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	ecaade2023_259
id	ecaade2023_259
authors	Sonne-Frederiksen, Povl Filip, Larsen, Niels Martin and Buthke, Jan
year	2023
title	Point Cloud Segmentation for Building Reuse - Construction of digital twins in early phase building reuse projects
source	Dokonal, W, Hirschberg, U and Wurzer, G (eds.), Digital Design Reconsidered - Proceedings of the 41st Conference on Education and Research in Computer Aided Architectural Design in Europe (eCAADe 2023) - Volume 2, Graz, 20-22 September 2023, pp. 327–336
doi	https://doi.org/10.52842/conf.ecaade.2023.2.327
summary	Point cloud processing has come a long way in the past years. Advances in computer vision (CV) and machine learning (ML) have enabled its automated recognition and processing. However, few of those developments have made it through to the Architecture, Engineering and Construction (AEC) industry. Here, optimizing those workflows can reduce time spent on early-phase projects, which otherwise could be spent on developing innovative design solutions. Simplifying the processing of building point cloud scans makes it more accessible and therefore, usable for design, planning and decision-making. Furthermore, automated processing can also ensure that point clouds are processed consistently and accurately, reducing the potential for human error. This work is part of a larger effort to optimize early-phase design processes to promote the reuse of vacant buildings. It focuses on technical solutions to automate the reconstruction of point clouds into a digital twin as a simplified solid 3D element model. In this paper, various ML approaches, among others KPConv Thomas et al. (2019), ShapeConv Cao et al. (2021) and Mask-RCNN He et al. (2017), are compared in their ability to apply semantic as well as instance segmentation to point clouds. Further it relies on the S3DIS Armeni et al. (2017), NYU v2 Silberman et al. (2012) and Matterport Ramakrishnan et al. (2021) data sets for training. Here, the authors aim to establish a workflow that reduces the effort for users to process their point clouds and obtain object-based models. The findings of this research show that although pure point cloud-based ML models enable a greater degree of flexibility, they incur a high computational cost. We found, that using RGB-D images for classifications and segmentation simplifies the complexity of the ML model but leads to additional requirements for the data set. These can be mitigated in the initial process of capturing the building or by extracting the depth data from the point cloud.
keywords	Point Clouds, Machine Learning, Segmentation, Reuse, Digital Twins
series	eCAADe
email
last changed	2023/12/10 10:49

_id	caadria2012_108
id	caadria2012_108
authors	Gerber, David and Shih-Hsin (Eve) Lin
year	2012
title	Designing-in performance through parameterisation, automation, and evolutionary algorithms: ‘H.D.S. BEAGLE 1.0’
source	Proceedings of the 17th International Conference on Computer Aided Architectural Design Research in Asia / Chennai 25-28 April 2012, pp. 141–150
doi	https://doi.org/10.52842/conf.caadria.2012.141
summary	Design is both a goal oriented and decision making activity. It is ill-defined by nature as designing includes weighing and understanding trade-offs amongst soft and hard objectives or in other words vague or imprecise and computationally definable criteria and goals. In this regard designers in most contemporary practices face a crisis of sorts. How do we achieve performance or sustainability under these large degrees of uncertainty or with limited design cycle times? Fundamentally design collaborations, teams of domain experts, are not typically given enough time to design-explore, generate design alternatives in order to find or evolve solution quality through expansive design search spaces. Given these limitations of time and the ever more complex criteria for ‘designing-in’ performance our research approach provides a computational strategy to expand the solution space as well as pre-sort and qualify candidate designs. The research presents a novel methodology and technology framework and an initial implementation that was developed to enhance the human activity of design exploration, domain integration, and further evolve design process for performance goals. The research does so through generating and optimising a highly correlated solution space in conjunction with a near simultaneous evaluation of design alternative fitness.
keywords	Parametric design; multi-disciplinary design optimisation (MDO); evolutionary algorithms; performative design process
series	CAADRIA
email
last changed	2022/06/07 07:51

