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 16 of 16

_id 6ec6
authors Alsayyad, Nezar, Elliott, Ame and Kalay, Yehuda
year 1996
title Narrative Models: A Database Approach to Modeling Medieval Cairo
source Design Computation: Collaboration, Reasoning, Pedagogy [ACADIA Conference Proceedings / ISBN 1-880250-05-5] Tucson (Arizona / USA) October 31 - November 2, 1996, pp. 247-254
summary This paper explores the use of three-dimensional simulations to investigate transformations of urban form in medieval Cairo, and lessons about using computers to support historical visualization. Our first attempt to create a single extremely detailed model of Cairo proved unworkable. From this experience we developed a database approach to organizing modeling projects of complex urban environments. The database consists of several complete models at different levels of abstraction. This approach has three advantages over the earlier one: the model is never viewed as incomplete, the framework supports both additive and subtractive chronological studies, and finally, the database is viewed as infinitely expandable. Using modeling software as a tool for inquiry into architectural history becomes more feasible with this new approach.
series ACADIA
email kalay@socrates.berkeley.edu
last changed 2003/11/21 14:15

_id sigradi2018_1879
id sigradi2018_1879
authors Danesh Zand, Foroozan; Baghi, Ali; Kalantari, Saleh
year 2018
title Digitally Fabricating Expandable Steel Structures Using Kirigami Patterns
source SIGraDi 2018 [Proceedings of the 22nd Conference of the Iberoamerican Society of Digital Graphics - ISSN: 2318-6968] Brazil, São Carlos 7 - 9 November 2018, pp. 724-731
summary This article presents a computational approach to generating architectural forms for large spanning structures based on a “paper-cutting” technique. In this traditional artform, a flat sheet is cut and scored in such a way that a small application of force prompts it to expand into a three-dimensional structure. To make these types of expandable structures feasible at an architectural scale, four challenges had to be met during the research. The first was to map the kinetic properties of a paper-cut model, investigating formative parameters such as the width and frequency of cuts to determine how they affect the resulting structure. The second challenge was to computationally simulate the paper-cut structure in an accurate fashion. We accomplished this task using finite element analysis in the Ansys software platform. The third challenge was to create a prediction model that could precisely forecast the characteristics of a paper-cutting pattern. We made significant strides in this demanding task by using a data-mining approach and regression analysis through 400 simulations of various cutting patterns. The final challenge was to verify the efficiency and accuracy of our prediction model, which we accomplished through a series of physical prototypes. Our resulting computational paper-cutting system can be used to estimate optimal cutting patterns and to predict the resulting structural characteristics, thereby providing greater rigor to what has previously been an ad-hoc and experimental design approach.
keywords Transformable Paper-cut; Design method; Prediction Model; Regression analysis; Physical prototype
series SIGraDi
email f.daneshzand@gmail.com
last changed 2019/05/20 09:14

_id 863b
authors Ferrar, Steve
year 1997
title Computers and the Creative Process
source Challenges of the Future [15th eCAADe Conference Proceedings / ISBN 0-9523687-3-0] Vienna (Austria) 17-20 September 1997
summary For many years I kept all my personal details, appointments and notes on a Psion Organiser. One day I started questioning the efficiency of this and my motivation for doing it. On analysis, (which I suppose I should have carried out before I bought it) I realised that, compared with a paper-based system, it took me longer to a) record information and b) retrieve it. But almost more importantly I realised that scanning information to build up a picture of say a particular week or month was not nearly as easy. As for annotating with a pencil or felt tipped pen......how I suddenly longed for the good old days and a paper-based system. I have now reverted to a Filofax, which even at the exorbitant price of £22.50 was still a lot cheaper than a Psion.

