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Time sequence control measuring device and method based on supersonic vortex structure

A timing control and supersonic technology, applied in the aerospace field, can solve the problems of inconsistent jet intensity and poor test repeatability

Inactive Publication Date: 2020-08-25
SHANGHAI JIAO TONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the problems of inconsistent jet intensity and poor test repeatability caused by the prior art, the present invention proposes a timing control measurement device and method based on a supersonic vortex structure, which can not only accurately control the generation of compressible vortex structures of different modes, but also accurately adjust It is of great significance and academic value for high-speed compressible aerodynamics, and it can also Provide experimental basis for engineering practice

Method used

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  • Time sequence control measuring device and method based on supersonic vortex structure
  • Time sequence control measuring device and method based on supersonic vortex structure
  • Time sequence control measuring device and method based on supersonic vortex structure

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Embodiment Construction

[0026] Such as figure 1 Shown is a generating device of a supersonic vortex structure related to this embodiment, including: a membrane breaking device, a supersonic vortex generating device and a measuring system.

[0027] The membrane rupture device includes: a solenoid valve 1, a single-acting cylinder 2, and a thimble 3 with a rectangular blade welded at the front end, wherein: the solenoid valve 1 is used to control the on-off of the gas circuit, and the source of the upstream gas circuit is provided by the gas source control panel. The downstream is connected to the single-acting cylinder 2, and the front end of the cylinder piston and the thimble 3 of the welded rectangular blade are fixed to each other by threads, and the solenoid valve 1 is controlled by a self-resetting button, and one click performs a membrane rupture action.

[0028] The thimble 3 is fixed on the piston rod by threading and applying thread glue, and cannot loosen or fall off during the expansion an...

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Abstract

The invention discloses a time sequence control measuring device and method based on a supersonic vortex structure. The device comprises a supersonic vortex generating device, and a measurement control system and a membrane rupturing device which are connected with the supersonic vortex generating device, wherein the membrane rupturing device is arranged at one end of the supersonic vortex generating device, the measurement control system is connected with the supersonic vortex generating device through a sensor to collect pressure signals and carry out image collection by taking the pressureas a triggering condition, and flow field information of supersonic vortexes at a specific moment is obtained by setting delay time of the control system. According to the method, compressible vortexstructures with different modes can be accurately controlled and generated, the pressure of the driving section is accurately adjusted, and the supersonic compressible vortex structure is rapidly andeffectively obtained.

Description

technical field [0001] The invention relates to a technology in the field of aerospace, in particular to a timing control measurement device and method based on a supersonic vortex structure. Background technique [0002] The research on supersonic vortex structure is of great value to the injection mixing form of scramjet engine and the exhaust injection design of vector engine. One of the important factors affecting the shape of the supersonic vortex structure is the jet intensity, which is mainly affected by the driving pressure, driving gas and membrane rupture process. Based on this, how to produce a controllable and pure compressible vortex ring is of great significance to the theoretical research and engineering practice of high-speed compressible aerodynamics. [0003] At present, when the existing technology is used to generate the supersonic vortex structure through the shock tube, the membrane rupture method of thimble piercing is mostly used, and the membrane is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M10/00
CPCG01M10/00
Inventor 向阳秦亮刘洪
Owner SHANGHAI JIAO TONG UNIV
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