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Suppressing Features to Generate Simplified Models for Finite Element Analysis

[+] Author Affiliations
Brian Russ, Madan M. Dabbeeru, Satyandra K. Gupta

University of Maryland at College Park, College Park, MD

Andrew S. Chorney, Daniel Skelley

Patuxent River Naval Air Warfare Center, Patuxent River, MD

Paper No. DETC2011-48480, pp. 115-125; 11 pages
doi:10.1115/DETC2011-48480
From:
  • ASME 2011 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 2: 31st Computers and Information in Engineering 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: 978-0-7918-5479-2
  • Copyright © 2011 by ASME

abstract

Analyzing complex 3D models using finite element analysis software requires suppressing parts that are not likely to influence the analysis results, but may significantly improve the computational performance both in terms of mesh size and mesh quality. The feature suppression step often depends on the context and application. Currently, most analysts perform this step manually. This step can take a long time to perform on a complex model and can be tedious in nature. In this paper, we present a rule-based approach to feature suppression. We have developed a decision-tree based representation for capturing feature suppression rules. We have also developed utilities in Pro/Engineer CAD system to identify features that meet these rules and suppress them. We present several examples to illustrate the value of the proposed approach.

Copyright © 2011 by ASME

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