DWT 245: Everstine's collection Carriage
[Download ]
[Visualizations ]
[Matrix Statistics ]
[Set Information ]

The finite element model that generated this matrix contains 245 nodes, 518 beam elements, 35 triangular plate elements, and 34 quadrilateral plate elements. The model is shown below. Plate and solid elements are outlined in black. Beam and rod elements are drawn as tubes. The carriage is based on similar structures used in the towing basins at NSWC, Carderock Division .

[detailed view ] [VRML 2.0 ] [VRML 1.0 ]

Help: My browser can't read the compressed data files. What now?

Click on image to get an enlarged version.
Click on label to get an explanation.

Click on label to get an explanation.

Size
Type
245 x 245, 1461 entries
pattern symmetric indefinite
Nonzeros
total diagonal below diagonal above diagonal A-A' 1461 245 608 608 0

Column Data
Row Data
Average nonzeros per column : 6 Standard deviation : 2.6

index nonzeros longest 29 13 shortest 31 2

Average nonzeros per row : 6 Standard deviation : 2.6

index nonzeros longest 29 13 shortest 31 2

Bandwidths
Profile Storage
lower 116 upper 116 average |i-j| 10 std.dev. 17

min max ave. std.dev. lower bandwidth 1 116 17 20 upper bandwidth 1 116 17 20

Symmetric skyline storage requirement: 4179

Heaviest diagonals
offset from main 0 -1 1 -2 2 -3 3 -22 -4 4
nonzeros 245 186 186 103 103 45 45 19 19 19
accumulated percent 16.77 29.50 42.23 49.28 56.33 59.41 62.49 63.79 65.09 66.39

Top 10 out of 113 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

The Matrix Market is a service of the
Mathematical and Computational Sciences Division /
Information Technology Laboratory /
National Institute of Standards and Technology .
[ Home ]
[ Search ]
[ Browse ]
[ Resources ]

Last change in this page: Wed Sep 22 13:33:34 US/Eastern 2004
[Comments:
matrixmarket @ nist.gov
]