_id	acadia12_67
id	acadia12_67
authors	Gerber, Dr. David Jason ; Lin, Shih-Hsin
year	2012
title	Synthesizing Design Performance: An Evolutionary Approach to Multidisciplinary Design Search
source	ACADIA 12: Synthetic Digital Ecologies [Proceedings of the 32nd Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) ISBN 978-1-62407-267-3] San Francisco 18-21 October, 2012), pp. 67-75
doi	https://doi.org/10.52842/conf.acadia.2012.067
summary	Design is a goal oriented decision-making activity. Design is ill defined and requiring of synthetic approaches to weighing and understanding tradeoffs amongst soft and hard objectives, and the imprecise and or computationally explicit criteria and goals. In this regard designers in contemporary practice face a crisis of sorts. How do we achieve performance under large degrees of uncertainty and limited design cycle time? How do we better design for integrating performance? Fundamentally design teams, are not typically given enough time nor the best tools to design explore, to generate design alternatives, and then evolve solution quality to search for best fit through expansive design solution spaces. Given the complex criteria for defining performance in architecture our research approach experiments upon an evolutionary and integrative computational strategy to expand the solution space of a design problem as well as pre-sort and qualify candidate designs. We present technology and methodology that supports rapid development of design problem solution spaces in which three design domains objectives have multi-directional impact on each other. The research describes the use of an evolutionary approach in which a genetic algorithm is used as a means to automate the design alternative population as well as to facilitate multidisciplinary design domain optimization. The paper provides a technical description of the prototype design, one that integrates associative parametric modeling with an energy use intensity evaluation and with a financial pro forma. The initial results of the research are presented and analyzed including impacts on design process; the impacts on design uncertainty and design cycle latency; and the affordances for ‘designing-in’ performance and managing project complexity. A summary discussion is developed which describes a future cloud implementation and the future extensions into other domains, scales, tectonic and system detail.
keywords	Parametric Design , Domain Integration , Design Methods , Multidisciplinary Design Optimization (MDO) , Evolutionary Algorithms , Design Decision Support , Generative Design
series	ACADIA
type	normal paper
email
last changed	2022/06/07 07:51

_id	ascaad2012_011
id	ascaad2012_011
authors	Hemsath, Timothy L.
year	2012
title	Hybridizing Digital Fabrication Techniques
source	CAAD \| INNOVATION \| PRACTICE [6th International Conference Proceedings of the Arab Society for Computer Aided Architectural Design (ASCAAD 2012 / ISBN 978-99958-2-063-3], Manama (Kingdom of Bahrain), 21-23 February 2012, pp. 103-114
summary	The use of digital fabrication in the production and making of architecture is becoming a prevalent vehicle for the design process. As a result, there is a growing demand for computer-aided design (CAD) skills, computer-aided manufacturing (CAM) logic, parametric modeling and digital fabrication in student education. This paper will highlight three student projects that look to ingrate computational prototyping with digital fabrication techniques in the production of architecture. The goal is to hybridize fabrication techniques of sectioning, tessellating and folding to educate students in CAD, CAM, parametric modeling and digital fabrication. Rather than repeating conventional approaches or recreating from precedent, mixing techniques challenges students to understand the CAD technique or parameters for modeling, translate for CAM production and deal with real world constraints of materials, time and tectonics. In the end, these projects are critical of the digital and projectively speculate on the architectural detail in an age of digital ubiquity.
series	ASCAAD
email
more	http://www.ascaad.org/conference/2012/papers/ascaad2012_011.pdf
last changed	2012/05/15 20:46

_id	acadia12_47
id	acadia12_47
authors	Aish, Robert ; Fisher, Al ; Joyce, Sam ; Marsh, Andrew
year	2012
title	Progress Towards Multi-Criteria Design Optimisation Using Designscript With Smart Form, Robot Structural Analysis and Ecotect Building Performance Analysis"
source	ACADIA 12: Synthetic Digital Ecologies [Proceedings of the 32nd Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) ISBN 978-1-62407-267-3] San Francisco 18-21 October, 2012), pp. 47-56
doi	https://doi.org/10.52842/conf.acadia.2012.047
summary	Important progress towards the development of a system that enables multi-criteria design optimisation has recently been demonstrated during a research collaboration between Autodesk’s DesignScript development team, the University of Bath and the engineering consultancy Buro Happold. This involved integrating aspects of the Robot Structural Analysis application, aspects of the Ecotect building performance application and a specialist form finding solver called SMART Form (developed by Buro Happold) with DesignScript to create a single computation environment. This environment is intended for the generation and evaluation of building designs against both structural and building performance criteria, with the aim of expediently supporting computational optimisation and decision making processes that integrate across multiple design and engineering disciplines. A framework was developed to enable the integration of modeling environments with analysis and process control, based on the authors’ case studies and experience of applied performance driven design in practice. This more generalised approach (implemented in DesignScript) enables different designers and engineers to selectively configure geometry definition, form finding, analysis and simulation tools in an open-ended system without enforcing any predefined workflows or anticipating specific design strategies and allows for a full range of optimisation and decision making processes to be explored. This system has been demonstrated to practitioners during the Design Modeling Symposium, Berlin in 2011 and feedback from this has suggested further development.
keywords	Design Optimisation , Scripting , Form Finding , Structural Analysis , Building Performance
series	ACADIA
type	normal paper
email
last changed	2022/06/07 07:54

_id	ascaad2012_003
id	ascaad2012_003
authors	Elseragy, Ahmed
year	2012
title	Creative Design Between Representation and Simulation
source	CAAD \| INNOVATION \| PRACTICE [6th International Conference Proceedings of the Arab Society for Computer Aided Architectural Design (ASCAAD 2012 / ISBN 978-99958-2-063-3], Manama (Kingdom of Bahrain), 21-23 February 2012, pp. 11-12
summary	Milestone figures of architecture all have their different views on what comes first, form or function. They also vary in their definitions of creativity. Apparently, creativity is very strongly related to ideas and how they can be generated. It is also correlated with the process of thinking and developing. Creative products, whether architectural or otherwise, and whether tangible or intangible, are originated from ‘good ideas’ (Elnokaly, Elseragy and Alsaadani, 2008). On one hand, not any idea, or any good idea, can be considered creative but, on the other hand, any creative result can be traced back to a good idea that initiated it in the beginning (Goldschmit and Tatsa, 2005). Creativity in literature, music and other forms of art is immeasurable and unbounded by constraints of physical reality. Musicians, painters and sculptors do not create within tight restrictions. They create what becomes their own mind’s intellectual property, and viewers or listeners are free to interpret these creations from whichever angle they choose. However, this is not the case with architects, whose creations and creative products are always bound with different physical constraints that may be related to the building location, social and cultural values related to the context, environmental performance and energy efficiency, and many more (Elnokaly, Elseragy and Alsaadani, 2008). Remarkably, over the last three decades computers have dominated in almost all areas of design, taking over the burden of repetitive tasks so that the designers and students can focus on the act of creation. Computer aided design has been used for a long time as a tool of drafting, however in this last decade this tool of representation is being replaced by simulation in different areas such as simulation of form, function and environment. Thus, the crafting of objects is moving towards the generation of forms and integrated systems through designer-authored computational processes. The emergence and adoption of computational technologies has significantly changed design and design education beyond the replacement of drawing boards with computers or pens and paper with computer-aided design (CAD) computer-aided engineering (CAE) applications. This paper highlights the influence of the evolving transformation from Computer Aided Design (CAD) to Computational Design (CD) and how this presents a profound shift in creative design thinking and education. Computational-based design and simulation represent new tools that encourage designers and artists to continue progression of novel modes of design thinking and creativity for the 21st century designers. Today computational design calls for new ideas that will transcend conventional boundaries and support creative insights through design and into design. However, it is still believed that in architecture education one should not replace the design process and creative thinking at early stages by software tools that shape both process and final product which may become a limitation for creative designs to adapt to the decisions and metaphors chosen by the simulation tool. This paper explores the development of Computer Aided Design (CAD) to Computational Design (CD) Tools and their impact on contemporary design education and creative design.
series	ASCAAD
email
more	http://www.ascaad.org/conference/2012/papers/ascaad2012_003.pdf
last changed	2012/05/15 20:46

_id	ecaade2018_243
id	ecaade2018_243
authors	Gardner, Nicole
year	2018
title	Architecture-Human-Machine (re)configurations - Examining computational design in practice
source	Kepczynska-Walczak, A, Bialkowski, S (eds.), Computing for a better tomorrow - Proceedings of the 36th eCAADe Conference - Volume 2, Lodz University of Technology, Lodz, Poland, 19-21 September 2018, pp. 139-148
doi	https://doi.org/10.52842/conf.ecaade.2018.2.139
summary	This paper outlines a research project that explores the participation in, and perception of, advanced technologies in architectural professional practice through a sociotechnical lens and presents empirical research findings from an online survey distributed to employees in five large-scale architectural practices in Sydney, Australia. This argues that while the computational design paradigm might be well accepted, understood, and documented in academic research contexts, the extent and ways that computational design thinking and methods are put-into-practice has to date been less explored. In engineering and construction, technology adoption studies since the mid 1990s have measured information technology (IT) use (Howard et al. 1998; Samuelson and Björk 2013). In architecture, research has also focused on quantifying IT use (Cichocka 2017), as well as the examination of specific practices such as building information modelling (BIM) (Cardoso Llach 2017; Herr and Fischer 2017; Son et al. 2015). With the notable exceptions of Daniel Cardoso Llach (2015; 2017) and Yanni Loukissas (2012), few scholars have explored advanced technologies in architectural practice from a sociotechnical perspective. This paper argues that a sociotechnical lens can net valuable insights into advanced technology engagement to inform pedagogical approaches in architectural education as well as strategies for continuing professional development.
keywords	Computational design; Sociotechnical system; Technology adoption
series	eCAADe
email
last changed	2022/06/07 07:51

