Statics module of an automobile chassis

*Stiffness matrix
*

- Compressed MatrixMarket format file: bcsstk32.mtx.gz (2198744 bytes)
- Compressed Harwell-Boeing format file: bcsstk32.psa.gz (747944 bytes)
- Compressed MatrixMarket format file: bcsstk32.mtx.gz (2198744 bytes)

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

Structure Plot |
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Matrix Statistics * * Generated by Yousef Saad's SPARSKIT Library * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * TIFFNESS MATRIX FOR AUTOMOBILE CHASSIS (MSC NASTRAN) - PATTERN ONLY * * Key = BCSSTK32 , Type = PSA * * No values provided - Information on pattern only * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Dimension N = 44609 * * Number of nonzero elements = 1029655 * * Average number of nonzero elements/Column = 23.0818 * * Standard deviation for above average = 10.4479 * * Nonzero elements in strict lower part = 985046 * * Nonzero elements in strict upper part = 985046 * * Nonzero elements in main diagonal = 44609 * * Weight of longest column = 215 * * Weight of shortest column = 3 * * Matching elements in symmetry = 0 * * Relative Symmetry Match (symmetry=1) = NaN * * Average distance of a(i,j) from diag. = 0.138E+04 * * Standard deviation for above average = 0.507E+04 * *-----------------------------------------------------------------* * Lower bandwidth (max: i-j, a(i,j) .ne. 0) = 0 * * Upper bandwidth (max: j-i, a(i,j) .ne. 0) = 43030 * * Maximum Bandwidth = 43031 * * Average Bandwidth = 0.231E+04 * * Number of nonzeros in skyline storage = 110572001 * * 90% of matrix is in the band of width = 2709 * * 80% of matrix is in the band of width = 605 * * The total number of nonvoid diagonals is = 12978 * * The 10 most important diagonals are (offsets) : * * 0 1 2 3 5 4 6 7 8 9 * * The accumulated percentages they represent are : * * 4.3 8.1 11.7 15.0 18.3 21.5 24.4 26.9 28.9 30.5 * *-----------------------------------------------------------------* * The matrix does not have a block structure * *-----------------------------------------------------------------*

Set BCSSTRUC5 | |
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Source: | Boeing Computer Services |

Discipline: | Structural engineering |

Accession: | Spring 1986 |

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Last change in this page: *Wed Sep 22 13:33:28 US/Eastern 2004*
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