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CAN 1072: Structures problems in aircraft design

from set CANNES, from the Harwell-Boeing Collection

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Visualizations

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Structure Plot
structure plot


Matrix Statistics

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Size Type
1072 x 1072, 6758 entries pattern symmetric indefinite
Nonzeros
totaldiagonalbelow diagonalabove diagonalA-A'
12444 1072 5686 5686 0
Column Data Row Data
Average nonzeros per column : 12
Standard deviation : 5.7

indexnonzeros
longest428 35
shortest46 6

Average nonzeros per row : 12
Standard deviation : 5.7

indexnonzeros
longest428 35
shortest46 6

Bandwidths Profile Storage
lower1049 upper1049
average |i-j|1.2e+02 std.dev.1.8e+02
minmaxave.std.dev.
lower bandwidth1 1049 2.6e+02 2.5e+02
upper bandwidth1 1049 2.6e+02 2.5e+02

Symmetric skyline storage requirement:278320

Heaviest diagonals
offset from main0 -1 1 -2 2 -3 3 -4 4 -5
nonzeros1072 594 594 342 342 285 285 163 163 48
accumulated percent 8.6113.3918.1620.9123.6625.9528.2429.5530.8631.24

Top 10 out of 1253 nonvoid diagonals.
Conditioning
Pattern matrix. No conditioning information.


Set Information

Set CANNES
Source: Lucien Marro, Programmation Scientifique, Aerospatiale Cannes, France.
Discipline:Finite-element structures problems in aircraft design.
Accession:June 3, 1981


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Last change in this page: Wed Sep 22 13:33:29 US/Eastern 2004 [Comments: ]