scholarly journals MODELLING AND PROFILING STUDENT DESIGNERS’ COGNITIVE COMPETENCIES IN COMPUTER-AIDED DESIGN

2021 ◽  
Vol 1 ◽  
pp. 2157-2166
Author(s):  
John Clay ◽  
Xingang Li ◽  
Molla Hafizur Rahman ◽  
Darya Zabelina ◽  
Charles Xie ◽  
...  
Keyword(s):  
Engineering Design ◽  
Computer Aided Design ◽  
Engineering Students ◽  
Design Research ◽  
Energy System ◽  
Psychological Tests ◽  
Cognitive Profile ◽  
Computer Aided ◽  
Cognitive Competencies ◽  
Aided Design

AbstractThere are three approaches to studying designers – through their cognitive profile, design behaviors, and design artifacts (e.g., quality). However, past work has rarely considered all three data domains together. Here we introduce and describe a framework for a comprehensive approach to engineering design, and discuss how the insights may benefit engineering design research and education. To demonstrate the proposed framework, we conducted an empirical study with a solar energy system design problem. Forty-six engineering students engaged in a week-long computer-aided design challenge that assessed their design behavior and artifacts, and completed a set of psychological tests to measure cognitive competencies. Using a machine learning approach consisting of k-means, hierarchical, and spectral clustering, designers were grouped by similarities on the psychological tests. Significant differences were revealed between designer groups in their sequential design behavior, suggesting that a designer's cognitive profile is related to how they engage in the design process.

Exploring the Engineering Design Process Through Computer-Aided Design and 3-D Printing

Science Scope ◽  
2017 ◽  
Vol 041 (01) ◽  
Author(s):  
Nicholas Garafolo ◽  
Nidaa Makki ◽  
Katrina Halasa ◽  
Wondimu Ahmed ◽  
Kristin Koskey ◽  
...  
Keyword(s):  
Engineering Design ◽  
Design Process ◽  
Computer Aided Design ◽  
Engineering Design Process ◽  
Computer Aided ◽  
Aided Design

Engineering and computer-aided design in teaching biotechnology

2015 ◽  
Author(s):  
Birutė Juodagalvienė ◽  
Birutė Tamulaitienė
Keyword(s):  
Engineering Design ◽  
Computer Aided Design ◽  
Basic Knowledge ◽  
Professional Work ◽  
Language Understanding ◽  
Knowledge And Skills ◽  
Computer Aided ◽  
Aided Design

Knowledge in engineering design is currently indispensable in many fields including bioengineering. The students attending the lecture course Engineering and Computer-Aided Design acquire the basic knowledge and skills in a very important language – graphics language. Understanding the objectives, purpose and fundamentals of the symbols and rules used in engineering design will be useful in studying other courses as well as will enable the students to apply this knowledge and skills in their professional work.

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.

Automatic Assessment of Students’ Engineering Design Performance Using a Bayesian Network Model

2020 ◽  
pp. 073563312096042
Author(s):  
Wanli Xing ◽  
Chenglu Li ◽  
Guanhua Chen ◽  
Xudong Huang ◽  
Jie Chao ◽  
...  
Keyword(s):  
Bayesian Network ◽  
Engineering Design ◽  
Network Model ◽  
Computer Aided Design ◽  
Personalized Feedback ◽  
Bayesian Network Model ◽  
Computer Aided ◽  
Design Software ◽  
K 12 ◽  
Aided Design

Integrating engineering design into K-12 curricula is increasingly important as engineering has been incorporated into many STEM education standards. However, the ill-structured and open-ended nature of engineering design makes it difficult for an instructor to keep track of the design processes of all students simultaneously and provide personalized feedback on a timely basis. This study proposes a Bayesian network model to dynamically and automatically assess students’ engagement with engineering design tasks and to support formative feedback. Specifically, we applied a Bayesian network to 111 ninth-grade students’ process data logged by a computer-aided design software program that students used to solve an engineering design challenge. Evidence was extracted from the log files and fed into the Bayesian network to perform inferential reasoning and provide a barometer of their performance in the form of posterior probabilities. Results showed that the Bayesian network model was competent at predicting a student’s task performance. It performed well in both identifying students of a particular group (recall) and ensuring identified students were correctly labeled (precision). This study also suggests that Bayesian networks can be used to pinpoint a student’s strengths and weaknesses for applying relevant science knowledge to engineering design tasks. Future work of implementing this tool within the computer-aided design software will provide instructors a powerful tool to facilitate engineering design through automatically generating personalized feedback to students in real time.

Application and Research of the Design Process of Concept A-Surface

2012 ◽  
Vol 628 ◽  
pp. 229-239 ◽  
Author(s):  
Xi Yuan Wang ◽  
Ying Jie Li ◽  
Xiaom Wen Xu ◽  
Jian Chen Han
Keyword(s):  
Engineering Design ◽  
Computer Aided Design ◽  
Process Model ◽  
Digital Model ◽  
Current Status ◽  
Basic Process ◽  
High Quality ◽  
Digital Modeling ◽  
Computer Aided ◽  
Aided Design

This paper narrates the basic principle of the computer aided design for car styling and analyzes the current status of building the high-quality surfaces in the computer aided design for car styling and “the basic process model of digital car styling” .to build “the sbasic process model based on CAS digital modeling. It points out the research content and method of the car digital model and provides theoretical basis for the research of the car styling digital model. In the conventional early design of car styling, generally the revision of design schemes consumes much time and energies. Revisions have been continuously made from the initial creative idea to the later clay model before entering into the engineering design. With the rapid development of the computer technology, the digital technology has become the leading one for the car styling development. During the design process, the digital design of car styling has evolved from the rendering into the engineering design. In order to convey the styling idea that expresses in the design sketch in a rapid and accurate way, it requires a clear expression system and based on the system, the digital model is made. Otherwise, even the good modeling technology and the high-quality surfaces become useless without clearly expressing the idea. The computer aided design for car styling is advanced, but there still exist many problems. The paper aims to put forward a rapidly modeling method of high quality car surfaces based on digital modeling and explore its feasibility during the actual application, by analyzing the current status of building the high-quality surfaces in the computer aided design for car styling and the basic process of the computer aided design for car styling and discussing problems existed during the expression of the design, as well as combining other methods of the computer aided design in other fields.

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