®®®® SIIA Público

Título del libro: 2018 15th International Conference On Electrical Engineering, Computing Science And Automatic Control, Cce 2018
Título del capítulo: System identification for damage detection in buildings

Autores UNAM:
JESUS MORALES VALDEZ; LUIS AGUSTIN ALVAREZ ICAZA LONGORIA; JOSE ALBERTO ESCOBAR SANCHEZ;
Autores externos:

Idioma:
Inglés
Año de publicación:
2018
Palabras clave:

Acoustic wave velocity; Automation; Damping; Least squares approximations; Parameter estimation; Process control; Seismic response; Shear flow; Shear waves; Structural health monitoring; Wave propagation; Acceleration signals; Constant disturbances; Detection threshold; Forgetting factors; Integral filters; Least squares methods; Multistory building; Shear wave velocity; Damage detection


Resumen:

An algorithm for damage detection in a multi-story building modeled by a wave equation with Kelvin damping is presented. Damage detection is achieved by relating stiffness loss with reduction in the shear wave velocity of the seismic induced motion propagation through the structure. In order to estimate wave velocity and damping parameters, an identification system based on the least squares method with forgetting factor is used. In addition, a parameterization is presented based on linear integral filters, which eliminates constant disturbances, attenuate measurement noise and depend only on acceleration signals. Once parameters information is available, a detection threshold is designed that compares them with reference values. The experimental results validate the feasibility of the proposed method. © 2018 IEEE.


Entidades citadas de la UNAM: