scholarly journals The Development and Effects of Teaching Perspective Free-Hand Sketching in Engineering Design

2016 ◽  
Author(s):  
Ethan Hilton ◽  
Wayne Li ◽  
Sunni H. Newton ◽  
Meltem Alemdar ◽  
Raghuram Pucha ◽  
...  
Keyword(s):  
Computer Aided Design ◽  
Dimensional Space ◽  
Three Dimensional ◽  
Idea Generation ◽  
Final Design ◽  
Engineering Drawings ◽  
Design Software ◽  
Aided Design ◽  
Design Ideas ◽  
Three Dimensional Space

As Computer-Aided Design software has become more advanced, the use of hand-drawn engineering drawings has greatly diminished. This reduction has led to free-hand sketching becoming less emphasized in engineering education. While many engineering curriculums formerly included courses dedicated entirely to sketching and hand drafting, these topics are no longer addressed by most current curriculums. However, it has been observed that sketching has many benefits including improved communication in the design process, idea generation exercises, and visualizing design ideas in three-dimensional space. While isometric sketching has long been the preferred method in engineering curriculums, there are benefits of teaching perspective sketching including the creation of more realistic sketches for communication and idea generation. This paper presents the development of a perspective-based sketching curriculum and the study of how this method compares to more traditional methods of teaching sketching to students in a freshman level engineering graphics course. The results show that the perspective-based sketching method leads to equivalent gains in spatial visualization skills and final design self-efficacy as the traditional method of teaching hand sketching. While maintaining these skills, the new method also taught students additional skills. Through surveys and interviews, the students expressed that these skills would be useful to them in their future coursework and careers.

On the Educational-Methodical Complex of Discipline «Engineering and Computer Graphics» in Terms of Modernization of the Course of Descriptive Geometry

2018 ◽  
Vol 6 (5) ◽  
pp. 34-40 ◽  
Author(s):  
Юрий Поликарпов ◽  
Yuriy Polikarpov ◽  
М. Семашко ◽  
M. Semashko ◽  
Л. Худякова ◽  
...  
Keyword(s):  
Computer Graphics ◽  
Computer Aided Design ◽  
Dimensional Space ◽  
New Products ◽  
Three Dimensional ◽  
Machine Building ◽  
Educational Process ◽  
Descriptive Geometry ◽  
Aided Design ◽  
Three Dimensional Space

In connection with the use of machine-building enterprises to create new products of computer-aided design, which solve the problem in three-dimensional space, the problem of modernization of the course of descriptive geometry becomes relevant. The article describes the experience of the Department of descriptive geometry and drawing of the Ufa state aviation technical University for the modernization of the course of descriptive geometry. The questions of development of educational and methodical complex of the modernized discipline “engineering and computer graphics”, about its components which are prepared by Department and are used in educational process at training of bachelors in the directions which are included in the enlarged group of 150000 «Mechanical engineering» are in detail considered.

scholarly journals Applicability of Formwork Automation Design Software for Aluminum Formwork

2020 ◽  
Vol 10 (24) ◽  
pp. 9029
Author(s):  
Bokyeong Lee ◽  
Hyeonggil Choi ◽  
Byongwang Min ◽  
Dong-Eun Lee
Keyword(s):  
Computer Aided Design ◽  
Building Information Modeling ◽  
Three Dimensional ◽  
Simple Algorithm ◽  
Information Modeling ◽  
Two Dimensional ◽  
Building Information ◽  
Design Software ◽  
Modeling Data ◽  
Aided Design

In this study, by applying the developed formwork automation design software to three target structures, we reviewed the applicability of the formwork automation design software for the aluminum formwork. To apply the formwork automation design software, we built an aluminum formwork library based on the conversion of two-dimensional (2D) computer-aided design (CAD) data to three-dimensional building information modeling data for all the components of the aluminum formwork. The results of the automated formwork layout on the target structures using the formwork automation design software confirmed that the wall and deck members were laid out by the set algorithm according to the formwork size and direction. However, because of the limited functionality of the software, the level of completion of the formwork layout was found to be lower than that of the manual formwork layout based on 2D CAD data. The currently developed software is based on a simple algorithm, but has a drawback in that the automated layout is limited to only some of its members. Therefore, additional research should be conducted on the development of advanced software through the diversification of the algorithm, automation of preprocessing of the mesh, and analysis of the relationships of all the members comprising the formwork.

