scholarly journals Research and Analysis of Machine Design Based on Computer Aided Technology

2021 ◽  
Vol 2074 (1) ◽  
pp. 012048
Author(s):  
Jinhua Yan
Keyword(s):  
Engineering Design ◽  
Mechanical Engineering ◽  
Mechanical Design ◽  
Machine Design ◽  
Continuous Development ◽  
New Era ◽  
Computer Aided ◽  
Intelligent Technology ◽  
Automation Technology

Abstract Compared with the traditional mechanical engineering design, the intelligent mechanical engineering automation design has obvious economic applicability. In recent years, with the continuous development of China’s mechanical engineering design field, mechanical engineering design has been effectively innovated and promoted, automation technology as a representative of which also has an obvious role. In this paper, the concept of mechanical design, manufacturing and construction in the new era is expounded, and the principle and application of intelligent technology are analyzed for readers’ reference.

Introductory remarks

1971 ◽  
Vol 321 (1545) ◽  
pp. 145-146
Keyword(s):  
Engineering Design ◽  
Computer Aided Design ◽  
Mechanical Engineering ◽  
Future Research ◽  
Design Work ◽  
Computer Aided ◽  
Hidden Line ◽  
Multi Access ◽  
Aided Design ◽  
Design And Manufacture

From time to time the Royal Society organizes meetings for the discussion of some new development in engineering and applied science. It seemed possible to the organizers of this meeting that it would be profitable to bring together workers in industry and in the universities to discuss some aspect of computer-aided design. As you will see we have chosen the application of computer aids to mechanical engineering design and manufacture. This restriction to mechanical engineering was deliberate, partly because the application of computer aids to mechanical engineering design is somewhat behind similar activities in electrical and civil engineering. Another reason is that the development of such applications has reached a particularly interesting stage, and it is now perhaps appropriate to review progress and to discuss the directions in which future research should proceed. Although some examples of computer-aided design in mechanical engineering can be found from the earliest days of computing, the development really started in the late fifties with early experiments in the use of graphic displays and with the introduction of multi-access computing. Some may date the beginning of the developments which we are going to discuss today, from the work at M. I. T. on automated programmed drawing started in 1958. This has led to a concentration of effort on graphics and computer-aided drafting. Much research has been done on the mathematical description of curves, surfaces and volumes in a form suitable for engineering design. Work has been done on the automatic dimensioning of drawings, hidden line removal, the prob­lems of lofting, etc.

Improving students’ freehand sketching skills in mechanical engineering curriculum

2017 ◽  
Vol 46 (3) ◽  
pp. 274-286 ◽  
Author(s):  
Jacek Uziak ◽  
Ning Fang
Keyword(s):  
Problem Solving ◽  
Engineering Design ◽  
Current Literature ◽  
Mechanical Engineering ◽  
Engineering Students ◽  
Critical Role ◽  
Engineering Curriculum ◽  
Communication Tool ◽  
Modern Engineering ◽  
Computer Aided

Freehand sketching is a fundamental skill in mechanical engineering and many other engineering disciplines. It not only serves as a communication tool among engineers, but plays a critical role in engineering design and problem solving. However, as computer-aided drafting has replaced traditional drawing classes nowadays, the training of students’ freehand sketching skills has been almost completely eliminated in modern engineering curricula. This paper describes the attributes of freehand sketching and its roles in several essential aspects of engineering; in particular, in its roles in problem solving, of which current literature has ignored. Representative examples are provided to show students’ freehand sketching skills in problem solving in a foundational undergraduate mechanical engineering course. Pedagogical suggestions are made on how to teach freehand sketching to engineering students.

Identifying the Fundamental Geometric Attributes of Design: An Application of Distinctive Feature Theory

1991 ◽  
Author(s):  
John D. Chovan ◽  
Manjula B. Waldron
Keyword(s):  
Computer Aided Design ◽  
Mechanical Engineering ◽  
Mechanical Design ◽  
Verbal Protocols ◽  
Distinctive Features ◽  
Human Machine Interfaces ◽  
Computer Aided ◽  
Engineering Drawings ◽  
Aided Design ◽  
Feature Theory

Abstract The identification of a basal set of geometric attributes used by designers to describe mechanical engineering design can provide useful information on the manner in which designers communicate information about mechanical design. In this paper, geometric attributes were identified from descriptions provided by five mechanical designers while they read and analyzed thirteen mechanical engineering drawings of varying complexity. From the verbal protocols, the geometric attributes were identified and then subject to a cluster analysis. A set of fifteen geometric attributes were identified as distinctive features since they were minimally sufficient to cluster the set of 61 design features contained in the drawings. These distinctive features provide insights into how designers reason about mechanical engineering drawings, which may be useful when designing human-machine interfaces for computer-aided design.

