Cumincad : CUMINCAD Papers : Search Results

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

PDF papers
References

Hits 1 to 20 of 510

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

_id	ecaade2024_230
id	ecaade2024_230
authors	Fekar, Hugo; Novák, Jan; Míèa, Jakub; Žigmundová, Viktória; Suleimanova, Diana; Tsikoliya, Shota; Vasko, Imrich
year	2024
title	Fabrication with Residual Wood through Scanning Optimization and Robotic Milling
doi	https://doi.org/10.52842/conf.ecaade.2024.1.025
source	Kontovourkis, O, Phocas, MC and Wurzer, G (eds.), Data-Driven Intelligence - Proceedings of the 42nd Conference on Education and Research in Computer Aided Architectural Design in Europe (eCAADe 2024), Nicosia, 11-13 September 2024, Volume 1, pp. 25–34
summary	The project deals with the use of residual wood of tree stumps and roots through scanning, optimization and robotic milling. Wood logging residue makes up to 50 percent of the trees harvested biomass. (Hakkila and Parikka 2002). Among prevailing strategies is leaving residue on site, and recovering residue for bioenergy. (Perlack and others 2005). The project explores the third strategy, using parts of the logging residue for fabrication, which may reduce the overall amount of wood logging volume. Furthermore approach aims for applying residue in its natural form and taking advantage of specific local characteristics of wood (Desch and Dinwoodie 1996). The project applies the strategy on working with stump and roots of an oak tree. Due to considerations of scale, available milling technics and available resources, chosen goal of the approach is to create a functioning chair prototype. Among the problems of the approach is the complex shape of the residue, uneven quality of wood, varying humidity and contamination with soil. After cleaning and drying, the stump is scanned and a 3D model is created. The 3D model od a stump is confronted with a 3D modelled limits of the goal typology (height, width, length, sitting surface area and overal volume of a chair) and topological optimization algorithm is used to iteratively reach the desired geometry. Unlike in established topological optimization proces, which aims for a minimal volume, the project attempts to achieve required qualities with removing minimal amount of wood. Due to geometric complexity of both stump and goal object, milling with an 6axis industrial robotic arm and a rotary table was chosen as a fabrication method. The object was clamped to the board (then connected to a rotary table) in order to provide precise location and orientation in 3D space. The milling of the object was divided in two parts, with the seating area milled in higher detail. Overall process of working with a residual wood that has potential to be both effective and present aesthetic quality based on individual characteristics of wood. Further development can integrate a generative tool which would streamline the design and fabrication proces further.
keywords	Robotic arm milling, Scanning, Residual wood
series	eCAADe
email
last changed	2024/11/17 22:05

_id	8fba
authors	Hui, K.C.
year	2002
title	Free-form design using axial curve-pairs
source	Computer-Aided Design, Vol. 34 (8) (2002) pp. 583-595
summary	Deformation of 3D shapes usually requires the use of a deformation tool. The freeform deformation technique requires the use of a lattice of control point for deforming anobject. This may require a synchronized movement of the lattice control points in order to obtain the desired effects. The axial deformation technique allows an object to bedeformed by manipulating an axial curve. However, unexpected twist of the object may be obtained. This is a result of the lack of control on the local coordinate frame of thecurve. This paper presents a technique for deforming objects with a set of axial curve-pairs. The use of a curve-pair allows the local coordinate frame to be controlledintuitively. A curve-pair is composed of a primary and an orientation curve. The orientation curve is an approximate offset of the primary curve. A technique is proposed formaintaining the relation between the primary and the orientation curve when the curve-pair is adjusted. By associating a complex 3D object to a curve-pair, the object can bestretched, bended, and twisted intuitively through manipulating the curve-pair. This deformation technique is particularly suitable for manipulating complex shapes (e.g.decorative components) in industrial and aesthetic design, and is also suitable for modelling characters and animals with flexible bodies. Adjusting the curve-pair according tosome motion constraints produces different postures of a character or animal model. This in turn can be used as decorative components for aesthetic design.
keywords	Cross-Sectional Design, Sweeping, Axial Curve-Pair, Axial Deformations, Aesthetic Design, Geometric Modelling
series	journal paper
last changed	2003/05/15 21:33

