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Engineering with Computers

, Volume 21, Issue 4, pp 304–311 | Cite as

Automated symmetry exploitation in engineering analysis

  • Krishnan SureshEmail author
  • Ameya Sirpotdar
Original Article

Abstract

In engineering analysis, geometric symmetry, when exploited, has two potential benefits: (1) it can significantly reduce the computational time, and (2) it can simultaneously improve the accuracy of the computed solution. Consequently, most CAD/CAE systems have standard ‘provisions’ for exploiting symmetry. These provisions are however inadequate in that they needlessly burden the design engineer with time consuming and error-prone tasks of: (1) symmetry detection, (2) symmetry cell construction, (3) boundary mapping and (4) symmetry reduction. In this paper, we propose a framework for automated symmetry exploitation in engineering analysis. By formalizing all four tasks listed above, and by unifying them under a single framework, we show how automated symmetry exploitation can be achieved. We discuss implementations of the proposed work within two commercially available CAD/CAE systems, namely FEMLABTM and SolidWorksTM.

Keywords

Symmetry Engineering analysis Eigen-value Group theory CAD/CAE 

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Copyright information

© Springer-Verlag London Limited 2006

Authors and Affiliations

  1. 1.347, Mechanical Engineering Building, 1513 University AvenueUniversity of WisconsinMadisonUSA

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