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Iowa State University

Industrial Design Publications

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Full-Text Articles in Art and Design

Design Of Monophasic Pulsed Magnetic Fields For Use In Low Bias Fields, Neelam Prabhu-Gaunkar, Wei S. Theh, R.J. Weber, Mani Mina Feb 2020

Design Of Monophasic Pulsed Magnetic Fields For Use In Low Bias Fields, Neelam Prabhu-Gaunkar, Wei S. Theh, R.J. Weber, Mani Mina

Industrial Design Publications

In this work, the design of a pulsed magnetic field generator, with user-selective pulsed modulation frequency is described. The ability to operate at various frequencies (single-frequency below 10 MHz) makes the system valuable to several areas such as medical treatments and pulsed switching systems. In this work, the pulsed magnetic field generator is designed to create localized field effects in portable magnetic resonance systems. Users may operate at a Larmor precession frequency between 100 kHz - 10 MHz and can achieve high currents through the load. Certain tunability can also be obtained by varying the load inductance or switching device conditions ...


Design Fixation From Initial Examples: Provided Versus Self-Generated Ideas, Keelin Leahy, Shanna R. Daly, Seda Mckilligan, Colleen M. Seifert Feb 2020

Design Fixation From Initial Examples: Provided Versus Self-Generated Ideas, Keelin Leahy, Shanna R. Daly, Seda Mckilligan, Colleen M. Seifert

Industrial Design Publications

Jansson and Smith [1] demonstrated that design fixation occurs when an example solution is provided along with a design problem. As a result of seeing an example concept -- even with its flaws pointed out -- new designs often share its features. In Jansson and Smith’s studies, a control group saw no example and showed less fixation to the example provided in the other group. However, another source of fixation from an initial example may arise in the control group from the designer’s own first-generated concept. We conducted a large-scale experiment with beginning engineers to investigate whether design fixation occurs ...


Evidence Of Problem Exploration In Creative Designs, Jaryn A. Studer, Shanna R. Daly, Seda Mckilligan, Colleen M. Seifert Nov 2018

Evidence Of Problem Exploration In Creative Designs, Jaryn A. Studer, Shanna R. Daly, Seda Mckilligan, Colleen M. Seifert

Industrial Design Publications

Design problems are often presented as structured briefs with detailed constraints and requirements, suggesting a fixed definition. However, past studies have identified the importance of exploring design problems for creative design outcomes. Previous protocol studies of designers has shown that problems can “co-evolve” with the development of solutions during the design process. But to date, little evidence has been provided about howdesigners systematically explore presented problems to create better solutions. In this study, we conducted a qualitative analysis of 252 design problems collected from publically available sources, including award-winning product designs and open-source design competitions. This database offers an independent ...


Transforming Early Concepts With Design Heuristics, Keelin Leahy, Shanna R. Daly, Jaclyn K. Murray, Seda Mckilligan, Colleen M. Seifert Oct 2018

Transforming Early Concepts With Design Heuristics, Keelin Leahy, Shanna R. Daly, Jaclyn K. Murray, Seda Mckilligan, Colleen M. Seifert

Industrial Design Publications

Idea development in the early phases of the design process often involves the transformation of initial concepts into more feasible alternatives. However, this important component of design activity is often under-emphasized in design education, and tools to facilitate iteration of designs are limited. This study investigated Design Heuristics as a tool for the further development of initial concepts created by student designers. In a single session, advanced engineering students created initial concepts, and then used Design Heuristics to transform these concepts into alternative designs. The concept sets generated were analyzed, and eight types of transformations were identified, including the enhancement ...


