Optimal Piezoelectric Actuators and Sensors Configuration for Vibration Suppression of Aircraft Framework Using Particle Swarm Algorithm

Abstract

Numbers and locations of sensors and actuators play an important role in cost and control performance for active vibration control system of piezoelectric smart structure. This may lead to a diverse control system if sensors and actuators were not configured properly. An optimal location method of piezoelectric actuators and sensors is proposed in this paper based on particle swarm algorithm (PSA). Due to the complexity of the frame structure, it can be taken as a combination of many piezoelectric intelligent beams and L-type structures. Firstly, an optimal criterion of sensors and actuators is proposed with an optimal objective function. Secondly, each order natural frequency and modal strain are calculated and substituted into the optimal objective function. Preliminary optimal allocation is done using the particle swarm algorithm, based on the similar optimization method and the combination of the vibration stress and strain distribution at the lower modal frequency. Finally, the optimal location is given. An experimental platform was established and the experimental results indirectly verified the feasibility and effectiveness of the proposed method.

Energy-Based Optimal Placement of Piezoelectric Actuator on Smart Thin Plate

“…Zoric et al [12] presented optimal actuators' sizes and locations over the first 5 modes of a smart cantilever beam by implementing fuzzy to transform controllability-based multi-objective function and constraints to pseudo-goal function, and hence, applied particle swarm optimization package to achieve the desired goal. Huang et al [26] established an experimental platform of an aircraft framework to verify the proposed method of actuators and sensors distribution. The comparison between different optimization algorithms showed that the genetic algorithm is more favorable than the particle swarm algorithm for the proposed system's vibration suppression rate .…”

Algorithm for the layout of a piezoelectric element in an elastic medium providing the maximal piezoelectric effect within a specified frequency range

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