Pressure measuring device for a scale model for elastic similar structure of a wing in a large plane

An aeroelastic scale model of a wing of a plane comprising skin, wing beams, and a pressure measuring device, the pressure measuring device further comprising:

• a bracket, pressure measuring hoses, holding blocks, and pressure measuring steel pipes, wherein an upper surface and a lower surface of the bracket are bonded to the skin and the wing beams by resin adhesive, each of the pressure measuring steel pipes is connected with a corresponding one of the pressure measuring hoses, each of the pressure measuring steel pipes is embedded into a corresponding one of pipe grooves in the bracket, and each of the pressure measuring steel pipes is fixed by a corresponding one of the holding blocks, and the pressure measuring steel pipes extends out of the skin;
• the bracket is provided with the pipe grooves for placing the pressure measuring steel pipes at required pressure measuring positions, and notches in the bracket for placing the holding blocks are formed at the pipe grooves in a middle part of the bracket;
• the upper surface and the lower surface of the bracket are provided with semi-cylindrical convex structures at the required pressure measuring positions, a height of each of the semi-cylindrical convex structures is the same as a thickness of the skin, and an inner diameter of each of the semi-cylindrical convex structures is equal to an outer diameter of each of the pressure measuring steel pipes;
• an outer wall of the bracket is a thin-walled structure with a thickness of 1 mm, an inner part of the bracket is supported by a truss structure, and a plurality of through holes are arranged in the middle part of the bracket to facilitate laying of the pressure measuring hoses in the wing;
• and an error of perpendicularity between an axis of each of the pressure measuring steel pipes and a tangent plane of a skin surface is smaller than 1.0 degree.