BCSSTRUC3: BCS Structural Engineering Matrices (eigenvalue problems)
| BCSSTRUC3 |
| Source: |
John Lewis, Boeing Computer Services, Seattle, WA |
| Discipline: | Dynamic analyses in structural
engineering |
| Accession: | Summer 1984 to spring 1985 |
These generalized symmetric eigenproblems were extracted from various structural
engineering packages such as GT-STRUDL, MCS/NASTRAN, and BCS ATLAS. They
represent interesting problems encountered after the first set of structural
engineering matrices were collected. Please refer to BCS Structural Engineering
Matrices for more detail on these problems.
Problems number 19, 20, and 22 have very poorly conditioned stiffness matrices.
Problem 21 is a standard textbook problem with multiple eigenvalues.
Matrices in this set
-
BCSSTK19 : part of a suspension
bridge, 817 x 817, 3835 nonzeros
-
BCSSTM19 : part of a suspension
bridge, 817 x 817, 817 nonzeros
-
BCSSTK20 : frame within a suspension
bridge, 485 x 485, 1810 nonzeros
-
BCSSTM20 : frame within a
suspension bridge, 485 x 485, 485 nonzeros
-
BCSSTK21 : clamped square plate,
3600 x 3600, 15100 nonzeros
-
BCSSTM21 : clamped square plate,
3600 x 3600, 3600 nonzeros
-
BCSSTK22 : textile loom frame,
138 x 138, 417 nonzeros
-
BCSSTM22 : textile loom frame,
138 x 138, 138 nonzeros
-
BCSSTK23 : portion of a 3d
globally trianglular bldg, 3134 x 3134, 24156 nonzeros
-
BCSSTM23 : portion of a 3d globall
trianglular bldg, 3134 x 3134, 3134 nonzeros
-
BCSSTK24 : winter sports arena,
3562 x 3562, 81736 nonzeros
-
BCSSTM24 : winter sports arena,
3562 x 3562, 3562 nonzeros
-
BCSSTK25 : 76 story skyscraper,
15439 x 15439, 133840 nonzeros
-
BCSSTM25 : 76 story skyscraper,
3562 x 3562, 3562 nonzeros
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