Representing analogies to influence fixation and creativity: A study comparing computer-aided design, photographs, and sketches

2015 ◽  
Vol 29 (2) ◽  
pp. 161-171 ◽  
Author(s):  
Olufunmilola Atilola ◽  
Julie Linsey
Keyword(s):  
Computer Aided Design ◽  
Idea Generation ◽  
Generation Process ◽  
Critical Question ◽  
Design Fixation ◽  
Design Concepts ◽  
Computer Aided ◽  
Aided Design ◽  
Effective Design

AbstractMany tools are being developed to assist designers in retrieving analogies. One critical question these designers face is how these analogues should be represented in order to minimize design fixation and maximize idea generation. To address this question, an experiment is presented that compares various representations' influence on creativity and design fixation. This experiment presents an effective example (analogue) as computer-aided design (CAD), sketch, or photograph representations. We found that all representations induced fixation, and the degree of fixation did not vary significantly. We also found that CAD representations encourage engineering designers to identify and copy the key effective features of the example. CAD and photo representations also produced a higher quality of design concepts. Results from this experiment offer insights into how these various representations may be used in examples during idea generation; CAD representations appear to offer the greatest advantages during the idea generation process. The results from this experiment also indicate that analogical databases of effective design examples should include CAD and photolike images of the analogue rather than sketches.

scholarly journals Influence of Sequential CAD/CAM Milling on the Fitting Accuracy of Titanium Three-Unit Fixed Dental Prostheses

Materials ◽  
2021 ◽  
Vol 14 (6) ◽  
pp. 1401
Author(s):  
Doo-Bin Song ◽  
Man-So Han ◽  
Si-Chul Kim ◽  
Junyong Ahn ◽  
Yong-Woon Im ◽  
...  
Keyword(s):  
Titanium Alloy ◽  
Computer Aided Design ◽  
Dental Prostheses ◽  
Computer Aided ◽  
Cad Cam ◽  
Fixed Dental Prostheses ◽  
Gap Data ◽  
Aided Design ◽  
Fitting Accuracy

This study investigated the fitting accuracy of titanium alloy fixed dental prostheses (FDP) after sequential CAD/CAM (Computer Aided Design/Computer Aided Manufacturing) fabrication. A three-unit FDP model connecting mandibular second premolars and molars was prepared and scanned to fabricate titanium FDPs by CAD/CAM milling. A total of six FDPs were sequentially milled in one titanium alloy disk using a new set of burs every time (n = 4). The fitting accuracy of FDPs was mesiodistally evaluated by a silicone replica technique and the measurement was triplicated at four different locations: MO (marginal opening), MG (marginal gap), AG (axial gap), and OG (occlusal gap). Data were statistically analyzed using ANOVA and Tukey’s HSD test. The fitting accuracy of PMMA (polymethyl methacrylate) FDPs milled using the worn or new bur were evaluated by the same procedure (n = 6). The mean dimensions of titanium FDP for all measuring positions, except for AG, were significantly increased from the third milling. However, no difference was noted between the first FDP and the second FDP milled with the same set of burs. Severe edge chippings were observed in all milling burs. Detrimental effects of the worn burs on the fitting accuracy were demonstrated in the CAD/CAM-milled PMMA FDP. The results recommend proper changing frequency of cutting burs to achieve the quality of fit and predictable outcomes for dental CAD/CAM prostheses.

scholarly journals Pushing the Design Envelope with CAE

1998 ◽  
Vol 120 (11) ◽  
pp. 66-71 ◽  
Author(s):  
Mar Halpern
Keyword(s):  
Computer Aided Design ◽  
Electronics Packaging ◽  
General Purpose ◽  
Element Analysis ◽  
Packaging Design ◽  
Computer Aided ◽  
Aided Design ◽  
Cae Simulation ◽  
Disc Drive

