percent in mixed buildings as in our case study which definitely less that the amount used for HVAC loads. This research aims at utilizing shape morphogenesis on facades using geometric shape grammar to enhance daylighting while blocking longwave radiations causing heat stress. Mixed-use building operates in daytime more than night which emphasizes the objective of this study. Results evaluation is referenced to LEED v4.1 and ASHRAE 90.1-2016 window-to-wall ratio calibration and massive wall description. Geometric morphogenesis relies on three main parameters; Pattern (Geometry Shape Grammar: R1, R2, and R3), a reference surface to map from, and a target surface to map to which is the south-western façade of the case study. Enhancing Geo-morph rule is to guarantee flexibility due to the rotation of sun path annually with different azimuth and altitude angles and follow LEED V4.1 enhancements of opaque wall percent for building envelope.
series	ASCAAD
email
last changed	2021/08/09 13:13

_id	caadria2016_055
id	caadria2016_055
authors	An, Seyun; Yountaik Leem, Soyeon Kim and Sangho Lee
year	2016
title	A Study of Media Façade Service Design for Promotion of Local Community
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. 55-62
doi	https://doi.org/10.52842/conf.caadria.2016.055
summary	This research was progressed as a media fac?ade service de- sign research for the development of a residential U-city experiencing zone in the Sejong City.
keywords	Media fac?ade; community; service design; U-City; Sejong C!ty
series	CAADRIA
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
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
doi	https://doi.org/10.52842/conf.ecaade.2016.1.591
wos	WOS:000402063700064
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.
keywords	interdisciplinary collaboration; design-build; form-finding; reactive design; shell structures
series	eCAADe
email
last changed	2022/06/07 07:54

_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_102
id	ecaade2016_102
authors	Decker, Martina, Hahn, George and Harris, Libertad M.
year	2016
title	Bio-Enabled Façade Systems - Managing Complexity of Life through Emergent Technologies
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. 603-612
doi	https://doi.org/10.52842/conf.ecaade.2016.1.603
wos	WOS:000402063700065
summary	The abundance of vertical surfaces in urban environments and their use for green installations have been of great interest in the architectural community. This paper discusses how vertical gardens and urban farming can be spurred on and enabled by two emerging fields of investigation: Material Science and the Internet of Things (IoT). This paper discusses how two emerging strategies, smart materials and novel sensing and actuation systems linked to the IoT, can facilitate the creation of a stable environment or zone along architectural facades for the creation of new ecosystems. Furthermore, this paper will contemplate future trajectories for the integration of living matter into buildings and propose an open source database that will facilitate the exchange of collected data and knowledge to spur on further developments.
keywords	Microalgae; Nanotechnology; Internet of Things; Bio-Enabled Design; Microcontrollers, Sensors
series	eCAADe
email
last changed	2022/06/07 07:55

_id	ecaade2016_007
id	ecaade2016_007
authors	ElGhazi, Yomna Saad and Mahmoud, Ayman Hassaan Ahmed
year	2016
title	Origami Explorations - A Generative Parametric Technique For kinetic cellular façade to optimize Daylight Performance
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. 399-408
doi	https://doi.org/10.52842/conf.ecaade.2016.2.399
wos	WOS:000402064400039
summary	At present the kinetics is basic, but there is no doubt that research into the field of responsive building facades will continue, to find more sophisticated design and technical solutions. This research explores the possibilities of kinetic composition afforded by Origami different techniques using squared module. Origami and paper pleating techniques are one of the conceptual design approaches from which Kinetics can be developed. The paper examines the possibilities of different arrangements of folded modules to create environmental efficient kinetic morphed skins. The paper aims to achieve different Kinetic origami-based shading screens categorized by series of parameters to provide appropriate daylighting. The main tested parameters are the form of Origami folds, the module size and motion scenarios. Ten origami cases where explored first using conceptual folded paper maquette modules, then parametrically modelled and simulated at four times of the year, 21st of March, June, September and December, taken every hour of the working day.
keywords	Kinetic cellular façade; Origami; Parametric modelling; Parametric simulations; Daylighting performance.
series	eCAADe
email
last changed	2022/06/07 07:55