_id	ddssar0203
id	ddssar0203
authors	Alkass, Sabah and Jrade, Ahmad
year	2002
title	A Web-Based Virtual Reality Model for Preliminary Estimates of Hi-Rise Building Projects
source	Timmermans, Harry (Ed.), Sixth Design and Decision Support Systems in Architecture and Urban Planning - Part one: Architecture Proceedings Avegoor, the Netherlands), 2002
summary	Cost estimating of a construction project at its early stage is considered to be very important task since it will be used as a base to commit or otherwise not to commit funds to that project. Preparation of a reliableand realistic preliminary estimate to aid the decision makers to commit funds for a specific project is a complicated assignment. Traditional methods and operations produced unsatisfactory aid due to lack ofaccuracy especially in the pre-design stage of a project. This participates in the increase of percentage of bankruptcy in the construction industry, which has dramatically climbed up and ranked as 15 percent of thewhole bankruptcies claimed in Canada (Statistic Canada 1998). This paper presents a methodology for developing and a Web-based model to automate preliminary cost estimates for hi-rise buildings. This is achieved by integrating a database with design drawings in a Virtual Reality (VR) environment. The model will automatically generate preliminary estimates after modifying a 3D CAD drawing. It provides the user the option to visualize and simulate the drawing and its cost data through VR environment. Having done that, it will allow owners, architects and cost engineers to view a constructed building project, change its geometric objects and shapes, and accordingly generate a new conceptual cost estimate.
series	DDSS
last changed	2003/11/21 15:15

_id	1d66
authors	Asanowicz, Aleksander
year	2002
title	Hybrid Design Environment
doi	https://doi.org/10.52842/conf.ecaade.2002.572
source	Connecting the Real and the Virtual - design e-ducation [20th eCAADe Conference Proceedings / ISBN 0-9541183-0-8] Warsaw (Poland) 18-20 September 2002, pp. 572-576
summary	This paper discusses some preliminary ideas concerning new design environment or environment of designing. Main thesis of this paper is that process of creation and perception of architecture proceed between Real and Virtual. Architecture is created by analog and/or digital media. A the result we have the multitude and diversity of spaces and tools. Defining these terms is important for understanding a new process of design and a new space of designing. It gives us possibilities to create the new design environment, in which creation of architectural form may be considered as an integrated process connecting the analog, the digital, the real and the virtual. Architectural space, as we know it from physical environments, is supplemented by a virtual space. Physical, architectural and virtual spaces share very similar features in simulation. In virtual models, the boundary between the representation of physical sites and imaginary, virtual sites is vanishing rapidly, resulting in a new reality.
series	eCAADe
email
last changed	2022/06/07 07:54

_id	5422
authors	Barría, H., Lagos, R. and Munoz, Chr.
year	2002
title	The Inter-Media Space
doi	https://doi.org/10.52842/conf.ecaade.2002.584
source	Connecting the Real and the Virtual - design e-ducation [20th eCAADe Conference Proceedings / ISBN 0-9541183-0-8] Warsaw (Poland) 18-20 September 2002, pp. 584-587
summary	This paper explores the juxtaposition between architectonic space and virtual environments. It establishes the hypothesis that the intersection of virtual environments with our common life causes a break-up of time and space. Virtual environments are the last and most integral part of the technological revolution, becoming a parallel world, an unlimited extension of our limited world. The spatial and temporal juxtaposition of these two realities creates a new reality of being “inbetween”, it reveals the “inter-media”. This “inter-media” reality is an issue for architecture of our time, and it still lacks of responses.
series	eCAADe
email
last changed	2022/06/07 07:54

