Accession Number : AD0705579

Title :   BANDWIDTH MINIMIZATION OF STIFFNESS MATRICES.

Descriptive Note : Technical rept.,

Corporate Author : AEROSPACE CORP SAN BERNARDINO CALIF SAN BERNARDINO OPERATIONS

Personal Author(s) : Crose,James G.

Report Date : 12 MAY 1970

Pagination or Media Count : 14

Abstract : A finite element analysis method can be developed for asymmetrically loaded axisymmetric solids by expanding the variables in the circumferential direction with a Fourier series approximation. It is shown that the resulting stiffness matrix can be banded, resulting in considerable savings in computer storage and time. Also, it is shown that, in order to achieve the minimum bandwidth, different approaches are required depending on whether the harmonics couple or uncouple. The two stiffness matrix formulations are described. (Author)

Descriptors :   (*SHELLS(STRUCTURAL FORMS), LOADS(FORCES)), HARMONIC ANALYSIS, FOURIER ANALYSIS, SERIES(MATHEMATICS), APPROXIMATION(MATHEMATICS), SIMULTANEOUS EQUATIONS, STRUCTURAL PROPERTIES

Subject Categories : Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE