Vibrations of continuos structures depend on boundary conditions and physical parameters: uncertainties in any of them affect their dynamic behaviour, and, especially at high frequencies, the dynamic response of structures is more significantly described by a statistical model. In this paper a sensitivity analysis to variations of boundary conditions and physical parameters is presented that provides a simple criterion for establishing the need of a statistical approach. Numerical examples performed on one and two-dimensional systems are presented to confirm some analytical developments.
Sensitivity analysis for statistical characterization of uncertain systems / Carcaterra, Antonio; Sestieri, Aldo. - STAMPA. - 3089:(1997), pp. 771-777. (Intervento presentato al convegno 15th International Modal Analysis Conference - Current Horizon for Structural Damage Detection (IMAC) tenutosi a ORLANDO, FL nel FEB 03-06, 1997).
Sensitivity analysis for statistical characterization of uncertain systems
CARCATERRA, Antonio;SESTIERI, Aldo
1997
Abstract
Vibrations of continuos structures depend on boundary conditions and physical parameters: uncertainties in any of them affect their dynamic behaviour, and, especially at high frequencies, the dynamic response of structures is more significantly described by a statistical model. In this paper a sensitivity analysis to variations of boundary conditions and physical parameters is presented that provides a simple criterion for establishing the need of a statistical approach. Numerical examples performed on one and two-dimensional systems are presented to confirm some analytical developments.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
