PUMA
Istituto di Scienza e Tecnologie dell'Informazione     
Carmignani C., Cella A., De P. Structural dynamics by finite elements: modal and fourier analysis. In: 2nd International Conference on Structural Mechanics in Reactor Technology (Berlin, 1973). Proceedings, pp. 1 - 14. 1973.
 
 
Abstract
(English)
The increasing use of finite element discretization in the prediction of the dynamic behaviour of complex structures is bounded by obvious restraints in the computational hardware and budget. Several approaches have been developed: the comparison is conditioned by the nature of the loads and by the structural type. In the present work two approaches are briefly described in their implementation: 1) modal superposition; 2)fourier transform. In the modal superposition, eigenvalues and eigenvectors are computed by direct or iterative methods: matrix deflation or variable metric minimization of the Rayleigh quotient.
Subject


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