_id	263a
authors	Bermúdez, Julio
year	2002
title	Implicaciones Arquitectónicas de La Naturaleza del Hacer en Ambientes Digitales [Architectonic Implications of the Nature of the Digital Atmosphere ]
source	SIGraDi 2002 - [Proceedings of the 6th Iberoamerican Congress of Digital Graphics] Caracas (Venezuela) 27-29 november 2002, pp. 142-145
summary	Architectural Implications of the Nature of Making in Digital Environments There exists an a-priori relationship between the basic structural constrains of an environment and the types of construction that may evolve there. For instance, the inexorable laws of nature have caused architecture to develop as a physical, stable, containing and inert object. Hence there are good reasons to study how cyberspace with its different ontological foundations may define the architecture to be built there. This examination may be best accomplished by concentrating in how what is structurally unique to the cyber impacts architectural design This paper investigates the ontology of construction in cyberspace by analyzing ordinary digital laws that defy reality. The findings both challenge our traditional conceptions of architecture and guide us toward totally unprecedented design potentials. The goal is to begin building a fundamental theory of architectural space, design and construction applicable to cyberspace.
series	SIGRADI
email
last changed	2016/03/10 09:47

_id	c1f5
authors	Blaszczyszyn, Maciej
year	2002
title	Day-to-day Reality of Web-based Collaboration - Tools among European Architect Professionals
doi	https://doi.org/10.52842/conf.ecaade.2002.110
source	Connecting the Real and the Virtual - design e-ducation [20th eCAADe Conference Proceedings / ISBN 0-9541183-0-8] Warsaw (Poland) 18-20 September 2002, pp. 110-113
summary	On behalf of phenomenal advantages of project extranet technology You can believe in improving communication among professionals in design and construction industry. But until now, the reality appears not as good. It is technological irony, as evidenced in below presented survey, that advanced solutions for a better collaboration may set up unbreakable barriers. Therefore knowledge of everyday reality in the field of webbased collaboration tools use is critical to all participants of this process, commercial as well academic ones. It is especially important to all European professionals, who are aware of consequences of extending in nearest future borders of European Union, the second biggest market in the world.
series	eCAADe
email
last changed	2022/06/07 07:52

_id	ee65
authors	Bourdakis, Vassilis and Charitos, Dimitris
year	2002
title	Teaching Virtual Environment Design
doi	https://doi.org/10.52842/conf.ecaade.2002.042
source	Connecting the Real and the Virtual - design e-ducation [20th eCAADe Conference Proceedings / ISBN 0-9541183-0-8] Warsaw (Poland) 18-20 September 2002, pp. 42-49
summary	In a previous paper, the authors considered the design and development of virtual environments (VEs) pointing out the need for a new direction within architectural education, leading towards a generation of VE architects. It was suggested that there is an urgent need for educating practitioners who will contribute to the design of 3D content for multimedia and virtual reality applications. This paper focuses on the application of these principles and ideas into the structure and methodology of three VE design courses, taught by the authors. These courses are by no means suggested as exhaustive examples of teaching this subject. They are seen as preliminary approaches, adapting to the educational context they are integrated within. Bearing in mind the problems relating to teaching large numbers of students with a design studio approach, difficult concepts, resources availability, fighting misconceptions, techno-phobia the following areas are discussed in the hope that they will contribute to VE design curricula in the near future.
series	eCAADe
email
last changed	2022/06/07 07:54