It is a random access device, with a large permanent storage capacity, is expandable and in easy-to-access hardcopy format. It is infinitely flexible. There are no batteries to run down and I can still get into it if I forget the password!

series eCAADe
email s.ferrar@dial.pipex.com
more http://info.tuwien.ac.at/ecaade/proc/ferrar/ferrar.htm
last changed 2001/08/17 13:11

_id ddssar0012
id ddssar0012
authors Hendricx, Ann and Neuckermans, Herman
year 2000
title Setting objects to work: adding functionality to an architectural object model
source Timmermans, Harry (Ed.), Fifth Design and Decision Support Systems in Architecture and Urban Planning - Part one: Architecture Proceedings (Nijkerk, the Netherlands)
summary Several research initiatives in the field of product modelling have produced static descriptions of the architectural and geometrical objects capable of describing architectural design projects. Less attention is paid to the development phase in which these static models are transformed into workable architectural design environments. In the context of the IDEA+ research project (Integrated Design Environment for Architectural Design), we use the object-oriented analysis method MERODE to develop and describe both an enterprise (or product) model and a functionality model. On the one hand, the enterprise model defines the architectural and geometrical objects, their methods and their relation with other objects. On the other hand, the functionality model organizes the functionality objects – ranging from single-event objects to complex-workflow objects – in a layered and easily expandable system. The functionality model is created on top of the enterprise model and closes the gap between the static enterprise model and the dynamic design environment as a whole. After a short introduction of the envisaged design environment and its underlying enterprise model, the paper will concentrate on the presentation of the higher-level functionality model. Elaborated examples of functionality objects on the different levels will clarify its concepts and proof its feasibility.
series DDSS
last changed 2003/08/07 14:36

_id 9f48
authors Hendricx, Ann and Neuckermans, Herman
year 2000
title Towards a Working Design Environment: From Enterprise to Functionality Model
source SIGraDi’2000 - Construindo (n)o espacio digital (constructing the digital Space) [4th SIGRADI Conference Proceedings / ISBN 85-88027-02-X] Rio de Janeiro (Brazil) 25-28 september 2000, pp. 197-199
summary Several product-modelling initiatives have produced static descriptions of the architectural and geometrical objects capable of describing architectural design projects. Less attention is paid to the development phase in which these static models are transformed into workable architectural design environments. In the context of the IDEA+ research project (Integrated Design Environment for Architectural Design) emphasis lies on the systematic development of both phases. The result is an analysis model that consists of two submodels. On the one hand, the enterprise model defines the architectural and geometrical objects, their methods and their relation with other objects. On the other hand, the functionality model organises the functionality objects - ranging from single-event objects to complex-workflow objects - in a layered and easily expandable system. As such, it closes the gap between the static enterprise model and the dynamic design environment as a whole.
series SIGRADI
email ann.hendricx@asro.kuleuven.ac.be, herman.neuckermans@asro.kuleuven.ac.be
last changed 2016/03/10 08:53

_id acadia18_358
id acadia18_358
authors Lara Ditzel, Patricio; Balas, Leonard; Kalina, Olga; Vasey, Lauren; Bechert, Simon; Krieg ,Oliver David; Menges, Achim; Knippers, Jan
year 2018
title Integrative Fabrication of Sandwich Shells. An integrative approach to design of robotically fabricated wood- based sandwich segmented shells
source ACADIA // 2018: Recalibration. On imprecisionand infidelity. [Proceedings of the 38th Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) ISBN 978-0-692-17729-7] Mexico City, Mexico 18-20 October, 2018, pp. 358-365
summary This paper presents the development of an integrative and adaptive robotic fabrication process for the production of wooden-based segmented shells of variable thickness. A material and construction process is presented whereby an industrial robot with a two-degree of freedom end-effector acts as active form-work, positioning flexible strips of plywood so they can be assembled into a structurally performative configuration and then filled with a polyurethane expandable foam. The resulting material system is a structurally performative and doubly curved sandwich composite which performs well in bending. This paper discusses the construction process and the material system, methods for structural analysis, an adaptive robotic fabrication process, as well as a computational design tool which integrates material constraints, robotic constraints, and structural performance. The resulting construction system expands the design possibilities for robotic fabrication in wood, particularly as a viable material system for implementation directly in an on-site condition.
keywords work in progress, fabrication & robotics, materials & adaptive systems
series ACADIA
type paper
email laraditzel@gmail.com
last changed 2019/01/07 11:22

