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Research Papers

Similarity Assessment of Mechanical Parts Based on Integrated Product Information Model

[+] Author and Article Information
Ruzhen Zhang, Xionghui Zhou

National Die and Mold CAD Engineering Research Center, Shanghai Jiaotong University, 1954 Hua Shan Road, Shanghai 200030, Chinazhangruzhen@sjtu.edu.cn

J. Comput. Inf. Sci. Eng 11(1), 011001 (Mar 30, 2011) (12 pages) doi:10.1115/1.3563055 History: Received April 05, 2010; Revised September 26, 2010; Published March 30, 2011; Online March 30, 2011

To improve the quality of design, reduce the cost of production, and shorten the cycle of product development, an effective system to manage and reuse existing design resources is established. A novel two-step algorithm based on integrated product information model is put forward to analyze the reusability of design resources. First, the global shape ignoring the interior details is compared with check if they belong to the same category. Then, the detailed feature shape is compared with catch, the exact reusable design resources. Finally, a case study proves that the proposed method has higher accuracy.

Copyright © 2011 by American Society of Mechanical Engineers
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Figures

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Figure 13

Global shape and AAD graph of the example model for each group in database

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Figure 14

The cross-validation accuracy contour

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Figure 15

The evolution procedure of GA

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Figure 16

Retrieval results of five experiments

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Figure 17

Precision-recall curves of some experiments

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Figure 2

Integrated product information model

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Figure 3

Model enhancement architecture

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Figure 1

The framework of the proposed methodology

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Figure 4

IPIM of a bracket with sample data

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Figure 5

AAD of example models

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Figure 6

(a) Two models belonging to different categories have similar AAD graphs and (b) AAD graphs of the global shape can be distinguished easily

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Figure 7

The definition of feature group

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Figure 8

Orientation of some features

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Figure 9

The principal direction of global shape

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Figure 10

Different position distributions of feature instances

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Figure 11

The right map and the wrong map

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Figure 12

The flowchart of feature map

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