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Structural static and fatigue test device

A fatigue test and static force technology, applied in the testing of machine/structural components, measuring devices, testing of mechanical components, etc., can solve the problems of bending and torsion limitations, affecting loading accuracy, assessment, etc., and achieve high loading accuracy and equipment. Small size and fast loading effect

Active Publication Date: 2019-11-05
AECC SHENYANG ENGINE RES INST
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Problems solved by technology

When using a material testing machine for centrifugal loading, its bending and torsion will be limited to a certain extent, which will affect its loading accuracy
On the other hand, because it is not a dedicated test device, there is a problem that only centrifugal force loads can be applied, but simulated aerodynamic loads cannot be applied (the aerodynamic loads are ignored or corrected to the centrifugal force loads), which cannot fully simulate the bearing load of the blade. Influence on the assessment of blade strength and life performance

Method used

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  • Structural static and fatigue test device
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  • Structural static and fatigue test device

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Embodiment Construction

[0038] In order to make the purpose, technical solution and advantages of the application more clear, the technical solution in the embodiment of the application will be described in more detail below in conjunction with the drawings in the embodiment of the application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the application. The embodiments described below by referring to the figures are exemplary, and are intended to explain the present application, and should not be construed as limiting the present application. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application. Embodiments of the present application will be described in detail below in conjunction with th...

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Abstract

The application belongs to the technical field of a static and fatigue test, and particularly relates to a structural static and fatigue test device. The structural static and fatigue test device includes a flexible constraint fixing component for fixing a test piece, an axial load loading component for performing load loading on the test piece in a vertical direction, and a transverse load loading component for performing load loading on the test piece in a horizontal direction. The structural static and fatigue test device adopts an internal force bearing mode. A bearing structure for supporting and constraint is designed as a structure flexible in the horizontal direction and rigid in the axial direction, axial load loading is achieved, and it is ensured that the structure has greater flexibility in the transverse direction. In addition, the direction of centrifugal force can generate self-adaptive deflection with the increase of pneumatic and centrifugal force load, and the accuracy of the centrifugal force in the loading direction is ensured. Furthermore, compared with a traditional method, the test device has the advantages of being high in loading speed, short in test period, small in equipment size and high in loading accuracy.

Description

technical field [0001] The application belongs to the technical field of static force and fatigue test, and in particular relates to a structural static force and fatigue test device. Background technique [0002] In structural static fatigue tests, there are often situations where multiple loads are applied to a structural member, especially for centrifugal force and aerodynamic loads on structures such as propeller hubs, blades, and engine blades. The same problem is that due to the limitations of the structural static and fatigue test equipment, it is impossible to simulate the self-adaptive deflection of the centrifugal force direction caused by the offset of the center of mass of the blade structure as the centrifugal force and aerodynamic load increase. In addition, the interference between the test loading devices of centrifugal force and aerodynamic load is an important factor affecting the accuracy of aerodynamic load loading. The main reason is that the centrifuga...

Claims

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Application Information

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IPC IPC(8): G01M13/00
CPCG01M13/00
Inventor 苏军王洪斌刘亮亮刘伟强田常棵王迪
Owner AECC SHENYANG ENGINE RES INST
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