Detecting device and detecting method for rotation center of angle-of-attack mechanism of wind tunnel test section

Abstract

The invention relates to a detecting device and a detecting method for a rotation center of an angle-of-attack mechanism of a wind tunnel test section. The detecting device comprises a supporting positioning structure with a horizontal extending structure. The supporting positioning structure is provided with a guiding structure which can make the horizontal extending structure move vertically. The extending end of the horizontal extending structure is provided with a detecting positioning structure, and a measuring device which is arranged on the bent cutter supporting plate of the angle-of-attack mechanism of the wind tunnel test section correspondingly with the detecting positioning structure and can perform positive and negative angle-of-attack arc movement of the bent cutter supporting plate. The detecting device and detecting method for the rotation center of the angle-of-attack mechanism of the wind tunnel test section realize more visual and quick measurement process and furthermore establish a standard with small error and high stability. Furthermore the detecting device and the detecting method have advantages of remarkably shortening an application period, reducing number of operators, reducing labor intensity, and greatly reducing cost at each aspect.

Description

technical field [0001] The invention relates to a detection device and method for the rotation center of an attack angle mechanism in a wind tunnel test section. Background technique [0002] In the field of aerospace, many flight data need to be obtained through high-altitude and outer space simulation experiments with wind tunnel equipment. A key section in the wind tunnel is the test section, and the core device inside the test section is the angle of attack mechanism. The angle of attack mechanism is used to detect whether the performance of the wind tunnel can be reliably and accurately shaped for the development of the aircraft. Its role is irreplaceable. . The angle of attack mechanism is in the middle of the test section, such as figure 1 As shown, the angle of attack mechanism includes a machete support plate 1 composed of an upper support 11, a middle support 12 and a lower support 13, and the machete support plate 1 is clamped in the upper and lower rail frames....

AI Technical Summary

Problems solved by technology

This is because this method collects a large number of data points, and the collected data needs to be analyzed by a computer before the results can be obtained. The whole link cycle is long and cannot meet the instantaneous demand for measurement during the installation process of the test section.

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