DREA Acoustic Calibration Barge Natural Frequency Measurements and Predictions

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Authors
  1. Gilroy, L.E.
  2. MacFarlane, T.R.
  3. Ritchie, A.
Corporate Authors
Defence Research Establishment Atlantic, Dartmouth NS (CAN)
Abstract
C++ classes for representing sparse matrices are described. The matrices use one of four profile storage schemes: compressed row storage, skyline, storage, sparse skyline storage (similar to skyline storage but with compressed arrays above and below the diagonal), and S2dBlock storage (a special purpose storage scheme for matrices arising from partial differential equations on two-dimensional structured blocks). C++ classes are also provided for iterative solution methods for linear systems of equations. The Conjugate Gradient, Conjugate Gradient Squared, Quasi-Minimum Residual, and Generalized Minimum Residual (GMRES) methods have been implemented. Element re-ordering and preconditioning using the diagonal (Jacobi) or incomplete LU factorization of order zero (ILU0) methods are also provided.
Keywords
Calibration;Natural frequency;Ship structures;Radiated noise;Structural resonance
Report Number
DREA-TM-1999-143 — Technical Memorandum
Date of publication
01 May 1999
Number of Pages
21
DSTKIM No
CA000505
CANDIS No
512598
Format(s):
Hardcopy;Document Image stored on Optical Disk

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