SIMPLIFIED MODELS FOR THE LOCATION OF CRACKS IN BEAM STRUCTURES USING MEASURED VIBRATION DATA
作者： J.K SINHA , M.I FRISWELL , S EDWARDS
关键词: System identification 、 Vibration 、 Structural engineering 、 Numerical analysis 、 Experimental data 、 Engineering 、 Finite element method 、 Beam (structure) 、 Pattern recognition (psychology) 、 Uniqueness
摘要: Abstract A new simplified approach to modelling cracks in beams undergoing transverse vibration is presented. The uses Euler–Bernoulli beam elements with small modifications the local flexibility vicinity of cracks. This crack model then used estimate locations and sizes, by minimizing difference between measured predicted natural frequencies via updating. uniqueness that allows location damage extent be estimated directly. may also generate training data for pattern recognition approaches health monitoring. proposed method has been illustrated using experimental on examples.
harvard.edu
core.ac.uk
manchester.ac.uk
elsevier.com参考文章(45)
Y. Narkis, Identification of Crack Location in Vibrating Simply Supported Beams Journal of Sound and Vibration. ,vol. 172, pp. 549- 558 ,(1994) , 10.1006/JSVI.1994.1195
Tae W. Lim, Structural damage detection using modal test data AIAA Journal. ,vol. 29, pp. 2271- 2274 ,(1991) , 10.2514/3.10873
Irina Trendafilova, Pattern Recognition Methods for Damage Diagnosis in Structures from Vibration Measurements Key Engineering Materials. pp. 85- 96 ,(2001) , 10.4028/WWW.SCIENTIFIC.NET/KEM.204-205.85
T.D. Chaudhari, S.K. Maiti, A study of vibration of geometrically segmented beams with and without crack International Journal of Solids and Structures. ,vol. 37, pp. 761- 779 ,(2000) , 10.1016/S0020-7683(99)00054-2
K. WORDEN, G. MANSON, N.R.J. FIELLER, DAMAGE DETECTION USING OUTLIER ANALYSIS Journal of Sound and Vibration. ,vol. 229, pp. 647- 667 ,(2000) , 10.1006/JSVI.1999.2514
O.S. Salawu, Detection of structural damage through changes in frequency: a review Engineering Structures. ,vol. 19, pp. 718- 723 ,(1997) , 10.1016/S0141-0296(96)00149-6
Andrew D. Dimarogonas, Vibration of cracked structures: A state of the art review Engineering Fracture Mechanics. ,vol. 55, pp. 831- 857 ,(1996) , 10.1016/0013-7944(94)00175-8
A.K. Pandey, M. Biswas, M.M. Samman, Damage detection from changes in curvature mode shapes Journal of Sound and Vibration. ,vol. 145, pp. 321- 332 ,(1991) , 10.1016/0022-460X(91)90595-B
P.F. Rizos, N. Aspragathos, A.D. Dimarogonas, Identification of crack location and magnitude in a cantilever beam from the vibration modes Journal of Sound and Vibration. ,vol. 138, pp. 381- 388 ,(1990) , 10.1016/0022-460X(90)90593-O
M.M.F. Yuen, A numerical study of the eigenparameters of a damaged cantilever Journal of Sound and Vibration. ,vol. 103, pp. 301- 310 ,(1985) , 10.1016/0022-460X(85)90423-7