Wind tunnel test putting device and put object model design method thereof

Abstract

The invention discloses a wind tunnel test putting device and a put object model design method thereof. The device comprises a putting hanging frame, which is fixedly provided with a spring, wherein one end of the spring is connected with a model hook, a hook rotating shaft is fixedly arranged on the putting hanging frame, and the model hook is rotationally connected with the hook rotating shaft; a T-shaped inclined joint, which is provided with a T-shaped inclined joint rotating shaft, wherein the T-shaped inclined joint is connected with the model hook through the T-shaped inclined joint rotating shaft; a connector lug I, which is connected to the end part of the T-shaped inclined joint, wherein the end part of the connector lug I is connected with a constantan wire; a connector lug II, wherein the constantan wire is connected between the connector lug I and the connector lug II, and the connector lug II is connected with a cross-shaped connecting block; a sliding block, which is arranged on the putting hanging frame in a sliding manner; a distance adjusting screw, which is connected with the sliding block, wherein the connector lug I and the connector lug II are connected with a power lead; and a putting object model, which is hung on the model hook. According to the invention, the putting of an external store model in a wind tunnel putting test is rapidly, efficiently and stably realized, and the efficiency of the wind tunnel test is improved.

Description

technical field [0001] The invention belongs to the technical field of wind tunnel test, and more specifically, the invention relates to a wind tunnel test delivery device and a design method for a delivery object model thereof. Background technique [0002] The main purpose of the aircraft low-speed release wind tunnel test is to obtain the separation motion attitude and trajectory of the drop at the initial stage of release, to determine the safety and reliability of the drop from the aircraft, and to analyze the aircraft at various angles of attack, sideslip angles, The impact of parameters such as flight speed, height, shape of the drop, and suspension position and attitude on the aircraft on the separation trajectory and attitude of the drop determines the parameter range for safe delivery. [0003] During the test, the aircraft model is installed in the wind tunnel test section, and the drop model is installed on the corresponding hanger of the aircraft model through t...

AI Technical Summary

Problems solved by technology

[0004] In previous drop tests, constantan wires could be used to directly hang the droplet models with small dimensions on the aircraft model; however, for larger droplet models (such as torpedoes), due to the aerodynamic The load is large, and it is difficult to maintain the initial posture of the drop model by directly attaching it, or even cannot attach it, and thickening the constantan wire will affect its fusing characteristics

This brings many problems to the launch test, such as: inaccurate test accuracy, low test efficiency and unsafe test, which is extremely risky

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