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DWT 2680: Everstine's collection
Destroyer

from set DWT, from the Harwell-Boeing Collection

[Download] [Visualizations] [Matrix Statistics] [Set Information]


The finite element model that generated this matrix contains 2690 nodes, 3172 rod elements, 134 triangular plate elements, and 2793 quadrilateral plate elements. The model is shown below. Plate and solid elements are outlined in black.

Image of model for dwt 2680
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Visualizations

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Structure Plot
structure plot


Matrix Statistics

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Size Type
2680 x 2680, 25026 entries pattern symmetric indefinite
Nonzeros
totaldiagonalbelow diagonalabove diagonalA-A'
25026 2680 11173 11173 0
Column Data Row Data
Average nonzeros per column : 9.3
Standard deviation : 1.9

indexnonzeros
longest1838 19
shortest2324 4

Average nonzeros per row : 9.3
Standard deviation : 1.9

indexnonzeros
longest1838 19
shortest2324 4

Bandwidths Profile Storage
lower2500 upper2500
average |i-j|1.5e+02 std.dev.4.3e+02
minmaxave.std.dev.
lower bandwidth1 2500 2.2e+02 5e+02
upper bandwidth1 2500 2.2e+02 5e+02

Symmetric skyline storage requirement:590543

Heaviest diagonals
offset from main0 -1 1 -7 7 -6 6 -8 8 -5
nonzeros2680 2183 2183 1326 1326 1180 1180 885 885 798
accumulated percent10.7119.4328.1533.4538.7543.4748.1851.7255.2558.44

Top 10 out of 2237 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: ]