Recent Publications

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Art Meets Engineering Design: An Approach for Reducing Sketch Inhibition in Engineers During the Design Process

Abstract: While much prior work has been done regarding sketching and its impact on design and a few on how to train engineers to sketch,… Continue reading...
IMG_0737

Evaluating the Bottom-Up Method for Functional Decomposition in Product Dissection Tasks

Abstract: The purpose of this study is to continue to explore which function identification methods work best for specific design tasks. Prior literature describes the… Continue reading...
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Prioritizing Design for Environment Strategies Using a Stochastic Analytic Hierarchy Process

Abstract: This paper describes a framework for applying design for environment (DfE) within an industry setting. Our aim is to couple implicit design knowledge such… Continue reading...
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KINETOGAMI, A Reconfigurable and Printable Sheet Folding

Abstract: As an ancient paper craft originating from Japan, origami has been naturally embedded and contextualized in a variety of applications in the fields of… Continue reading...
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Contextualizing Environmental Sustainability in Design Engineering Curricula

Abstract: Consideration of environmental sustainability is significantly altering the nature of the mechanical design process. This necessitates integration of sustainability related learning content in design… Continue reading...
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PROTO-TAI: Quick Design Prototyping using Tangible Assisted Interfaces

Abstract: In the real world, we use our innate manual dexterity to create and manipulate 3D objects. Conventional virtual design tools largely neglect this skill… Continue reading...
Lateral and vertical transformations observed in the study. Lateral transformations can occur through modification of an existing sketch, or through the creation of a new sketch inspired from an existing sketch, to create a new idea. Vertical transformations can occur through adding details such as dimensions,  annotations, or features to an existing sketch, or through a new sketch showing a different detail, to develop an existing idea.

Collaborative Sketching with skWiki: A Case Study

Abstract: Sketching for conceptual design has traditionally been performed on paper. Recent computational tools for conceptual design have leveraged the availability of hand-held computing devices… Continue reading...
We present a screenshot of the ViSER tool. The supply chain shown is representative of the peripheral computer equipment industry. Each callout points to a specific feature of the ViSER platform and are described as follows: (A) a directed graph that represents the supply chain network as the edges connected to the selected nodes are shown in red, (B) a representation fo the product system graph oriented by a combination of force directed physics and user manipulation, (C) change propagation results for selected nodes of interest, (D) a comparison chart of impact categories for selected nodes of interest, (E) sparklines for each criterion with outliers shown in red and (F) the profile of selected node attributes, e.g.\ time and smog. A video demonstration of ViSER can be found here: \href{http://youtu.be/pDJAqW9H3ME}{\textcolor{blue}{http://youtu.be/pDJAqW9H3ME}}.

ViSER: Visualizing supply chains for eco-conscious redesign

Abstract: In this paper, we present ViSER, an interactive visual analytics platform that visualizes supply chain data for enabling eco-conscious redesign. ViSER provides a visualization… Continue reading...
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Remanufacturing of Turbine Blades by Laser Direct Deposition with Its Energy and Environmental Impact Analysis

Abstract: Laser direct deposition provides an attractive and cost effective means for repairing or remanufacturing high value engineering components. This study demonstrates the successful repair… Continue reading...
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HexaMorph: A Reconfigurable and Foldable Hexapod Robot Inspired by Origami

Abstract: Origami affords the creation of diverse 3D objects through explicit folding processes from 2D sheets of material. Originally as a paper craft from 17th… Continue reading...
ChiroBot

ChiroBot: Modular-Robotic Manipulation via Spatial Hand Gestures.

Abstract: We introduce ChiroBot, a cyber-physical construction kit that allows users to create custom robots out of craft material, easily assemble the robots using joint… Continue reading...
FrameworkExample

PuppetX: A Framework for Gestural Interactions With User Constructed Playthings

Abstract: We present PuppetX, a framework for both constructing playthings and playing with them using spatial body and hand gestures. This framework allows users to… Continue reading...
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Tracing and Sketching Performance using Blunt-tipped Styli on Direct-Touch Tablets

Abstract: Direct-touch tablets are quickly replacing traditional pen-and-paper tools in many applications, but not in case of the designer’s sketchbook. In this paper, we explore… Continue reading...
FeatureImage

zPots : A Virtual Pottery Experience Through Spatial Interactions Using the Leap Motion Device

Abstract: We present zPots, an application for gesture-free hand-based design of virtual pottery enabled by the Leap Motion device. With zPots, a user can shape… Continue reading...
Chiron.

Chiron: Interpreting signals from Capacitive Patterns and Inertial Sensors for intuitive Shape Modeling.

Abstract: We introduce Chiron: A wearable device for the hand that reads the digital and analogous signals from capacitive sensor patterns and orientation sensors, to… Continue reading...
Figure: Detail of final robot illustration by an artist created using Juxtapoze while freely exploring (10 min). The task log shows substantial
time spent on edits and personalization of constituent shapes.

Juxtapoze: Supporting Serendipity and Creative Expression in Clipart Compositions

Abstract: Juxtapoze is a clipart composition workflow that supports creative expression and serendipitous discoveries in the shape domain. We achieve creative expression by supporting a… Continue reading...
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skWiki: A Multimedia Sketching System for Collaborative Creativity

Abstract: We present skWiki, a web application framework for collaborative creativity in digital multimedia projects, including text, hand-drawn sketches, and photographs. skWiki overcomes common drawbacks… Continue reading...
AbstractionDiagram

Understanding Abstraction In Design: A Comparison of Three Functional Analysis Methods for Product Dissection

Abstract: In design classes, functional analysis is a process that is typically used to assist students with identifying essential functions to aid in the development… Continue reading...
foursquare

Profiling Energy Consumption of Smartphone Users for Environmentally Efficient Business Decisions

Abstract: The recent proliferation of electronic products has led to a strong unmet need for understanding environmental implications of new technologies. According to Nielsen, 66% … Continue reading...
Treemap

shapeSift: Suggesting sustainable options in design reuse from part repositories

Abstract: shapeSift is a framework for supporting sustainability based decision making during selection of similar previous designs from part repositories. Our framework is designed for… Continue reading...
Flowchart of the analysis performed on text corpora from the discussions, representations, and reports from student brainstorming sessions

Understanding Brainstorming through Text Visualization

Abstract: Automated content analysis software tools have significantly aided in the study of design processes in the recent past. However, they suffer from the lack… Continue reading...
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Multiscale kernels using random walks

Abstract: 11th Symposium on Geometry processing, 3-5 July, Genova, Italy, 2013. Proceedings of the Computer Graphics Forum, Computer Graphics Forum, Volume 33, Issue 1, pages… Continue reading...
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Shape-It-Up: Hand Gesture Based Creative Expression of 3D Shapes Using Intelligent Generalized Cylinders

Abstract: We present a novel interaction system, “Shape-It-Up”, for creative expression of 3D shapes through the naturalistic integration of human hand gestures with a modeling… Continue reading...
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Extended Multitouch: Recovering Touch Posture & Identity Using Depth Cameras on a Pen+Touch Tabletop Interface

Abstract: Multitouch surfaces are becoming prevalent, but most existing technologies are only capable of detecting the user’s actual points of contact on the surface and… Continue reading...
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ACTIVE-Hand: Automatic Configurable Tactile Interaction in Virtual Environment

Abstract: We present a novel, low-power and untethered pneumatic haptic device, namely the ACTIVE-Hand, for realistic and real-time 3D gaming experience. Currently, body-motion based 3D… Continue reading...
knowledge_representation

The evolution, challenges, and future of knowledge representation in product design systems

Abstract: Product design is a highly involved, often ill-defined, complex and iterative process, and the needs and specifications of the required artifact get more refined… Continue reading...
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A Proposed Platform to Simplify the Integration of Electronics into a Mechanical Engineering Design Course

Abstract: The interdisciplinary nature of engineering design and the pervasiveness of electronics in most products has made it necessary for practitioners of “design thinking” to… Continue reading...
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Enhancing Visual Thinking in a Toy Design Course Using Freehand Sketching

Abstract: Engineering graduates in advancing economies are not only expected to have engineering knowledge, but also use them in creative and innovative ways. The  importance… Continue reading...
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Handy-Potter: Rapid 3D Shape Exploration Through Natural Hand Motions

Abstract: We present the paradigm of natural and exploratory shape modeling by introducing novel 3D interactions for creating, modifying and manipulating 3D shapes using arms… Continue reading...
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Kaleidogami: Multi-Primitive Reconfigurable Artistic Structures

Abstract: In this paper we present our initial prototypical explorations as well as the associated transformative design concept called Kaleidogamiâ„¢.  This method is used for … Continue reading...
material

Designing-in Sustainability by Linking Engineering Curricula with K-12 Science Projects

Abstract:  In light of society’s increasing awareness with regards to the health of the environment, many engineering firms are hiring recent engineering graduates with… Continue reading...
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Discovering Material Recovery Scenarios for Industrial Machinery

Abstract: Decision-making methodologies for evaluating a product’s end-of-life options have become a significant area of research. Extensive work has been carried out in the area… Continue reading...
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Teaching Design for Environment through Critique within a Project Based Product Design Course

Abstract:  Future environmental regulations are creating new employment requirements within traditional engineering organizations. These organizations require recent graduates to have a strong handle on… Continue reading...
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Center-Shift: An Approach Towards Automatic Robust Mesh Segmentation (ARMS)

Abstract: In the area of 3D shape analysis, research in mesh segmentation has always been an important topic, as it is a fundamental low-level task… Continue reading...
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ME 444: Redesigning a Toy Design Course.

Abstract: Design is a complex process which requires several tools, knowledge and procedures in order to be successful. Although technology provide designers with new and… Continue reading...
rere

Towards locally and globally shape-aware reverse 3D modeling

Abstract: The process of re-creating CAD models from actual physical parts, formally known as digital shape reconstruction (DSR) is an integral part of product development,… Continue reading...
keke

Product and production systems life cycle and interaction

Abstract: This work package focuses on product life cycle and production system lifecycle. This work package describes these life cycles and then to consider the… Continue reading...
biomed

3DMolNavi: A web-based retrieval and navigation tool for flexible molecular shape comparison

Abstract: Many molecules of interest are flexible and undergo significant shape deformation as part of their function, but most existing methods of molecular shape comparison… Continue reading...
compInner

Computing the Inner Distances of Volumetric Models for Articulated Shape Description with a Visibility Graph

Abstract: A new visibility graph based algorithm is presented for computing the inner distances of a 3D shape represented by a volumetric model. The inner… Continue reading...
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Implementing Design Critique for Teaching Sustainable Concept Generation

Abstract:  Product design is one of the most important activities that can influence sustainability. Therefore, it is critical to educate students about these methodologies… Continue reading...
visualRepair

Virtual Repair: Geometric Reconstruction for Remanufacturing Gas Turbine Blades

Abstract: The usage of Direct Metal Deposition (DMD) technology for repairing defective voids in high-value metallic components is time consuming, since traditional geometric reconstruction methods… Continue reading...
towards

Towards Enabling Visual Design Exploration Involving Multiple Abstractions of Design Descriptions

Abstract: Designers use several visual tools for exploring and understanding design problems and solutions. House of Quality (HoQ), function-structure, Morphological matrices, concept selection tables, 2D… Continue reading...
heatwalk

HeatWalk: Robust Salient Segmentation of Non-rigid Shapes

Abstract: Segmenting three dimensional objects using properties of heat diffusion on meshes aim to produce salient results. The few existing algorithms based on heat diffusion… Continue reading...
slle

sLLE: Spherical Locally Linear Embedding with Applications to Tomography

Abstract: The tomographic reconstruction of a planar object from its projections taken at random unknown view angles is a problem that occurs often in medical… Continue reading...
tempDist

Temperature Distribution Descriptor for Robust 3D Shape Retrieval

Abstract: Recent developments in acquisition techniques are resulting in a very rapid growth of the number of available three dimensional (3D) models across areas as… Continue reading...
apix

APIX: Analysis from Pixellated Inputs in Early Design Using a Pen-based Interface

Abstract: Product development is seeing a paradigm shift in the form of a simulation-driven approach. Recently, companies and designers have started to realize that simulation… Continue reading...
gga

Global Geometric Affinity for Revealing High Fidelity Protein Interaction Network

Abstract: Protein-protein interaction (PPI) network analysis presents an essential role in understanding the functional relationship among proteins in a living biological system. Despite the success… Continue reading...
heatmap

Heat-Mapping: A Robust Approach Toward Perceptually Consistent Mesh Segmentation

Abstract: 3D mesh segmentation is a fundamental low-level task with applications in areas as diverse as computer vision, computer-aided design, bio-informatics, and 3D medical imaging.… Continue reading...
Capture

Evaluating Wikis as a Communicative Medium for Collaboration Within Colocated and Distributed Engineering Design Teams

Abstract: Wikis, freely editable collections of web pages, exhibit potential for a flexible documentation and communication tool for collaborative design tasks as well as support… Continue reading...
uncertanty

Addressing Uncertainties within Product Redesign for Sustainability: A Function Based Framework

Abstract: The Function Impact Method (FIM) is a semi-quantitative eco-design methodology that is targeted specifically towards the early stages of the design process. The FIM… Continue reading...