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Model attack angle mechanism

An angle-of-attack mechanism and model technology, applied in the field of wind tunnel testing, can solve problems such as unsolved shortcomings, and achieve the effects of convenient operation and maintenance, improved accuracy, and simple and compact structure

Inactive Publication Date: 2015-12-16
LOW SPEED AERODYNAMIC INST OF CHINESE AERODYNAMIC RES & DEV CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the actual wind tunnel test process of the mechanism in this public document, the entire support mechanism still needs to be placed in the wind tunnel test area. From a substantive point of view, it does not solve the shortcomings of the traditional support method

Method used

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Embodiment Construction

[0033] The present invention will be further described now in conjunction with accompanying drawing.

[0034] The angle of attack mechanism of the present invention mainly includes two parts, one is a fixed structure part, and the other is a movable structure part on the fixed structure, and the final effect is realized through the movement of the movable structure.

[0035] Such as figure 2 As shown, the movable structure of the present invention mainly includes two parts, one part is the driving connection part, which is composed of a connecting plate, a driving mechanism, a gear, an upper slider, a lower slider and a positioning device. Machine composition. The driving mechanism is installed on one side of the connecting plate, and a gear is set on the other side of the connecting plate. The power input of the gear is provided by the servo drive motor and the reducer; the upper guide rail slider is set above the gear, and the gear is set below the gear. There is a lower ...

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Abstract

The invention discloses a model attack angle mechanism, comprising a lower supporting seat and an upper supporting seat arranged on the lower supporting seat; two arc guide rails are parallelly arranged on a same vertical plane of the upper supporting seat, and an arc tooth bar is arranged therebetween; a coupling mechanism moves along the arc guide rails under the effect of a driving mechanism so as to drive a tested model to continuously change an attack angle in a wind tunnel. According to the invention, in a wind tunnel test, a whole support body does not need to be arranged in a wind tunnel experimental area, and only the tested model, a tail pole and partial pre-bended pole are reserved in the wind tunnel experimental area, thereby minimizing the support mechanism influence to a wind tunnel flow field, and improving test precision; in addition, a supporting device is not in contact with wind tunnel walls, thereby reducing the supporting device influence to the wind tunnel flow field.

Description

technical field [0001] The invention relates to the field of wind tunnel tests, in particular to a model angle of attack mechanism. Background technique [0002] To conduct a wind tunnel model test, it is necessary to use a support system to support the model in the wind tunnel to realize the transformation and control of the attitude angle of the model. line support etc. No matter what support method is used, the model angle of attack mechanism is the focus and difficulty in the development of the model support device. During the test, the existing support method needs to set the support mechanism in the wind tunnel test area and fix it in the wind tunnel. on the inner wall. The support device will affect the flow field in the test area, and because it is directly connected to the cave wall, it will cause mutual influence between the cave wall and the device due to vibration. [0003] On the basis of the existing support methods, the Air Force Engineering University of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M9/04
Inventor 张德久朱本华姜裕标姜德龙梁频沈志洪耿子海杨强岳廷瑞王大伟金启刚唐乔乔阎丽
Owner LOW SPEED AERODYNAMIC INST OF CHINESE AERODYNAMIC RES & DEV CENT
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