Fuselage wall plate fatigue testing fixture

Abstract

The invention discloses a fixture for fatigue test of fuselage wall plate, which belongs to the field of aircraft fatigue test design. It includes a clamping section (1), a joint (2), and a corner box (3). The clamping section (1) is set on one end of the joint (2), and the other end of the joint (2) is connected with two corner boxes (3), said any corner box (3) comprises two vertical board surfaces, one of which is fixed on the joint (2), and the other board surfaces of the two corner boxes (3) are parallel to each other and leave There is clearance for clamping the test piece, the clamping width is adapted to the test piece size. The invention enables the fuselage panel test piece to obtain an ideal force transmission effect under the action of tension and compression loads, the damage form of the test piece is closer to reality, and the loading of different fuselage panel sizes can be realized by adjusting the size of the fixture.

Description

technical field [0001] The invention belongs to the field of aircraft fatigue test design, and in particular relates to a jig for fatigue test of fuselage wall plate. Background technique [0002] Fatigue tests are required for fuselage panels during model selection and repair. For the test piece with a large size, the actuator is generally used for loading, the test scale is large and the test cost is high. However, for the test piece of the wall plate with three girders and one frame position, the loading test of the actuator is complicated and expensive, and it can be directly loaded by a 10-50 ton fatigue testing machine. Due to the limited clamping width of the testing machine, the test piece cannot be clamped directly, so it is necessary to design a transfer fixture. Contents of the invention [0003] In order to solve the above problems, the present invention proposes a fuselage panel fatigue test fixture, which is especially suitable for the fatigue test of fusel...

AI Technical Summary

Problems solved by technology

For large-sized test pieces, the actuator is generally used to load, the test scale is large, and the test cost is high

For the test piece of the wall plate with three long trusses and one frame position, the loading test of the actuator is complicated and expensive, and it can be loaded directly with a 10-50 ton fatigue testing machine

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