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Ventilation support arm device applied to dual-throat thrust vector nozzle

A thrust vectoring, dual-throat technology, applied in the field of sub-span super wind tunnel aerodynamics, can solve the problems of inability to meet the requirements of air supply and support transfer, and achieve the effect of compact structure, high support strength and simple structure

Active Publication Date: 2018-12-28
CHINA ACAD OF AEROSPACE AERODYNAMICS
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the research on the thrust vector aerodynamic interference in the sub-span super wind tunnel of the domestic production type wind tunnel is generally based on the single-engine design, which cannot meet the air supply and support transfer requirements of the thrust vector wind tunnel test of the dual-engine four-generation aircraft at the same time

Method used

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  • Ventilation support arm device applied to dual-throat thrust vector nozzle
  • Ventilation support arm device applied to dual-throat thrust vector nozzle
  • Ventilation support arm device applied to dual-throat thrust vector nozzle

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Embodiment Construction

[0026] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0027] The invention provides a ventilating support arm device applied to a double-throat thrust vectoring nozzle, which realizes the collision-free passing of the air supply pipeline of the double-engine model of the double-throat thrust vectoring nozzle in the wind tunnel experiment and the connection to the model Support experiments.

[0028] Such as figure 1 Shown is a schematic diagram of the ventilation arm device, as can be seen from the figure, a ventilation arm device applied to a double-throat thrust vectoring nozzle, including an aircraft model 7, a ventilation arm 8, an air supply pipeline 9 and a strut 10; wherein, The strut 10 is a slender cube structure; the bottom end of the ventilating arm 8 is fixedly connected to the axial end of the strut 10; the aircraft model 7 is horizontally and fixedly installed on the top of the ventil...

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Abstract

The invention discloses a ventilation support arm device applied to a dual-throat thrust vector nozzle, and relates to the field of subsonic transonic and supersonic wind tunnel aerodynamics. The device comprises an aircraft model, a ventilation support arm, an air supply pipeline and a support rod, wherein the support rod adopts a slender cube structure; the bottom end of the ventilation supportarm is fixedly connected with the axial end of the support rod; the aircraft model is horizontally and fixedly installed at the top end of the ventilation support arm; the air supply pipeline is fixedly installed on the inner wall of the ventilation support arm; the ventilation support arm comprises a support arm main body and a connecting flange; the support arm main body adopts a hollow parallelogram plate-shaped structure; the connecting flange is fixedly installed at the top end of the support arm main body; and the ventilation support arm is fixedly connected with the aircraft model through the connecting flange. According to the device, collisionless passing of the air supply pipeline of a dual-engine model of the dual-throat thrust vector nozzle in a wind tunnel experiment and a connecting supporting experiment for the model are realized.

Description

technical field [0001] The invention relates to the field of aerodynamics of a sub-span super wind tunnel, in particular to a ventilation support arm device applied to a double-throat thrust vectoring nozzle. Background technique [0002] Jet disturbance is a typical complex flow phenomenon in hypersonic flow. The complex interference flow field formed by the high-temperature, high-speed jet generated by the tail nozzle of a supersonic vehicle and the flow around the vehicle directly affects the stability, maneuverability, lift, drag and other aerodynamic characteristics of the vehicle. Control characteristics, etc. have had a great impact. The influence of vector jet flow on the aerodynamic characteristics of the rear body of supersonic aircraft is more significant. Therefore, it is of great significance to study the influence of vector jet flow on the aerodynamic characteristics of aircraft. important means. [0003] The design of the ventilation support arm device conn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M9/00G01M9/08
CPCG01M9/00G01M9/08
Inventor 何敬玉陈强唐亚丽
Owner CHINA ACAD OF AEROSPACE AERODYNAMICS
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