Low-speed wind tunnel aerial refueling hose-taper sleeve dynamic characteristic test method

Abstract

The invention discloses a low-speed wind tunnel aerial refueling hose-taper sleeve dynamic characteristic test method, which comprises the following steps of: establishing a perspective transformationimaging model of a high-speed camera by utilizing a three-dimensional vision principle by adopting equipment including a refueling hose, a taper sleeve, supporting equipment, mobile equipment, an oilreceiving aircraft model, an oil receiving taper pipe, two high-speed cameras and a PIV system; calibrating the parameter matrix, establishing a mapping relationship between space points and image points, calculating space coordinates of a centroid point of the refueling taper sleeve through data acquired by a high-speed camera, and obtaining a centroid track of the refueling taper sleeve and information of a pitching attitude angle formed by a longitudinal axial vector of a refueling taper sleeve coordinate system and a horizontal plane; and carrying out speed field calculation and processing on data collected by the PIV system to obtain a head wave effect in the butt joint process of the refueling taper sleeve and the oil receiving taper pipe and a speed cloud picture of the whip throwing phenomenon. According to the method, the dynamic characteristics of the aerial refueling hose-taper sleeve are accurately simulated, and the accuracy of a test result is improved.

Description

technical field [0001] The invention belongs to the technical field of low-speed wind tunnel drop test, and relates to a method for testing the dynamic characteristics of a refueling hose-taper sleeve in the air in a low-speed wind tunnel. Background technique [0002] Aerial refueling technology plays a very important role in modern warfare. Under the offensive and defensive requirements of modern air combat, its application can expand the attack area of ​​combat aircraft, prolong the combat time, and greatly improve the performance of fighter jets, attack aircraft, unmanned aerial vehicles and reconnaissance aircraft. Such key combat capabilities are highly valued by military powers and have become a key development direction. In addition, for the civilian field, the significance of aerial refueling is as follows: (1) Long-distance routes reach the destination directly. Avoid taking off and landing at mid-way airports for refueling to make long-distance routes faster; (2)...

AI Technical Summary

Problems solved by technology

[0004] Based on the need to accurately simulate the dynamic characteristics of the aerial refueling hose-drogue sleeve, the present invention provides a low-speed wind tunnel aerial refueling hose-drogue dynamic characteristic test method. This method solves the problem of using a simulation method to simulate the refueling cone in the existing test method Disadvantages of the butt joint process of sleeve and oil receiving pipe

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