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