Project-Oriented Learning of Mechanical Engineering Design

2010 ◽  
Author(s):  
Daniel Koutny´ ◽  
David Palousˇek ◽  
Jan Brandejs
Keyword(s):  
Rapid Prototyping ◽  
Engineering Design ◽  
Mechanical Engineering ◽  
Industrial Design ◽  
Mechanical Design ◽  
Digital Technologies ◽  
Design Phase ◽  
New Approach ◽  
Vacuum Casting ◽  
Advanced Technologies

The article explains a newly utilized project-oriented curriculum at the Institute of Machine and Industrial Design. In addition to digital technologies, the curriculum focuses on practical tasks with the utilization of advanced technologies in the area of mechanical design processes, such as Rapid Prototyping, Vacuum Casting etc. The paper describes a new approach to teamwork, where groups of students manage project tasks from the design phase up to the manufacturing of the real product.

Studying Your Students as They Learn: A Case Study of CAD Education

2009 ◽  
Author(s):  
R. F. Hamade
Keyword(s):  
Learning Styles ◽  
Computer Aided Design ◽  
Mechanical Engineering ◽  
Mechanical Design ◽  
Learning Preferences ◽  
Actual Behavior ◽  
Computer Aided ◽  
Cad Models ◽  
Behavioral Attributes ◽  
Aided Design

Having observed mechanical engineering seniors at the American University of Beirut (AUB) go about learning computer-aided design (CAD) in a formal setting, the instructors always wondered why some students acquire CAD skills with relative ease while some others seem to struggle. For this reason, a methodical study was launched in order to address this issue. Hence, and in order to “study the students as they learn” was accomplished by following 74 mechanical engineering seniors (it took three academic years including AY 2008–09 in order to have access to this relatively large number of trainees) as they went through a semester-long formal training on a commercial computer-aided design (CAD) package (Pro/Engineer, version Wildfire). The study methodically explored the trainees’: (1) technical background, (2) behavioral attributes (willingness-to-learn), and their (3) learning preferences. Investigating the technical background included quantifying the trainees’ relevant technical competencies specifically: basic math foundation, advanced math foundation, CAD-related mathematical foundation, computer science and engineering foundation, methodologies related to CAD, graphics foundation, and mechanical design foundation. Determining the trainees’ behavioral attributes included exploring their initial attitude towards learning of CAD, perception and imagination, and gauging their actual behavior (practice and CAD skills learned) throughout the training. Trainees’ learning styles were determined according to the index of learning styles, ILS [1]. Furthermore, and in order to assess the trainees’ progress in CAD knowledge acquisition, competency tests were conducted at four intervals throughout the semester-long study (2, 4, 7, and 12 weeks). The assessment involved hands-on building of CAD test parts of comparable complexity. At the conclusion of the study, statistical methods were used to correlate the trainees’ attributes with their monitored performance. Only a fraction (17 out of a class of 74 trainees or about one in four) of the trainees were found to fit the “star CAD trainee” mold which was defined in this study as someone who is fast on the tube as well as perceptive enough to be see through the procedure of building progressively more sophisticated CAD models. A profile of this “star CAD trainee” character emerges as an individual who is technically competent and perceptive, with personal drive and positive attitude, and who possesses active, sensor, sequential and visualizing learning styles.

The Status of Design for Sustainability in Mechanical Engineering Design Education

2011 ◽  
Author(s):  
Jeffrey R. Mountain
Keyword(s):  
Engineering Design ◽  
Carbon Balance ◽  
Design Education ◽  
Mechanical Engineering ◽  
Mechanical Design ◽  
Bottom Line ◽  
Engineering Programs ◽  
Design For Sustainability ◽  
Engineering Design Education ◽  
The Status

Sustainability is gaining national and global prominence as a key external constraint in engineering design. Courses in solar energy and wind energy have been common offerings, but due to their power production focus, do not address sustainability in the broader context of design. The question becomes, are undergraduate mechanical engineering programs evolving to introduce design for sustainability concepts, such as life cycle assessment, the triple bottom line, and carbon balance, in the broader context of mechanical engineering design? A review of mechanical engineering programs at well recognized universities indicates that most course offerings with definable sustainable design content remain focused on sustainable energy production. In addition, most of these courses are primarily graduate level offerings, indicating a substantial population of recent graduate engineers with limited knowledge of the scope of design for sustainability. Isolated efforts to broaden awareness of sustainability concepts were also identified and will be reported. These programs may serve as models for integration of sustainability into the general mechanical design education.

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