Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Identification of the location and size of cracks in beams by a piezoceramic actuator–sensor
10.1002/stc.204.abs
This paper presents an application of the modal identification technique employing piezoceramic (PZT) material to identify the location and size of cracks in beams. A PZT patch can be used both as an actuator and a sensor by utilizing its electro‐mechanical coupling property. Measuring the impedance at a location where a PZT is bonded to a beam, modal frequencies of the beam are identified from the measured impedance. In this technique, the beam can be excited at high frequencies in order to obtain information of high‐frequency modes that are sensitive to local damage. The location and size of the cracks can be identified from the measured impedance as well as using a cracked beam model formulated from a spectral element method (SEM). The SEM is used in the structural modelling because of its high accuracy in modelling of beam in high‐frequency range. An experiment was performed on a set of cracked aluminium beams and it is demonstrated that the location and depth of the cracks could be accurately identified using the proposed technique. Copyright © 2007 John Wiley & Sons, Ltd.
Identification of the location and size of cracks in beams by a piezoceramic actuator–sensor
10.1002/stc.204.abs
This paper presents an application of the modal identification technique employing piezoceramic (PZT) material to identify the location and size of cracks in beams. A PZT patch can be used both as an actuator and a sensor by utilizing its electro‐mechanical coupling property. Measuring the impedance at a location where a PZT is bonded to a beam, modal frequencies of the beam are identified from the measured impedance. In this technique, the beam can be excited at high frequencies in order to obtain information of high‐frequency modes that are sensitive to local damage. The location and size of the cracks can be identified from the measured impedance as well as using a cracked beam model formulated from a spectral element method (SEM). The SEM is used in the structural modelling because of its high accuracy in modelling of beam in high‐frequency range. An experiment was performed on a set of cracked aluminium beams and it is demonstrated that the location and depth of the cracks could be accurately identified using the proposed technique. Copyright © 2007 John Wiley & Sons, Ltd.
Identification of the location and size of cracks in beams by a piezoceramic actuator–sensor
Ritdumrongkul, Sopon (Autor:in) / Fujino, Yozo (Autor:in)
Structural Control and Health Monitoring ; 14 ; 931-943
01.10.2007
13 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Identification of the location and size of cracks in beams by a piezoceramic actuator-sensor
| Online Contents | 2007
| British Library Online Contents | 1996
Active piezoceramic-driven flexure actuator
| British Library Conference Proceedings | 1999
Determining the Size and Location of Transverse Cracks in Beams
| British Library Online Contents | 1995
Quantitative health monitoring of bolted joints using a piezoceramic actuator-sensor
| British Library Online Contents | 2004