_id caadria2009_097
id caadria2009_097
authors Lin, Chieh-Jen; Mao-Lin Chiu
year 2009
title Open Case Study
source Proceedings of the 14th International Conference on Computer Aided Architectural Design Research in Asia / Yunlin (Taiwan) 22-25 April 2009, pp. 393-399
summary The aim of the paper is to establish an ontology-based case encoding tool with sufficient formalization and expansibility to assist users for organizing the case information and increasing the feasibility of the design knowledge in a case library. The tool is named Open Case Study (OCS). OCS is a formalized and expandable tool for authoring metadata of a case library and organizing them by their semantic ontology. By using the templates constructed by design experts, such as design teachers or experienced architects, OCS provides the user with explicit but adaptable guidelines for case analysis and encoding. OCS then performs the searching and mapping function provided by Open Ontology. Thus, when the user is encoding the information segments of cases, relevant knowledge chunks in the case library can then be immediately provided, such as relevant senses in similar cases, all atoms of a relevant sense, and known value ranges of a relevant property. This assists users to avoid data mistake and duplication in encoding design cases.
keywords Case library; design knowledge; knowledge representation; semantic ontology; and metadata
series CAADRIA
email t60011@mail.tut.edu.tw
last changed 2012/05/30 19:29

_id caadria2008_40_session4b_328
id caadria2008_40_session4b_328
authors Lin, Chieh-Jen; Mao-Lin Chiu
year 2008
title Open Ontology: A Self-Organizing Tool for Knowledge Acquisition in a Case Library
source CAADRIA 2008 [Proceedings of the 13th International Conference on Computer Aided Architectural Design Research in Asia] Chiang Mai (Thailand) 9-12 April 2008, pp. 328-334
summary This paper is aimed to establish a sufficiently formalized, expandable metadata authoring tool of a case library based on ontology methodologies of AI. This tool cannot only self-organize facts of cases’ features, but can also guide users to arrange those facts into a formalized structure to facilitate design reasoning. Then knowledge experts, such as design instructors or project managers, can apply this tool to author and organize metadata of cases’ features in order to build knowledge templates for special situations. Beginners, such as students or assistants, can apply those templates to indicate and analyze facts of collected cases’ features and acquire essential knowledge in solving problems. Finally, through easily recognized semantic relations of metadata, facts of cases’ features can be self-organized, and the system can apply data mining techniques to detect and discover hidden knowledge patterns among facts of cases’ features.
keywords Case Library; Design Knowledge; Knowledge Representation; Semantic Ontology; and Data Mining
series CAADRIA
email T60011@mail.tut.edu.tw, Mc2p@ms21.hinet.net
last changed 2012/05/30 19:29

_id sigradi2016_602
id sigradi2016_602
authors Mattos, Erica Azevedo da Costa e; Silva, Diego Fagundes da
year 2016
title Módulos Eletrônicos Interativos: Cibernética e Indeterminaç?o para a Exploraç?o e Aprendizagem em Design [Interactive Electronic Modules: Cybernetics and Uncertainties for Exploration and Learning 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.782-789
summary This paper discusses the ongoing development process of an electronic experimentation and learning open system composed by discrete modular units. Our aim is to create an expandable tool capable of support architecture students with the development of notions about electronic systems, digital interactions and the incorporation of uncertainties in design. The theoretical framework of the research is here presented - discussing design, ethics, Second-Order Cybernetics and knowledge construction theories. Also, precedent work on construction kits are introduced for critical analysis and comparison. We concluded our paper with a possible application in an actual educational setting.
keywords Design; Second-Order Cybernetics; Learning Processes; Modules; Electronic Building Blocks
series SIGraDi
email ericamattos@gmail.com
last changed 2017/06/21 12:20

