Article (Scientific journals)
Structural damage diagnosis by Kalman model based on stochastic subspace identification
Yan, Ai Min; De Boe, Pascal; Golinval, Jean-Claude
2004In Structural Health Monitoring, 3 (2), p. 103-119
Peer Reviewed verified by ORBi
 

Files


Full Text
Structural Damage Diagnosis by Kalman Model.pdf
Publisher postprint (536.81 kB)
Request a copy

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
damage diagnosis; novelty detection; Kalman model; stochastic subspace identification; damage location; aircraft model; bridge diagnosis
Abstract :
[en] This paper presents an application of statistical process control techniques for damage diagnosis using vibration measurements. A Kalman model is constructed by performing a stochastic subspace identification to fit the measured response histories of the undamaged (reference) structure. It will not be able to reproduce the newly measured responses when damage occurs. The residual error of the prediction by the identified model with respect to the actual measurement of signals is defined as a damage-sensitive feature. The outlier statistics provides a quantitative indicator of damage. The advantage of the method is that model extraction is performed by using only the reference data and that no further modal identification is needed. On-line health monitoring of structures is therefore easily realized. When the structure consists of the assembly of several sub-structures, for which the dynamic interaction is weak, the damage may be located as the errors attain the maximum at the sensors instrumented in the damaged sub-structures.
Disciplines :
Engineering, computing & technology: Multidisciplinary, general & others
Author, co-author :
Yan, Ai Min;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > LTAS - Vibrations et identification des structures
De Boe, Pascal;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > LTAS - Vibrations et identification des structures
Golinval, Jean-Claude  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > LTAS - Vibrations et identification des structures
Language :
English
Title :
Structural damage diagnosis by Kalman model based on stochastic subspace identification
Publication date :
June 2004
Journal title :
Structural Health Monitoring
ISSN :
1475-9217
eISSN :
1741-3168
Publisher :
Sage, London, United Kingdom
Volume :
3
Issue :
2
Pages :
103-119
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 24 August 2009

Statistics


Number of views
114 (3 by ULiège)
Number of downloads
2 (0 by ULiège)

Scopus citations®
 
63
Scopus citations®
without self-citations
57
OpenCitations
 
53

Bibliography


Similar publications



Contact ORBi