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Flow adjusting mechanism of air inlet model

A flow regulation and air inlet technology, applied in the field of aerodynamic testing, can solve the problems of long adjustment period, high testing cost, low testing efficiency, etc., and achieve the effect of accurately determining performance, improving testing efficiency, and simplifying adjustment steps.

Pending Publication Date: 2018-03-23
AVIC SHENYANG AERODYNAMICS RES INST
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

At present, when the flow rate of the inlet test model is adjusted, it is necessary to manually adjust the throat area of ​​the model inlet, and only the performance parameters at a fixed flow rate can be measured, and continuous measurement cannot be performed.
It is difficult to accurately determine the performance parameters of the intake port
In addition, when manually adjusting the throat area of ​​the model inlet, it is necessary to stop the test, the adjustment steps are complicated, and the adjustment period is long, resulting in low test efficiency and high test cost

Method used

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  • Flow adjusting mechanism of air inlet model
  • Flow adjusting mechanism of air inlet model
  • Flow adjusting mechanism of air inlet model

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Embodiment Construction

[0015] The present invention will be described in further detail below. see figure 1 , 2 , an inlet model flow regulating mechanism, including an inlet model 1, the inlet model 1 includes an inlet front section 14 and an inlet rear section, and the inlet rear section includes an upper runner 1a and a lower runner 1b, The front section 14 of the intake duct is fixed on the housing of the intake duct model 1; it is characterized in that: there is a flow regulating device, which includes an electric cylinder unit, a lower splitter plate unit and a four-bar linkage;

[0016] The electric cylinder unit includes an electric cylinder 2 and a first movable hinge shaft 3; the electric cylinder 2 is fixed on the housing of the air inlet model 1, and the piston rod of the electric cylinder 2 faces the front section 14 of the air inlet;

[0017] The lower manifold unit includes a lower manifold 9, a lower manifold shaft 11, a speed reducer 12 and a motor 13; the output shaft of the moto...

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Abstract

The invention, which belongs to the field of the aviation aerodynamic test technology, relates to a flow adjusting mechanism of an air inlet model for a high-speed wind tunnel experiment. The flow adjusting mechanism is characterized in that a flow adjusting device is arranged and the flow adjusting device consists of an electric cylinder unit, a lower splitter plate unit and a four-connecting-barmechanism. With the flow adjusting mechanism, continuous adjustment of the flow in the air inlet model is realized; the flow parameter under the continuous throat area changing is obtained; and the performance of the air inlet is determined accurately. Besides, the adjusting steps are simplified; the adjusting period is shortened; the testing efficiency is improved; and the testing cost is lowered.

Description

technical field [0001] The invention belongs to the technical field of aviation aerodynamic tests, and relates to an inlet model flow regulating mechanism suitable for high-speed wind tunnel tests. Background technique [0002] With the development of science and technology, in the field of aircraft design, the aerodynamic shapes are becoming more and more diverse, and the functions are becoming more and more complete, which leads to the direction of aerodynamic research. necessary safeguards. The shape of the air intake of modern aircraft is complex, and it is necessary to determine the performance parameters of the air intake through experiments. At present, when the flow rate of the air inlet test model is adjusted, the throat area of ​​the air inlet of the model needs to be manually adjusted. Only the performance parameters at a fixed flow rate can be measured, and continuous measurement cannot be performed. It is difficult to accurately determine the performance param...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M9/04G01M9/06
CPCG01M9/04G01M9/065Y02T10/12
Inventor 刘畅赵文涛向先宏都鹏杰
Owner AVIC SHENYANG AERODYNAMICS RES INST
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