Vibration Control of a Composite Plate with Embedded Optical Fiber Sensor and Piezoelectric Actuator

Smart structures, structures containing sensor(s) and actuator(s) along with computational and control capabilities, are considered one of the best candidates for vibration control applications. A [0/90]6s glass-fiber composite plate embedded with one optical fiber and six piezoelectric elements has been fabricated, analyzed, and experimentally validated. It is shown that by using the in-situ optical fiber as a Michelson interferometer to detect the structural displacement and the piezoelectric elements as actuator, bending vibrations of the composite laminated plate can be effectively reduced.