Design with Depth

2005 ◽  
Vol 127 (12) ◽  
pp. 32-34
Author(s):  
Jean Thilmany
Keyword(s):  
Computer Aided Design ◽  
Three Dimensional ◽  
3D Design ◽  
Computer Aided ◽  
University Professor ◽  
Business Web ◽  
Design Software ◽  
Computer Monitors ◽  
Web Surfing ◽  
Aided Design

This article discusses that how mechanical engineers will pair their already-familiar computer-aided design software with not-so-familiar three-dimensional (3D) displays for true 3D design. This is in accordance to a number of vendors' intent on supplying the newfangled computer monitors, within the next two decades. Although some of the devices are already on the market, affordable 3D monitors and displays seem to be more than a decade away, according to one university professor at work on such a project. Widespread adoption is still hindered by factors such as cost, software availability, and lack of a mouse-like device needed to interact with what’s on screen. Over the past 25 years, mechanical engineers have witnessed evolutionary change in design methods-from pen and paper to two-dimensional software and now to 3-D computer-aided design. While software makers have stepped up with sleeker and faster modeling capabilities, visualization lags. Computer users two decades out will carry out all business, web surfing, and gaming on 3-D displays. That next generation may well find the very idea of 2-D monitors to be as dated as record albums seem to teenagers today.

scholarly journals Solid Modeling of Geometric Objects in Point Calculus

2021 ◽  
Author(s):  
Evgeniy Konopatskiy ◽  
Andrey Bezditnyi
Keyword(s):  
Solid State ◽  
Computer Aided Design ◽  
Mechanical Engineering ◽  
Dimensional Space ◽  
Three Dimensional ◽  
Analytical Description ◽  
Solid Modeling ◽  
Geometric Objects ◽  
State Models ◽  
Three Dimensional Space

The paper describes an approach to solid modeling of geometric objects in the form of an organized three-parameter set of points in three-dimensional space. The relevance of the research topic is due to the widespread use of solid-state models in various branches of science and technology, mechanical engineering, construction and medicine. Solid-state computer models are currently one of the basic computer graphics tools and an integral part of computer- aided design and calculation systems. It is widely used as one of the control elements of CNC machines and 3D printing, the development of information systems in the design and construction of buildings and structures, finite element calculations of deformed states in aircraft and mechanical engineering, their manufacture in medicine, etc. The choice of point calculus as a mathematical apparatus for the analytical description of solid models of geometric objects is substantiated. Examples of modeling sets of elliptical bodies and toroidal bodies in a simplex of three-dimensional space are given.

Exploring 3D Modelling of Architectural Plan using Camera Tracing

2020 ◽  
Vol 8 (2) ◽  
pp. 40-43
Author(s):  
Shylesh Kumar ◽  
◽  
Shiva Ji
Keyword(s):  
Computer Aided Design ◽  
Architectural Design ◽  
3D Model ◽  
Idea Generation ◽  
3D Modelling ◽  
Modeling Tools ◽  
The Right ◽  
Aided Design ◽  
Design Ideas ◽  
Computational Technology

With the advent of technology, architecture has also benefitted by applying tools and equipment instead of conventional manual works. Computational technology has come to the aid of the design process. There is a shift from hand drawing to computer-aided design. Drawing had become more of a tool to explore design ideas and express proposed solutions. The coordination between hand and mind will remain superior until those tools progress. The physical human conditional gesture continues with reliability and is still relevant in idea generation and presentations. But in recent years, technology has driven architectural computing into a new exploratory domain. This research aims on building a procedural 3D model using a pixel-based tracing of the sketch of an architectural plan. The proposed method blurs the line between hand sketching and CAD, thus providing a quicker solution in visualizing the design. The point generated by vectorizing the bitmap data is used to achieve the desired curve. It is all done in a fully parametric model where the user has control over the properties for modeling. Finally, we validate our result with a study in which we compare the conventional modeling tools and establish a system to build the 3D model from an architectural plan. This study helps in believing that CAD and hand drawing could perfectly coexist and finding the right balance in architectural design.

Analysis of Computer-Aided Design Software Used in Home Textiles of Digital Design

2015 ◽  
Vol 751 ◽  
pp. 293-297
Author(s):  
Bin Feng ◽  
Hai Lian Deng ◽  
Li Ping Yang
Keyword(s):  
Computer Aided Design ◽  
Purchase Intention ◽  
Three Dimensional ◽  
Digital Design ◽  
Textile Design ◽  
Software Application ◽  
Computer Aided ◽  
Consumer Purchase Intention ◽  
Design Software ◽  
Aided Design

This paper will discuss computer-aided design software use in textile design, from the development of computer-aided design applications and home textiles design, software is the core of computer-aided design in textile design, graphic combined with three-dimensional software, building the systematic of home textiles design and computer-aided design to enhance the artistic beauty of textile design. Secondly, introduce the two-dimensional and three-dimensional software application in fabric pattern and textile design. We can see the convenience of computer-aided design, which combines technology and art in one. And from the comparison of plane and solid software, both proposed to build a systematic mutual, for textile design, which is based on the performance requirements and the effect of artistic design, and the theoretical analysis of consumer purchase intention and behavior; and discussing from the beauty of color、 formal and spatial three aspects of computer-aided design to enhance the artistic beauty of textile design.

