Probability of Fault Location in a Beam Structure Using the Spectral Element Method and the Spatial Wavelet Analysis
The aim of the work is to develop a procedure allowing the test engineer to determine the probability of finding a crack in a beam structure.The procedure is based on the use of wavelet analysis and the simulation is performed by taking advantage of spectral elements to represent accurately the dynamic behaviour of beam structures in the high frequency range.In this context,numerical analyses are performed with the final scope of simulating a real testing environment: measurement error is considered and spectral elements are used so as to avoid influencing the capacity of the procedure with regard to solving the inverse problem.In this article the relation between the excitation frequency and the probability of locating the fault is shown.In particular,it is demonstrated by simulation that the probability of correctly determining the fault location increases with the excitation frequency.
Spectral Element Method Cracked Beam Spatial Wavelet Analysis Fault Location Probability
Marco Gherlone Romualdo Ruotolo Cecilia Surace
Department of Aeronautical and Space Engineering,Politecnico di Torino,corso Duca degli Abruzzi 24,T Department of Structural and Geotechnical Engineering,Politecnico di Torino,corso Duca degli Abruzzi
国际会议
The 8th International Conference on Damage Assessment of Structures(DAMAS 2009)(第八届结构损伤评价国际学术会议)
北京
英文
101-108
2009-08-03（万方平台首次上网日期，不代表论文的发表时间）