This article examines the growing usefulness of computer-aided engineering (CAE) programs for the design of electronics packaging. CAE combined with expert interpretation, can help manufacturers quickly satisfy demand for increasingly small yet reliable products. Currently, three classes of software specifically support electronics packaging design: integrated computer-aided design (CAD) CAE software, general-purpose CAE software, and specialty CAE software solutions. The integrated CAE software emphasizes automatic creation and updating of finite-element-analysis (FEA) models based on CAD geometry. The effectiveness of this associativity between CAD and FEA depends on the product behavior to be evaluated and the quality of implementation. CAE simulation can calculate the maximum acceptable loads on pins, as well as the vibration characteristics of components. Solids-based CAD helps detect interference problems across components, as in these exploded views of a disc drive and a headset. While several general-purpose CAE suppliers permit engineers to build customized environments for automating model creation, specialty suppliers such as Pacific Numerix deliver the specific automated capabilities and connector libraries.

scholarly journals AUTOMATION OF STRUCTURAL AND PARAMETRIC ANALYSIS OF PROJECT DECISIONS AND TRAINING OF THE DESIGNER OF MACHINE-BUILDING PRODUCTS WITH CAD COMPASS

2019 ◽  
Vol 2018 (2) ◽  
pp. 26-33
Author(s):  
Александр Афанасьев ◽  
Afanasyev Afanasyev ◽  
Сергей Бригаднов ◽  
Sergey Brigadnov
Keyword(s):  
Adaptive Learning ◽  
Computer Aided Design ◽  
Parametric Analysis ◽  
Three Dimensional ◽  
Machine Building ◽  
Building Products ◽  
Computer Aided ◽  
Design Solutions ◽  
Aided Design

The actual task in the field of computer-aided design of machine-building objects is to increase the level of automation of structural-parametric analysis of design solutions due to the repetition of their use, reducing the number of design operations and ensuring the corresponding competencies of designers. Developed methods and algorithms should ensure the acquisition of the necessary competencies for the designer for successful project activities in the field of computer-aided design, increasing the effectiveness of training. The system of analysis of design solutions should improve the quality of design solutions implemented in CAD KOMPAS-3D. In this paper, an overview of methods, systems and tools for analyzing design solutions implemented in the CAD-3D environment. The main features of such systems are described, their main disadvantages are identified: the lack of functions for determining non-optimal sequences of design operations, the inability to automatically rebuild a three-dimensional model of a machine-building product on the basis of analysis of the design model tree. A complex system for the analysis of project solutions and the training of a designer was developed and implemented, based on methods, models and algorithms for analysis and adaptive learning. The results of a computational experiment are presented, on the basis of which it can be concluded that the use of developed software enhances the efficiency and quality of the designer's training in the processes of constructing three-dimensional solid-state machine-building products in CAD KOMPAS-3D.

Assessing Computer-Aided Design Skills

2018 ◽  
pp. 7382-7391
Author(s):  
Yi Lin Wong ◽  
Kin Wai Michael Siu
Keyword(s):  
Hong Kong ◽  
Problem Solving ◽  
Computer Aided Design ◽  
Computer Skills ◽  
High Ability ◽  
Computer Aided ◽  
Current Assessment ◽  
Design Skills ◽  
Aided Design

This chapter discusses the difficulties of CAD assessment through examining and reviewing existing CAD examination questions in Hong Kong. Based on the review, limitations of the current assessment are highlighted. It is argued that the existing method is inconsistent with the problem solving nature of the software and is unable to assess students with high ability and advanced drawing skills. Recommendation and improvement directions are suggested in the chapter to optimize the quality of assessment. Other subjects which also involve assessment of computer skills and design may also benefit from the recommendations.

