scholarly journals Ephemeral Architectures: the union of concepts in the creation of an immersive experience

2020 ◽  
pp. 38-39
Author(s):  
Paula Arzillo ◽  
Marcus Vinicius Pereira
Keyword(s):  
Large Scale ◽  
Graphical Representation ◽  
Parametric Design ◽  
Three Dimensional ◽  
Computer Software ◽  
Future Research ◽  
Digital Architecture ◽  
Spider Web ◽  
Complex Shapes ◽  
The Creation

This theoretical-methodological research aims a final graduation paper in the Architectures and Urbanism bachelor’s degree program, which corresponds to an activity of synthesis and integration of skills developed throughout the course. Therefore, it is proposed to create a Project of an ephemeral architecture, which explores the perception and sensitivity of visitors, through the interactive experiences given by it. The theoretical basis searches architectural practices that relate innovative Technologies, and which materialize through an immersive exhibition, which explores interactivity with the visitors, in order to stimulate human senses – such as touch, smell, taste and hearing. For this, it is taken advantage of organic shape study, relating the concepts of biomimetic design and parametric design in order to demystify complex formulas through computer generated algorithms. The evolution process of the new digital tools brings an approximation of graphical representation with the real world. The complexity of the architectural technical representation, reached a parameter that becomes impossible without the computer software. In this context, parametric architecture is a technique developed from software, which has the ability to perform complex calculations, in a clear and effective way, allowing the creation of complex shapes that allow to expand the creative process until then, limited by technical characteristics. The Project called “Feelings, an immersive experience is made up of six distinct spaces, divides by rooms for temporary exhibitions at the Pinacoteca do Estado de São Paulo. The beginning of the Project route is given by the central octagon, where is thefirst installation that has a large scale, inspired by a spider web materialized through tensioned lycra fabric. The others rooms are based on the shape and characteristics of animals: 1) the Octopus tentacles, which stimulate the human touch, through holes in the Octopus suckers, that invite visitors to find out different textures; 2) butterfly cocoons shapes, containing aromas capsules, which stimulate the sense of smell; 3) silhouettes of marine jellyfish shelter the dripping system of a surprise flavor drop, which awaken the taste buds, sensory receptors of the tongue as sweet, bitter, salty, sours or umami; 4) the chameleon’s scalyskin, due to the ability to change colors, is taken to produce an interactive panel of lights that stimulates the sense of vision; 5) the structure of bird s taken to address the sense of hearing, by hiding speakers with sound effects that change according to the visitors interaction. All the structuring of these models used practices of digital architecture technologies. Finally, this research applies practical solutions based on three-dimensional graphic models for the representation of projects with complex shapes through intensive use of modeling, standing out for uniting concepts such as biomimetics and parametric in favor of the practice of innovative tools and still not so much explored in the Architecture and Urbanism course, promoting future research and expanding the repertoire within the area.

scholarly journals Principles and Characteristics of Different EDM Processes in Machining Tool and Die Steels

2020 ◽  
Vol 10 (6) ◽  
pp. 2082 ◽  
Author(s):  
Jaber E. Abu Qudeiri ◽  
Aiman Zaiout ◽  
Abdel-Hamid I. Mourad ◽  
Mustufa Haider Abidi ◽  
Ahmed Elkaseer
Keyword(s):  
Large Scale ◽  
Removal Rate ◽  
Surface Characteristics ◽  
Future Research ◽  
Process Conditions ◽  
Process Performance ◽  
Die Steels ◽  
Wide Range ◽  
Complex Shapes ◽  
Manufacturing Technologies

Electric discharge machining (EDM) is one of the most efficient manufacturing technologies used in highly accurate processing of all electrically conductive materials irrespective of their mechanical properties. It is a non-contact thermal energy process applied to a wide range of applications, such as in the aerospace, automotive, tools, molds and dies, and surgical implements, especially for the hard-to-cut materials with simple or complex shapes and geometries. Applications to molds, tools, and dies are among the large-scale initial applications of this process. Machining these items is especially difficult as they are made of hard-to-machine materials, they have very complex shapes of high accuracy, and their surface characteristics are sensitive to machining conditions. The review of this kind with an emphasis on tool and die materials is extremely useful to relevant professions, practitioners, and researchers. This review provides an overview of the studies related to EDM with regard to selection of the process, material, and operating parameters, the effect on responses, various process variants, and new techniques adopted to enhance process performance. This paper reviews research studies on the EDM of different grades of tool steel materials. This article (i) pans out the reported literature in a modular manner with a focus on experimental and theoretical studies aimed at improving process performance, including material removal rate, surface quality, and tool wear rate, among others, (ii) examines evaluation models and techniques used to determine process conditions, and (iii) discusses the developments in EDM and outlines the trends for future research. The conclusion section of the article carves out precise highlights and gaps from each section, thus making the article easy to navigate and extremely useful to the related research community.

