A method is developed to predict the dynamic behavior of a structure from experimental FRF data of the same system subjected to different constraints. In particular it is required that the new structure undergoes more restrained conditions, but any type of ideal constraint, involving either translational or rotational degrees of freedom, can be accounted for. Among several interesting applications, the method can be used to overcome typical experimental drawbacks on rigid tested structures and to estimate untestable FRF terms of constrained systems. Numerical and experimental results are provided to show the consistency of the method and the possible range of applications.

Salvini, P., Sestieri, A. (1993). Predicting the frequency response function of a structure when adding constraints. MODAL ANALYSIS, 8(1), 55-62.

Predicting the frequency response function of a structure when adding constraints

SALVINI, PIETRO;
1993-01-01

Abstract

A method is developed to predict the dynamic behavior of a structure from experimental FRF data of the same system subjected to different constraints. In particular it is required that the new structure undergoes more restrained conditions, but any type of ideal constraint, involving either translational or rotational degrees of freedom, can be accounted for. Among several interesting applications, the method can be used to overcome typical experimental drawbacks on rigid tested structures and to estimate untestable FRF terms of constrained systems. Numerical and experimental results are provided to show the consistency of the method and the possible range of applications.
Pubblicato
Rilevanza internazionale
Articolo
Sì, ma tipo non specificato
Settore ING-IND/14 - Progettazione Meccanica e Costruzione di Macchine
English
Con Impact Factor ISI
Constraint theory; Degrees of freedom (mechanics); Describing functions; Frequency response; Mathematical models; Parameter estimation; Frequency response functions; Structural analysis
Salvini, P., Sestieri, A. (1993). Predicting the frequency response function of a structure when adding constraints. MODAL ANALYSIS, 8(1), 55-62.
Salvini, P; Sestieri, A
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/52259
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