Development of Adaptive Composites for Vibration Monitoring and Active Damping using Embedded Optical Fiber and Piezoelectric Ceramics Preparation

Abstract

This study aims to develop composite materials capable of monitoring vibrations and actively damping them. These materials comprise an external Fabry-Perot interferometer with low-fiber optical fibers for measuring vibrations and piezoelectric ceramics for active damping. The study specifically focuses on the process of developing monitoring processes.

The study demonstrates that the proposed external Fabry-Perot transducer interrogation technique was effective in monitoring composite material panels during dynamic bending tests with the diode system at varying frequencies. The inclusion of both sensing and control components, such as optical fibers and piezoelectric ceramics, within layers of composite materials reinforced with carbon fibers was discussed. For the active component, the efficiency of the embedding process was evaluated based on the ability of the piezoelectric ceramic to measure dynamic stress changes of the composite materials using the inverse piezoelectric (PZT) effect.