scholarly journals Visualization of construction infrastructure objects

2021 ◽  
Vol 2094 (3) ◽  
pp. 032031
Author(s):  
V I Zhadanov ◽  
I N Charikova ◽  
V M Shardakov
Keyword(s):  
Large Scale ◽  
Three Dimensional ◽  
Information Modeling ◽  
Future Research ◽  
Reliability Factor ◽  
Photorealistic Rendering ◽  
Building Information ◽  
Three Dimensional Models ◽  
The Cost ◽  
Building Plans

Abstract Building information modeling provides an integrated three-dimensional environment applied to the management of large-scale engineering projects, allowing you to reduce the cost and time for planning structures and requirements for the reliability of buildings. The purpose of this work is to develop a methodology for changing the layout and reliability factor during the visualization of three-dimensional models to improve the analysis of building plans. This approach will allow you to combine different analytical methods and approaches when planning different structures. The results of this work suggest new directions for future research in the field of information visualization for the construction complex. The system is compatible with portable and scalable mobile devices. The proposed system can also be used for pre-project architecture and augmented visualization, where proprietary developed methods are used to achieve the quality of photorealistic rendering.

Parametric Design of Tapered End Mills with Variable Pitch for Improving Stability

2014 ◽  
Vol 599-601 ◽  
pp. 381-384
Author(s):  
Li Lun He ◽  
Zhi Bing Liu ◽  
Xi Bin Wang ◽  
Wei Wei Lv
Keyword(s):  
Graphical Representation ◽  
Parametric Design ◽  
Design Method ◽  
Three Dimensional ◽  
Mathematical Expression ◽  
End Mill ◽  
Optimal Angle ◽  
Variable Pitch ◽  
End Mills ◽  
Design And Manufacture

For the problems about design and manufacture of the variable pitch tapered end mills, this study proposes a three-dimensional parametric design method of variable pitch mill. Firstly the equation of calculating the optimal angle between the pitch was presented .Considering existing different patches between two cutting edges, helix edge curve and cross-section groove model of tapered end mill were established .Secondly, mathematical expression of ball end teeth for tapered mill was derived, and all points data of tapered mill surface can be determined by established model. Through the graphical representation, the points set are translated into a solid model.

Layout synthesis of fluid channels using generative graph grammars

2014 ◽  
Vol 28 (3) ◽  
pp. 239-257 ◽  
Author(s):  
Amir Hooshmand ◽  
Matthew I. Campbell
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Large Scale ◽  
Three Dimensional ◽  
Graph Grammar ◽  
Future Research ◽  
Test Problems ◽  
Synthesis Methods ◽  
Graph Grammars ◽  
Design Synthesis

AbstractThis paper presents a new technique for shape and topology optimization of fluid channels using generative design synthesis methods. The proposed method uses the generative abilities of graph grammars with simulation and analysis power of conventional computational fluid dynamics methods. The graph grammar interpreter GraphSynth is used to carry out graph transformations, which define different topologies for a given multiple-inlet multiple-outlet problem. After evaluating and optimizing the generated graphs, they are first transformed into meaningful three-dimensional shapes. These solutions are then analyzed by a computational fluid dynamics solver for final evaluation of the possible solutions. The effectiveness of the proposed method is checked by solving a variety of available test problems and comparing them with those found in the literature. Furthermore, by solving very complex large-scale problems, the robustness and effectiveness of the method is tested. To extend the work, future research directions are presented.

scholarly journals Hydro- and morphodynamics in curved river reaches – recent results and directions for future research

2013 ◽  
Vol 37 ◽  
pp. 19-25 ◽  
Author(s):  
K. Blanckaert ◽  
G. Constantinescu ◽  
W. Uijttewaal ◽  
Q. Chen
Keyword(s):  
Sediment Transport ◽  
Secondary Flow ◽  
Large Scale ◽  
Numerical Models ◽  
Three Dimensional ◽  
Future Research ◽  
Turbulence Structures ◽  
Outer Bank ◽  
Flow Processes

