An updating procedure based on measured Frequency Response Function (FRF) data is proposed to correct the numerical parameters of a continuous B spline dynamical model of a shell structural component. Since standard FRF based parametric updating techniques may fail in practical applications because of resonance frequency shift between measured and analytical simulations, a Frequency Domain Assurance Criterion (FDAC) correlation technique was considered and included in the formulation of the objective function. Updating parameters are normalized and constrained in a compact domain by means of a proper variable transformation choice. Some real examples, concerning the model updating of a real railway bridge, is illustrated and discussed.

A. Carminelli, G. Catania (2011). B-spline Shell Finite Element Updating by Means of Vibration Measurements. RIJEKA : Intech.

B-spline Shell Finite Element Updating by Means of Vibration Measurements

CARMINELLI, ANTONIO;CATANIA, GIUSEPPE
2011

Abstract

An updating procedure based on measured Frequency Response Function (FRF) data is proposed to correct the numerical parameters of a continuous B spline dynamical model of a shell structural component. Since standard FRF based parametric updating techniques may fail in practical applications because of resonance frequency shift between measured and analytical simulations, a Frequency Domain Assurance Criterion (FDAC) correlation technique was considered and included in the formulation of the objective function. Updating parameters are normalized and constrained in a compact domain by means of a proper variable transformation choice. Some real examples, concerning the model updating of a real railway bridge, is illustrated and discussed.
2011
Advances in Vibration Analysis Research
139
160
A. Carminelli, G. Catania (2011). B-spline Shell Finite Element Updating by Means of Vibration Measurements. RIJEKA : Intech.
A. Carminelli; G. Catania
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/104362
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