_id	ijac201210106
id	ijac201210106
authors	Henriques, Goncalo Castro
year	2012
title	TetraScript: A Responsive Pavilion, From Generative Design to Automation
source	International Journal of Architectural Computing vol. 10 - no. 1, 87-104
summary	This research is part of a broader investigation into the use of digital technologies in the Architecture, Engineering and Construction (AEC) sector. The intention is to improve the ability of buildings to respond to context by proposing a skylight system that can adjust to external environmental conditions and internal functional demands. We call this responsive ability customisation. The proposed skylight system can adapt to different geometries, uses, locations, times of day and other contextual conditions. Customisation can be achieved by static and dynamic processes. Static customisation is achieved during the design process by selecting the form and size of the building, as well as the number, arrangement and size of the skylights, among other features. Dynamic customisation is accomplished after construction by changing the skylight aperture in real-time to control interior conditions. This paper focuses on the static process to find an adequate skylight configuration for a case-study pavilion.
series	journal
last changed	2019/07/30 10:55

_id	ecaade2012_292
id	ecaade2012_292
authors	Reinhardt, Dagmar ; Martens, William ; Miranda, Luis
year	2012
title	Acoustic Consequences of Performative Structures Modelling Dependencies between Spatial Formation and Acoustic Behaviour
source	Achten, Henri; Pavlicek, Jiri; Hulin, Jaroslav; Matejovska, Dana (eds.), Digital Physicality - Proceedings of the 30th eCAADe Conference - Volume 1 / ISBN 978-9-4912070-2-0, Czech Technical University in Prague, Faculty of Architecture (Czech Republic) 12-14 September 2012, pp. 577-586
doi	https://doi.org/10.52842/conf.ecaade.2012.1.577
wos	WOS:000330322400059
summary	The paper discusses an interdisciplinary exchange between parametric design and acoustic simulation. It reviews a strategic development of temporary dynamic structures that can be manipulated by intersecting variations of formation in generative architecture with acoustic simulation. The research investigates drivers that interface knowledge between parametric design, structural engineering and fabrication, interaction design and acoustics, and theatre and performance. It reviews the simulation of a temporary theatre installation into an existent industrial hall, whereby different formation of a modular structure are explored, and the acoustic effects of this installation are evaluated in relation to an enhancement of the audiences spatial and acoustic experience. The research goes beyond the morphological, aesthetic or structural values that have become key aspects of contemporary digital architecture, and relates them to the field of auralisation (forecasting acoustic behaviour). In that manner, the simulation and analysis of a future (material, spatial) objects is developed through the communication of an interdisciplinary team, thus exploring synergetic qualities of the physical and the digital.
keywords	Computational design; generative geometries; acoustic simulation
series	eCAADe
email
last changed	2022/06/07 08:00

_id	sigradi2012_83
id	sigradi2012_83
authors	Valdes, Francisco; Sun, Yuming
year	2012
title	Parametric Natural Ventilation Simulation with Real-time Geometric Feedback (Nat-Vent)
source	SIGraDi 2012 [Proceedings of the 16th Iberoamerican Congress of Digital Graphics] Brasil - Fortaleza 13-16 November 2012, pp. 436-439
summary	Nat-Vent is a modeling system to parametrically simulate natural ventilation of buildings in early stages of design. The Nat-Vent approach comprehends a set of architecture design tools that were connected to an equation solver through a Model Based System Engineering tool (SysML). SysML, which is a general purpose modeling language for systems engineering, is able to mathematically interoperate between architects and engineers while keeping model consistency between them. This implementation enhances the architectural side of design by offering a simple ventilation tool that can be used by architects and engineers, and also delivers geometric feedback from ventilation performance-based decisions.
keywords	parametric modeling; building technology; natural ventilation simulation; interoperability in building design; Model Based System Engineering.
series	SIGRADI
email
last changed	2016/03/10 10:02

_id	acadia12_325
id	acadia12_325
authors	Chronis, Angelos ; Tsigkari, Martha ; Davis, Adam ; Aish, Francis
year	2012
title	Design Systems, Ecology, and Time Angelos Chronis, Martha Tsigkari, Adam Davis, Francis Aish"
source	ACADIA 12: Synthetic Digital Ecologies [Proceedings of the 32nd Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) ISBN 978-1-62407-267-3] San Francisco 18-21 October, 2012), pp. 325-332
doi	https://doi.org/10.52842/conf.acadia.2012.325
summary	Discussion of architecture in ecological terms usually focuses on the spatial and material dimensions of design practice. Yet there is an equally critical temporal dimension in ecology that is just as relevant to design. At the micro scale is the question of 'real time' feedback from our design systems. At the macro scale is the issue of sustainability, in other words long term -- and potentially disastrous -- feedback from terrestrial ecosystems. In between are numerous different units for quantizing time in design and computation. In this paper, we examine some of these units -- 'real time', 'design time', 'development time' -- to suggest how they interact with the ecology of design technology and practice. We contextualize this discussion by reference to relevant literature from the field of ecology and to our work applying custom design and analysis tools on architectural projects within a large interdisciplinary design practice.
keywords	real time feedback , performance driven design , integration
series	ACADIA
type	normal paper
email
last changed	2022/06/07 07:54

_id	caadria2012_109
id	caadria2012_109
authors	Gerber, David; Mohamed M. ElSheikh and Aslihan Senel Solmaz
year	2012
title	Associative parametric design and financial optimisation - 'Cash Back 1.0': Parametric design for visualising and optimising Return on Investment for early stage design decision-making
source	Proceedings of the 17th International Conference on Computer Aided Architectural Design Research in Asia / Chennai 25-28 April 2012, pp. 47–56
doi	https://doi.org/10.52842/conf.caadria.2012.047
summary	Cash-Back 1.0 presents research on the development of methodologies and technologies to simulate the cause and effect of early stage geometric design alternatives of buildings and the real time results upon financial pro-forma. Through the encoding of design rules and their associative relationships to financial pro-forma the research illustrates enhanced visualization of early stage building design decisions and their cumulative impact on financial goals and constraints. The research presents value an associative parametric design process affords often-disparate domains through correlation and visualization. The paper describes incorporation of a feedback loop between pro-forma and geometric models in conjunction with an optimization method. Given the level of uncertainty in early stage design decision making the research contributes partial solutions to the domain problems of design decision uncertainty and design cycle latency and is further argumentation for increased use of parametric design methods and automation to support design domain integration.
keywords	Parametric design; genetic algorithm; design decision support; multi domain optimisation; domain integration
series	CAADRIA
email
last changed	2022/06/07 07:51

_id	ecaade2012_152
id	ecaade2012_152
authors	Krieg, Oliver David; Mihaylov, Boyan; Schwinn, Tobias; Reichert, Steffen; Menges, Achim
year	2012
title	Computational Design of Robotically Manufactured Plate Structures Based on Biomimetic Design Principles Derived from Clypeasteroida
source	Achten, Henri; Pavlicek, Jiri; Hulin, Jaroslav; Matejovska, Dana (eds.), Digital Physicality - Proceedings of the 30th eCAADe Conference - Volume 2 / ISBN 978-9-4912070-3-7, Czech Technical University in Prague, Faculty of Architecture (Czech Republic) 12-14 September 2012, pp. 531-540
doi	https://doi.org/10.52842/conf.ecaade.2012.2.531
wos	WOS:000330320600056
summary	The paper presents the current development of an ongoing research project about the integration of robotic fabrication strategies in computational design through morphological and functional principles derived from natural systems. Initially, a developed plate structure material system based on robotically fabricated fi nger joints is being informed by biomimetic principles from the sea urchin Clypeasteroida in order to be able to adapt effi ciently to its building environment. Consequently, the paper’s main focus lies on translating the biomimetic design principles into a computational design tool, also integrating fabrication parameters as well as structural and architectural demands. The design tool’s capability to integrate these parameters is shown by the design, development and realization of a full-scale research pavilion. The paper concludes with discussing the performative capacity of the developed material system and the introduced methodology.
keywords	Biomimetics; Digital Simulation; Parametric Design; Robotic Manufacturing
series	eCAADe
email
last changed	2022/06/07 07:51

