Rail control jet interference test device based on rod balance and its installation and positioning method

A test device and jet flow technology, which is applied in the direction of measuring device, aerodynamic test, machine/structural component test, etc., to achieve the effect of improving installation positioning accuracy, improving test efficiency and reducing workload

Active Publication Date: 2022-04-12
中国空气动力研究与发展中心超高速空气动力研究所
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using this design will cause a certain distance between the center of pressure of the model and the design center of the balance, which is contradictory to the principle that the center of pressure of the balance and the center of pressure of the model are basically consistent in the aerodynamic measurement test

Method used

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  • Rail control jet interference test device based on rod balance and its installation and positioning method
  • Rail control jet interference test device based on rod balance and its installation and positioning method
  • Rail control jet interference test device based on rod balance and its installation and positioning method

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Experimental program
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Effect test

Embodiment 1

[0043] Such as figure 1 , figure 2 As shown, a rod balance 10 is installed on the central axis of the model 15 of the rod balance-based orbit control jet interference test device of the present invention to measure aerodynamic force, and the rod balance 10 and the model 15 are matched by a taper surface and a balance The tightening nut 12 is fixedly connected, and the rod balance 10 is fixed on the middle bracket of the hypersonic wind tunnel through the tail rod 5; The ring of chamber 1 is arranged around the rod balance 10, and there are annular gaps between the jet flow chamber 1 and the rod balance 10, and between the jet chamber 1 and the inner wall of the model 15; The chassis 3 and the jet flow chamber 1 are fixed on the fixed chassis 3 through the adjusting screw 2 uniformly distributed along the circumferential direction, and the adjustment screw 2 is adjusted so that the jet flow chamber 1 moves forward or backward along the central axis; the jet flow chamber 1 pas...

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PUM

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Abstract

The invention discloses a rail-controlled jet flow interference test device based on a rod-type balance and an installation and positioning method thereof. A rod balance is installed on the central axis of the model of the orbit control jet interference test device to measure the aerodynamic force. The inner cavity is equipped with a jet flow chamber that is arranged around the circumference of the rod balance, and there is an annular gap between the jet flow chamber, the rod balance and the inner wall of the model; the jet flow chamber is fixed on the tail branch through an adjusting screw. On the fixed chassis of the rod, adjust the adjusting screw, and the jet flow chamber moves forward or backward along the central axis; the vent pipe of the jet flow chamber is externally connected to a high-pressure air source. This installation and positioning method uses a rod-type balance to solve the problem of inconsistency between the center of the balance and the position of the pressure center in the hypersonic wind tunnel orbit control jet interference test; it reduces the workload of nozzle installation and positioning, improves the positioning accuracy, and improves the accuracy of the test. efficiency.

Description

technical field [0001] The invention belongs to the technical field of hypersonic wind tunnel tests, and relates to a rod-type balance-based rail-controlled jet interference test device and an installation and positioning method thereof. Background technique [0002] The compound control technology of lateral jet interference direct force control and aerodynamic force control of rudder surface is a commonly used control method for the prevention and control of anti-missile missiles. However, when jet direct force control is used, the aerodynamic characteristics of the aircraft will show strong nonlinearity and uncertainty due to the existence of jet interference, which will seriously affect the accuracy and response speed of the missile control system. At present, theoretical analysis, numerical simulation and hypersonic wind tunnel test methods are usually used to obtain the aerodynamic characteristics of the model under the condition of jet flow, and provide input paramete...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M9/04G01M9/08
CPCG01M9/04G01M9/08
Inventor 郭雷涛钟俊谢飞王佳明唐友霖崔炜栋
Owner 中国空气动力研究与发展中心超高速空气动力研究所
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