Transient Vibration Control of Delaminated Composite Plates Using Active Fiber Composites and Velocity Feedback Gain

Abstract

This article presents an active control strategy to mitigate the undesirable vibration responses in delaminated composite plates. The control system integrates Active Fiber Composite (AFC) patches as actuators and employs a velocity feedback control algorithm with a tunable gain (Gv) to provide active damping. A finite element model, coded in MATLAB, forms the basis for simulating the closed-loop control performance. A parametric study is conducted to evaluate the effectiveness of the controller by analyzing the influence of the velocity feedback gain (Gv) and the optimal placement of the AFC patches. The results demonstrate that the implemented active control strategy successfully attenuates the amplified dynamic displacements caused by Delaminations damage. The study concludes that the integrated AFC system with velocity feedback is a highly effective method for suppressing vibrations and enhancing the performance of damaged composite structures.