_id	acadia16_12
id	acadia16_12
authors	Gerber, David Jason; Pantazis, Evangelos
year	2016
title	A Multi-Agent System for Facade Design: A design methodology for Design Exploration, Analysis and Simulated Robotic Fabrication
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. 12-23
doi	https://doi.org/10.52842/conf.acadia.2016.012
summary	For contemporary design practices, there still remains a disconnect between design tools used for early stage design exploration and performance analysis, and those used for fabrication and construction of complex tectonic architectural systems. The research brings forward downstream fabrication constraints into the up-stream design exploration and design decision making. This paper addresses the issues of developing an integrated digital design work-flow and details a research framework for the incorporation of environmental performance into a robotic fabrication for early stage design exploration and generation of intricate and complex alternative façade designs. The method allows the user to import a design surface, define design parameters, set a number of environmental performance objectives, and then simulate and select a robotic construction strategy. Based on these inputs, design alternatives are generated and evaluated in terms of their performance criteria in consideration of their robotically simulated constructability. In order to validate the proposed framework, an experimental case study of office building façade designs that are generatively created from a multi-agent system for design methodology is design explored and evaluated. Initial results define a heuristic function for improving simulated robotic constructability and illustrate the functionality of our prototype. Project limitations and future research steps are then discussed.
keywords	generative design, multi-objective design optimization, robotic fabrication, simulation, design performance, design decision making
series	ACADIA
type	paper
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
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
doi	https://doi.org/10.52842/conf.ecaade.2016.2.147
wos	WOS:000402064400014
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.
keywords	Daylighting analysis evaluation; Parametric patterns; Revit; 3ds Max; Complex façades
series	eCAADe
email
last changed	2022/06/07 07:51

_id	ascaad2016_018
id	ascaad2016_018
authors	Mallasi, Zaki
year	2016
title	Integrating Physical and Digital Prototypes Using Parametric Bim in the Pursuit of Kinetic Façade
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. 155-168
summary	Architectural facades are designed to respond to environmental, social and functional considerations among others. Advancements in Digital Design Computation (DDC) emerged as an essential support for exploring and creating contemporary architectural facades. Current research into responsive kinetic facade suggests different methods of integrating kinetics into physical facade. However, research indicates that physical façades struggle to achieve the anticipated kinetic responses. In addition, the process is formal, prescribed, lacks flexibility and mostly assists the designer in the visualization of design. Consequently, the challenges in understanding the creative process that mediates between digital/physical kinetics are important to address in the early design stage. Digital and physical façade prototypes would allow designers to test the qualities of such system before constructing full size mock-ups and discover new modes of parametric design thinking in architecture.
series	ASCAAD
email
last changed	2017/05/25 13:31

_id	ascaad2016_025
id	ascaad2016_025
authors	Mohamadin, Mahmoud F.; Ahmed A. Abouaiana and Hala H. Wagih
year	2016
title	Parametric Islamic Geometric Pattern for Efficient Daylight and Energy Performance - Façade retrofit of educational space in hot arid climate
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. 227-236
summary	The purpose of this paper is to reach an optimal Islamic geometric pattern (IGP) shading screen design in terms of daylight and energy performance in an existing educational design studio (EDS) using generative design and simulation techniques. The study was carried out in a hot arid climate, in a typical EDS in 6th October University, located in Cairo, Egypt, and the study focused on the north-east oriented façade. Grasshopper for Rhino was utilized to generate the IGP parametric variations. Diva-For-Rhino which performs daylight analysis using Radiance / DAYSIM, and Design Builder which performs thermal load simulations using EnergyPlus were utilized in simulation. The results of the study achieved the required daylight levels with significant reduction of energy consumption levels of cooling load. This shows the affordance of the parametric IGP shading screens in façade treatment for achieving both efficient daylight and energy performance in educational design studio in hot arid climates.
series	ASCAAD
email
last changed	2017/05/25 13:31

_id	ecaade2016_042
id	ecaade2016_042
authors	Narangerel, Amartuvshin, Lee, Ji-Hyun and Stouffs, Rudi
year	2016
title	Daylighting Based Parametric Design Exploration of 3D Facade Patterns
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. 379-388
doi	https://doi.org/10.52842/conf.ecaade.2016.2.379
wos	WOS:000402064400037
summary	A building façade plays an important role of reducing artificial lighting by introducing natural light into the interior space. A majority of research and current technology heavily focuses on the optimization of window properties such as the size, location, and glazing with the consideration of external shading device as well as the building wall in order to obtain appropriate natural lit space. In the present work, we propose a 3-dimensional approach that can explore the trade-offs between two objectives, daylight performance and electricity generation, by means of paramedic modeling and multi-objective optimization algorithm. The case study was simulated under the environmental setting of the geographical location of Incheon, Korea without any urban context. Using the proposed methods, 50 pareto-front optimal solutions were derived and investigated based on the achieved daylighting and generated electricity.
keywords	Parametric design; façade design; daylight performance; building-integrated photovoltaics; multi-objective optimization
series	eCAADe
email
last changed	2022/06/07 07:58

_id	sigradi2016_484
id	sigradi2016_484
authors	Shahmiri, Fereshteh; Gentry, Russell
year	2016
title	A Survey of Cable-Suspended Parallel Robots and their Applications in Architecture and Construction
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.914-920
summary	Serial, aerial and solid-linked parallel robots are unable to handle large payloads in building-scale workspaces for on-site applications and are thus best suited for automated fabrication in plant settings. In contrast, Cable Suspended Parallel Robots or CSPRs are able to handle large loads and traverse great distances as required on building construction sites. This paper reviews the existing literature and practice to bridge the gap between our understanding of CSPRs and their applicability to building-scale tasks such as full-scale concrete printing and building façade installation. The research identifies key activities in CSPRs fabrication workflows. Using a comparative approach, the paper investigates five CSPR variants and assesses the performance characteristics. A simple kinematic model of each CSPR is developed and implemented as a Rhino/Grasshopper script to aid in the performance assessment of each system. The paper concludes with a ranking of CSPR systems and their likely applicability to full-scale implementation on a construction site.
keywords	Cable Suspended Parallel Robots; CSPR; Automation; AEC
series	SIGRADI
email
last changed	2021/03/28 19:59

_id	sigradi2016_695
id	sigradi2016_695
authors	Stofella, Arthur; Bertoli, Luiza Figueredo;Vaz, Carlos Eduardo Verzola; Kós, José Ripper
year	2016
title	O desenvolvimento de um sistema de proteç?o de fachadas cinéticos: um protótipo responsivo ao comportamento do usuário [Developing a kinect façade protection system: a prototype responsive to the user behaviour]
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.550-555
summary	This article presents the new results of a work originally prepared by undergraduate students of the Federal University of Pernambuco that developed a functional physical prototype of a responsive façade. At first, the system only changed itself accordingly to the modifications of the environmental parameters, such as temperature, humidity and luminosity. In this new research stage, a simplified version of the façade was developed to make the system responsive to the behaviour of those who are using the indoor spaces of buildings. The physical prototype was built with LEDs that represent the actuators responsible for modifying the position of the responsive façade parts, and the Kinect’s motion sensor was used to capture the human behaviour. The prototype here presented was developed with simple, easy to acquire materials, making it an element that can be easily reproduced and employed as an educational tool of automation applied to architecture.
keywords	Responsive design, human activities, computer vision
series	SIGRADI
email
last changed	2021/03/28 19:59

_id	caadria2016_167
id	caadria2016_167
authors	Su, Hsiu-Pai and Sheng-Fen Chien
year	2016
title	Revealing Patterns: Using parametric design patterns in building façade design workflow
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. 176-176
doi	https://doi.org/10.52842/conf.caadria.2016.176
summary	The objective of this paper is to provide a way of viewing design knowledge imbedded in the design workflow. By reviewing known design projects, we have observed common occurrences of de- sign patterns in different stages of parametric fac?ade design workflow. We demonstrate the application of parametric design patterns in prac- tices as preliminary studies of forming a pattern language of paramet- ric design.
keywords	Design pattern; parametric design; fac?ade design
series	CAADRIA
email
last changed	2022/06/07 07:56

