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Research Papers

Disassembly and Reassembly Sequence Planning Tradeoffs Under Uncertainty for Product Maintenance

[+] Author and Article Information
Sara Behdad

Industrial and Enterprise Systems Engineering Department, University of Illinois at Urbana-Champaign,Urbana, IL, 61801behdad1@illinois.edu

Deborah Thurston

Industrial and Enterprise Systems Engineering Department, University of Illinois at Urbana-Champaign,Urbana, IL, 61801thurston@illinois.edu

J. Mech. Des 134(4), 041011 (Apr 04, 2012) (9 pages) doi:10.1115/1.4006262 History: Received June 29, 2010; Revised February 10, 2012; Published March 28, 2012; Online April 04, 2012

The problem addressed in this paper is disassembly sequence planning for the purposes of maintenance or component upgrading, which is an integral part of the remanufacturing process. This involves disassembly, component repair or replacement, and reassembly. Each of these steps incurs cost as well as the probability of damage during the process. This paper presents a method for addressing these tradeoffs, as well as the uncertainty associated with them. A procedure for identifying the best sequence of disassembly operations for maintenance and/or component upgrade is presented. It considers both disassembly and reassembly costs and uncertainties. Graph-based integer linear programming combined with multi-attribute utility analysis is employed to identify the best set of tradeoffs among (a) disassembly time (and resulting cost) under uncertainty, (b) the probability of not incurring damage during disassembly, (c) reassembly time (and resulting cost), and (d) the probability of not incurring damage during reassembly. An example of a solar heating system is used to illustrate the method.

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Copyright © 2012 by American Society of Mechanical Engineers
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References

Figures

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Figure 1

Simple assembly (a) and its disassembly graph (b)

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Figure 2

Solar heating system structure [31]

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Figure 3

A portion of the plumbing system

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Figure 4

The network of possible disassembly alternatives

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Figure 5

The network of disassembly transitions and related utilities and optimal path

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Figure 6

The network of disassembly transitions and optimal path for the case of uncertain attributes

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Figure 7

The influence of decreasing the disassembly and reassembly time on overall utility of operation 5

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Figure 8

The influence of decreasing the probability of incurring damage during disassembly and reassembly on the overall utility of operation 5

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Figure 9

Hexagonal (a) and hexalobular (b) socket head cap screws

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