Measurement of dynamic strain using an optic fibre system in adaptive composite laminates with an integrated piezoelectric sensor/actuator

• Autorzy: Ramos C. A. , de Oliveira R. , Marques A. T. , Frazao O.
• Języki publikacji: EN

Abstrakty

EN

This study seeks the development of adaptive composites capable to monitor and actively damp vibrations. In the proposed material, vibrations measurements are performed by an embedded low finesse optical fibre extrinsic Fabry–Pérot interferometer, while active damping will be performed by embedded piezoelectric ceramics. This paper focuses on the development of the monitoring procedure. The proposed interrogation procedure for the low finesse optical fibre extrinsic Fabry–Pérot interferometer was successfully used to monitor the composite plate when submitted to four-point bending dynamic tests at different frequencies. The embedding of both sensing and actuating components in carbon-fibre reinforced composite laminates is also presented. In the case of the actuator, the efficiency of the embedding process was merely analysed from the capability of the piezoelectric ceramic to monitor dynamic strain of the composite using the PZT piezoelectric inverse effect.

Słowa kluczowe

EN

smart composite materials; health monitoring; Fabry-Perot interferometer; piezoelectric ceramic

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Optica Applicata
• Rocznik: 2011
• Tom: Vol. 41, nr 1
• Strony: 79--88
• Opis fizyczny: Bibliogr. 17 poz.

Twórcy

autor

Ramos C. A.

autor

de Oliveira R.

autor

Marques A. T.

autor

Frazao O.

• Instituto Superior de Engenharia do Porto (ISEP), Rua Dr. António Bernardino de Almeida 431, 4200-072, Porto, Portugal

Bibliografia

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