_id	3d67
authors	Breen, J., Nottrot, R. and Stellingwerff, M.
year	2002
title	Relating to the ‘real’ Perceptions of Computer Aided and Physical Modelling
doi	https://doi.org/10.52842/conf.ecaade.2002.134
source	Connecting the Real and the Virtual - design e-ducation [20th eCAADe Conference Proceedings / ISBN 0-9541183-0-8] Warsaw (Poland) 18-20 September 2002, pp. 134-138
summary	Designing - giving form to new objects or environments - is largely a question of anticipating the workings of spatial and material environments, which can become ‘reality’ only by being built. Until ‘realized’ a design is essentially a figment of the designer’s imagination, although his or her ideas may be laid down and conveyed to others via specialized design media. In this way impressions of the design may be shared with clients, colleagues or other ‘actors’ in the design process. Such products of the designer’s imaging process can be relatively abstract or begin to approach - future - reality. Form & Media research can be ‘revealing’, stimulating insights concerning preferences, working processes and the effects of products of the designer’s imagination. In the past ten years we have gained considerable practical experience with both virtual and tangible (scale) models. We have compared different techniques in conference workshops, within educational settings and in our Form & Media research laboratory. The research projects ranged from the development of practical techniques and working methods to protocol analyses of designing architects. This contribution draws comparisons between different computer aided modelling techniques, with an indication of their perspectives, making use of the experience gained from various experiments in an educational context, and will highlight the potentials for different combinations of digital and physical modelling techniques.
series	eCAADe
email
last changed	2022/06/07 07:54

_id	1389
authors	Bustos, Gabriela L. and Burgos, Iván P.
year	2002
title	Desarrollo y Aplicabilidad de Menús Virtuales en VRML [Architectonic Development and Applicability of Virtual Menus in VRML]
source	SIGraDi 2002 - [Proceedings of the 6th Iberoamerican Congress of Digital Graphics] Caracas (Venezuela) 27-29 november 2002, pp. 199-202
summary	The Virtual Reality Modeling Language (VRML), has allowed extend all of its resources and possibilities for Architectural Applications under the same Virtual Reality’s technology platform. In order to take advantages of its possibilities, this resource focus on exposes the development and application of virtual menus in VRML and Java Script as a first step for the creation of Synthetic Environment Laboratory in the faculty of Architecture and Design of University of Zulia, Venezuela. It presents in short, how algorithms were defined to design the menus, the use of a program in Visual Basic that permit addition of virtual menus toany WRL file, without any programming approach, as well as specific samples of applicability of the menus developed in a VRMLenvironment and how they are included in a methodological model of architectural design.
keywords	virtual reality, synthetic environments, architectural design, inmersive projection systems.
series	SIGRADI
email
last changed	2016/03/10 09:47

_id	ddssar0207
id	ddssar0207
authors	Conti, G. and Ucelli, G.
year	2002
title	A Java3D Tool for Real-Time Collaboration in a Virtual Reality CAADEnvironment
source	Timmermans, Harry (Ed.), Sixth Design and Decision Support Systems in Architecture and Urban Planning - Part one: Architecture Proceedings Avegoor, the Netherlands), 2002
summary	Today the development of network-based virtual communities and the use of avatars have brought a new level of complexity to the meaning of virtuality, providing the technology for remote presence and collaborative experiences. In this project the intention was to pursue this articulated vision of VR in order to assist the design profession during the early stages of the design process. The objective was to provide a tool that is capable of creating 3D shapes in a shared VR environment, thus allowing thedesign and its evolution to be shared. The use of the Java programming language was a natural choice for this project. Because of Java’s performance scalability and hardware independence the concept ofCAAD has been extended, making it possible to create a VR environment that can co-exist between high-end supercomputers and standard PCs. The project is currently being tested using PCs and an SGI system running a Reality Centre. The research reported in this paper describes the architecture and application of software that aims to increase the opportunity for collaboration within virtual worlds and enable effective and transparent information exchange.
series	DDSS
last changed	2003/08/07 16:36

