Author(s)

Paula F. Viero and Ney Roitman

Abstract

— The present work reports on the evaluation of the performance of some damage identification methods applied on a small scale hydroelastic model of a fixed offshore platform designed and constructed according to the Similitude Theory. Experimental tests were carried on the model in order to verify the behavior of the structure due to damage and to deck mass changes and in order to evaluate the feasibility of the application of the used methods. NOMENCLATURE (x)j • j* mode shape of the undamaged structure (x) (<|>p)j : j mode shape of the damaged structure (p) J^X,L '• J component of the undamaged structure mode shape (^%) corresponding to the mode shape L J^P,L • J* component of the damaged structure mode shape (<|>p) corresponding to the mode shape L fsj : natural frequency of the model

Keywords