Wind tunnel separation simulation experiment system and method

A technology for simulating experiments and separating body models, which is applied in the field of external load model separation process measurement and simulation experiment systems, and can solve problems such as difficult application of separation occasions and no ability to measure separation processes.

Inactive Publication Date: 2014-12-03
DALIAN UNIV OF TECH
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  • Application Information

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Problems solved by technology

These two schemes can successfully separate the external load, but it is difficult to apply to the current separation occasio

Method used

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  • Wind tunnel separation simulation experiment system and method
  • Wind tunnel separation simulation experiment system and method
  • Wind tunnel separation simulation experiment system and method

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Embodiment Construction

[0022] The specific embodiments of the present invention will be described in detail below in conjunction with the technical solutions and accompanying drawings. attached figure 1 It is the schematic diagram of the wind tunnel separation simulation experiment system. The present invention adopts the joint action of the explosive bolt 1 and the mechanical concentric slide rail device 3 to fasten the separation body. During the experiment, the explosive separation of the explosive section of the explosion bolt releases the movement restriction and triggers the separation action of the separation body, and the auxiliary thrower cooperates with the mechanical concentric slide rail device to control the separation. During the body separation movement process, the visual device and the explosive bolt are triggered synchronously to measure the separation moment and post-separation motion of the separation body, and finally complete the wind tunnel separation simulation experiment.

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Abstract

The invention discloses a wind tunnel separation simulation experiment system, belongs to the technical field of wind tunnel experiments, and relates to a simulation experiment system suitable for measuring the separation process of an external carried object model in the wind tunnel environment. According to the simulation experiment system, an explosive bolt is matched with a mechanical concentric sliding rail device, acting force is exerted through a feeding assistant device to complete separation between an external carried object and a master, and the separation process is measured through a high-speed visual device. By means of the wind tunnel separation simulation experiment system, the explosive bolt is matched with the mechanical concentric sliding rail device, it is guaranteed that a wind tunnel separation body model separation system is safe and reliable, the high bearing capacity and the rapid triggering capacity are achieved, the feeding assistant device is introduced to exert the adjustable feeding force to the model, the separation initial angle, the separation angle, the separation speed and the separation angular speed of the wind tunnel separation model are controlled, high consistency of the separation model separation process and the true machine separation process is guaranteed, and the whole separation process parameter measurement requirement is met due to the fact that the binocular high-speed visual device has the advantages of being high in accuracy, high in frequency response and the like.

Description

technical field [0001] The invention belongs to the technical field of wind tunnel experiments, and relates to a simulation experiment system and method suitable for measuring the separation process of an external load model in a wind tunnel environment. Background technique [0002] The aircraft is flying at high speed, and there is a multi-body interference phenomenon, that is, the external load or the mutual aerodynamic interference between the load and the carrier aircraft. Under certain circumstances, the external load or load needs to be separated from the carrier aircraft. Since they are very close to each other, the separation time is extremely short during high-speed flight, and the relative motion between the separate bodies changes sharply, and the aerodynamic coupling will be more severe. It is very easy to cause motion interference and collision between separated bodies, resulting in serious consequences. Therefore, it is a necessary step to ensure the safety o...

Claims

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Application Information

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IPC IPC(8): G01M9/02G01M9/04
Inventor 刘巍尚志亮贾振元马鑫李肖王争取鲁文博
Owner DALIAN UNIV OF TECH
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