_id	acadia17_202
id	acadia17_202
authors	Cupkova, Dana; Promoppatum, Patcharapit
year	2017
title	Modulating Thermal Mass Behavior Through Surface Figuration
doi	https://doi.org/10.52842/conf.acadia.2017.202
source	ACADIA 2017: DISCIPLINES & DISRUPTION [Proceedings of the 37th Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) ISBN 978-0-692-96506-1] Cambridge, MA 2-4 November, 2017), pp. 202-211
summary	This research builds upon a previous body of work focused on the relationship between surface geometry and heat transfer coefficients in thermal mass passive systems. It argues for the design of passive systems with higher fidelity to multivariable space between performance and perception. Rooted in the combination of form and matter, the intention is to instrumentalize design principles for the choreography of thermal gradients between buildings and their environment from experiential, spatial and topological perspectives (Figure 1). Our work is built upon the premise that complex geometries can be used to improve both the aesthetic and thermodynamic performance of passive building systems (Cupkova and Azel 2015) by actuating thermal performance through geometric parameters primarily due to convection. Currently, the engineering-oriented approach to the design of thermal mass relies on averaged thermal calculations (Holman 2002), which do not adequately describe the nuanced differences that can be produced by complex three-dimensional geometries of passive thermal mass systems. Using a combination of computational fluid dynamic simulations with physically measured data, we investigate the relationship of heat transfer coefficients related to parameters of surface geometry. Our measured results suggest that we can deliberately and significantly delay heat absorption re-radiation purely by changing the geometric surface pattern over the same thermal mass. The goal of this work is to offer designers a more robust rule set for understanding approximate thermal lag behaviors of complex geometric systems, with a focus on the design of geometric properties rather than complex thermal calculations.
keywords	design methods; information processing; physics; smart materials
series	ACADIA
email
last changed	2022/06/07 07:56

_id	a207
authors	Czerner, Jürgen and Gatermann, Harald
year	2002
title	Modeling and rendering virtual architecture by using fisheye-panorama-based images and lightings in HDR-quality
doi	https://doi.org/10.52842/conf.ecaade.2002.569
source	Connecting the Real and the Virtual - design e-ducation [20th eCAADe Conference Proceedings / ISBN 0-9541183-0-8] Warsaw (Poland) 18-20 September 2002, pp. 569-571
summary	We use digitally made spherical panoramas as background for vr-visualisation in architectural sceneries instead of stitched photographs (fisheye-based or serical-mirrorbased). For this reason we had the idea to develop the first fisheye-based digital-scanning panorama-camera together with the manufacturer Spheron. The ultimate step in reaching optimal quality not only as a background but also as a source of lighting the background-image is taken as a HDR-image. The high-dynamic- range-technology was developed by the Californian scientist Paul Devebec. High dynamic photographs contain a broader range of information between the very bright zones down to the very dark zones - a lot more than “normal” photographs (digital and analogue), which are named LDR (low dynamic range in comparison to HDR). Some software-products in the field of cad-visualisation in virtual and augmented reality already enable the use of HDR-images and open a new field of controlling daylight and artificial light simulations with photographed backgrounds instaed of synthetic ones. The combination of digitally produced (scanned) sperical images together with the use of HDR open a wide range of new implementation in the field of architecture, especially in combining synthetic elements in existing buildings, e.g. new interior elements in an existing historical museum).
series	eCAADe
email
last changed	2022/06/07 07:56

_id	ddssar0209
id	ddssar0209
authors	Datta, Sambit
year	2002
title	Managing Design Knowledge with Mixed-Initiative Dialogue
source	Timmermans, Harry (Ed.), Sixth Design and Decision Support Systems in Architecture and Urban Planning - Part one: Architecture Proceedings Avegoor, the Netherlands), 2002
summary	This paper is based on ongoing work in developing interactive interfaces to formal methods for encoding design knowledge. It reports on the development of a shared graphical notation to support user interaction with design knowledge based on mixed-initiative. Mixed-initiativeprovides a model of interaction where both the designer and the knowledge formalism may share responsibility over decisions. The paper discusses how a formal visual notation can support the mixed-initiative mode for developing and managing formal design knowledge. The notation addresses on the dialogue problem between the user and a knowledge basedformalism and illustrates a model of interaction in which the user and the formalism can share and input data through a common shared resource, on a common shared task. The paper demonstrates the use of this notation in common decision tasks and the implications for seamless interaction with design support systems.
series	DDSS
last changed	2003/08/07 16:36

