Application of additive manufacturing to 30CrMnSiA high speed wind tunnel test model design and fluid-structure interaction analysis

Additive manufacturing technology can be processed in any complex shape parts. The short manufacturing cycle and low cost are its unique advantages compared to the traditional machining, and thus it has wide application prospects in the wind tunnel test model manufacture. In view of the material 30CrMnSiA commonly used in the high speed wind tunnel model processing, the metal powder preparation, detection and material specimen manufacture are studied. On this basis, with test piece data as a yardstick for material performance, an AgardB model with hollow airfoil is designed based on the additive manufacturing process. Moreover, fluid-structure interaction analysis is conducted for the model using Ansys and the optimal design is carried out. The results indicate that the model structure can meet the requirement of high-speed wind tunnel testing.