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TECHNICAL NOTES

Design Modification in a Collaborative Assembly Design Environment

[+] Author and Article Information
C. Lu, Y. S. Wong, Z. M. Qiu

Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576

J. Y. Fuh1

Department of Mechanical Engineering, National University of Singapore, 9 Engineering Drive 1, Singapore 117576mpefuhyh@nus.edu.sg

W. D. Li, Y. Q. Lu

 Singapore Institute of Manufacturing Technology, 71 Nanyang Drive, Singapore, 638075

1

To whom correspondence should be addressed.

J. Comput. Inf. Sci. Eng 6(2), 200-208 (Apr 27, 2005) (9 pages) doi:10.1115/1.2190234 History: Received March 29, 2004; Revised April 27, 2005

This paper discusses the design modification issue in a collaborative assembly (co-assembly) design environment, which enables multiple geographically dispersed designers to design and assemble parts collaboratively and synchronously through the Internet. An assembly representation model, viz. feature-based hierarchical co-assembly representation, is proposed to resolve the co-assembly design issues. In order to realize the design modification, a design modification propagation control mechanism is proposed. A system framework that is suitable for realizing the design modification is also proposed and developed. Finally, the detailed design modification propagation control mechanism is demonstrated through a case study.

Copyright © 2006 by American Society of Mechanical Engineers
Topics: Manufacturing , Design
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Figures

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Figure 1

Feature-based hierarchical co-assembly representation

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Figure 2

Assembly consisting of three parts

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Figure 3

The design modification results (1)

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Figure 4

The design modification results (2)

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Figure 5

XML file defining the assembly information of each feature in Part 2

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Figure 6

Parsing result of the XML file (in Fig. 5) when ⟨featureID⟩ “201” and “202” are modified

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Figure 7

Flowchart of whole XML file parsing process

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Figure 8

The proposed system framework

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Figure 9

Simplified gearbox assembly displayed in design client 1

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Figure 10

Some features of each part

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Figure 11

Part 1 in design client 1

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Figure 12

Java Applet browsed in client 1 for submitting design modification information

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Figure 15

Part 2 in design client 2

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Figure 16

Modified Part 2 in design client 2

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Figure 17

The design modification propagation triggered by modification of F11 and F12

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