Towards Rapid Redesign: Pattern-based Redesign Planning for Large-Scale and Complex Redesign Problems

[+] Author and Article Information
Simon Li

Department of Mechanical Engineering, University of New Brunswick, Fredericton, New Brunswick, E3B 5A3, Canadalisimon@unb.ca

Li Chen1

Systems Department, United Technologies Research Center, East Hartford, CT 06108li.chen@utoronto.ca


Corresponding author. 411 Silver Lane, MS 129-85, East Hartford, CT 06108.

J. Mech. Des 129(2), 227-233 (Nov 23, 2005) (7 pages) doi:10.1115/1.2218885 History: Received December 08, 2004; Revised November 23, 2005

We have developed a decomposition-based rapid redesign methodology for large and complex computational redesign problems. While the overall methodology consists of two general steps: diagnosis and repair, in this paper we focus on the repair step in which decomposition patterns are utilized for redesign planning. Resulting from design diagnosis, a typical decomposition pattern solution to a given redesign problem indicates the portions of the design model necessary for recomputation as well as the interaction part within the model accountable for design change propagation. Following this, in this paper we suggest repair actions with an approach derived from an input pattern solution, to generate a redesign road map allowing for taking a shortcut in the redesign solution process. To do so, a two-stage redesign planning approach from recomputation strategy selection to redesign road map generation is proposed. An example problem concerning the redesign of a relief valve is used for illustration and validation.

Copyright © 2007 by American Society of Mechanical Engineers
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Figure 1

Decomposition of a DDM

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Figure 2

Workflow of the decomposition-based rapid redesign methodology

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Figure 3

Flowchart of the general selection algorithm

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Figure 4

Input/output of a typical redesign subproblem for recomputing

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Figure 5

Original DDM for the existing relief valve

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Figure 6

Optimal pattern solution for the Redesign Planning Analysis

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Figure 7

Initial state of the redesign road map for the relief valve example



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