Abstract. Curved river reaches were investigated as an example of river configurations where three-dimensional processes prevail. Similar processes occur, for example, in confluences and bifurcations, or near hydraulic structures such as bridge piers and abutments. Some important processes were investigated in detail in the laboratory, simulated numerically by means of eddy-resolving techniques, and finally parameterized in long-term and large-scale morphodynamic models. Investigated flow processes include secondary flow, large-scale coherent turbulence structures, shear layers and flow separation at the convex inner bank. Secondary flow causes a redistribution of the flow and a transverse inclination of the riverbed, which favour erosion of the outer bank and meander migration. Secondary flow generates vertical velocities that impinge on the riverbed, and are known to increase the erosive capacity of the flow. Large-scale turbulent coherent structures also increase the sediment entrainment and transport capacity. Both processes are not accounted for in sediment transport formulae, which leads to an underestimation of the bend scour and the erosion of the outer bank. Eddy-resolving numerical models are computationally too expensive to be implemented in long-term and large-scale morphodynamic models. But they provide insight in the flow processes and broaden the investigated parameter space. Results from laboratory experiments and eddy-resolving numerical models were at the basis of the development of a new parameterization without curvature restrictions of secondary flow effects, which is applicable in long-term and large-scale morphodynamic models. It also led to the development of a new engineering technique to modify the flow and the bed morphology by means of an air-bubble screen. The rising air bubbles generate secondary flow, which redistributes the patterns of flow, boundary shear stress and sediment transport.

scholarly journals Large Scale Experimental Study of the Scour Protection Damage Around a Monopile Foundation Under Combined Wave and Current Conditions

2020 ◽  
Vol 8 (6) ◽  
pp. 417 ◽  
Author(s):  
Minghao Wu ◽  
Leen De Vos ◽  
Carlos Emilio Arboleda Chavez ◽  
Vasiliki Stratigaki ◽  
Tiago Fazeres-Ferradosa ◽  
...  
Keyword(s):  
Large Scale ◽  
Three Dimensional ◽  
Static Stability ◽  
Future Research ◽  
Small Scale ◽  
Flume Experiments ◽  
Wave Flume ◽  
Scale Models ◽  
Damage Data ◽  
Scour Protection

This paper presents a series of large-scale wave flume experiments on the scour protection damage around a monopile under combined waves and current conditions with model scales of 1:16.67 and 1:8.33. The main objective is to compare the damage data obtained from these large-scale models with existing monopile scour protection design approaches, which were proposed based on small scale wave flume experiments, and to study the applicability of the existing approaches. The static stability (onset of motion and bed shear stress) and the dynamic stability (three-dimensional damage numbers) of the scour protection are investigated. Both results show that the existing design approaches can be conservative when applied to large scale models, which highlights the need of further investigations on scale and model effects. In addition, this paper also analyses the scour protection damage depth. It is observed that damage depths of the scour protection layer under low Keulegan–Carpenter number (KC) conditions are smaller than predictions. The study provides valuable large scale experimental data for future research on the monopile scour protection design.

scholarly journals Robotic Fabrication as Catalysts for Emergent Topologies and Traditions: Nomadic Small Pavilions and Permanent Mega Structures in Kuwait

2019 ◽  
Author(s):  
Hussain Dashti
Keyword(s):  
Large Scale ◽  
Parametric Design ◽  
Local Level ◽  
Evolutionary Robotics ◽  
Computational Design ◽  
Future Research ◽  
Gothic Architecture ◽  
Construction Automation ◽  
Robotic Fabrication ◽  
Under Construction

This paper reviews tendencies and drives for future parametric computational design and robotic fabrication/construction automation. It sheds light on the local current impact of the computational paradigm and mass-customized robotic fabrication in Kuwait. This paper is intended to answer the following two questions: Is parametric design and robotic fabrication allowing for emergent architectural topologies? Is robotic fabrication a catalyst for legitimizing change in architectural traditions at a local level? This has been experimented on two building scales. One with more ephemeral or transient nomadic pavilions, designed by the author, intended to demand our momentary attention, offering essential opportunities for research, experimentation, heuristic testing and prototyping - public delight and exposure. Though impermanent, these can even go so far as to be catalysts for positive change displaying affirmative qualities of temporal architecture. On the other hand, the author shares parametric design and robotic fabrication practices/consultation on local permanent mega structures currently under construction. Such mega buildings act as proof that geometrically complex buildings do not stay in the realm of small experimental and heuristic research only, but incorporated in large-scale complex building, branding and placing countries on the global map. Robotic fabrication and construction gives rise to new paradigms such as "zero-tolerance" building with "file-to-factory" production allowing for Ruskinian tectonics blending structures with ornamental aesthetics, similar to gothic architecture. With the profusion of robotic fabrication and construction, the author claims that change in the physical built environment is eminent. A final inquiry will be raised as a future research topic pertaining to robotic in-situ "mobility-on-demand", Artificial Intelligence, "Machine Learning", "Big Data" and "evolutionary robotics" which raises the question of what will our future mass-customized cities look like and what type of physical infrastructure is needed to facilitate mobile robotic fabrication and construction.

