TY - GEN
T1 - Model updating and damage detection using cross model cross mode method for 3D frame structures
AU - Liu, Fushun
AU - Wang, Peng
AU - Wang, Weiying
AU - Zhou, Lei
AU - Wang, Shuqing
PY - 2011
Y1 - 2011
N2 - For the health monitoring of civil structures, the study of finite element model updating or damage detection mainly focuses on undamped systems. Thus, their objective has been exclusively restricted to the correction of the mass and stiffness matrices. In contrast, this paper performs the model updating and damage detection for damped structures. A theoretical contribution of this paper is to extend the cross-model cross-mode (CMCM) method to simultaneously update the mass, damping and stiffness matrices of a finite element model when only few spatially incomplete, complex-valued modes are available. Numerical studies are conducted for a five-story frame structure with multiple damaged elements. The numerical results reveal that applying the CMCM method, together with an iterative Guyan reduction scheme, can yield good damage detection in general.
AB - For the health monitoring of civil structures, the study of finite element model updating or damage detection mainly focuses on undamped systems. Thus, their objective has been exclusively restricted to the correction of the mass and stiffness matrices. In contrast, this paper performs the model updating and damage detection for damped structures. A theoretical contribution of this paper is to extend the cross-model cross-mode (CMCM) method to simultaneously update the mass, damping and stiffness matrices of a finite element model when only few spatially incomplete, complex-valued modes are available. Numerical studies are conducted for a five-story frame structure with multiple damaged elements. The numerical results reveal that applying the CMCM method, together with an iterative Guyan reduction scheme, can yield good damage detection in general.
KW - Cross model cross mode
KW - Damage detection
KW - Frame structure
KW - Health monitoring
KW - Model updating
UR - http://www.scopus.com/inward/record.url?scp=79958057246&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/AMR.243-249.5369
DO - 10.4028/www.scientific.net/AMR.243-249.5369
M3 - Conference contribution
AN - SCOPUS:79958057246
SN - 9783037851258
T3 - Advanced Materials Research
SP - 5369
EP - 5373
BT - Advances in Civil Engineering and Architecture
T2 - 1st International Conference on Civil Engineering, Architecture and Building Materials, CEABM 2011
Y2 - 18 June 2011 through 20 June 2011
ER -