_id	acadia12_209
id	acadia12_209
authors	Larsen, Niels Martin ; Pedersen, Ole Egholm ; Pigram, Dave
year	2012
title	A Method for the Realization of Complex Concrete Gridshell Structures in Pre-Cast Concrete
source	ACADIA 12: Synthetic Digital Ecologies [Proceedings of the 32nd Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) ISBN 978-1-62407-267-3] San Francisco 18-21 October, 2012), pp. 209-216
doi	https://doi.org/10.52842/conf.acadia.2012.209
summary	This paper describes a method for the design and fabrication of complex funicular structures fromdiscrete precast concrete elements. The research proposes that through the integration of digitalform-finding techniques, computational file-to-fabrication workflows, and innovative sustainableconcrete casting techniques, complex funicular structures can be constructed using prefabricatedelements in a practical, affordable, and materially efficient manner.A recent case study is examined, in which the methodology has been used to construct a pavilion.Custom-written dynamic relaxation software was used to define the overall form and successivealgorithms; it then defined each component’s unique geometry, unrolled into flat shapes, andnested all parts into cut-files. PETG plastic sheets were two-dimensionally laser cut and folded toproduce the unique casting molds. The case study was carried out in collaboration between theAarhus School of Architecture and the University of Technology, Sydney (UTS). Basic research incasting techniques defined the framework for the design process, and a custom-written dynamicrelaxation software application became the primary form-generating tool in the design process ofa constructed pavilion. Fabrication and construction constraints were embedded within the designof both the overall structure and its components. Finite element analysis [FEA] was completed inorder to verify the form-finding results, to ensure structural stability, and to direct adjustments ofthe structure during the design process.The constructed pavilion case study, constructed in a very short time, for low cost and with relativelyunskilled labor, demonstrates that the integration of algorithmic form-finding techniques, CNCfabrication workflows, and the use of innovative PETG folded-mold techniques enables thepractical realization of freeform funicular structures in precast concrete.
keywords	Gridshells , pre-cast concrete , folded moulds , dynamic relaxation , file-to-factory , form-finding , parametric modeling , computational design , zero-waste production
series	ACADIA
type	normal paper
email
last changed	2022/06/07 07:52

_id	acadia12_87
id	acadia12_87
authors	Menicovich, David ; Gallardo, Daniele ; Bevilaqua, Riccardo ; Vollen, Jason
year	2012
title	Generation and Integration of an Aerodynamic Performance Data Base Within the Concept Design Phase of Tall Buildings
source	ACADIA 12: Synthetic Digital Ecologies [Proceedings of the 32nd Annual Conference of the Association for Computer Aided Design in Architecture (ACADIA) ISBN 978-1-62407-267-3] San Francisco 18-21 October, 2012), pp. 87-96
doi	https://doi.org/10.52842/conf.acadia.2012.087
summary	Despite the fact that tall buildings are the most wind affected architectural typology, testing for aerodynamic performance is conducted during the later design phases well after the overall geometry has been developed. In this context, aerodynamic performance studies are limited to evaluating an existing design rather than a systematic performance study of design options driving form generation. Beyond constrains of time and cost of wind tunnel testing, which is still more reliable than Computational Fluid Dynamics (CFD) simulations for wind conditions around buildings, aerodynamic performance criteria lack an immediate interface with parametric design tools. This study details a framework for empirical data collection through wind tunnel testing of building mechatronic models and the expansion of the collected dataset by determining a mathematical interpolating model using an Artificial Neural Network (ANN) algorithm developing an Aerodynamic Performance Data Base (APDB). Frederick Keisler called the interacting of forces CO-REALITY, which he defined as The Science of Relationships. In the same article Keisler proclaims that the Form Follows Function is an outmoded understanding that design must demonstrate continuous variability in response to interactions of competing forces. This topographic space is both constant and fleeting where form is developed through the broadcasting of conflict and divergence as a system seeks balance and where one state of matter is passing by another; a decidedly fluid system. However, in spite of the fact that most of our environment consists of fluids or fluid reactions, instantaneous and geologic, natural and engineered, we have restricted ourselves to approaching the design of buildings and their interactions with the environment through solids, their properties and geometry; flow is considered well after the concept design stage and as validation of form. The research described herein explores alternative relations between the object and the flows around it as an iterative process, moving away from the traditional approach of Form Follows Function to Form Follows Flow.
keywords	Tall Buildings , Mechatronics , Artificial Neural Network , Aerodynamic Performance Data Base
series	ACADIA
type	normal paper
email
last changed	2022/06/07 07:58

