Adjustable device for testing side pressure performance of honeycomb sandwich plate

Abstract

The invention provides an adjustable device for testing the side pressure performance of a honeycomb sandwich panel, which comprises a positioning clamping structure, the positioning clamping structure is provided with an upper end part supporting clamp module and a lower end part supporting clamp module, the lower end part supporting clamp module and the upper end part supporting clamp module are internally provided with clamping assemblies, and the upper end part supporting clamp module and the lower end part supporting clamp module are internally provided with clamping assemblies. The containing cavity is used for containing a honeycomb sandwich plate tested piece, and the upper end supporting clamp module and the lower end supporting clamp module are each provided with an accurate marking and reading structure used for measurement. Through the accurate marking and reading structure and the positioning and clamping structure, the device is suitable for universal honeycomb sandwich plate mechanical experiment specifications, multi-degree-of-freedom fitting, clamping and locking are conducted on a honeycomb sandwich plate, mechanical load loading failure is avoided, and digital scales, 0-position marks and the cylindrical surface of the end supporting seat are not prone to falling off. The centering performance of the mechanical load applied to the honeycomb sandwich plate can be adjusted and checked.

Description

technical field [0001] The invention relates to the technical field of lateral pressure performance testing of satellite honeycomb sandwich panels, in particular to an adjustable device for testing the lateral pressure performance of honeycomb sandwich panels. Background technique [0002] The honeycomb sandwich panel structure is widely used in the structural design of aerospace products because of its high specific stiffness, high specific strength, heat insulation and shock absorption. Due to the unstable and controllable operating factors in the manufacturing process of honeycomb sandwich panels, when each batch of honeycomb sandwich panels is cured at high temperature according to the design size and process requirements, a piece of honeycomb sandwich panel specimen will be cured and tested according to the mechanical test. The size standard of the test piece is used to cut and prepare the tested test piece with the furnace. The purpose is to verify the mechanical prop...

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Problems solved by technology

[0005] Patent document CN106896023A discloses a composite material plate structure lateral pressure test fixture. The design of this composite material plate structure lateral pressure test fixture has an over-constraint clamping design of the test tooling, which makes the honeycomb sandwich plate specimen prone to buckling, and then makes the test The precision of the structure affects the

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