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Hinge static strength test clamping device and system

A clamping device and static strength technology, which is applied in the field of iron and steel metallurgy, can solve the problems of interfering with new materials, new processes, new structure analysis and judgment, and affecting the load-displacement relationship. Effect

Pending Publication Date: 2022-06-28
BEIJING AERONAUTIC SCI & TECH RES INST OF COMAC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the loading characteristics of the hinge, the fasteners at the bottom plate far away from the lugs will be subjected to a large tensile force, which will affect the load-displacement relationship, which will seriously interfere with a new material, new process, new Analysis and Judgment of Structure

Method used

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  • Hinge static strength test clamping device and system
  • Hinge static strength test clamping device and system
  • Hinge static strength test clamping device and system

Examples

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Effect test

Embodiment 1

[0052] The invention is used for the verification of the hinge bearing capacity test and the static strength analysis method, and can ensure the reasonable load transmission of the test piece and prevent the analysis method from being interfered by the displacement error of the connection part. In the present invention, the loading end clamp 1 , the base support 2 , the clamping plate 3 , and the components are mechanically connected to form an assembly relationship. The loading end fixture 1 is loaded through a dowel bar through the connecting hole of the test piece 4, and the fixture 1 at the loading end is designed to load the dowel bar with downward force. The upper end of the loading end fixture 1 is connected to the loading testing machine 5, and the lower end is designed with a U-shaped groove to load the screw.

[0053] The base support 2 has sufficient rigidity, the thickness of the upper and lower connecting surfaces is designed to be 25mm, and the thickness of the l...

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Abstract

The invention provides a hinge static strength test clamping device and system.The hinge static strength test clamping device comprises a clamp arranged in the load working condition direction of a test piece, the clamp is used for transmitting a vertically-downward load of a testing machine, one end of the loading end clamp is connected with the loading end of the test piece, and the other end of the loading end clamp is connected with the testing machine; the base support is provided with a first fixing point and a second fixing point, the first fixing point is close to the loading end, the second fixing point is far away from the loading end, and the non-loading end of the test piece is jointly fixed through the first fixing point and the second fixing point; the test device is used for verifying a hinge bearing capacity test and static strength analysis method, it can be guaranteed that the test piece is reasonable in load transfer, and the analysis method is prevented from being disturbed by displacement errors of a connection part.

Description

【Technical field】 [0001] The invention relates to the technical field of iron and steel metallurgy, in particular to a hinge static strength test clamping device and system. 【Background technique】 [0002] The hinge is a typical part form in the field of aircraft design, which is generally composed of structural features such as ears, gooseneck webs and bases. The load is transferred from the lugs to the base by the gooseneck web, and then to the fuselage through the fasteners of the base. Hinges are often used to connect structures such as aircraft doors and hoods. [0003] The traditional hinge is formed by machining or casting. Due to the influence of the manufacturing process, the material and configuration of the hinge are not completely in the direction of its force, so the weight is heavy. With the development of new aviation technologies and new materials, there are more and more forming methods of hinges. Additive manufacturing is favored by aerospace structural d...

Claims

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Application Information

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IPC IPC(8): G01N3/04
CPCG01N3/04
Inventor 刘卫王裕刘建光张金玲
Owner BEIJING AERONAUTIC SCI & TECH RES INST OF COMAC
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