Active Vibration Control using Piezoelectric Actuator: Implementation of Ant Colony Optimization Technique in Virtual Experimentation

Khairul Affendy Md Nor, Asan G. A. Muthalif and Azni Nabela Wahid (International Islamic University Malaysia, Malaysia)

This paper demonstrates optimization of collocated sensor-actuator location and the controller gains of active vibration control system. Ant colony optimization algorithm is employed for this purpose. Instead of using equation-based modeling for the system, the plant is a finite element model developed in COMSOL Multiphysics software, which later interfaced with the MATLAB-coded optimization algorithm using the Livelink for MATLAB feature. The benchmark model is a simply supported thin plate excited and attenuated by two piezoelectric patches. The optimization is based on the average energy reduction across a frequency range between 11 Hz to 50 Hz, which covers the first three modes. It is found that the maximum attenuation achieved is 68.31% using optimal values of sensor-actuator location and controller gains.

Journal: International Journal of Simulation- Systems, Science and Technology- IJSSST V15

Published: Jun 30, 2014

DOI: 10.5013/IJSSST.a.15.03.09