 BCSSTK32: BCS Structural Engineering Matrices (large eigenvalue problems)Statics module of an automobile chassis

from set BCSSTRUC5, from the Harwell-Boeing Collection

Stiffness matrix

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

Visualizations

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

Matrix Statistics

* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
*                           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 Information

Set BCSSTRUC5
Source: Boeing Computer Services
Discipline:Structural engineering
Accession:Spring 1986

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 ]