Active Vibration Control for Wind Tunnel Model Using Hybrid Fuzzy-PID Scheme

This study investigates a hybrid fuzzy-PID control scheme for suppressing the dangerous low-frequency resonant vibration of the wind tunnel aerodynamic model at high angles of attack. Firstly, the cantilever beam structure is constructed for the model. Secondly, the single input and single output (SISO) system transfer function of the cantilever beam structure, as the study object in simulation, is established with finite element methodology and experimental methodology. Then the corresponding hybrid control scheme based on PID control and fuzzy control is developed, using the cantilever beam system for the wind tunnel aerodynamic models as a test bed. Finally, the control scheme for the system is evaluated with simulation and verified by the experiment. The results demonstrated the effectiveness and feasibility of the hybrid control scheme. It is highly promising for the application field as it achieves better control performance under resonant excitation and protects the actuator from overload.