S. Idelsohn, M. Geradin
The type of convergence to the eigenspectrum of a structure calculated from a finite element analysis is examined in light of the variational properties of the Rayleigh quotient and of Courant's maximum-minimum principle. The influence of the self-stressing modes on the solution is firt demonstrated theoretically and then shown practically on the results obtained via a family of equilibrium elements in which the number of self-stressing modes relative to the number of vibration modes may be varied as a parameter.
Published on 01/01/1982
DOI: 10.1016/S0022-460X(82)80082-5Licence: CC BY-NC-SA license
Times cited: 1Views 9Recommendations 0
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