scholarly journals VISUALISING SYSTEMS: MAPPING SYSTEM FEATURES AND INTERACTIVE INFORMATION VISUALISATIONS IN DESIGN

2020 ◽  
Vol 1 ◽  
pp. 2295-2304
Author(s):  
A. Idrissov ◽  
S. Škec ◽  
A. M. Maier
Keyword(s):  
Systems Theory ◽  
Support Design ◽  
Gestalt Principles ◽  
Related Information ◽  
Mapping System ◽  
Cad Models ◽  
Systems Mapping

AbstractInteractive computer-supported information visualisations are being increasingly used in design. However, while there are frameworks that discuss how traditional representations, such as sketches, CAD models and static diagrams support design tasks, no such mapping exists for interactive visualisations of product-related information. As novel contributions, this paper reviews the design literature for the use of information visualisations. Moreover, using systems theory and Gestalt principles, insights on the applicability of such information visualisations for various design tasks are given.

CAD-Integrated Cost Estimation and Build Orientation Optimization to Support Design for Metal Additive Manufacturing

2017 ◽  
Author(s):  
Michael Barclift ◽  
Andrew Armstrong ◽  
Timothy W. Simpson ◽  
Sanjay B. Joshi
Keyword(s):  
Additive Manufacturing ◽  
Cost Estimation ◽  
Application Programming Interface ◽  
External Support ◽  
Support Design ◽  
Build Orientation ◽  
3D Cad ◽  
Build Time ◽  
Cad Models ◽  
Integrated Cost

Cost estimation techniques for Additive Manufacturing (AM) have limited synchronization with the metadata of 3D CAD models. This paper proposes a method for estimating AM build costs through a commercial 3D solid modeling program. Using an application programming interface (API), part volume and surface data is queried from the CAD model and used to generate internal and external support structures as solid-body features. The queried data along with manipulation of the part’s build orientation allows users to estimate build time, feedstock requirements, and optimize parts for AM production while they are being designed in a CAD program. A case study is presented with a macro programmed using the SolidWorks API with costing for a metal 3D-printed automotive component. Results reveal that an imprecise support angle can under-predict support volume by 34% and build time by 20%. Orientation and insufficient build volume packing can increase powder depreciation costs by nearly twice the material costs.

scholarly journals From Goal-Oriented to Constraint-Oriented Design: The Cybernetic Intersection of Design Theory and Systems Theory

Leonardo ◽  
2017 ◽  
Vol 50 (1) ◽  
pp. 36-41 ◽  
Author(s):  
Thomas Fischer ◽  
Laurence D. Richards
Keyword(s):  
Systems Theory ◽  
20Th Century ◽  
Design Theory ◽  
Second Order ◽  
System Boundaries ◽  
Support Design ◽  
Design Exploration ◽  
Design Processes ◽  
Ethical Implications

This article traces the changing notions of constraints in design and of systems since the mid-20th century in the intersection of design theory and systems theory. Taking a second-order cybernetic perspective, the article develops constraints as observer dependent and it analyzes conditions under which constraints tend to be beneficial or detrimental. Ethical implications of constraints in design processes are established with reference to system boundaries. Constraint-oriented design is discussed as an alternative to goal-oriented design, and a method called constraint reversal is introduced as a strategy of deliberate defiance of constraints to support design exploration.

Supporting Design Refinement in MEMS Design

2002 ◽  
Author(s):  
Rajarishi Sinha ◽  
Christiaan J. J. Paredis ◽  
Pradeep K. Khosla
Keyword(s):  
Microelectromechanical Systems ◽  
Building Blocks ◽  
Virtual Prototype ◽  
Ease Of Use ◽  
Formal Grammar ◽  
Behavioral Models ◽  
Support Design ◽  
Design Alternatives ◽  
Cad Models ◽  
Refinement Mechanism

We present a framework to support design refinement during the virtual prototyping of microelectromechanical systems (MEMS). By instantiating MEMS components and connecting them to each other via ports, the designer can both configure complex systems and simulate them. We examine design refinement in the context of ease of use and representation of the virtual prototype. We propose the use of a common, formal grammar representation for the design entities in the virtual prototype—MEMS components, behavioral models and CAD models. We show that the formal grammar approach leads to easy creation of virtual prototypes. In this paper, we focus on ports—the fundamental building blocks of a virtual prototype. Ports mediate all interactions within and between aspects of the virtual prototype. For even moderately complex designs, there can be many interactions present. The representation and organization of all possible ports is important in the context of design refinement. We provide a set-theoretic formalism that defines the algebra of ports. We present a formal grammar for ports that represents a port as a set of attributes, and provide a design refinement mechanism that involves adding or modifying attributes in the port. We illustrate our framework with a MEMS example. We demonstrate that the MEMS designer can evaluate multiple design alternatives quickly and accurately with our framework.

