Optimization of friction stir welding using space mapping and manifold mapping-an initial study of thermal aspects

Anders Astrup Larsen, Martin P. Bendsøe, Jesper Henri Hattel, Henrik Nikolaj Blicher Schmidt

Research output: Contribution to journalConference articleResearchpeer-review

Abstract

The aim of this paper is to optimize a thermal model of a friction stir welding process by finding optimal welding parameters. The optimization is performed using space mapping and manifold mapping techniques in which a coarse model is used along with the fine model to be optimized. Different coarse models are applied and the results and computation time are compared to gradient based optimization using the full model. It is found that the use of space and manifold mapping reduces the computational cost significantly due to the fact that fewer function evaluations and no fine model gradient information is required.
Original languageEnglish
JournalStructural and Multidisciplinary Optimization
Volume38
Issue number3
Pages (from-to)289-299
ISSN1615-147X
DOIs
Publication statusPublished - 2009

Keywords

  • Friction stir welding
  • Space mapping
  • Manifold mapping

Fingerprint Dive into the research topics of 'Optimization of friction stir welding using space mapping and manifold mapping-an initial study of thermal aspects'. Together they form a unique fingerprint.

Cite this