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A numerical approach for Structural System Identification by Observability Techniques

A numerical approach for Structural System Identification by Observability Techniques
Auteur(s): , , , , ORCID
Présenté pendant IABSE Congress: Challenges in Design and Construction of an Innovative and Sustainable Built Environment, Stockholm, Sweden, 21-23 September 2016, publié dans , pp. 25-31
DOI: 10.2749/stockholm.2016.0025
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Observability techniques enable the structural system identification of static structures from a symbolic approach. The main advantage of this method is its deep mathematical foundation that enable...
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Détails bibliographiques

Auteur(s): (University of Castilla-La Mancha, Ciudad Real, Spain)
(Trinity College, Dublin, Ireland)
(University, Shanghai, China)
(Tongji University, Shanghai, China)
ORCID (Universitat Politècnica de Catalunya-BarcelonaTECH, Barcelona, Spain)
Médium: papier de conférence
Langue(s): anglais
Conférence: IABSE Congress: Challenges in Design and Construction of an Innovative and Sustainable Built Environment, Stockholm, Sweden, 21-23 September 2016
Publié dans:
Page(s): 25-31 Nombre total de pages (du PDF): 7
Page(s): 25-31
Nombre total de pages (du PDF): 7
Année: 2016
DOI: 10.2749/stockholm.2016.0025
Abstrait:

Observability techniques enable the structural system identification of static structures from a symbolic approach. The main advantage of this method is its deep mathematical foundation that enables the definition of parametric equations for the estimates. Nevertheless, this symbolic approach is not enough for the application of this method on actual structures. To fill this gap, this article presents the introduction into the symbolic structural system identification by observability techniques of a new numerical approach. This application includes the development of an algorithm that reduces the unavoidable numerical errors produced by the lack of precision of computers. The comparison of the observability technique with other existing methods presented in the literature shows that the number of required measurements is significantly lower. Furthermore, contrary to other analysed methods, no information from the undamaged structure is required.