Six-degrees-of-freedom system of big load model track capturing test of large transonic speed wind tunnel

A transonic technology with degrees of freedom, applied in the field of aero aerodynamic wind tunnels, can solve the problems of poor bearing capacity, small stroke, poor stiffness, etc., to achieve the effect of improving bearing capacity and stiffness, and reducing installation space

Pending Publication Date: 2018-03-30
AVIC SHENYANG AERODYNAMICS RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Based on the above deficiencies, the purpose of the present invention is to provide a six-degree-of-freedom system for large-scale transonic wind tunnel large-load model capture trajectory test, which solves the problems of the existing six-degree-of-freedom mechanism with small travel, poor bearing capacity and poor stiffness

Method used

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  • Six-degrees-of-freedom system of big load model track capturing test of large transonic speed wind tunnel
  • Six-degrees-of-freedom system of big load model track capturing test of large transonic speed wind tunnel
  • Six-degrees-of-freedom system of big load model track capturing test of large transonic speed wind tunnel

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Embodiment 1

[0028] Such as figure 1 As shown, a six-degree-of-freedom system for a large-scale transonic wind tunnel large-load model capture trajectory test includes a lateral movement mechanism 1, a normal movement mechanism 2, an axial movement mechanism 3, and a three-degree-of-freedom attitude movement mechanism 4. The lateral movement mechanism 1 is installed on the leeward surface of the upper and lower wall panels of the test section, the normal movement mechanism 2 is installed on the transverse movement mechanism 1, the axial movement mechanism 3 is installed on the normal movement mechanism 2, and the three-degree-of-freedom attitude movement The mechanism 4 is installed on the axial movement mechanism 3;

[0029] Such as Figure 2-3 As shown, the lateral motion mechanism 1 includes a first lead screw 5, a lateral linear guide rail 6, a first reducer 7, and a first servo motor 8, and the lateral linear guide rail 6 is installed on the leeward side base of the upper and lower w...

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Abstract

The invention provides a six-degrees-of-freedom system of big load model track capturing test of a large transonic speed wind tunnel, which comprises a cross movement mechanism, a normal movement mechanism, an axial movement mechanism and a three-degrees-of-freedom gesture movement mechanism. The system solves the problems of small route, low bearing ability and poor rigidity of the six-degrees-of-freedom system in the track capturing test. The cross movement mechanism is installed on leeside of upper and lower wall panels of the testing section, the normal movement mechanism is installed on the cross movement mechanism; the axial movement mechanism is installed on the normal movement mechanism, and three-degrees-of-freedom gesture movement mechanism is installed on the axial movement mechanism; the three-degrees-of-freedom gesture movement mechanism can achieve pitching, yawing and rolling movements at the tail end of the mechanism through the rolling, pitching and rotating movements.The first grade rotating mechanism is connected with the axial movement mechanism, and orderly equipped with the pitching mechanism and the second grade rotating mechanism in series. The six-degrees-of-freedom system has big movement route, high bearing ability and rigidity, high movement precision and small blockage.

Description

technical field [0001] The invention belongs to the field of aeronautical aerodynamic wind tunnels, and in particular relates to a six-degree-of-freedom system for large-scale transonic wind tunnels and large-load model capture trajectory tests. Background technique [0002] The capture trajectory test is a special wind tunnel test to study the safety characteristics of the separation of the external store and the carrier aircraft. Specifically, it is a test device for simulating the separation state of the external store and the carrier aircraft in the high-speed wind tunnel test. Among them, the six-degree-of-freedom mechanism is the support device and motion execution device for the external objects in the capture trajectory test system, and is the core part of the whole system. The six-degree-of-freedom mechanism is controlled by a computer, and provides six degrees of freedom (axial X, lateral Y, normal Z, pitch α, yaw β, roll γ) motion for the store model. The movemen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M9/00
CPCG01M9/00
Inventor 鲁文博张楠王峰王志强
Owner AVIC SHENYANG AERODYNAMICS RES INST
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