_id	caadria2012_094
id	caadria2012_094
authors	Roupé, Mattias; Mikael Johansson, Mikael Viklund Tallgren and Mathias Gustaffson
year	2012
title	Using the human body as an interactive interface for navigation in VR models
source	Proceedings of the 17th International Conference on Computer Aided Architectural Design Research in Asia / Chennai 25-28 April 2012, pp. 79–88
doi	https://doi.org/10.52842/conf.caadria.2012.079
summary	The use of Virtual Reality (VR) and interactive real-time rendering in urban planning and building design are becoming more and more common. However, the integration of VR in the urban planning process suffers from the complicated interaction handling of the virtual environment. In particular, people unfamiliar to gaming environments and computers are less prone to interact with a VR visualisation using keyboard and mouse as controlling devices. This paper addresses this issue by presenting an implementation of the XBOX 360 Kinect sensor system, which uses the human body to interact with the virtual environment. This type of interaction interface enables a more natural and user-friendly way of interacting with the virtual environment. The validation of the system shows that respondents perceived the interface as non-demanding and easy to use. The implemented interface to switch between different architecture proposals gave a better understanding and spatial reasoning for the respondent. The study also shows that males perceived the system as more demanding than females. The users also associated and compared their body with virtual environment, which could indicate that they used their body during spatial reasoning. This type of spatial reasoning has been agued to enhance the spatial-perception.
keywords	Virtual reality; XBOX Kinect; perception; navigation
series	CAADRIA
email
last changed	2022/06/07 07:56

_id	ecaade2012_275
id	ecaade2012_275
authors	Sharaidin, Kamil; Burry, Jane; Salim, Flora
year	2012
title	Integration of Digital Simulation Tools With Parametric Designs to Evaluate Kinetic Façades for Daylight Performance
source	Achten, Henri; Pavlicek, Jiri; Hulin, Jaroslav; Matejovska, Dana (eds.), Digital Physicality - Proceedings of the 30th eCAADe Conference - Volume 2 / ISBN 978-9-4912070-3-7, Czech Technical University in Prague, Faculty of Architecture (Czech Republic) 12-14 September 2012, pp. 701-709
doi	https://doi.org/10.52842/conf.ecaade.2012.2.701
wos	WOS:000330320600075
summary	This research presents a solution for evaluation of kinetic façades system performance via experiences and lessons learnt from experiments. We bridge between architects and engineers to address limitations associated with incorporating performance criteria in the design of kinetic façades by integrating different simulation tools. The experiments focus on optimization of the daylight performance through the design and motion of kinetic façades using various integrated software. The research is developed using real time data feedback processed through various digital tools from three domains: (1) Architectural design, (2) day-lighting performance and (3) parametric design computation. From the evaluations, the paper demonstrates the analysis of kinetic motion for daylight optimization at the early design stage and suggests possible configurations for daylight performance.
keywords	Kinetic façades; digital simulations; design considerations; early design stage
series	eCAADe
email
last changed	2022/06/07 07:56

