Dynamic Response Analysis of Oscillating Blade Gust Generator System and Wind Tunnel

Aiming at the aerodynamic and structural coupling characteristics between the oscillating blade gust generator system and the wind tunnel body in large low-speed wind tunnel, a coupling analysis system including rigid/elastic gust generator blades, elastic wind tunnel body and flow field aerodynamic force is established. The fluid-solid coupling method is used to analyze the influence of gust generator motion on wind tunnel vibration and gust flow field. The main frequency characteristics of the horizontal and vertical motion direction deformation of the generator blade are obtained. The aerodynamic and structural coupling design and analysis method of gust generator-tunnel system in large low-speed wind tunnel is established, which provides an analysis method for the design of gust generator in large low-speed wind tunnel.