Describing Multijoint Coordination: Preliminary Investigation with Nonhandicapped, Cerebral Palsied, and Elderly Individuals

1984 ◽  
Vol 1 (2) ◽  
pp. 105-111 ◽  
Author(s):  
Anne Beuter
Keyword(s):  
Graphical Representation ◽  
Preliminary Investigation ◽  
Three Dimensional ◽  
Motor Task ◽  
Space Velocity ◽  
Future Research ◽  
Anatomical Landmarks ◽  
Joint Angles ◽  
Data Points ◽  
Neuromuscular Coordination

This paper proposes a computer graphics approach to represent the kinematics of the lower limb during a multijoint coordinated motor task. The methodology is based on automatic digitization by a microprocessor of reflective markers placed on anatomical landmarks and videotaped using a videomotion analyzer and camera. Thus, the investigator can represent complete movement patterns graphically. With joint angles, or the first or second derivative of the angles serving as the coordinates for the three mutually perpendicular axes in R3, the technique gives a point in space corresponding to each time increment as the movement sequence progresses. Using this method, a graphical representation of the position, velocity, or acceleration can be generated in movement space, velocity space, or acceleration space, respectively. A sample of the results of this technique is presented using the movement space of elderly, nonhandicapped, and cerebral palsied individuals as each steps over a low obstacle. The cluster of data points created for each subject are connected to form a three-dimensional graphical representation of the covariation between joint angles. The use of the approach is discussed in relation to future research in neuromuscular coordination using concepts from catastrophe theory. Possible applications for handicapped individuals are mentioned.

scholarly journals Applied Up-style Study Motivated by Mushrooms

2021 ◽  
Vol 27 (5) ◽  
pp. 1132-1138
Author(s):  
Gum-Ju Sung ◽  
Yong-Mi Jin
Keyword(s):  
Three Dimensional ◽  
Black Hair ◽  
Future Research ◽  
Wave Shape ◽  
The Creation ◽  
Principles Of Design ◽  
Distinct Line

The purpose of this study is to provide possibility and scalability for the creation of an artistic and original modern up-style in subsequent studies by applying the mushroom form. The four works were created by applying various kinds of mushroom images by combining the components of up-style design, the principles of design, and up-style techniques. As a result, the first piece was produced with a three-dimensional texture by raising the hair little by little. Art 2 uses black hair to create a distinct line of shape, creating a splendid refinement. Art 3 shows classic beauty and elegance by braiding to express the mesh-shaped characteristics of mushrooms. The wave shape of mushrooms in Figure 4 shows richness and rhythm through wave continuity and movement. The conclusion is that the design can be produced and applied with harmony and balance by applying up-style techniques by utilizing the characteristics of various kinds of mushrooms. And I could see that the up-style design has a texture and eye-catching effect depending on the color. In future research, we look forward to the possibility of satisfying customers' needs and expectations by studying infinite designs that can express the elegance and beauty of up-style.

WinCSD: software package for crystallographic calculations (Version 4)

2014 ◽  
Vol 47 (2) ◽  
pp. 803-805 ◽  
Author(s):  
Lev Akselrud ◽  
Yuri Grin
Keyword(s):  
Operating Systems ◽  
Diffraction Data ◽  
Graphical Representation ◽  
Three Dimensional ◽  
Computer Software ◽  
Software Environment ◽  
X Ray ◽  
Structure Solution ◽  
Net Framework ◽  
Purpose Computer

The fourth version of the program packageWinCSDis multi-purpose computer software for crystallographic calculations using single-crystal and powder X-ray and neutron diffraction data. The software environment and the graphical user interface are built using the platform of the Microsoft .NET Framework, which grants independence from changing Windows operating systems and allows for transferring to other operating systems. Graphic applications use the three-dimensional OpenGL graphics language.WinCSDcovers the complete spectrum of crystallographic calculations, including powder diffraction pattern deconvolution, crystal structure solution and refinement in 3 + dspace, refinement of the multipole model and electron density studies from diffraction data, and graphical representation of crystallographic information.

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