_id	acadia20_340
id	acadia20_340
authors	Soana, Valentina; Stedman, Harvey; Darekar, Durgesh; M. Pawar, Vijay; Stuart-Smith, Robert
year	2020
title	ELAbot
source	ACADIA 2020: Distributed Proximities / Volume I: Technical Papers [Proceedings of the 40th Annual Conference of the Association of Computer Aided Design in Architecture (ACADIA) ISBN 978-0-578-95213-0]. Online and Global. 24-30 October 2020. edited by B. Slocum, V. Ago, S. Doyle, A. Marcus, M. Yablonina, and M. del Campo. 340-349.
doi	https://doi.org/10.52842/conf.acadia.2020.1.340
summary	This paper presents the design, control system, and elastic behavior of ELAbot: a robotic bending active textile hybrid (BATH) structure that can self-form and transform. In BATH structures, equilibrium emerges from interaction between tensile (form active) and elastically bent (bending active) elements (Ahlquist and Menges 2013; Lienhard et al. 2012). The integration of a BATH structure with a robotic actuation system that controls global deformations enables the structure to self-deploy and achieve multiple three-dimensional states. Continuous elastic material actuation is embedded within an adaptive cyber-physical network, creating a novel robotic architectural system capable of behaving autonomously. State-of-the-art BATH research demonstrates their structural efficiency, aesthetic qualities, and potential for use in innovative architectural structures (Suzuki and Knippers 2018). Due to the lack of appropriate motor-control strategies that exert dynamic loading deformations safely over time, research in this field has focused predominantly on static structures. Given the complexity of controlling the material behavior of nonlinear kinetic elastic systems at an architectural scale, this research focuses on the development of a cyber-physical design framework where physical elastic behavior is integrated into a computational design process, allowing the control of large deformations. This enables the system to respond to conditions that could be difficult to predict in advance and to adapt to multiple circumstances. Within this framework, control values are computed through continuous negotiation between exteroceptive and interoceptive information, and user/designer interaction.
series	ACADIA
type	paper
email
last changed	2023/10/22 12:06

_id	ecaade2012_5
id	ecaade2012_5
authors	Biloria, Nimish; Chang, Jia-Rey
year	2012
title	HyperCell: A Bio-Inspired Information Design Framework for Real-Time Adaptive Spatial Components
source	Achten, Henri; Pavlicek, Jiri; Hulin, Jaroslav; Matejovska, Dana (eds.), Digital Physicality - Proceedings of the 30th eCAADe Conference - Volume 2 / ISBN 978-9-4912070-3-7, Czech Technical University in Prague, Faculty of Architecture (Czech Republic) 12-14 September 2012, pp. 573-581
doi	https://doi.org/10.52842/conf.ecaade.2012.2.573
wos	WOS:000330320600061
summary	Contemporary explorations within the evolutionary computational domain have been heavily instrumental in exploring biological processes of adaptation, growth and mutation. On the other hand a plethora of designers owing to the increasing sophistication in computer aided design software are equally enthused by the formal aspects of biological organisms and are thus meticulously involved in form driven design developments. This focus on top-down appearance and surface condition based design development under the banner of organic architecture in essence contributes to the growing misuse of bio-inspired design and the inherent meaning associated with the terminology. HyperCell, a bio-inspired information design framework for real-time adaptive spatial components, is an ongoing research, at Hyperbody, TU Delft, which focuses on extrapolating bottom-up generative design and real-time interaction based adaptive spatial re-use logics by understanding processes of adaptation, multi-performance and self sustenance in natural systems. Evolutionary developmental biology is considered as a theoretical basis for this research.
keywords	Adaptation; Swarms; Evo-Devo; Simulation: Cellular component
series	eCAADe
email
last changed	2022/06/07 07:54

_id	caadria2012_095
id	caadria2012_095
authors	Johansson, Mikael and Mattias Roupé
year	2012
title	Real-time rendering of large building information models: Current state vs. state-of-the-art
source	Proceedings of the 17th International Conference on Computer Aided Architectural Design Research in Asia / Chennai 25-28 April 2012, pp. 647–656
doi	https://doi.org/10.52842/conf.caadria.2012.647
summary	With the use of Building Information Models (BIM), real-time 3D visualisations have become a natural tool in order to communicate ideas and share information between all involved parties in a project. Currently, several different BIM viewers are available for the purpose of interactive presentations and design reviews. However, as BIMs become larger and more detailed, it provides a challenge for available software solutions to manage them interactively. In this paper we present our findings from analysing three commonly used BIM viewers - Tekla BIMSight, Autodesk Navisworks and Solibri Model Viewer - in terms of real-time rendering performance. In addition we have developed a prototype BIM viewer to test modern approaches for efficient real-time rendering. Specifically, we have implemented the latest version of the Coherent Hierarchical Culling algorithm. Our results show that existing BIM viewers all share limitations in their ability to handle large and complex BIMs interactively. However, for the same test models, our prototype BIM viewer enables smooth real-time performance with no visual artefacts. The results from our tests thus shows that the technology to enable correct real-time rendering of large and complex BIMs is already accessible, but are currently not utilised by any of the tested BIM viewers.
keywords	3D graphics; BIM; real-time rendering
series	CAADRIA
email
last changed	2022/06/07 07:52

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