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A high-stiffness embedded device for multi-body separation test in hypersonic wind tunnel

An embedded device and multi-body separation technology, which is applied in the direction of measuring device, aerodynamic test, machine/structural component test, etc., can solve the problems of high motion precision, difficult high rigidity, six degrees of freedom are not completely independent, etc. problem, to achieve the effect of space reuse, increase stiffness and bearing capacity, and reduce wind tunnel blockage

Active Publication Date: 2018-06-29
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

This type of device has a relatively small degree of blockage and can be located in the wind tunnel test section, but the six degrees of freedom of the second type of device are not completely independent, and it is difficult to achieve high stiffness and high motion accuracy

Method used

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  • A high-stiffness embedded device for multi-body separation test in hypersonic wind tunnel
  • A high-stiffness embedded device for multi-body separation test in hypersonic wind tunnel
  • A high-stiffness embedded device for multi-body separation test in hypersonic wind tunnel

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Embodiment Construction

[0032] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0033] Such as Figure 1-7 As shown, the structure of the high-rigidity embedded device adopts a parallel-series hybrid connection, in which X-direction movement, Z-direction movement and β The movement is realized by a three-degree-of-freedom parallel platform 1, Y-direction movement, α sports and gamma The movements are realized by independent mechanisms; the three-degree-of-freedom parallel platform 1 and the three independent mechanisms are connected in series through embedded integration, and a high-rigidity embedded device for multi-body separation tests in a hypersonic wind tunnel can be obtained.

[0034] The first layer is a three-degree-of-freedom parallel platform 1, which realizes X-direction, Z-direction and β Attitude adjustment in three degrees of freedom. The Y-direction mechanism 2 is connected to the parallel motion platform 17 of the th...

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Abstract

The invention provides a high-rigidness embedded device for a multi-body separation test of a hypersonic wind tunnel, and the device comprises X-axis, Y-axis and Z-axis linear movement and beta, alpha and gamma angular displacement movement. The X-axis and Z-axis and beta movement is implemented through a three-freedom-degree parallel platform, and the Y-axis, alpha and gamma movement is implemented through an independent mechanism. The three-freedom-degree parallel platform, a Y-axis mechanism and an alpha mechanism are stacked through a box body, and are in nested connection from the outside to the inside. A gamma mechanism is fixedly connected with the alpha mechanism through a bent blade, and is independently disposed in a wind tunnel flow field. The three-freedom-degree parallel platform comprises an X-axis moving parallel substrate and a Z-axis moving parallel movement platform, and the X-axis moving parallel substrate and the Z-axis moving parallel movement platform are connected with each other through four rotating sliding blocks. Two groups of X-axis and Y-axis drive assemblies are controlled independently, thereby achieving the X-axis, Z-axis and beta movement and a multi-freedom-degree coupling movement. The device is compact in structure, is good in rigidness, achieves the reuse of a space, can achieve the high-speed, high-precision and high-bearing-capability six-freedom-degree movement in a limited space.

Description

technical field [0001] The invention belongs to the technical field of hypersonic wind tunnel tests, and in particular relates to a high-rigidity embedded device used for multi-body separation tests in hypersonic wind tunnels. Background technique [0002] The hypersonic wind tunnel multi-body separation test is a simulation test of the safety separation characteristics and aerodynamic characteristics between the main body and the separation body of various hypersonic aircraft in the hypersonic wind tunnel. To carry out the multi-body separation test in a wind tunnel, a set of separated body model devices installed inside the wind tunnel and controlled by a computer are required to support the separated body test model and provide six degrees of freedom (axial X, normal Y, side Z, pitch α ,yaw β and roll gamma ) attitude adjustment function. In order to meet the requirements of the multi-body separation test, the separation body model device needs to have a large range o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M9/04
CPCG01M9/04
Inventor 王雄谢志江林敬周朱涛皮阳军马晓宇孙启志许晓斌陈超张德炜杨波解福田钟俊李杰毛冰滟吕超
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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