Supporting Idea Generation With Design Tools: Nesting Design Heuristics Within Morphological Analysis, Keelin Leahy, Shanna R. Daly, Seda Mckilligan, Colleen Seifert Jan 2018

Supporting Idea Generation With Design Tools: Nesting Design Heuristics Within Morphological Analysis, Keelin Leahy, Shanna R. Daly, Seda Mckilligan, Colleen Seifert

Industrial Design Publications

As some design problems are complex, generating concepts for a complete artefact may be overwhelming for designers, especially for novices. Students often learn to use morphological analysis (MA) to decompose a problem into subcomponents, allowing them to focus on designing for more specific functions. However, generating new ideas for subcomponents remains a challenge for novices. In this study, the authors investigated an educational method combining the morphological analysis approach with a tool designed to facilitate the generation of novel, differing ideas called design heuristics (DH). The results demonstrate that adding design heuristics within morphological analysis supported students in building upon ...


Situated Cultural Differences: A Tool For Analyzing Cross-Cultural Co-Creation, Tejas Dhadphale Jul 2017

Situated Cultural Differences: A Tool For Analyzing Cross-Cultural Co-Creation, Tejas Dhadphale

Industrial Design Publications

Designers in the global era are increasingly challenged to design for diverse cultural context. Both ethnographic and participatory design research methods are integral for conducting cultural inquiries. Co-creation offers an interactive setting for researcher to gain meaningful insights into the tacit and latent aspects of culture. The analysis framework for this study is based on the theoretical construct of situated cultural differences. In the process of co-creation, situated cultural differences become a diagnostic tool used by researchers to categories participants’ everyday experiences into meaningful cultural categories. This paper work focused on identifying the different situated differences used by participants during ...


Feedback In Concept Development: Comparing Design Disciplines, Seda Yilmaz, Shanna R. Daly Jan 2016

Feedback In Concept Development: Comparing Design Disciplines, Seda Yilmaz, Shanna R. Daly

Industrial Design Publications

Design feedback is an essential pedagogical tool to promote student design progress, yet little research has focused on what instructor feedback looks like, especially across design disciplines. In this paper, we analyzed feedback provided in dance choreography, industrial design, and mechanical engineering to explore variation in feedback type across disciplines as well as how feedback type encouraged students to take convergent or divergent paths in their design processes. Many common feedback types were observed across the three disciplines, regardless of variance in context and expectations, as well as some notable distinctions. With regards to feedback directing convergent and divergent thinking ...


What Is The Content Of “Design Thinking”? Design Heuristics As Conceptual Repertoire, Colin M. Gray, Colleen M. Seifert, Seda Yilmaz, Shanna R. Daly, Richard Gonzalez Jan 2016

What Is The Content Of “Design Thinking”? Design Heuristics As Conceptual Repertoire, Colin M. Gray, Colleen M. Seifert, Seda Yilmaz, Shanna R. Daly, Richard Gonzalez

Industrial Design Publications

When engaged in design activity, what does a designer think about? And how does she draw on disciplinary knowledge, precedent, and other strategies in her design process in order to imagine new possible futures? In this paper, we explore Design Heuristics as a form of intermediate-level knowledge that may explain how designers build on existing knowledge of “design moves”—non-deterministic, generative strategies or heuristics—during conceptual design activity. We describe a set of relationships between disciplinary training and the acquisition of such heuristics, and postulate how design students might accelerate their development of expertise. We conclude with implications for future ...


Directing Convergent And Divergent Activity Through Design Feedback., Shanna R. Daly, Seda Yilmaz Dec 2015

Directing Convergent And Divergent Activity Through Design Feedback., Shanna R. Daly, Seda Yilmaz

Industrial Design Publications

Design education across design disciplines prioritizes project-based courses to support student learning about design processes and strategies (Eastman, Newstetter, & McCracken, 1999; Smith, Sheppard, Johnson, & Johnson, 2005). Success in teaching these courses relies on the ability of instructors to mentor and guide students' design paths, allowing students some freedom to determine design decisions on their own, while facilitating a structure where they can learn successful design strategies.


Leap Of Imagination: Design Heuristics Help Students Think Outside The Box And Devise Novel, More Diverse Solutions., Julia Kramer, Shanna Daly, Seda Yilmaz, Colleen Seifert, Richard Gonzalez Oct 2015

Leap Of Imagination: Design Heuristics Help Students Think Outside The Box And Devise Novel, More Diverse Solutions., Julia Kramer, Shanna Daly, Seda Yilmaz, Colleen Seifert, Richard Gonzalez

Industrial Design Publications

Innovations depend on creative-concept generation, but engineering students often struggle to come up with ideas. They typically proffer a handful and fixate either on their first idea or existing solutions. As a result, students explore only a narrow subset of possible solutions.


How Do Designers Generate New Ideas? Design Heuristics Across Two Disciplines, Seda Yilmaz, Shanna R. Daly, Colleen M. Seifert, Richard Gonzalez Aug 2015

How Do Designers Generate New Ideas? Design Heuristics Across Two Disciplines, Seda Yilmaz, Shanna R. Daly, Colleen M. Seifert, Richard Gonzalez

Industrial Design Publications

Research supports the central role cognitive strategies can play in successful concept generation by individual designers. Design heuristics have been shown to facilitate the creation of new design concepts in the early, conceptual stage of the design process, as well as throughout the development of ideas. However, we know relatively little about their use in differing disciplines. This study examined evidence of design heuristic use in a protocol study with 12 mechanical engineers and 12 industrial designers who worked individually to develop multiple concepts. The open-ended design problem was for a novel product, and the designers’ sketches and comments were ...


Investigating The Impacts Of Design Heuristics On Idea Initiation And Development, Julia Kramer, Shanna R. Daly, Seda Yilmaz, Colleen M. Seifert, Richard Gonzalez Jul 2015

Investigating The Impacts Of Design Heuristics On Idea Initiation And Development, Julia Kramer, Shanna R. Daly, Seda Yilmaz, Colleen M. Seifert, Richard Gonzalez

Industrial Design Publications

This paper presents an analysis of engineering students’ use of Design Heuristics as part of a team project in an undergraduate engineering design course. Design Heuristics are an empirically derived set of cognitive “rules of thumb” for use in concept generation. We investigated heuristic use in the initial concept generation phase, whether heuristic-inspired concepts were carried through to later design process stages, and how concept synthesis within each team’s design process related to heuristic use. The results reveal widespread use of Design Heuristics among the concepts generated by individuals and selected by teams for further development, and a prevalence ...


Can Experienced Designers Learn From New Tools? A Case Study Of Idea Generation In A Professional Engineering Team, Seda Yilmaz, Shanna R. Daly, James L. Christian, Colleen M. Seifert, Richard Gonzalez Sep 2013

Can Experienced Designers Learn From New Tools? A Case Study Of Idea Generation In A Professional Engineering Team, Seda Yilmaz, Shanna R. Daly, James L. Christian, Colleen M. Seifert, Richard Gonzalez

Industrial Design Publications

Generating novel ideas is a challenging part of engineering design, especially when the design task has been undertaken for an extended period of time. How can experienced designers develop new ideas for familiar problems? A tool called Design Heuristicsprovides strategies that support engineers in considering more, and more different, concepts during idea generation. Design Heuristics have been shown to help novice engineers create a set of more diverse and creative candidate concepts. In this case study, we extended this approach to a group of professional engineers who had worked on a specific product line for many years. In a ...


Assessing Design Heuristics For Idea Generation In An Introductory Engineering Course, Shanna R. Daly, James L. Christian, Seda Yilmaz, Colleen M. Seifert, Richard Gonzalez Jan 2012

Assessing Design Heuristics For Idea Generation In An Introductory Engineering Course, Shanna R. Daly, James L. Christian, Seda Yilmaz, Colleen M. Seifert, Richard Gonzalez

Industrial Design Publications

Design Heuristics are prompts that encourage design space exploration during concept generation. Design Heuristics were developed by analyzing trends in innovative products and patterns in ideation by engineering and industrial designers of varying experience levels. In this study, 48 freshmen engineering students were given a short design task and a set of twelve Design Heuristics Cards. Each card described a heuristic, and gave two examples of its application in a product. Students were asked to create new design concepts using the heuristics. The results showed that the concepts created without Design Heuristics were less developed, and were often replications of ...