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DWT 758: Everstine's collection

from set DWT, from the Harwell-Boeing Collection

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The finite element model that generated this matrix contains 758 nodes, 68 triangular axisymmetric elements, and 597 quadrilateral axisymmetric elements. The model is shown below. Plate and solid elements are outlined in black.

Image of model for dwt 758
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Visualizations

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Structure Plot
structure plot


Matrix Statistics

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Size Type
758 x 758, 5994 entries pattern symmetric indefinite
Nonzeros
totaldiagonalbelow diagonalabove diagonalA-A'
5994 758 2618 2618 0
Column Data Row Data
Average nonzeros per column : 7.9
Standard deviation : 1.5

indexnonzeros
longest359 11
shortest1 4

Average nonzeros per row : 7.9
Standard deviation : 1.5

indexnonzeros
longest359 11
shortest1 4

Bandwidths Profile Storage
lower201 upper201
average |i-j|21 std.dev.31
minmaxave.std.dev.
lower bandwidth1 201 31 36
upper bandwidth1 201 31 36

Symmetric skyline storage requirement:23871

Heaviest diagonals
offset from main0 -1 1 -55 -54 54 55 -5 5 -6
nonzeros758 676 676 242 242 242 242 209 209 191
accumulated percent12.6523.9235.2039.2443.2847.3151.3554.8458.3261.51

Top 10 out of 167 nonvoid diagonals.
Conditioning
Pattern matrix. No conditioning information.


Set Information

Set DWT
Source: Gordon Everstine, David W. Taylor Naval Ship Research and Development Center, Bethesda, MD, USA.
Discipline:Structural engineering
Accession:Summer 1980


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Last change in this page: Wed Sep 22 13:33:35 US/Eastern 2004 [Comments: ]