基于压电驱动器的风洞全模试验主动抑振研究进展

he full span wind tunnel test is an important test for validating the aerodynamic performance ofthe aircraft. As the most commonly used support system, the cantilever sting has the advantages of simplici-ty in structure ,convenience in assembly , and low support interference , but it also has the characteristics ofsmall support stiffness and low structural damping , which is prone to the model support system vibration.This phenomenon happens frequently in large size and cryogenic wind tunnels and may give rise to an in-terruption of the polar. Aiming at this problem,this paper first reviews the historical development and tradi-tional vibration suppression methods in full span wind tunnel tests.'Then it analyzes the vibration problemof full span wind tunnel tests.Furthermore , various principles on the piezo-based vibration-suppression andcorresponding structure configurations are introduced , and research at home and abroad on the active vi-bration control algorithms is reviewed. Last , the paper summarizes the influences of the vibration-suppres-sion system on the aerodynamic coefficient and discusses the results regardig the expansion of the angle ofattack.