Sensors, Vol. 19, Pages 4341: Structural Damage Identification Based on AR Model with Additive Noises Using an Improved TLS Solution

In this study, a partial errors-in-variables (EIV) model is used so that both the current and prior observation errors are considered. Accordingly, a total least-squares (TLSE) solution is introduced to solve the partial EIV model. The solution estimates and accounts for the correlations between the current observed data and the design matrix. An effective damage indicator is chosen to count for damage levels of the structures. Both mathematical and finite element simulation results show that the proposed TLSE method yields better accuracy than the classical LS method and the AR model. Finally, the response data of a high-rise building shaking table test is used for demonstrating the effectiveness of the proposed method in identifying the location and damage degree of a model structure.

Source: Sensors - October 7, 2019 Category: Biotechnology Authors: Wu Li Zhang Tags: Article Source Type: research