_id	012c
authors	De Araujo, Tereza Cristina Malveira and Rossi, Angela Maria Gabriella
year	2002
title	O real, o virtual e a Internet na era da Informação [The Real, the virtual and the Internet in the Information Age]
source	SIGraDi 2002 - [Proceedings of the 6th Iberoamerican Congress of Digital Graphics] Caracas (Venezuela) 27-29 november 2002, pp. 28-30
summary	Over the last decade, advances in computer graphics plus the growing popularity of the Internet have incorporated the words reality and virtuality into our vocabulary, at the same time, making the distance between the words shorter. In this article, we discuss the two concepts - reality and virtuality - and analyze how this question has affected human communication, specially in the Web environment. This analysis will be used as a basis for research on the impact of “non-presence” in working relationships in a virtual environment, more specifically in the architecture and engineering areas where we find the Web being used as a communication tool for the development of collaborative design between groups involved with the design process of the built environment.
series	SIGRADI
email
last changed	2016/03/10 09:50

_id	f6d6
authors	El Araby, Mostafa
year	2002
title	Possibilities and Constraints of using Virtual Reality in Urban Design
source	CORP 2002, Vienna, pp. 457-463
summary	This study aims at exploring the rapid growth of the use of Virtual Reality techniques in the field of Urban Design. Currently, VirtualReality —the ultimate representation— and Virtual Environments are the most growing fields of information technology and have agreat media attention. This research discusses the possibilities and limitations of applying Virtual Reality (VR) technology inenvironmental simulations for urban design practice. There is evidence to suggest that the use of such technology will enhanceconceivable image of any proposed project at any urban setting for users, designers and clients. Therefore, city officials andadministrators (clients) and the public (users) can reach better decisions regarding proposed projects within their towns and cities.Specifically, this research structured in several interdependent parts: the first part is concerned with the definition of VR as well as abackground of its history and current achievements. Types and components of VR systems are described and traditional simulationtechniques are reviewd. In addition, a discussion of current attempts in incorporating VR in urban design disciplines are presented.This discussion raises the question of appropriateness of the VR techniques in urban design projects. An assesment of both potentialsand limitations of aplying this technique, i.e. VRML (Virtual Reality Modelling Language), are discussed. This study definespotentialities, constraints and problems of using this technique, and recommends future research efforts in the field of using theVirtual Reality as a medium for delivering real content for those interested in the design of the built environment.
series	other
email
more	www.corp.at
last changed	2002/12/19 12:19

_id	1a42
authors	Fjeld, M., Lauche, K., Bichsel, M., Voorhorst, F., Krueger, H., Rauterberg, M.
year	2002
title	Physical and Virtual Tools: Activity Theory Applied to the Design of Groupware
source	Computer Supported Cooperative Work (CSCW), Kluwer
summary	Activity theory is based on the concept of tools mediating between subjects and objects. In this theory, an individual's creative interaction with his or her surroundings can result in the production of tools. When an individual's mental processes are exteriorized in the form of tools - termed objectification - they become more accessible to other people and are therefore useful for social interaction. This paper shows how our understanding of activity theory has shaped our design philosophy for groupware and how we have applied it. Our design philosophy and practice is exemplified by a description of the BUILD-IT system. This is an Augmented Reality system we developed to enhance group work; it is a kind of graspable groupware which supports cooperative planning. The system allows a group of people, co-located around a table, to interact, by means of physical bricks, with models in a virtual three-dimensional (3D) setting. Guided by task analysis, a set of specific tools for different 3D planning and configuration tasks was implemented as part of this system. We investigate both physical and virtual tools. These tools allow users to adjust model height, viewpoint, and scale of the virtual setting. Finally, our design practice is summarized in a set of design guidelines. Based on these guidelines, we reflect on our own design practice and the usefulness of activity theory for design.
series	other
last changed	2003/04/23 15:50