The Computer Aided Design Intelligent Design System of Threshing Parts of Combined Harvester

2012 ◽  
Vol 235 ◽  
pp. 288-293
Author(s):  
Fei Yu ◽  
Tian Yu Feng
Keyword(s):  
Expert System ◽  
Computer Aided Design ◽  
Intelligent Design ◽  
Design Method ◽  
Design System ◽  
Computer Aided ◽  
Database Technology ◽  
Aided Design ◽  
Parameterization Design

The TLCADS(The Computer Aided Design Intelligent Design System of Threshing parts of Combined Harvester)which is developed by adopting the principle of expert system, parameterization design method and database technology, can greatly improve the efficiency and quality of the design of Threshing parts of Combined Harvester with the functions of general parameterization design,systematic of components,engineering drawing and computer analysis.

The Integration of Quality Function Deployment and Computer Aided Design in Seat Comfort Design and Analyses

2013 ◽  
Author(s):  
Saed Amer ◽  
Landon Onyebueke
Keyword(s):  
Computer Aided Design ◽  
Quality Function Deployment ◽  
New Technologies ◽  
Human Subjects ◽  
Comfort Level ◽  
Quality Function ◽  
Seat Comfort ◽  
Computer Aided ◽  
Aided Design

The concerns of comfortable seat grew more momentous as this era brought new technologies leading to nonstop flights and more dependence on computers; hence, individuals spend more time seated to perform everyday activities. Uncomfortable prolonged sitting may reduce the quality of such activities and may yield health implications. Seat comfort evaluations are conventionally done post-production i.e. a fully produced seat is usually required in order to evaluate its level of comfort. Also, the inputs from the customer which could have significant impression on the comfort level of the seat are usually not considered during the design stages. This study proposes a solution with a system that performs seat comfort design and evaluation by integrating a Quality Function Deployment (QFD) tool with Computer Aided Design (CAD) technique. Several laboratory tests were performed to validate the proposed technique and the obtained results verify that the system can be a valid tool that can surrogate the traditional techniques for comfort analyses. The proposed system offers a comprehensive and systematic tool for the design and prediction of seat comfort by integrating the voice of the customer via QFD into CAD. Taking everything into account, the proposed system will diminish the need for physical prototyping, limit the involvement of human subjects and facilitate information sharing.

The current state of affairs in 3D modeling of machine-building profile parts

2021 ◽  
pp. 32-38
Author(s):  
E.T. Agaev ◽  
◽  
A.Yu. Bekmeshov ◽  
Keyword(s):  
Computer Aided Design ◽  
Machine Building ◽  
Software Environment ◽  
Current State ◽  
Computer Aided ◽  
Correct Representation ◽  
Design Systems ◽  
State Of Affairs ◽  
Aided Design

The article discusses the method of improving the quality of computer-aided design of machine-building products based on the introduction of the concept of 3D drawing. A comparative analysis of the application of a 3D drawing and the use of a standard flat drawing for the manufacture of machine-building profile products on modern CNC machines is given. The 3D drawings of the products are developed in the SolidWorks software environment. Based on the analysis, it is concluded that the use of 3D drawings in compliance with their correct representation in computer-aided design systems will reduce the time for the manufacture of relevant parts.

Assessing Computer-Aided Design Skills

2019 ◽  
pp. 1339-1349
Author(s):  
Yi Lin Wong ◽  
Kin Wai Michael Siu
Keyword(s):  
Hong Kong ◽  
Problem Solving ◽  
Computer Aided Design ◽  
Computer Skills ◽  
High Ability ◽  
Computer Aided ◽  
Current Assessment ◽  
Design Skills ◽  
Aided Design

This chapter discusses the difficulties of CAD assessment through examining and reviewing existing CAD examination questions in Hong Kong. Based on the review, limitations of the current assessment are highlighted. It is argued that the existing method is inconsistent with the problem-solving nature of the software and is unable to assess students with high ability and advanced drawing skills. Recommendation and improvement directions are suggested in the chapter to optimize the quality of assessment. Other subjects which also involve assessment of computer skills and design may also benefit from the recommendations.

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