Vacuumizing loading equipment and test method thereof

Abstract

The invention belongs to an airtight loading technology and relates to airtight load test loading equipment and an airtight load test loading method for a reinforced wall plate of an airplane. Vacuumizing loading equipment comprises a rubber block, a sealing gasket, a supporting box and a sealing box, wherein the rubber block is adhered to a skin edge on one surface of a long girder of the wall plate and flushed with bosses at two ends of the wall plate; the sealing block is adhered to the rubber block and a floor beam; the supporting box is adhered to the inside of the rubber block; a fixing bolt which is used for fixing the supporting box is arranged at the top of the supporting box; the sealing box is in adhered connection with the rubber block and sleeve outside the supporting box; and a hole and an opening, which correspond to the supporting box, are reserved in the sealing box. The invention has the advantages that: during test of the supporting box, the skin of the wall plate cannot be deformed through isolation of the rubber block; because the own rigidity of the rubber block is quite low, requirements of only application of an airtight load without change of boundary conditions of the wall plate can be met; and the reliability and stability of loading test and the accuracy of a test result are guaranteed.

Description

technical field [0001] The invention belongs to the airtight load loading technology, and relates to an airtight load test loading device and a loading method for an aircraft reinforced wall panel. Background technique [0002] The aircraft load test is an important subject of the aircraft strength test, especially when testing the strength of the central wing of the aircraft, the load test must be carried out. see figure 1 , which is a schematic diagram of the prior art center wing upper panel structure and its loads. The central wing upper panel 100 of a certain type of civil aircraft includes a skin 101 , a long stringer 102 , a boss 103 and a floor beam 104 . Wherein, the skin 101 is arranged on the long girder 102, forming a wall plate structure, bearing the compression load 105 and the airtight load 106 of the passenger cabin, and the upper and lower sides thereof are respectively provided with bosses 103 and floor beams 104. Among them, the boss 103 ensures that th...

AI Technical Summary

Problems solved by technology

The technology of this test cannot meet the requirements of the compression stability test of the upper panel of the central wing because the vacuum box provides normal support for the boundary of the panel and the force is transmitted to the panel around the vacuum box.

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