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S3RMT3M3: Finite element analysis of cylindrical shells
Cylindrical shell, graded mesh with 1666 triangles, R/t=1000

from set CYLSHELL, from the Independent Sets and Generators
generated by MVMTLS

[Download] [Visualizations] [Matrix Statistics] [Generator Information]


The following estimates were supplied by the author.

Max eigenvalue = 9.5986080894852857E+03
Min eigenvalue = 3.9983547883056739E-07
Condition number = 2.400639E+10

This matrix supercedes C3RMT3M3.


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Visualizations

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Structure Plot City Plot
structure plot city plot


Matrix Statistics

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Size Type
5357 x 5357, 106526 entries real symmetric positive definite
Nonzeros
totaldiagonalbelow diagonalabove diagonalA-A'
207123 5357 100883 100883 0
Column Data Row Data
Average nonzeros per column : 39
Standard deviation : 7.1

indexnonzeros
longest997 48
shortest5282 7

Average nonzeros per row : 39
Standard deviation : 7.1

indexnonzeros
longest997 48
shortest5282 7

Bandwidths Profile Storage
lower5303 upper5303
average |i-j|2.5e+02 std.dev.7.5e+02
minmaxave.std.dev.
lower bandwidth0 5302 4.2e+02 9.7e+02
upper bandwidth0 5302 4.2e+02 9.7e+02

Symmetric skyline storage requirement:2258700

Heaviest diagonals
offset from main0 -1 1 -2 2 -3 3 -4 4 -5
nonzeros5357 5264 5264 5202 5202 5074 5074 5021 5021 4916
accumulated percent 2.59 5.13 7.6710.1812.6915.1417.5920.0222.4424.81

Top 10 out of 4737 nonvoid diagonals.
Conditioning
Frobenius norm1.6e+05 condition number (est.)2.60e+10
2-norm (est.)9.6e+03 diagonal dominanceno


Generator Information

Generator CYLSHELL
Source: Reijo Kouhia, Helsinki University of Technology, reijo.kouhia@hut.fi
Discipline:Structural mechanics
Accession:Summer 1997


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Last change in this page: Wed Sep 22 13:34:26 US/Eastern 2004 [Comments: ]