A high-speed model horizontal tail "back" deformation angle device with high horizontal tail layout

Abstract

The application discloses a high-speed model flat tail "back" deformation angle device with a high flat tail layout. It consists of a vertical tail and several pairs of variable angle blocks. The vertical tail is formed with a "back"-shaped connection structure, and the "back"-shaped connection structure has a first connection part and a second connection part, and the first connection part and the second connection part are stepped. The angle-changing block includes lugs and a "back"-shaped installation structure. The "back"-shaped installation structure has a first installation part and a second installation part. The first installation part and the second installation part are stepped and connected to the first connection part and the second installation part. The second connecting portion is fitted correspondingly, and the ear pieces are connected to the first mounting portion. The lug deflection angles of the same variable angle block pair are the same, and the lug deflection angles of different variable angle block pairs are different. The vertical tail is configured to be detachably matched with any pair of variable-angle block pairs. The two variable-angle block pairs in the variable-angle block pair are respectively fitted and detachably connected to both sides of the vertical tail. The first mounting part It is detachably connected with the first connection part, and the second installation part is detachably connected with the second connection part.

Description

technical field [0001] This application relates to the technical field of aircraft model wind tunnel testing, in particular, to a high-speed model flat tail "back" deformation angle device with a high flat tail layout. Background technique [0002] The high-level tail is a common aerodynamic layout of aircraft, which is widely used in business jets and large transport aircraft. High-speed wind tunnel tests will be carried out during the research and development process of aircraft with high horizontal tail layout, and the test of variable horizontal tail deflection will be carried out in the high-speed wind tunnel test to obtain the influence of horizontal tail deflection on the aerodynamic characteristics of the aircraft. In this process, the change of the deflection of the horizontal tail is realized through the angle-changing device, that is, the angle-changing device connects the horizontal tail and the vertical tail and realizes the change of the angle of the horizontal...

AI Technical Summary

Problems solved by technology

One is that during the test, the horizontal tail will generate a large aerodynamic load and then transmit it to the vertical tail through the angle-changing device. On the vertical tail with a high connection position and a thin thickness, the angle-changing device will bear large forces and moments, which may If it is damaged, there is a safety risk; the second is whether the designed horizontal tail angle-changing device can ensure that the aerodynamic shape of the connection between the horizontal tail and the vertical tail is not damaged. If safety is considered too much, the designed horizontal tail angle-changing device will protrude from the original aerodynamic shape , affecting the accuracy of the wind tunnel test results of the model

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