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DWT 234: Everstine's collection
Tower with platform

from set DWT, from the Harwell-Boeing Collection

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


The finite element model that generated this matrix contains 234 nodes and 300 beam elements. The model is shown below. Beam and rod elements are drawn as tubes.

Image of model for dwt 234
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Visualizations

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Structure Plot
structure plot


Matrix Statistics

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Size Type
234 x 234, 834 entries pattern symmetric indefinite
Nonzeros
totaldiagonalbelow diagonalabove diagonalA-A'
834 234 300 300 0
Column Data Row Data
Average nonzeros per column : 3.6
Standard deviation : 1.5

indexnonzeros
longest69 10
shortest1 2

Average nonzeros per row : 3.6
Standard deviation : 1.5

indexnonzeros
longest69 10
shortest1 2

Bandwidths Profile Storage
lower49 upper49
average |i-j|5.2 std.dev.8.3
minmaxave.std.dev.
lower bandwidth1 49 8.5 9.5
upper bandwidth1 49 8.5 9.5

Symmetric skyline storage requirement:1999

Heaviest diagonals
offset from main0 -1 1 -4 4 -6 6 -9 9 -11
nonzeros234 126 126 33 33 29 29 17 17 13
accumulated percent28.0643.1758.2762.2366.1969.6673.1475.1877.2278.78

Top 10 out of 79 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 13:33:34 US/Eastern 2004 [Comments: ]