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TECHNICAL PAPERS

An Integrated Systematic Design Recovery Framework

[+] Author and Article Information
R. J. Urbanic

 University of Windsor, 401 Sunset Avenue, Windsor, Ontario, Canada N9B 3P4urbanic@uwindsor.ca

W. H. ElMaraghy

 University of Windsor, 401 Sunset Avenue, Windsor, Ontario, Canada N9B 3P4wem@uwindsor.ca

H. A. ElMaraghy1

 University of Windsor, 401 Sunset Avenue, Windsor, Ontario, Canada N9B 3P4hae@uwindsor.ca

1

Corresponding author.

J. Comput. Inf. Sci. Eng 6(4), 318-330 (May 04, 2006) (13 pages) doi:10.1115/1.2353854 History: Received August 18, 2005; Revised May 04, 2006

Reverse engineering aims at reproducing an existing object by analyzing its dimensions, features, form, and properties. Reversing geometry has traditionally been emphasized in this process. The collected data and information must be transformed into pertinent product knowledge at both the detail and embodiment levels. A thorough analysis of the environment must be conducted in order determine the functional requirements, infer the original needs, and deduce the form and fit features. An integrated approach that blends techniques such as IDEF modeling, scanning, and physical measurements, least-squares methods, and statistics used for process capability analysis in an innovative manner can lead to a more complete model, as no one set of tools can provide a complete, comprehensive engineering representation. An integrated and systematic framework for design recovery of mechanical parts is proposed. Forward engineering techniques should be applied appropriately throughout and integrated with the reverse engineering process to heal the knowledge gaps. Examples are presented that illustrate the application of the proposed integrated approach and highlight its merits.

Copyright © 2006 by American Society of Mechanical Engineers
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References

Figures

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Figure 16

Base curve elements for a slice from the point cloud data and the final CAD models

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Figure 15

Multi-step modeling process

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Figure 14

Connecting rod features

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Figure 13

Functioning connecting rod

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Figure 12

Design framework

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Figure 11

Rapid prototyped regulator gear

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Figure 10

Final model for regulating gear

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Figure 9

Scanned data and labels

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Figure 8

Power window assembly and regulator gear

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Figure 7

Draft for a die cast connecting rod

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Figure 6

Reverse geometric modeling

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Figure 5

Data collection and analysis

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Figure 4

(a) A0 node—reverse engineering. (b) A2 node—gathering product information.

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Figure 3

Connecting rod and piston

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Figure 2

Reverse engineering

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Figure 1

A general IDEF0 activity block

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