Auxiliary device for fatigue testing machine

A fatigue testing machine and auxiliary device technology, applied in the direction of measuring devices, using applied repetitive force/pulsation force to test material strength, instruments, etc., can solve problems such as overestimating the fatigue performance of structures and components, accidental failure of structures, and insufficient design calculations

Pending Publication Date: 2021-04-20
CCCC THIRD HARBOR ENG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, in the existing research, due to concerns about the corrosion of the fatigue testing machine itself and the limitation of the test site, the influence of seawater cannot be considered in the fatigue test of the structure or component, which may lead to overestimation of the structure and component in the marine environment. Fatigue performance, leading to insufficiency in design calculations, and in severe cases, unexpected failure of the structure

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  • Auxiliary device for fatigue testing machine
  • Auxiliary device for fatigue testing machine
  • Auxiliary device for fatigue testing machine

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Embodiment Construction

[0039] The present invention will be further described below in conjunction with the accompanying drawings.

[0040] see Figure 1 to Figure 6 , the figure shows the auxiliary device for fatigue testing machine of the present invention, the fatigue testing machine (not shown in the figure) is provided with the upper chuck 7 of the testing machine and the lower chuck 8 of the testing machine, and the lower chuck 8 of the testing machine is located on the testing machine Directly below the chuck 7, the test piece 1 is arranged on the auxiliary device, and the auxiliary device includes:

[0041] a bottom tank 2;

[0042] A water suction pipe 3, one end of the water suction pipe 3 is located in the bottom water tank 2, and one end of the water suction pipe 3 is connected to a water pump 301 located in the bottom water tank 2;

[0043] A top water tank 4, the top water tank 4 is higher than the bottom water tank 2, and the other end of the suction pipe 3 is located in the top wat...

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Abstract

The invention discloses an auxiliary device for a fatigue testing machine. The auxiliary device comprises a bottom water tank, and a water suction pipe, and one end of the water suction pipe is connected with a water pump; the auxiliary device further comprises a top water tank, and the other end of the water suction pipe is positioned in the top water tank; the auxiliary device further comprises a water return pipe, one end of the water return pipe is connected with the top of the top water tank, and the other end of the water return pipe is located in the bottom water tank; the auxiliary device further comprises an irrigation water pipe, one end of the irrigation water pipe is connected with the bottom of the top water tank, and a plurality of irrigation heads communicated with the irrigation water pipe are arranged on the irrigation water pipe; and the auxiliary device further comprises an installation assembly which is installed on the lower chuck of the testing machine, the bottom end of a to-be-tested piece is installed on the installation assembly, and the top end of the to-be-tested piece is connected with the upper chuck of the testing machine. Seawater flows through the to-be-tested piece, the fatigue testing machine is prevented from being rusted during fatigue performance testing, the application range is wide, and field limitation is avoided.

Description

technical field [0001] The invention relates to an auxiliary device for a fatigue testing machine. Background technique [0002] All kinds of structures in the marine environment will be subjected to repeated wind and wave loads, and fatigue performance is often the key factor controlling the life of structures in the ocean. Therefore, it is often necessary to evaluate the fatigue performance of structural components of structures. Fatigue test has always been an important means to detect the fatigue performance of structures and components. Generally, the structure or component is placed on a fatigue testing machine, and repeated fatigue loads are applied to the component or structure through the fatigue testing machine. Most of the existing fatigue tests can only be carried out in the air environment, and cannot consider the influence of water currents that are ubiquitous in the marine environment. [0003] Studies have shown that for steel structures, seawater may enter ...

Claims

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Application Information

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IPC IPC(8): G01N3/32G01N3/02G01N17/00
Inventor 王衔王炜霞富坤
Owner CCCC THIRD HARBOR ENG
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