Three-way adjustable test loading system

Abstract

The invention provides a three-direction adjustable test loading system. The three-direction adjustable test loading system comprises a test piece, a gravity balance system, a follow-up loading system and a bearing ground rail, a test piece is mounted on the bearing ground rail; the gravity balance system comprises an air bag and a bending-shear-compression coupling loading tool and is arranged at the top of the test piece, and the air bag is used for balancing the gravity of the gravity balance system; the follow-up loading system comprises a lateral force bearing column, an adjustable loading system and a loading piece; the lateral force bearing column is arranged in the loading direction of the test piece; the load of the loading piece is transmitted to the bending-shearing-pressing coupling loading tool through the adjustable loading system; the adjustable loading system is installed on the lateral force bearing column, and the position and the height of the adjustable loading system are determined through the position of a loading point of the bending-shear-compression coupling loading tool. According to the invention, through the high-rigidity characteristic of the bearing ground rail and the lateral bearing column, distributed loads in the height direction of the test piece are concentrated at the top for loading, so that follow-up adjustment of the loading direction of the loads is facilitated, and the test loading precision is improved.

Description

technical field [0001] The invention relates to the technical field of test piece strength test, in particular to a three-direction adjustable test loading system. Background technique [0002] The flexible extension mechanism of the solar wing needs to be assessed in the fully deployed state. The fully deployed state is as high as 14 meters. The top of the mechanism needs to be subjected to bending, shearing and compression loads at the same time. When the mechanism bears the full load, its top deformation can reach a maximum of 1 meter, and the load direction needs to follow the deformation of the specimen. The working environment of the solar wing flexible extension mechanism is the space microgravity environment, and the environment needs to be simulated in the static test assessment. [0003] There is a Chinese patent with publication number CN214749429U, which discloses a multi-directional adjustable triaxial loading assembled test device, which relates to the technic...

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Problems solved by technology

[0004] The inventor believes that there is a lack of test systems for simulating the environment in the prior art, and it is necessary to provide a reasonable system structure

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