scholarly journals Integration of a Wearable Mobile Mapping Solution and Advance Numerical Simulations for the Structural Analysis of Historical Constructions: A Case of Study in San Pedro Church (Palencia, Spain)

2021 ◽  
Vol 13 (7) ◽  
pp. 1252
Author(s):  
Luis Javier Sánchez-Aparicio ◽  
Rocío Mora ◽  
Borja Conde ◽  
Miguel Ángel Maté-González ◽  
María Sánchez-Aparicio ◽  
...  
Keyword(s):  
Numerical Simulations ◽  
Point Cloud ◽  
Mobile Mapping ◽  
Structural Problems ◽  
Mapping System ◽  
Cad Models ◽  
Mobile Mapping System ◽  
Simultaneous Location And Mapping ◽  
Time Required ◽  
Mapping Solution

This work aims at enhancing the current methodologies used for generating as-built CAD models suitable for advanced numerical simulations. To this end, this paper proposes the use of a wearable mobile mapping system that allows one to improve the digitalization stage in terms of flexibility and time required. The noise showed by the resulting point cloud, based on the simultaneous location and mapping (SLAM) solution, demands a post-processing stage that introduces the use of a parameter-free noise reduction filter. This filter improves the quality of the point cloud, allowing for the adjustment of surfaces by means of parametric and non-parametric shapes. These shapes are created by using reverse engineering procedures. The results showed during this investigation highlight a novel application of this sensor: the creation of as-built CAD models for advanced numerical simulations. The results of this investigation are complemented by a valuable contribution with respect to the use of an advanced restoration solution, by means of textile reinforced mortar. To this end, the CAD model is used as the geometrical base for several numerical simulations by means of the finite element method. All this procedure is applied in a construction with structural problems.

scholarly journals A manufacturability-based assessment and design modification support tool

2020 ◽  
Vol 18 (6) ◽  
pp. 410-424
Author(s):  
Esraa S. Abdelall ◽  
Luay Alawneh ◽  
Mohamed Eldakroury
Keyword(s):  
Technological Development ◽  
Production Volume ◽  
Design Modification ◽  
Support Tool ◽  
3D Cad ◽  
Related Information ◽  
Market Competitiveness ◽  
Additional Manufacturing ◽  
Cad Models ◽  
Pdf Format

In the light of momentous technological development and market competitiveness, designers struggle to generate creative and successful designs to survive in the market and stay competitive. However, being in such a stressful work environment, any slip, or flaws during the design stages, particularly those related to manufacturing, can make design more vulnerable to fail. Therefore, the designer is in need of aiding means to guarantee minimizing and controlling these costly errors. Thus, this paper presents a new tool, called DesMod, to help the novice designers as well as the design students avoid such issues, as well as to save time, effort and cost. Through DesMod, the designer can assess the manufacturability of the design and receive design modification suggestions and feedback at early design stages. This can be achieved by simply importing 3D CAD models in STEP or IGES format within DesMod. Next, the design features can be recognized in a hybrid way, either automatically and/ or manually; then mapped to the corresponding database in the background. Any additional manufacturing-related information such as materials, surface quality, production volume, among others, can be also entered. Once information about the design is entered and mapped, the manufacturability assessment and the associated design modification suggestions can be generated and stored in PDF format. In this paper, the casting module of DesMod was tested with many designs ranging from simple to complex, and acceptable results were obtained.

Coding and Classification of Geometric Models

1995 ◽  
Author(s):  
A. Z. Qamhiyah ◽  
B. Benhabib ◽  
R. D. Venter
Keyword(s):  
Coding System ◽  
Active Databases ◽  
Second Stage ◽  
Related Information ◽  
Design And Manufacturing ◽  
Efficient Retrieval ◽  
Cad Models ◽  
Geometrical Data ◽  
Object Models

Abstract For the efficient manipulation of information in support of design and manufacturing one would need to access large active databases. In this context, it is envisioned that 3-D object models must be easily retrieved for modification, or for simply reviewing related information. This paper addresses the development of a classification system for the efficient retrieval of 3-D object CAD models. For the design of a new object the user would access the database to locate the most similar object model and, if worthwhile, modify it to attain a model for the new object under consideration. The proposed classification procedure comprises three main stages: First, 3-D geometrical data, sufficient for classification, is determined and extracted from a selected model of the object, and a primary representation domain is determined. Contours, were selected as the basic descriptive units. Based on this selection, relationships defined by descriptor elements were established between (a) two solid contours; (b) a solid and a hollow contour; and, (c) two hollow contours. In order to facilitate the use of the descriptor elements, a simple alpha-numeric coding system was developed. In the second stage, the description of the object is mapped from the geometrical domain into a numerical-factor domain, where each contour is represented by a numerical value. In the final stage, a code is generated based on the factor-domain representation in the form of a Fourier signature. Classification is then carried out according to the similarity of the generated Fourier signatures.

