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[01254] Fast SVD-Preconditioned Eigensolver for 3D Phononic Crystals

  • Session Time & Room : 3E (Aug.23, 17:40-19:20) @E603
  • Type : Contributed Talk
  • Abstract : In this talk, a Fast Linear Elastic Eigenvalue Problem Solver (FLEEPS) is developed to calculate band structures of 3D isotropic phononic crystals. FLEEPS is an iterative eigensolver of quasi-linear complexity to compute the smallest few eigenvalues of the linear elastic eigenvalue problem. The weighted SVD-preconditioned CG method in FLEEPS convergences faster than the AMG-preconditioned CG method by more than 60 times. Band structure calculations of several 3D isotropic phononic crystals demonstrate the strengths of FLEEPS.
  • Classification : 65F15, 74E10, 74E15
  • Format : Talk at Waseda University
  • Author(s) :
    • Tiexiang Li (Southeast University)
    • Heng Tian (Sichuan University of Science and Engineering)
    • Xing-Long Lyu (Southeast University)
    • Wen-Wei Lin (National Yang Ming Chiao Tung University)