Authors:
Alberto Cavallo
1
;
Giuseppe De Maria
1
;
Michele Iadevaia
2
;
Ciro Natale
1
and
Salvatore Pirozzi
1
Affiliations:
1
Seconda Università di Napoli, Italy
;
2
Dynamic Design Solutions (DDS) NV, Belgium
Keyword(s):
Experimental Modal Analysis, Subspace Identification, Flexible Structures.
Related
Ontology
Subjects/Areas/Topics:
Computer Vision, Visualization and Computer Graphics
;
Image and Video Analysis
;
Informatics in Control, Automation and Robotics
;
Signal Processing, Sensors, Systems Modeling and Control
;
System Identification
;
System Modeling
;
Time-Frequency Analysis
Abstract:
The main objective of this paper is to propose an experimental modal analysis procedure, based on the use of
a gray-box model for flexible structures. The described approach presents interesting advantages with respect
to commercial solutions: ease of use due to the low number of parameters to set for an identification session;
no need for expert users, even in the presence of particular cases such as double modes, since it does not use
a stabilization diagram to be elaborated; use of a gray-box model whose unknown parameters have a clear
physical meaning. All these characteristics are discussed in the paper, and the performance of the proposed
procedure has been evaluated by using experimental data available from a non-trivial standard benchmark.
The results have been compared with those obtained by using a commercial tool.