New decoupled wavelet bases for multiresolution structural analysis

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Abstract

One of the intractable problems in multiresolution structural analysis is the decoupling computation between scales, which can be realized by the operator-orthogonal wavelets based on the lifting scheme. The multiresolution finite element space is described and the formulation of multiresolution finite element models for structural problems is discussed. Various operator-orthogonal wavelets are constructed by the lifting scheme according to the operators of multiresolution finite element models. A dynamic multiresolution algorithm using operator-orthogonal wavelets is proposed to solve structural problems. Numerical examples demonstrate that the lifting scheme is a flexible and efficient tool to construct operator-orthogonal wavelets for multiresolution structural analysis with high convergence rate.

Original languageEnglish
Pages (from-to)175-190
Number of pages16
JournalStructural Engineering and Mechanics
Volume35
Issue number2
DOIs
StatePublished - 30 May 2010

Keywords

  • Lifting scheme
  • Multiresolution finite element
  • Operator-orthogonal wavelet

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