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An Approach to Automated Conversion From Design Feature Model to Analysis Feature Model

[+] Author Affiliations
Weijuan Cao, Xiaoshen Chen, Shuming Gao

Zhejiang University, Hangzhou, Zhejiang, China

Paper No. DETC2011-47555, pp. 655-665; 11 pages
doi:10.1115/DETC2011-47555
From:
  • ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 5: 37th Design Automation Conference, Parts A and B
  • Washington, DC, USA, August 28–31, 2011
  • Conference Sponsors: Design Engineering Division and Computers and Information in Engineering Division
  • ISBN: 978-0-7918-5482-2
  • Copyright © 2011 by ASME

abstract

An approach to automatically converting a design feature model to an analysis feature model for downstream finite element analysis is proposed. The analysis feature model is a mixed-dimensional model with shell features representing thin regions and solid features representing thick regions. In the approach, the design feature model is first decomposed into a set of remnants of additive features, each of which represents part of an additive feature’s volume that remain in the final volume of the design model. The remnant of each additive feature is then decomposed into swept bodies and non-swept bodies. After that, the thin regions of each swept body are effectively recognized based on its sketch information. These detected thin regions can be wrongly recognized, which, together with potentially missing ones are thus detected and corrected by a synthesization process. Finally, the analysis features and their relative interfaces are generated, which ultimately gives the corresponding analysis feature model to the input design feature model. Experimental results are also shown to demonstrate the proposed method’s effectiveness.

Copyright © 2011 by ASME
Topics: Design

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