_id	ddssar0211
id	ddssar0211
authors	Fröst, Peter
year	2002
title	Interactive Tools for Collaborative Architectural Design
source	Timmermans, Harry (Ed.), Sixth Design and Decision Support Systems in Architecture and Urban Planning - Part one: Architecture Proceedings Avegoor, the Netherlands), 2002
summary	Today’s rapidly changing society is continuously developing towards an increased demand for multistakeholder knowledge and influence in the architectural planning and design process. Accordingly, we are working with developing and setting up a partner engaged collaborative design process. It includes active collaboration between users, external partners and designers, and visualizations in conceptual design and scenario building. My research is focusing on integrating visualization technology in theseprocesses by application of digital tools. We have developed a working prototype for an interactive design tool. The prototype is an extremely “easy to use” digital modeling tool called “ForeSite Designer.” With this tool one builds one’s own spatial environment with elements on a 2D surface.With one command the 2D layout is exported to a lit-up 3D/Virtual Reality world in the computer game “Half-Life”. ForeSite Designer has lately been used in a series of workshops together with external users. In these processes ForeSite Designer has played a crucial role as an arena of building spatially arranged concepts of future environments. The results show that it works, and, importantly, promotes a collaborative engagement among the users.
series	DDSS
last changed	2003/08/07 16:36

_id	d9de
authors	Fukuda, T., Nagahama, R., Kaga, A. and Sasada, T.
year	2002
title	Collaboration Support System for City Plans or Community Designs Based on VR/CG Technology
doi	https://doi.org/10.52842/conf.caadria.2002.257
source	CAADRIA 2002 [Proceedings of the 7th International Conference on Computer Aided Architectural Design Research in Asia / ISBN 983-2473-42-X] Cyberjaya (Malaysia) 18–20 April 2002, pp. 257-264
summary	This paper reports the collaboration support system for city plans or community designs based on virtual reality (VR) or computer graphics (CG) technology. This time we report to elaborate the extended potable VR equipment and expression method with CG to allow for the realistic viewing of night scenes, and apply to real projects.
series	CAADRIA
email
last changed	2022/06/07 07:50

