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Research Papers

Development of a DSM-Based Methodology in an Academic Setting

[+] Author and Article Information
George Platanitis

Faculty of Engineering and Applied Science,  University of Ontario Institute of Technology (UOIT), Oshawa, ON L1H 7K4, Canadageorge.platanitis@uoit.ca

Remon Pop-Iliev1

Faculty of Engineering and Applied Science,  University of Ontario Institute of Technology (UOIT), Oshawa, ON L1H 7K4, Canadaremon.pop-iliev@uoit.ca

Ahmad Barari

Faculty of Engineering and Applied Science,  University of Ontario Institute of Technology (UOIT), Oshawa, ON L1H 7K4, Canadaahmad.barari@uoit.ca

1

Corresponding author.

J. Mech. Des 134(2), 021007 (Feb 03, 2012) (11 pages) doi:10.1115/1.4005591 History: Received August 12, 2010; Revised November 19, 2011; Published February 03, 2012

This paper proposes the use of a design structure matrix/work transformation matrix (DSM/WTM)-based methodology in academic settings to serve engineering educators as a facilitating tool for predetermining the difficulty and feasibility of design engineering projects they assign, given both the time constraints of the academic term and the expected skill level of the respective learners. By using a third-year engineering design project as a case study, engineering students actively participated in this comprehensive use of DSM methodologies. The engineering design process has been thoroughly analyzed to determine convergence characteristics based on the eigenvalues of the system followed by a sensitivity analysis on the originally determined DSM based on data provided by students in terms of task durations and number of iterations for each task. Finally, an investigation of the design process convergence due to unexpected events or random disturbances has been conducted. The obtained predictive model of the design process was compared to the actual dynamics of the project as experienced by the students and the effect of random disturbances at any point in the design process has thereby been evaluated.

FIGURES IN THIS ARTICLE
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Copyright © 2012 by American Society of Mechanical Engineers
Topics: Design , Project tasks , Tires
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Figures

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Figure 1

Conveyor belt layout and scaling pertaining to tire manipulator design project

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Figure 2

DSM matrix representation for tasks to be performed in tire manipulator design

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Figure 3

WTM matrix representation for tasks to be performed in tire manipulator design

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Figure 4

Dynamic response of tire and wheel manipulator design process, showing remaining work for each task at each iteration stage

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Figure 5

Original and alternative design structure matrices/work transformation matrices

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Figure 6

Dynamic response for the design arm task showing remaining work at each iteration stage for various WTM models

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Figure 7

Dynamic response for the finite element analysis task showing remaining work at each iteration stage for various WTM models

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Figure 8

Dynamic response for the design process of the tire and wheel manipulator with disturbance of 100% introduced to tasks C–F at fifth iteration

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Figure 9

Dynamic response for the design process of the tire and wheel manipulator with disturbance of 100% introduced to tasks C–F at tenth iteration

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