A NUMERICAL APPROACH FOR FAULT DETECTION IN BEAM-LIKE STRUCTURES USING MODAL STRAIN ENERGY

Carlos Alberto Riveros, Edwin Fabián García, Manuel Alonso Builes

Resumen


Vibration-baseddamage detection is based on the fact that measurements of changes in thevibration properties of a structure can be used to determine the occurrence ofstructural damage. Therefore, there is a strong need for the development andimplementation of fault detection and optimum sensor location methods thataddress the issue of limited instrumentation and its effect in predictingdamage degradation. In this paper, the results of a numerical implementation ofa previously developed sensor distribution method are presented. A finiteelement model of a railway box-girder bridge is assembled. Then, the damageindex method is numerically implemented in order to identify damage from theresulting sensor measurements. Both the optimum sensor placement and the damagedetection methods are based on the concept of modal strain energy. Finally, thenumerical results show that the proposed approach is suitable for continuousdamage monitoring implementations and can be used as a useful tool for damageassessment in beam-like structures.

Texto completo:

PDF


DOI: https://doi.org/10.24050/reia.v7i13.240

Métricas de artículo

Vistas de resumen
120




Cargando métricas ...

Enlaces refback

  • No hay ningún enlace refback.




Copyright (c)






 

 

 

 

 

UNIVERSIDAD EIA

Sede de Las Palmas: Km 2 + 200 Vía al Aeropuerto José María Córdova Envigado, Colombia. Código Postal: 055428
Tel: (574) 354 90 90. Fax: (574) 386 11 60

Sede de Zúñiga: Calle 25 Sur 42-73 Envigado, Colombia. Código Postal: 055420
Tel: (574) 354 90 90. Fax: (574) 331 34 78
NIT: 890.983.722-6

Sistema OJS - Metabiblioteca |