Wind tunnel corner assembling method

Abstract

The invention provides a wind tunnel corner assembling method, the method is simple, the universality is high, the operation is easy, the precision is high, and the problem of precision control of assembling of a large-scale wind tunnel corner segment is solved. Guiding vanes of the wind tunnel corner segment and an elliptical ring shell are assembled in a horizontal plane so that the angle between the guiding vanes and the plane of the elliptical ring shell is adjusted more easily, the guiding vanes can maintain uniform space and consistent angle, and the assembling difficulty between the guiding vanes and the elliptical ring shell is reduced; and the elliptical ring shell of the wind tunnel corner segment and a straight cylindrical shell A and a straight cylindrical shell B are assembled in a vertical plane so that the bending moment generated in an assembling process of the straight cylindrical shell A and the straight cylindrical shell B due to shift of the center of gravity is eliminated, the assembling positioning of the elliptical ring shell and the straight cylindrical shell A and the straight cylindrical shell B is more accurate, the requirement of multi-time adjustment of the placement attitude of the straight cylindrical shell A and the straight cylindrical shell B of the conventional method is omitted, and the assembling process is simplified.

Description

technical field [0001] The invention relates to the technical field of large-scale wind tunnel assembly, in particular to a method for assembling corners of a wind tunnel. Background technique [0002] The wind tunnel is an artificially generated and controlled airflow, which is used to simulate the flow of air around the aircraft or entity, and can measure the effect of the airflow on the entity and observe physical phenomena. It is a kind of pipeline-shaped experimental equipment. One of the most commonly used and effective tools for experimentation. The corner section is an important part of the wind tunnel body, which can change the flow direction of the airflow. The elliptical ring shell of the corner section is equipped with a high-precision deflector that changes the direction of the airflow. The two ends of the elliptical ring shell are respectively connected with the straight cylinder A and the straight cylinder B in the form of welding. How to control the corner s...

AI Technical Summary

Problems solved by technology

[0003] When assembling the corner section of the traditional wind tunnel, it mainly relies on the assembly of tire frames. The elliptical ring shell with the deflectors assembled, the straight cylinder body A, and the straight cylinder body B are placed in the same horizontal plane for assembly. Since the straight cylinder body A and the straight cylinder body B The end connected with the elliptical ring shell is an elliptical mouth. After it is hoisted, it will rotate around the axis of the cylinder due to the offset of the center of gravity. After it is placed on the horizontal bracket, the straight cylinder needs to be adjusted several times. The installation posture of A and straight cylinder B is very cumbersome, and it is difficult to meet the trend of large-scale development of wind tunnels

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