DWT 198: Everstine's collection Reinforced mast
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The finite element model that generated this matrix contains 198 nodes, 10 beam elements, and 135 quadrilateral plate elements. The model is shown below. Plate and solid elements are outlined in black. Beam and rod elements are drawn as tubes.

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Size
Type
198 x 198, 1392 entries
pattern symmetric indefinite
Nonzeros
total diagonal below diagonal above diagonal A-A' 1392 198 597 597 0

Column Data
Row Data
Average nonzeros per column : 7 Standard deviation : 2.1

index nonzeros longest 63 12 shortest 19 2

Average nonzeros per row : 7 Standard deviation : 2.1

index nonzeros longest 63 12 shortest 19 2

Bandwidths
Profile Storage
lower 37 upper 37 average |i-j| 21 std.dev. 16

min max ave. std.dev. lower bandwidth 1 37 29 12 upper bandwidth 1 37 29 12

Symmetric skyline storage requirement: 5817

Heaviest diagonals
offset from main 0 -33 33 -1 1 -34 -32 32 34 -3
nonzeros 198 165 165 156 156 130 130 130 130 6
accumulated percent 14.22 26.08 37.93 49.14 60.34 69.68 79.02 88.36 97.70 98.13

Top 10 out of 15 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
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