Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Wavelet‐based technique for structural damage detection
A wavelet‐based technique is proposed for structural damage detection and health monitoring. In this technique, characteristics of representative vibration signals under the wavelet transformation are examined for damage identification. The proposed method is based on only the output data without the need for measuring the excitation forces, any modal identification or numerical models. The method is described theoretically and verified both experimentally and numerically using a railway steel bridge. The applicability of utilizing piezoelectric actuators for exciting large structures such as steel bridges is also investigated in this paper. Several damage scenarios were introduced to the test structure by removing bolts from some stiffeners located on the web of the main girder. Similar damage scenarios were introduced to the finite element model of the test structure. The results indicate that the current approach can identify the location of small damage effectively. The proposed method combined with the use of piezoelectric actuators is shown to be very suitable for continuous health monitoring of steel bridges. Copyright © 2009 John Wiley & Sons, Ltd.
Wavelet‐based technique for structural damage detection
A wavelet‐based technique is proposed for structural damage detection and health monitoring. In this technique, characteristics of representative vibration signals under the wavelet transformation are examined for damage identification. The proposed method is based on only the output data without the need for measuring the excitation forces, any modal identification or numerical models. The method is described theoretically and verified both experimentally and numerically using a railway steel bridge. The applicability of utilizing piezoelectric actuators for exciting large structures such as steel bridges is also investigated in this paper. Several damage scenarios were introduced to the test structure by removing bolts from some stiffeners located on the web of the main girder. Similar damage scenarios were introduced to the finite element model of the test structure. The results indicate that the current approach can identify the location of small damage effectively. The proposed method combined with the use of piezoelectric actuators is shown to be very suitable for continuous health monitoring of steel bridges. Copyright © 2009 John Wiley & Sons, Ltd.
Wavelet‐based technique for structural damage detection
Beskhyroun, Sherif (Autor:in) / Oshima, Toshiyuki (Autor:in) / Mikami, Shuichi (Autor:in)
Structural Control and Health Monitoring ; 17 ; 473-494
01.08.2010
22 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Wavelet-based technique for structural damage detection
| Online Contents | 2010
Structural damage detection and calibration using a wavelet–kurtosis technique
| Online Contents | 2007
Bayesian wavelet methodology for structural damage detection
| Online Contents | 2008
Structural damage detection from wavelet packet sensitivity
| Online Contents | 2005