_id a026
authors Nagakura, Takehiko
year 1996
title Form Processing: A System for Architectural Design
source Harvard University
summary This thesis introduces a new approach to developing software for formal synthesis in architectural design. It presents theoretical foundations, describes prototype specifications for computable implementation, and illustrates some examples. The approach derives from the observation that architects explore ideas through the use of sequences of drawings. Architects derive each drawing in a sequence from its predecessor by executing some transformation on a portion of the drawing. Thus, a formal design state is established by a sequence of drawings with historical information about their construction through progressive transformations. The proposed system allows an architect to develop a design in three ways. First, a new transformation can be added to a current sequence of drawings. Second, existing sequences can be edited by exchanging their subset sequences. Third, an existing sequence can be revised parametrically by assigning new values to its design variables. The system implements scripts that specify categories of shapes and transformations between any two shape categories. When an instance of a shape category is found in a design, a transformation can replace it with an instance of another shape category. Recursive application of a given set of transformations to an initial shape instance produces a sequence of drawings that represents a formal design state. The system encodes this formal design state as an assembly of all the shape instances used and their relationships (nesting, emergent and replacement). Furthermore, this assembly, called a construction graph, allows the existing sequences to be edited efficiently by exchanging subsets and to be revised parametrically. The advantage of this approach as demonstrated in the examples is that it allows intuitive, rapid and interactive construction of complex designs. Moreover, design knowledge can be captured by scripts that depict heuristic shapes and transformations as well as by assembled construction graphs which depict cases of formal design. Such a reusable and expandable knowledge base is essential for assisting disciplined and creative architectural design.
keywords Computer Software Development; Architectural Design; Data Processing
series thesis:PhD
email takehiko@mit.edu
last changed 2003/02/12 21:37

_id sigradi2015_8.276
id sigradi2015_8.276
authors Oliveira, Maurício Guimar?es de; Harris, Ana Lúcia Nogueira de Camargo
year 2015
title Parametric simulation of a scissor-like icosahedron in Grasshopper, based on Hoberman patent
source SIGRADI 2015 [Proceedings of the 19th Conference of the Iberoamerican Society of Digital Graphics - vol. 1 - ISBN: 978-85-8039-135-0] Florianópolis, SC, Brasil 23-27 November 2015, pp. 392-397.
summary This article proposes the creation of a virtual icosahedric parametric structure based on Chuck Hoberman’s patent “Reversibly expandable doubly-curved truss structure”, which contains the single-angulated bar. It was used the software Rhinoceros with Grasshopper parametric plugin to develop the simulation, elucidating it’s potential to develop and study complex geometries.
keywords Simulation, Scissor-like, Hoberman, Grasshopper, Icosahedron
series SIGRADI
email oliveiramauricio@gmail.com
last changed 2016/03/10 08:56

_id 899f
authors Papamichael, K., Pal, V., Bourassa, N., Loffeld, J. and Capeluto, I.G.
year 2000
title An Expandable Software Model for Collaborative Decision-Making During the Whole Building Life Cycle
source Eternity, Infinity and Virtuality in Architecture [Proceedings of the 22nd Annual Conference of the Association for Computer-Aided Design in Architecture / 1-880250-09-8] Washington D.C. 19-22 October 2000, pp. 19-28
summary Decisions throughout the life cycle of a building, from design through construction and commissioning to operation and demolition, require the involvement of multiple interested parties (e.g., architects, engineers, owners, occupants and facility managers). The performance of alternative designs and courses of action must be assessed with respect to multiple performance criteria, such as comfort, aesthetics, energy, cost and environmental impact. Several stand-alone computer tools are currently available that address specific performance issues during various stages of a building’s life cycle. Some of these tools support collaboration by providing means for synchronous and asynchronous communications, performance simulations, and monitoring of a variety of performance parameters involved in decisions about a building during building operation. However, these tools are not linked in any way, so significant work is required to maintain and distribute information to all parties. In this paper we describe a software model that provides the data management and process control required for collaborative decision-making throughout a building’s life cycle. The requirements for the model are delineated addressing data and process needs for decision making at different stages of a building’s life cycle. The software model meets these requirements and allows addition of any number of processes and support databases over time. What makes the model infinitely expandable is that it is a very generic conceptualization (or abstraction) of processes as relations among data. The software model supports multiple concurrent users, and facilitates discussion and debate leading to decision-making. The software allows users to define rules and functions for automating tasks and alerting all participants to issues that need attention. It supports management of simulated as well as real data and continuously generates information useful for improving performance prediction and understanding of the effects of proposed technologies and strategies.
keywords Decision Making, Integration, Collaboration, Simulation, Building Life Cycle, Software.
series ACADIA
email K_Papamichael@lbl.gov
last changed 2003/05/16 17:23

