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An electromagnet suspension delivery device for hypersonic wind tunnel model free flight test

A hypersonic, delivery device technology, applied in measurement devices, aerodynamic tests, and testing of machine/structural components, etc., can solve problems such as difficulty in eliminating, influence of test results, and obvious interference of support systems, so as to ensure safety, The effect of reasonable strength design of support structure

Active Publication Date: 2021-09-21
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

When the model is constrained, the interference generated by the support system is obvious and difficult to eliminate, which has a great impact on the test results

Method used

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  • An electromagnet suspension delivery device for hypersonic wind tunnel model free flight test
  • An electromagnet suspension delivery device for hypersonic wind tunnel model free flight test
  • An electromagnet suspension delivery device for hypersonic wind tunnel model free flight test

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Experimental program
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Embodiment 1

[0048] The working process of this embodiment is as follows:

[0049] a. the electromagnet suspension throwing device for hypersonic wind tunnel model free flight test of the present invention is fixed on the upper angle-of-attack mechanism of the hypersonic wind tunnel test section angle-of-attack mechanism by installing the upper end of support plate 1;

[0050] b. Power on the adsorption electromagnet 3, adsorb the model 4 on the model adaptation interface 302 of the adsorption electromagnet 3, adjust the position of the model 4, measure and ensure that the axial position of the model 4 is accurate;

[0051] c. Hold the handle at the bottom of the model rack, lift the model 4 from bottom to top, and place the model 4 in the inner conical surface of the inner cavity of the model rack. On the interface 302, measure and ensure that the axial position of the model 4 is accurate, and the adsorption electromagnet 3 is powered off;

[0052] d. In the preparation process of the hy...

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Abstract

The invention discloses an electromagnet suspension delivery device used for a free flight test of a hypersonic wind tunnel model. The device includes an installation support plate, an installation base, and an adsorption electromagnet that are sequentially connected from top to bottom. The suction model also includes a driver fixed on the mounting support plate, a model fixing device fixed on the installation base, and the driver controls the model fixing device to clamp or release the model. When preparing for the test, turn off the power supply of the adsorption electromagnet, and the model fixing device clamps and fixes the model; before the test, turn on the power supply of the adsorption electromagnet, retract the model fixing device, and the adsorption electromagnet absorbs and fixes the model; during the test, the adsorption electromagnet Power-off release model. The device is compact in structure, reasonable in layout, good in stability and high in reliability, and can meet the requirements of rapid release of models in the free flight test of hypersonic wind tunnel models.

Description

technical field [0001] The invention belongs to the technical field of hypersonic wind tunnel model free flight test, and in particular relates to an electromagnet suspension delivery device used for hypersonic wind tunnel model free flight test. Background technique [0002] With the expansion of the flight envelope of modern fighter jets and missiles, the nonlinear flow phenomena that appear during maneuvering at high angles of attack and with sideslips will have a strong impact on the dynamic stability of the aircraft. To predict the dynamic characteristics of the aircraft, it is necessary to establish a dynamic model of the aircraft and obtain the dynamic stability derivative, which is an important prerequisite and basis for effective aircraft control system design, flight quality evaluation and ground simulation. [0003] The dynamic stability research of aircraft mainly relies on flight test and wind tunnel simulation test at present. The wind tunnel test methods for ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M9/02G01M9/04G01M9/08
CPCG01M9/02G01M9/04G01M9/08
Inventor 何超谢飞许晓斌舒海峰张德炜吴友生唐友霖
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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