Magneto-mechanical simulations by a coupled fast multipole method-finite element method and multigrid solvers

  • Authors:

  • A. Frangi;P. Faure-Ragani;L. Ghezzi

  • Affiliations:

  • Department of Structural Engineering, Politecnico of Milan, Milano, P.za L. da Vinci 32, 21033 Milano, Italy;ABB AT Italy Simulation Group, Viale dell 'Industria 18, 20010 Vittuone, Italy;ABB AT Italy Simulation Group, Viale dell 'Industria 18, 20010 Vittuone, Italy

  • Venue:
  • Computers and Structures
  • Year:
  • 2005

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Abstract

The present paper addresses the analysis of large-scale three dimensional magneto-mechanical problems by means of a coupled boundary element-finite element procedure. Iterative techniques are used for the solution of the associated linear systems; their intrinsic ill-conditioning is cured by means of ad-hoc multigrid solvers and fast multipole techniques as accelerators. Some numerical examples are presented in order to test the performance of the proposed approach.