Rod type balance-based orbit control jet flow interference test device and installing and positioning method thereof

A test device, jet flow technology, applied in the direction of measuring device, aerodynamic test, machine/structural component test, etc.

Active Publication Date: 2021-05-07
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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  • Summary
  • 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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  • Rod type balance-based orbit control jet flow interference test device and installing and positioning method thereof
  • Rod type balance-based orbit control jet flow interference test device and installing and positioning method thereof
  • Rod type balance-based orbit control jet flow interference test device and installing and positioning method thereof

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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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Abstract

The invention discloses a rod type balance-based orbit control jet flow interference test device and an installing and positioning method thereof. A rod type balance for measuring aerodynamic force is installed on the central axis of a model of the orbit control jet flow interference test device, and the rod type balance is fixedly connected with the model and fixed to a middle support of a hypersonic wind tunnel through a tail supporting rod; jet flow plenum chambers which are annularly distributed in the circumferential direction of the rod type balance are installed in the inner cavity of the model, and annular gaps are reserved between the jet flow plenum chambers and the rod type balance and between the jet flow plenum chambers and the inner wall of the model; the jet flow plenum chamber is fixed on a fixed chassis of the tail support rod through an adjusting screw rod, and the jet flow plenum chamber moves forwards or backwards along the central axis by adjusting the adjusting screw rod; and a ventilation pipeline of the jet plenum chamber is externally connected with a high-pressure air source. According to the installing and positioning method, the problem that the positions of the calibration center and the pressure center of the balance are inconsistent in the hypersonic wind tunnel orbit control jet interference test is solved by adopting the rod type balance; and the installation and positioning workload of the spray pipe is reduced, the positioning precision is improved, and the test efficiency is improved.

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 Applications(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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