An Approach Toward Developing Metrics to Predict Performance and Creativity of Final Products in Project-Based Design Class

2012 ◽  
Author(s):  
Shun Takai ◽  
Ashok Midha ◽  
Marcos Esterman
Keyword(s):  
Correlation Analysis ◽  
Product Design ◽  
Design Process ◽  
Test Performance ◽  
Proof Of Concept ◽  
Concept Selection ◽  
Preliminary Results ◽  
Design Concepts ◽  
Early Stages

This paper investigates metrics to predict performance and creativity of final products at the early stages of product design, i.e., at concept selection and proof-of-concept (POC) prototyping. Three deliverables (concept sketches, POC prototypes, and final products) in a project-based design class are evaluated using Creative Product Semantic Scale (CPSS). Then, CPSS scores are analyzed using correlation analysis to find CPSS of concept sketches or POC prototypes that significantly correlate with CPSS or performance of final products. The preliminary results of this paper indicate that CPSS subscales may be used to predict performance and creativity of final products; that the earlier the stage of the design process is, the more difficult it is to predict performance of final products; and that building fully-functional prototypes is important to test performance of design concepts.

Toward a Methodology for Systematically Generating Energy- and Materials-Efficient Concepts Using Biological Analogies

2015 ◽  
Vol 137 (9) ◽  
Author(s):  
Julia M. O'Rourke ◽  
Carolyn C. Seepersad
Keyword(s):  
Empirical Study ◽  
Product Design ◽  
Design Process ◽  
Sustainable Product Design ◽  
Efficient Design ◽  
Design Concepts ◽  
Bioinspired Design ◽  
Sustainable Product ◽  
Tools And Methods

Energy- and materials-efficient designs are highly valued in the context of sustainable product design, but realizing products with significant changes in efficiency is a difficult task. One means to address this challenge is to use biological analogies during ideation. The use of biological analogies in the design process has been shown to greatly increase the novelty of concepts generated, and many authors in the bioinspired design (BID) community contend that efficiency-related benefits may be conferred as well. However, there is disagreement in the field as to when, how, and why efficiency-related benefits might arise in BIDs. This work explores these issues in-depth. A review of BID literature and an empirical study of BIDs lead to a better understanding of the types of efficiency advantages conferred by BID and set the stage for the development of tools and methods to systematically generate more energy- and materials-efficient design concepts using biological analogies.

scholarly journals A Visualization Approach to Facilitate the Early Stages of Product Design

2021 ◽  
Author(s):  
Jayesh Parmar
Keyword(s):  
Product Development ◽  
Product Design ◽  
Design Process ◽  
Quantitative Data ◽  
System Analysis ◽  
Computer Support ◽  
Anecdotal Evidence ◽  
Advantages And Disadvantages ◽  
Early Stages ◽  
Generic Design

Diagramming languages are heavily used in design and system analysis. Different languages have varying impacts on the effectiveness of designers. The author believes that there is no appropriate diagramming tool that is of substantial benefit to designers, especially in the early, pre-geometry stages of product development. A new tool, design schematics (DS), is introduced to fulfill this need. The general benefits of diagramming are outlined and the potential of diagramming tools is explored. Advantages and disadvantages of some existing diagramming methods are discussed. Analysis of diagramming methods motivates the development of DS. DS is consistent with the generic design process developed by Salustri. Several interrelated examples demonstrate how DS can capture important information during design stages. A detailed example of a coffee maker is carried out. It is executed as if the author were actually designing a coffee maker. Interrelated diagrams of the design highlight how DS helps in designing during the early stages. Computer support for development and full exploitation of DS is needed. The author believes that DS can be of great benefit to practising engineers. While there is not yet any quantitative data by which DS can be evaluated, there is anecdotal evidence suggesting that the tool has potential to be of benefit in design areas.

scholarly journals A Visualization Approach to Facilitate the Early Stages of Product Design

