A limit of Statistical Energy Analysis (SEA) is that of providing only the mean values of the mechanical energy of a vibrating system. Uncertainties of the SEA parameters (coupling loss factors, internal loss factors, and injected powers) depend on uncertainties in the physical properties of the considered mechanical system (Young modulus, material density, geometry). In this paper, uncertainty solution in SEA is investigated using a Design of Experiment (DoE) approach. Numerical results are derived using a benchmark structure made by interconnected aluminum plates. The eectiveness of the proposed approach is evaluated by comparing it with a Monte Carlo simulation.
Uncertainty propagation in statistical energy analysis using design of experiment / Culla, Antonio; W., D'Ambrogio; Fregolent, Annalisa. - STAMPA. - 1:(2009), pp. 157-164. (Intervento presentato al convegno 2nd International Conference on Uncertainty in Structural Dynamics tenutosi a SHEFFIELD (UK) nel 15 - 17 Giugno 2009).
Uncertainty propagation in statistical energy analysis using design of experiment
CULLA, Antonio;FREGOLENT, Annalisa
2009
Abstract
A limit of Statistical Energy Analysis (SEA) is that of providing only the mean values of the mechanical energy of a vibrating system. Uncertainties of the SEA parameters (coupling loss factors, internal loss factors, and injected powers) depend on uncertainties in the physical properties of the considered mechanical system (Young modulus, material density, geometry). In this paper, uncertainty solution in SEA is investigated using a Design of Experiment (DoE) approach. Numerical results are derived using a benchmark structure made by interconnected aluminum plates. The eectiveness of the proposed approach is evaluated by comparing it with a Monte Carlo simulation.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