_id 861a
authors Sedas, Sergio W. and Talukdar, Sarosh N.
year 1987
title A Disassembly Planner for Redesign
source The Winter Annual Meeting of the American Society of Mechanical Engineers. Symposium of Intelligent and Integrated Manufacturing Analysis and Synthesis. December, 1987. Pittsburgh, PA: Engineering Design Research Center, CMU, 1988. [6] p. : ill. includes bibliography
summary This paper describes an algorithm for generating plans for disassembling given objects. The plans are produced by a set of knowledge sources acting on a set of representations for the object. Both sets are arbitrarily expandable, so programs using the approach can grow continually in capability. Our present complement of knowledge sources and representations can tackle relatively difficult problems. Three examples are included. The first requires a good bit of geometric reasoning before appropriate subassemblies can be selected. The second and third require certain movable parts to be repositioned before disassembly can be achieved
keywords algorithms, representation, synthesis, assemblies, knowledge, reasoning, mechanical engineering
series CADline
last changed 2003/06/02 11:58

_id sigradi2012_187
id sigradi2012_187
authors Sharif, Shani; Gentry, T Russell; Yen, Jeannette; Goodman, Jose N
year 2012
title Kinetic Solar Panels: A Transformative and Expandable Geometric System for Photovoltaic Structures
source SIGraDi 2012 [Proceedings of the 16th Iberoamerican Congress of Digital Graphics] Brasil - Fortaleza 13-16 November 2012, pp. 649-652
summary This paper focuses on the applications of geometrically transformable and expandable structures with deployed “energy production mode and retracted “wind shedding” mode to replace the fixed photovoltaic (PV) panels and racking systems currently used in buildings rooftop installations. The significance of this expandable geometric system relies on its embedded motion grammar, i.e. rotation and translation transformations, in the system. The research draws inspiration from reconfiguration of compound tree leaves in nature, and addresses issues of redesign and modeling challenges that led to digital fabrication of the prototype.
keywords Kinetic system, photovoltaic panels, geometric transformation, motion grammar, parametric modeling
series SIGRADI
email shani@gatech.edu
last changed 2016/03/10 09:00

_id ijac201310205
id ijac201310205
authors Sharif, Shani; T. Russell Gentry, Jeannette Yen, Joseph N. Goodman
year 2013
title Transformative Solar Panels: A Multidisciplinary Approach
source International Journal of Architectural Computing vol. 11 - no. 2, 227-246
summary This paper focuses on the applications of geometrically transformable and expandable structures with deployed "energy production" mode and retracted "wind shedding" mode to replace the fixed photovoltaic (PV) panels and racking systems currently used in buildings rooftop installations. The significance of this expandable geometric system relies on its embedded motion grammar, i.e. rotation and translation transformations, in the system. The research draws inspiration from reconfiguration of compound tree leaves in nature, and addresses issues of redesign and modeling challenges that led to digital fabrication of the prototype. Finally, the research studies the development of a multidisciplinary research from the distributed cognition point of view, and emphasizes on the role of an iterative creation, sharing and reflection method for the development of a common ground for a successful collaboration.
series journal
last changed 2019/05/24 07:55

_id ecaade2007_029
id ecaade2007_029
authors Terzidis, Kostas; Jungclaus, Jan
year 2007
title Predicting the Future: Open Source CAAD?
source Predicting the Future [25th eCAADe Conference Proceedings / ISBN 978-0-9541183-6-5] Frankfurt am Main (Germany) 26-29 September 2007, pp. 815-819
summary This paper will present a prototype open source CAD system developed recently by a join effort among Harvard, CMU, and MIT. The system is composed of an expandable user interface, a data structure that supports 2D and 3D objects, image processing capabilities, animation, network communication (TCP/IP), serial interface, and file processing modules that can be expanded. The idea was to develop seed modules that can interact with one another in order to be modified, expanded, or new ones added. The language used is Processing and the setup is made to be implemented in an open source format (i.e. GNU and Google Code). The system is an open source universal architectural CAD system that will hopefully serve as the software standard for education and practice.
keywords Open source, digital design
series eCAADe
email kostas@gsd.harvard.edu
last changed 2007/09/16 15:55

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