Abstract:In order to reduce the gust response level of the high-speed wing aeroelastic system, the vibro-impact absorber technology is introduced into the aeroelastic system. Through the collision contact between the vibro-impact absorber and the wing skin, the gust response energy is absorbed and transferred, reducing the gust response level and improving the stability of the aeroelastic system. The dynamic model of the aeroelastic gust response for wings with a vibro-impact absorber is established. The Hertz contact model is used to calculate the collision contact force between the absorber and the wing skin, the "1-cos" model is used to calculate the gust velocity, and the piston theory is used to calculate the unsteady aerodynamic force. The aeroelastic gust response characteristics of wings with vibro-impact absorbers are analyzed. The results show that the vibro-impact absorber can absorb and transfer the energy of wing gust response through collision with the wing skin, thereby achieving the effect of gust alleviation. The influence of vibro-impact absorber parameters on the aeroelastic gust response alleviation effect was explored. The results showed that reducing collision stiffness and initial clearance can improve the aeroelastic system gust response alleviation effect. There is an optimal frequency ratio that makes the system have a better gust response alleviation effect. For the installation position of the vibro-impact absorber, its gust alleviation effect is more significant when it is closer to the leading edge of the wing.