A Vibration Isolation Device for a Shock Wave Wind Tunnel Model

A shock tunnel and vibration isolation technology, applied in measuring devices, testing of machine/structural components, instruments, etc., can solve the problems of loose and broken bellows, failure of bellows to play a buffering role, and vibration isolation, etc. The effect of air tightness

Active Publication Date: 2020-03-17
INST OF MECHANICS CHINESE ACAD OF SCI
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Problems solved by technology

During the experiment, the wind tunnel will generate horizontal displacement and vibration due to the impact of the airflow, which will drive the top of the bellows to move in the horizontal direction. The bellows cannot play the role of buffering and vibration isolation. In severe cases, the bellows will loosen and rupture, affecting wind. The airtightness of the tunnel affects the credibility of the wind tunnel experimental data

Method used

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  • A Vibration Isolation Device for a Shock Wave Wind Tunnel Model
  • A Vibration Isolation Device for a Shock Wave Wind Tunnel Model

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Embodiment Construction

[0030] In order to illustrate the present invention more clearly, the present invention will be further described below in conjunction with preferred embodiments and accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. Those skilled in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not limit the protection scope of the present invention.

[0031] Such as figure 1 , in an embodiment of the present invention, a vibration isolation device for a shock tunnel model, including: a support base 6 detachably fixed on the ground, a support unit 4 and a seal sleeved on the outer surface of the support unit 4 Unit 5; the supporting unit 4 has a "Z" shape structure, and the shape of the sealing unit 5 is the same as that of the supporting unit 4; the pipe body of the sealing unit 5 parallel to the wind tunnel experimental cabin is a bellows or other flexible pipe body, a...

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Abstract

The invention discloses a vibration isolation device of a shock tunnel model. The vibration isolation device includes a support pedestal detachably fixed on the ground, a support unit and a sealing unit that sleeves the outer surface of the support unit; the support unit is of a Z-shaped structure, and the sealing unit and the support unit are the same in shape; the support unit includes a first support rod, a second support rod and a third support rod; and the sealing unit includes a first connecting pipe, a second connecting pipe and a third connecting pipe. The vibration isolation device provided by the invention solves the problem of vibration isolation of a wind tunnel experiment cabin and equipment in the cabin; and the third connecting pipe that sleeves the third support rod is a corrugated pie or a flexible pipe, the direction is parallel to that of the wind tunnel experiment cabin, and the air tightness of a whole system in a vibration or displacement process of the wind tunnel experiment cabin can be guaranteed.

Description

technical field [0001] The invention relates to the technical field of aerospace wind tunnel experimental equipment, in particular to a vibration isolation device for a shock wave wind tunnel model. Background technique [0002] Shock wave wind tunnel is an effective ground experimental equipment that can provide airflow at a certain speed, and is a basic research method in the field of aerospace. The wind tunnel uses the principle of relative motion to fix the aircraft model in the experimental cabin, and the airflow flows through the model at a specified speed to study the aerodynamic characteristics and phenomena of the aircraft. [0003] In order to avoid the damage to the local pipe structure and infrastructure support structure caused by the pulse impact generated when the shock wave wind tunnel is started, the main equipment of the wind tunnel (including the driving section, driven section, nozzle section, test section and vacuum tank) is usually set On the slidable ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M9/04F16M13/02
CPCF16M13/02G01M9/04
Inventor 韩桂来姜宗林
Owner INST OF MECHANICS CHINESE ACAD OF SCI
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