_id	caadria2016_197
id	caadria2016_197
authors	Zavoleas, Yannis
year	2016
title	The biological model and the bio-type: Dynamic simulation tools defining architectural components
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. 197-206
doi	https://doi.org/10.52842/conf.caadria.2016.197
summary	Architecture has shown a recurring interest on themes of biological origin, especially since the early days of modernism. With the advent of computation, the related discourse has been enriched with new analogies, in particular when biological systems are de- scribed by algorithmic formulas and their parametric functions are in- spected with the assistance of simulation tools. An understanding of the architectural object with reference to biology offers breaking from typological preconceptions about form in favour of its operational character supporting organic behaviour, so to speak. In reflection, the present paper puts under scrutiny architectural components such as fa- c?ade, wall, window, opening, support structure and circulation viewed as topological references also in analogy to biological notions such as skin, membrane, cell, bone structure, energy flows and the nervous system. Form becomes the dynamic effect of forces; a system that manages energy trades being the primary cause of its own shape.
keywords	System; parametricism; type; topology; bio-structuralism
series	CAADRIA
email
last changed	2022/06/07 07:57

_id	ecaade2016_151
id	ecaade2016_151
authors	Blonder, Arielle and Grobman, Yasha Jacob
year	2016
title	Natural Complexity - Embedded Fabric Materiality in Fibre-Reinforced Polymer Fabrication
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. 581-589
doi	https://doi.org/10.52842/conf.ecaade.2016.1.581
wos	WOS:000402063700063
summary	Fibre composites are synthetic in their composition, but structured similarly to biological materials, as fibre and matrix. While the fibre constituent in Fibre-Reinforced Polymer (FRP) is mostly used under the form of fabrics, its standard fabrication processes do not rely on its inherent textile attributes. Embedding the fabric qualities in the fabrication of architectural FRP can potentially introduce concepts and properties of biological materials into engineered fibre composites; it can promote and enable the generation of an architectural complexity of a biological nature. The paper presents Fabric Materiality as a framework for a new design and fabrication process and demonstrates through a case study its integration in the fabrication of architectural FRP elements to achieve a complex structure with bio-inspired properties.
keywords	Textile; Materiality; Self-organisation; Resilience; Composites; FRP
series	eCAADe
email
last changed	2022/06/07 07:52

_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
source	Proceedings of the 2023 DigitalFUTURES The 5st International Conference on Computational Design and Robotic Fabrication (CDRF 2023)
doi	https://doi.org/https://doi.org/10.1007/978-981-99-8405-3_44
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	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	caadria2016_187
id	caadria2016_187
authors	Cruz, Camilo; Justyna Karakiewicz and Michael Kirley
year	2016
title	Towards the implementation of a composite Cellular Automata model for the exploration of design space
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. 187-196
doi	https://doi.org/10.52842/conf.caadria.2016.187
summary	In this paper, we introduce a novel composite Cellular Au- tomata (CA) model to explore the space of design for human envi- ronments. Consisting of multiple, regularly spaced, interleaved 1D CA, our model provides a mechanism to evolve flexible spatial units, where the ‘cells’ are not defined as programmatic elements but as ‘form-making’ elements. The efficacy of this approach is evaluated via a standard methodology, typically used in the study of complex adaptive systems. We systematically examine the dynamics of a series of instances of the composite CA by varying initial conditions and transition rules. A measure of entropy is used to validate emergent patterns. Subsequently, we investigate whether the composite CA is capable of generating aggregate spatial units to match specific spatial configurations, using a well-known example as a benchmark. This phase allows us to bring an understanding of the results into the con- text of architectural design.
keywords	Cellular automata; generative design; design space
series	CAADRIA
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last changed	2022/06/07 07:56

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