COMPUTATIONAL METHOD FOR SHAPE OPTIMIZATION.

J. W. Hou, Jahau Lewis Chen, J. S. Sheen

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)

Abstract

In the direct method of shape optimum design, mesh regridding is a necessary step in order to avoid the distortion of finite element grids. The effect of internal-nodal movements on the shape design sensitivity, associated with the regridding process, has been carefully examined in this paper. It shows that the ignorance of internal-nodal movements may introduce numerical error into shape design sensitivity analysis. To take the internal-nodal movement into account, a new approach which constructs the velocity field over the element domain is presented. Although it takes more computational time, the new approach does improve the accuracy of shape design sensitivity.

Original languageEnglish
Pages (from-to)629-638
Number of pages10
JournalCollection of Technical Papers - AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference
Issue numberpt 1
Publication statusPublished - 1985 Jan 1

All Science Journal Classification (ASJC) codes

  • Architecture
  • Materials Science(all)
  • Aerospace Engineering
  • Mechanics of Materials
  • Mechanical Engineering

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