PD Parameter Tuning of Wind Tunnel Tail Support Active Vibration Control Based on Piezoelectric Stack
Verifying the aerodynamic performance of the aircraft often requires a full-model experiment of wind tunnel.The cantilever sting is generally used for full model support on account that the structure of the tail support is simple,convenience in assembly and low interference in experimental flow fields.But it also has the characteristics of small support stiffness and low structural damping,which is prone to the vibration of the sting-model system.The PD controller is often used to control the vibration of the tail support.However,there are some problems such as long time required for parameter tuning,low tuning efficiency.Therefore,the improved particle swarm optimization algorithm is applied to optimize PD parameter tuning.The control simulation and experimental results show that the PD controller based on the improved particle swarm optimization algorithm can effectively suppress the tail-support vibration,which can provide theoretical and practical reference for the active control of wind tunnel tail-support.