scholarly journals Reach Out and Touch

2013 ◽  
Vol 135 (08) ◽  
pp. 30-35
Author(s):  
Judy Vance
Keyword(s):  
Virtual Reality ◽  
Product Design ◽  
Computer Aided Design ◽  
Design Research ◽  
Dimensional Space ◽  
Three Dimensional ◽  
Computing Technology ◽  
Computer Interfaces ◽  
Complex Design ◽  
Aided Design

This paper explores the use of immersive computing or virtual reality throughout a product design, assembly, and disassembly. Virtual reality or immersive computing creates a sense of presence for participants through devices that stimulate the senses. Immersive computing technology goes a step further by allowing the participant to interact with computer-generated models or environments rather than to passively view a screen. The technology is a collection of hardware and software that lets the participant explore digitally created objects within a three-dimensional space. Immersive computing presents a sharp contrast to existing two-dimensional computer interfaces used with computer-aided design (CAD) software programs. In order to illustrate the use of immersive computing in product design, research projects focus on using the technology to explore uncertainty in making design decisions. Industry is realizing the benefits of increased communication and deeper understanding of complex design issues through the use of immersive computing. Experts believe that when every engineer’s desktop includes immersive computing technology, the results will be better products produced more economically and with increased national competitiveness.

scholarly journals Three-Dimensional Simulator: Training for the Novices in Embolization With Liquid Agents

2021 ◽  
Author(s):  
Michal Matyjas ◽  
Marius Sauerbrey ◽  
Michael Scheel
Keyword(s):  
Standard Deviation ◽  
Confidence Level ◽  
Work Experience ◽  
Computer Aided Design ◽  
Three Dimensional ◽  
Simulator Training ◽  
Training Performance ◽  
Design Software ◽  
Aided Design ◽  
Post Hoc

Abstract Background: To design the simulator for novices without prior experience in embolization with liquid agents such as n-Butyl cyanoacrylate (n-BCA) and to evaluate the simulator using surveys and post hoc video analysis. Materials and Methods: The simulator was created using computer-aided design software and three-dimensionally printed. Before an embolization, trainees had filled the questionnaires regarding their level of expertise and self-reported confidence level. The participants were divided into the novice or the expert groups, were shown an instruction video, and each performed four embolizations. Subsequently, they completed the surveys on self-reported confidence level and assessed the simulator’s face and content validities.Results: 5 experts and 12 novices trained on the simulator. The experts were radiology fellows with at least five years of work experience. The novices were medical students and radiology residents in postgraduate years one and three, without any previous experience with embolization. Based on the surveys, the experts assessed the simulator as very useful for embolization training. Performance, e.g. mean duration embolization between experts (mean ± standard deviation = 189 ± 42 seconds) and novices (mean ± standard deviation = 235 ± 66 seconds) were significantly different (p = .001). The embolization, simulated complications, and educational capabilities of the simulator were evaluated positively. The self-reported confidence level rose by a mean of over two points, using the 5-point Lickert scale, in the novice group (p < .001).Conclusion: The liquid embolization simulator is an educational tool, mimicking embolization. It reduces the duration of embolization and improves the confidence level of the novices significantly.

Integrated CADCAM and Automotive Die and Mould Manufacture

1989 ◽  
Vol 203 (2) ◽  
pp. 137-144 ◽  
Author(s):  
A R Johnson
Keyword(s):  
Computer Aided Design ◽  
Three Dimensional ◽  
Fully Integrated ◽  
Automotive Components ◽  
Component Design ◽  
Computer Aided ◽  
Engineering Drawings ◽  
Mould Manufacture ◽  
Doubly Curved ◽  
Aided Design

Many automotive components are produced in very large quantities using manufacturing processes such as casting, moulding and forging. These processes require tooling which usually has geometrical complexities such as doubly curved surfaces, fillet curves, split lines and draft angles. Traditionally the component design is conveyed to the toolmaker for manufacture of the tooling, using conventional engineering drawings. The paper shows how tooling and component problems can arise due to the inability of conventional two-dimensional engineering drawings to unambiguously define complex three-dimensional shapes. Modern fully integrated computer aided design and computer aided manufacturing (CADCAM) systems may be used to overcome these problems. This is achieved by producing numerically controlled machining information to manufacture the tooling directly from the computer generated component design, thus eliminating the ambiguities associated with conventional engineering drawings. The use of a fully integrated CADCAM system for the design and manufacture of automotive components and tooling is described, and the technical and economic advantages gained from its use are detailed.

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