Test device capable of evenly applying axial compression load and shearing load

Abstract

The invention belongs to the technical field of strength tests in aviation, and particularly relates to a test device capable of evenly applying an axial compression load and a shearing load. The test device comprises a shearing load applying component 1, an axial compression load applying component 2, a lower platform component 3 and a rib-adding flat plate component 4. According to the technology for independently loading the compression load and the shearing load, adopted by the device, the device not only is suitable for the flat plate, but also is suitable for a rib-adding flat plate. Furthermore, the test debugging of the single axial compression load and the single shearing load under the condition that the rib-adding flat plate is invariable in an installing posture can be realized, so that the reference can be provided for the analysis of the stress state of a lower wall plate under the joint action of the compression load and the shearing load. The device applies shearing force by the self-balance principle of a whole frame and a 'load balancer', so that the shearing force can be evenly applied, the axial rigidity of the rib-adding flat plate can not be enhanced due to an adopted segmental shearing reinforcement block, a compression load applying effect can not be influenced, and a 'side frame effect' can be avoided.

Description

technical field

[0001] The invention belongs to the technical field of aviation strength testing, in particular to a testing device capable of uniformly applying axial compression and shearing loads. Background technique

[0002] Flat plates and stiffened flat plates are typical stressed members in structures such as aerospace vehicles and surface warships. Most of them are in the state of compression and shear composite stress. It is a very important research topic, especially for the research on the stability and strength of the reinforced thin-walled structures that are mostly used in modern aircraft under complex loads. Therefore, it is urgent to realize the loading of such composite loads in the laboratory, so that the designed structure Verifying the stability and strength of the components can also provide a basis for future structural optimization and improvement.

[0003] In the past, it was difficult to achieve combined compression-shear loading for this kind of s...

Examples

Embodiment Construction

[0030] Below in conjunction with accompanying drawing the present invention is described in further detail, please refer to Figure 1 to Figure 15 .

[0031] A test device capable of uniformly applying axial compressive loads and shear loads, such as figure 1 As shown, it includes a shear load application assembly 1 , an axial compression load application assembly 2 , a lower platform assembly 3 and a stiffened plate assembly 4 .

[0032] Such as figure 2 As shown, the shear load application assembly 1 includes a rotating platform 101, a left column assembly 102 and a right column assembly 103 fixed on the rotating platform 101, an upper beam 104, and a leveling device fixed on the rotating platform 101 105, the rotating platform 101 is connected with the lower platform assembly 3 through the large rotating shaft 301;

[0033] Such as image 3 , Figure 4 As shown, in order to make the layout of the internal structure clearly visible, part of the structure of the left co...

technical field

[0001] The invention belongs to the technical field of aviation strength testing, in particular to a testing device capable of uniformly applying axial compression and shearing loads. Background technique

[0002] Flat plates and stiffened flat plates are typical stressed members in structures such as aerospace vehicles and surface warships. Most of them are in the state of compression and shear composite stress. It is a very important research topic, especially for the research on the stability and strength of the reinforced thin-walled structures that are mostly used in modern aircraft under complex loads. Therefore, it is urgent to realize the loading of such composite loads in the laboratory, so that the designed structure Verifying the stability and strength of the components can also provide a basis for future structural optimization and improvement.

[0003] In the past, it was difficult to achieve combined compression-shear loading for this kind of s...

Examples

Embodiment Construction

[0030] Below in conjunction with accompanying drawing the present invention is described in further detail, please refer to Figure 1 to Figure 15 .

[0031] A test device capable of uniformly applying axial compressive loads and shear loads, such as figure 1 As shown, it includes a shear load application assembly 1 , an axial compression load application assembly 2 , a lower platform assembly 3 and a stiffened plate assembly 4 .

[0032] Such as figure 2 As shown, the shear load application assembly 1 includes a rotating platform 101, a left column assembly 102 and a right column assembly 103 fixed on the rotating platform 101, an upper beam 104, and a leveling device fixed on the rotating platform 101 105, the rotating platform 101 is connected with the lower platform assembly 3 through the large rotating shaft 301;

[0033] Such as image 3 , Figure 4 As shown, in order to make the layout of the internal structure clearly visible, part of the structure of the left co...

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