Lexical Comprehension in Young Children With Developmental Delays

1994 ◽  
Vol 3 (1) ◽  
pp. 79-88 ◽  
Author(s):  
Theresa A. Kouri
Keyword(s):  
Young Children ◽  
Developmental Delays ◽  
Normal Development ◽  
Clinical Applications ◽  
Group Status ◽  
Novel Object ◽  
Related Information ◽  
Comprehension Skills ◽  
Lexical Items ◽  
Lexical Concepts

Lexical comprehension skills were examined in 20 young children (aged 28–45 months) with developmental delays (DD) and 20 children (aged 19–34 months) with normal development (ND). Each was assigned to either a story-like script condition or a simple ostensive labeling condition in which the names of three novel object and action items were presented over two experimental sessions. During the experimental sessions, receptive knowledge of the lexical items was assessed through a series of target and generalization probes. Results indicated that all children, irrespective of group status, acquired more lexical concepts in the ostensive labeling condition than in the story narrative condition. Overall, both groups acquired more object than action words, although subjects with ND comprehended more action words than subjects with DD. More target than generalization items were also comprehended by both groups. It is concluded that young children’s comprehension of new lexical concepts is facilitated more by a context in which simple ostensive labels accompany the presentation of specific objects and actions than one in which objects and actions are surrounded by thematic and event-related information. Various clinical applications focusing on the lexical training of young children with DD are discussed.

Using Popular Mobile Devices in Voice Therapy

2013 ◽  
Vol 23 (3) ◽  
pp. 82-87 ◽  
Author(s):  
Eva van Leer
Keyword(s):  
Exercise Behavior ◽  
Voice Therapy ◽  
Pure Oxygen ◽  
Mobile Platforms ◽  
Self Monitoring ◽  
Web Based ◽  
Motivational Messages ◽  
Related Information ◽  
Health Related ◽  
Tailored Approach

Mobile tools are increasingly available to help individuals monitor their progress toward health behavior goals. Commonly known commercial products for health and fitness self-monitoring include wearable devices such as the Fitbit© and Nike + Pedometer© that work independently or in conjunction with mobile platforms (e.g., smartphones, media players) as well as web-based interfaces. These tools track and graph exercise behavior, provide motivational messages, offer health-related information, and allow users to share their accomplishments via social media. Approximately 2 million software programs or “apps” have been designed for mobile platforms (Pure Oxygen Mobile, 2013), many of which are health-related. The development of mobile health devices and applications is advancing so quickly that the Food and Drug Administration issued a Guidance statement with the purpose of defining mobile medical applications and describing a tailored approach to their regulation.

The Impact of a Highly Publicized Celebrity Suicide on Suicide-Related Online Information Seeking

Crisis ◽  
2017 ◽  
Vol 38 (3) ◽  
pp. 207-209 ◽  
Author(s):  
Florian Arendt ◽  
Sebastian Scherr
Keyword(s):  
Suicide Prevention ◽  
Information Seeking ◽  
The Internet ◽  
Online Information ◽  
Search Queries ◽  
Related Information ◽  
Search Terms ◽  
Celebrity Suicide ◽  
Online Information Seeking ◽  
The Impact

Abstract. Background: Research has already acknowledged the importance of the Internet in suicide prevention as search engines such as Google are increasingly used in seeking both helpful and harmful suicide-related information. Aims: We aimed to assess the impact of a highly publicized suicide by a Hollywood actor on suicide-related online information seeking. Method: We tested the impact of the highly publicized suicide of Robin Williams on volumes of suicide-related search queries. Results: Both harmful and helpful search terms increased immediately after the actor's suicide, with a substantial jump of harmful queries. Limitations: The study has limitations (e.g., possible validity threats of the query share measure, use of ambiguous search terms). Conclusion: Online suicide prevention efforts should try to increase online users' awareness of and motivation to seek help, for which Google's own helpline box could play an even more crucial role in the future.

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