_id	sigradi2006_e028c
id	sigradi2006_e028c
authors	Griffith, Kenfield; Sass, Larry and Michaud, Dennis
year	2006
title	A strategy for complex-curved building design:Design structure with Bi-lateral contouring as integrally connected ribs
source	SIGraDi 2006 - [Proceedings of the 10th Iberoamerican Congress of Digital Graphics] Santiago de Chile - Chile 21-23 November 2006, pp. 465-469
summary	Shapes in designs created by architects such as Gehry Partners (Shelden, 2002), Foster and Partners, and Kohn Peterson and Fox rely on computational processes for rationalizing complex geometry for building construction. Rationalization is the reduction of a complete geometric shape into discrete components. Unfortunately, for many architects the rationalization is limited reducing solid models to surfaces or data on spread sheets for contractors to follow. Rationalized models produced by the firms listed above do not offer strategies for construction or digital fabrication. For the physical production of CAD description an alternative to the rationalized description is needed. This paper examines the coupling of digital rationalization and digital fabrication with physical mockups (Rich, 1989). Our aim is to explore complex relationships found in early and mid stage design phases when digital fabrication is used to produce design outcomes. Results of our investigation will aid architects and engineers in addressing the complications found in the translation of design models embedded with precision to constructible geometries. We present an algorithmically based approach to design rationalization that supports physical production as well as surface production of desktop models. Our approach is an alternative to conventional rapid prototyping that builds objects by assembly of laterally sliced contours from a solid model. We explored an improved product description for rapid manufacture as bilateral contouring for structure and panelling for strength (Kolarevic, 2003). Infrastructure typically found within aerospace, automotive, and shipbuilding industries, bilateral contouring is an organized matrix of horizontal and vertical interlocking ribs evenly distributed along a surface. These structures are monocoque and semi-monocoque assemblies composed of structural ribs and skinning attached by rivets and adhesives. Alternative, bi-lateral contouring discussed is an interlocking matrix of plywood strips having integral joinery for assembly. Unlike traditional methods of building representations through malleable materials for creating tangible objects (Friedman, 2002), this approach constructs with the implication for building life-size solutions. Three algorithms are presented as examples of rationalized design production with physical results. The first algorithm [Figure 1] deconstructs an initial 2D curved form into ribbed slices to be assembled through integral connections constructed as part of the rib solution. The second algorithm [Figure 2] deconstructs curved forms of greater complexity. The algorithm walks along the surface extracting surface information along horizontal and vertical axes saving surface information resulting in a ribbed structure of slight double curvature. The final algorithm [Figure 3] is expressed as plug-in software for Rhino that deconstructs a design to components for assembly as rib structures. The plug-in also translates geometries to a flatten position for 2D fabrication. The software demonstrates the full scope of the research exploration. Studies published by Dodgson argued that innovation technology (IvT) (Dodgson, Gann, Salter, 2004) helped in solving projects like the Guggenheim in Bilbao, the leaning Tower of Pisa in Italy, and the Millennium Bridge in London. Similarly, the method discussed in this paper will aid in solving physical production problems with complex building forms. References Bentley, P.J. (Ed.). Evolutionary Design by Computers. Morgan Kaufman Publishers Inc. San Francisco, CA, 1-73 Celani, G, (2004) “From simple to complex: using AutoCAD to build generative design systems” in: L. Caldas and J. Duarte (org.) Implementations issues in generative design systems. First Intl. Conference on Design Computing and Cognition, July 2004 Dodgson M, Gann D.M., Salter A, (2004), “Impact of Innovation Technology on Engineering Problem Solving: Lessons from High Profile Public Projects,” Industrial Dynamics, Innovation and Development, 2004 Dristas, (2004) “Design Operators.” Thesis. Massachusetts Institute of Technology, Cambridge, MA, 2004 Friedman, M, (2002), Gehry Talks: Architecture + Practice, Universe Publishing, New York, NY, 2002 Kolarevic, B, (2003), Architecture in the Digital Age: Design and Manufacturing, Spon Press, London, UK, 2003 Opas J, Bochnick H, Tuomi J, (1994), “Manufacturability Analysis as a Part of CAD/CAM Integration”, Intelligent Systems in Design and Manufacturing, 261-292 Rudolph S, Alber R, (2002), “An Evolutionary Approach to the Inverse Problem in Rule-Based Design Representations”, Artificial Intelligence in Design ’02, 329-350 Rich M, (1989), Digital Mockup, American Institute of Aeronautics and Astronautics, Reston, VA, 1989 Schön, D., The Reflective Practitioner: How Professional Think in Action. Basic Books. 1983 Shelden, D, (2003), “Digital Surface Representation and the Constructability of Gehry’s Architecture.” Diss. Massachusetts Institute of Technology, Cambridge, MA, 2003 Smithers T, Conkie A, Doheny J, Logan B, Millington K, (1989), “Design as Intelligent Behaviour: An AI in Design Thesis Programme”, Artificial Intelligence in Design, 293-334 Smithers T, (2002), “Synthesis in Designing”, Artificial Intelligence in Design ’02, 3-24 Stiny, G, (1977), “Ice-ray: a note on the generation of Chinese lattice designs” Environmental and Planning B, volume 4, pp. 89-98
keywords	Digital fabrication; bilateral contouring; integral connection; complex-curve
series	SIGRADI
email
last changed	2016/03/10 09:52

For more results click below: