A Temporary Subtransonic Wind Tunnel Control System
A control system and temporary flushing technology, which is applied in the general control system, control/regulation system, program control, etc., can solve the problems of lack of high control precision, scattered control parts, and many types of signals, etc., to achieve convenient operation And observe the test situation, ensure reliability and real-time performance, and solve the effect of scattered control parts
Active Publication Date: 2021-04-13
CHINA ACAD OF AEROSPACE AERODYNAMICS
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Problems solved by technology
The manual adjustment of the wind tunnel flow field has the following disadvantages: the adjustment accuracy of the flow field is easily affected by the pressure fluctuation of the source airflow; the manual adjustment cannot achieve high control accuracy and takes too long, and the energy loss is large
In addition, the structure of the wind tunnel is complex, the control parts are scattered, the types and quantities of ground signals involved are large, and the reliability and real-time performance of signal transmission are high, all of which put forward high requirements for the establishment of a wind tunnel control system
Method used
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Embodiment Construction
[0034] Specific embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0035] like figure 1 The shown invention proposes a temporary subtransonic wind tunnel control system for controlling the temporary subtransonic wind tunnel. The structural composition of the temporary subtransonic wind tunnel is as follows: figure 2 As shown, it includes honeycomb 1, damping net 2, exhaust throttle 3, front chamber 4, nozzle 5, test section 6, supersonic diffusion section 7, suction ejector 8, subsonic diffusion section 9, 2 #Pressure regulating valve 10, bypass valve 11, 1# pressure regulating valve 12, starting valve 13, incremental injector (ie 2# injector) 14, main valve 15, air source 16, silencer tower 17.
[0036] The wind tunnel control system includes console master control computer, console simulation display computer, console operation display area, video monitoring computer, Ethernet switch, Mach number...
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The invention relates to a control system for a temporary sub-transonic wind tunnel, which includes a console master control computer, a console simulation display computer, a console operation display area, a video monitoring computer, an Ethernet switch, a Mach number monitoring computer system, a data Acquisition computer system, equipment management computer system, diffusion section control computer system, Ethernet switch, 2# valve drive unit, angle of attack mechanism drive unit, safety interlock PLC unit, 1# valve and 2# injector drive unit, diffusion section Drive unit, data acquisition unit. The present invention adopts a distributed layout, which is convenient for operators to operate and observe the test situation, and effectively solves the problems of scattered control parts, many types and large quantities of signals, and can well ensure the reliability and real-time performance of signal transmission; and each Ethernet communication is used between nodes, and the system nodes are not limited by geographical location, and can be easily expanded and moved.
Description
technical field [0001] The invention relates to a temporary subtransonic wind tunnel control system, which belongs to the technical field of subtransonic wind tunnels. Background technique [0002] The wind tunnel is the main equipment for aerodynamic tests. It is a special pipeline designed according to specific requirements. In this special pipeline, the power device is used to generate an adjustable airflow, so that the model flow field obtained in the test section can be simulated or Partial simulation of the prototype flow field. Wind tunnel flow field is a major indicator of wind tunnel performance. In the previous flow field control, the opening of the pressure regulating valve was manually adjusted by the operator to control the flow of compressed air entering the wind tunnel. The manual adjustment of the wind tunnel flow field has the following disadvantages: the adjustment accuracy of the flow field is easily affected by the pressure fluctuation of the source air...
Claims
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IPC IPC(8): G05B19/05G01M9/02
CPCG01M9/02G05B19/058G05B2219/14006
Inventor 张娜宋法振侯逸青刘书伟
Owner CHINA ACAD OF AEROSPACE AERODYNAMICS