2021 ◽  
Author(s):  
Jayesh Parmar
Keyword(s):  
Product Development ◽  
Product Design ◽  
Design Process ◽  
Quantitative Data ◽  
System Analysis ◽  
Computer Support ◽  
Anecdotal Evidence ◽  
Advantages And Disadvantages ◽  
Early Stages ◽  
Generic Design

Diagramming languages are heavily used in design and system analysis. Different languages have varying impacts on the effectiveness of designers. The author believes that there is no appropriate diagramming tool that is of substantial benefit to designers, especially in the early, pre-geometry stages of product development. A new tool, design schematics (DS), is introduced to fulfill this need. The general benefits of diagramming are outlined and the potential of diagramming tools is explored. Advantages and disadvantages of some existing diagramming methods are discussed. Analysis of diagramming methods motivates the development of DS. DS is consistent with the generic design process developed by Salustri. Several interrelated examples demonstrate how DS can capture important information during design stages. A detailed example of a coffee maker is carried out. It is executed as if the author were actually designing a coffee maker. Interrelated diagrams of the design highlight how DS helps in designing during the early stages. Computer support for development and full exploitation of DS is needed. The author believes that DS can be of great benefit to practising engineers. While there is not yet any quantitative data by which DS can be evaluated, there is anecdotal evidence suggesting that the tool has potential to be of benefit in design areas.

Generalized Measures of Manufacturability

1990 ◽  
Author(s):  
David G. Jansson ◽  
Srinivasa Ravi Shankar ◽  
Francis S. K. Polisetty
Keyword(s):  
Product Design ◽  
Design Process ◽  
Quantitative Estimate ◽  
Design Guidelines ◽  
Cost Estimate ◽  
Design Issues ◽  
Design Concepts ◽  
Design Cost ◽  
Insight Into

Abstract This paper reports on the development of a framework for the evaluation of design concepts early in the design process through the use of a set of Generalized Manufacturabi1ity Indices (GMI). The indices are aimed at providing designers with a deeper insight into design issues which affect manufacturabi1ity than is available from a pure cost estimate. It is argued that at very early stages of design, cost estimates are inappropriate. Also, the GMI’s provide a more quantitative estimate of the manufacturability of a design than the use of design guidelines. The generalized nature of the GMI’s enables application of this approach to very dissimilar designs. The merging of manufacturing issues upstream in the design process through the framework presented here, is expected to increase both the speed and quality of product design.

Study on Knowledge-Based Product Design Framework for Facilitating the Interaction of Model Based Development and Prototyping

2014 ◽  
Vol 8 (3) ◽  
pp. 344-355 ◽  
Author(s):  
Yutaka Nomaguchi ◽  
◽  
Masashi Mizuta ◽  
Masaya Hirooka ◽  
Kikuo Fujita
Keyword(s):  
Product Design ◽  
Design Process ◽  
Modeling Language ◽  
Design Tools ◽  
Design Framework ◽  
Mechatronic System ◽  
Mechatronic Systems ◽  
Design Concepts ◽  
Model Based ◽  
Knowledge Based

Model-based development is a potential approach to designing complicated mechatronic systems. This paper proposes a product design framework for mechatronic systems, which integrates model-based development with prototyping and focuses on its process of deployment with hypothesis and verification. SysML is adopted as the modeling language for representing the mechatronic system without depending on specific domains, and FMEA is adopted as the method for describing the results of validation by prototyping. The DRIFT framework is used to capture designer’s operations on the design tools of SysML and FMEA and to manage its process. This study defines design concepts and design operations that are extracted from the patterns embedded in design process with SysML and FMEA. A design example of a ball-sorting robot is created using LEGO Mindstorms to demonstrate the proposed framework.

Design for Optimal Welding Orientation

1998 ◽  
Author(s):  
Z. Yao ◽  
H. D. Bradley ◽  
P. G. Maropoulos
Keyword(s):  
Product Design ◽  
Design Process ◽  
Process Planning ◽  
Welding Process ◽  
Planning System ◽  
Design Solution ◽  
Process Time ◽  
Computer Algorithms ◽  
Early Stages ◽  
Welding Processes

Abstract The process time and cost of a weld product depend largely on the decisions to select the weld orientation and relevant fixtures. Such decisions must be made at the early stages of the design process so that necessary design changes can easily be made to achieve an optimal design solution. However, traditional CAD and CAPP systems cannot support weld product design and welding process planning unless detailed design information is available. The present paper describes a “Design for Orientation” method which can be applied in the early stages of weld product design. The method is based on CAPABLE/Welding, which is an aggregate process planning system for weld products. By utilizing a feature-based aggregate product model in a concurrent engineering environment, feasible welding orientations can automatically be generated. Computer algorithms have been developed for evaluating the orientations of a weld feature, generating welding orientation options for a fabrication and processing the equipment constraints. The results can be used in the design process to reduce the number of set-ups, increase the efficiency of welding processes and reduce the cost of fixtures.

Which One Should I Pick? Concept Selection in Engineering Design Industry

2015 ◽  
Author(s):  
Christine A. Toh ◽  
Lisa M. Miele ◽  
Scarlett R. Miller
Keyword(s):  
Engineering Design ◽  
Design Process ◽  
Creative Process ◽  
Exploratory Study ◽  
Online Survey ◽  
Selection Process ◽  
Formal Concept ◽  
Design Practice ◽  
Concept Selection ◽  
Design Concepts

There has been a wealth of research focused on methods for encouraging creativity during the conceptual design process due to the innate importance of creativity in engineering design. However, much of the research has focused on creativity in student designers, often neglecting to consider how professional designers perceive creativity — particularly during concept selection. In addition, while there are many formal concept selection techniques that have been adopted in design practice, it is unknown what specific types of tools professional designers use to select design concepts or the importance designers place on creativity during this selection process. In order to address this research void, an exploratory study was conducted with 27 professional designers using an online survey to understand their perceptions of creativity and the use of concept selection techniques in design industry. The results of this study are used to identify the factors that effect concept selection and increase our understanding of the creative process in engineering design industry.

An Approach to Study Associations Between Design Concepts and Design Outcomes

2015 ◽  
Vol 137 (4) ◽  
Author(s):  
Shun Takai ◽  
Marcos Esterman ◽  
Ashok Midha
Keyword(s):  
Correlation Analysis ◽  
Cross Validation ◽  
Permutation Test ◽  
Classification Tree ◽  
Proof Of Concept ◽  
Classification Tree Analysis ◽  
Tree Analysis ◽  
Design Concepts ◽  
Leave One Out

This paper proposes an approach to investigate associations between design concepts and design outcomes. In the proposed approach, three deliverables (concept sketches, proof-of-concept (POC) prototypes, and final products) are evaluated using metrics called creative product semantic scale (CPSS). CPSS scores are analyzed using two methods: correlation analysis and classification tree analysis. Correlation analysis is used to investigate associations between the concept sketches or the POC prototypes and the final products. Classification tree analysis (together with leave-one-out cross-validation (LOOCV) and permutation test) is used to investigate relationships between CPSS scores and the retention of design concepts (i.e., concepts that are embodied in the final products). The proposed approach is illustrated using deliverables in a project-based design class.

Concept Generation and Sketching: Correlations With Design Outcome

2003 ◽  
Author(s):  
Maria C. Yang
Keyword(s):  
Design Process ◽  
Prior Experience ◽  
Concept Generation ◽  
Design Concepts ◽  
Early Stages ◽  
Information Tools

Design outcome is influenced by many hard-to-measure factors in the design process. This paper examines four of these factors to understand their possible correlation with design success. First, is the quantity of design concepts linked to design outcome? Second, is the timing of concept generation associated with design outcome? In both of these cases, the sketches created by designers were taken as evidence of concept generation. Third, is the type of sketch linked to design outcome? And finally, what is the role of a novice designer’s prior experience in design outcome? Statistically significant correlations were found between dimensioned drawings generated at the early stages of design and design outcome, and also between a novice designer’s prior fabrication and building experience and design outcome. Ultimately, the goal of this research is to develop paradigms for appropriate graphics and text-based information tools for design.

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