The Matrix Market

Home Search Browse Resources

BCSSTRUC5: BCS Structural Engineering Matrices (large eigenvalue problems)

from the Harwell-Boeing Collection

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

These matrices were extracted from the MCS/NASTRAN or Boeing ATLAS structural engineering programs by Randy Cigel, Roger Grimes, John Lewis, and Ed Meyer. These are five very large problems encountered in detailed modeling of structures. Because of their size only the matrix patterns have been included in the collection. Given just cause and a willingness to deal with matrices with over 300,000 entries in the lower triangle the numerical values can be obtained from either Roger Grimes or John Lewis ( The first problem is from a generalized symmetric eigenvalue problem; the pattern of the associated differential stiffness matrix is a subset of the pattern of the stiffness matrix.

Matrices in this set:

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 13:33:28 US/Eastern 2004 [Comments: ]