Sommario
Questa memoria riassume alcuni risultati di un progetto di ricerca congiunto: obiettivo di tale progetto è la messa a punto di un metodo di analisi per strutture soggette a carichi dinamici che tenga conto dell'energia dissipata in campo anelastico. La ricerca è concentrata sull'impiego di tecniche di linearizzazione stocastica equivalente. Si dimostra in particolare un teorema che sancisce come condizione necessaria per l'applicabilità del procedimento una descrizione Gaussiana della risposta del sistema. Si analizza, infine, dal punto di vista teorico, la possibilità di impiego di tecniche di analisi module complessa che consentirebbero una definizione dell'eccitazione in termini del suo spettro di risposta.
Summary
This paper summarizes some results of a joint research project aiming at introducing a design procedure of dynamically loaded structures which allows for the energy dissipated in the inelastic range. The joint research is focused on stochastic equivalent linearization techniques. The need of some improvements in the solution scheme arises from the proof of a necessity theorem that limits within a Gaussian description of the response the applicability of the procedure presently adopted. The use of complex modal analysis and, hence, the possibility of making use of a response spectrum description of the loading is also investigated from a theoretical point of view.
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Faravelli, L., Casciati, F. & Singh, M.P. Stochastic equivalent linearization algorithms and their applicability to hysteretic systems. Meccanica 23, 107–112 (1988). https://doi.org/10.1007/BF01556709
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DOI: https://doi.org/10.1007/BF01556709