Single bar structure, lattice single-cell honeycomb structure and preparation method of single bar structure

Abstract

The invention provides a single bar structure, a lattice single-cell honeycomb structure and a preparation method of the single bar structure. The single bar structure comprises a batten which is tabulate. At least one pair of round pipes is arranged on the batten. The central axes of the round pipes are located on the plane of the batten. The two ends of each round pipe are located at the two ends, in the width direction, of the batten respectively. Due to the fact that the single bar structure is provided with the at least one pair of round pipes, the strength of the single bar structure applied to a core material of a sandwich structure is improved, and the shock resistance of the single bar structure is improved; when the single bar structure is applied to the sandwich structure, a dynamic impact load can be well borne, the good instability resistance is achieved, and thus the sandwich structure can well absorb impact energy.

Description

technical field [0001] The invention relates, in particular, to a preparation method of a single structure, a lattice unit cell honeycomb structure and a single structure. Background technique [0002] Sandwich structures are often used on aircraft floors, train floors, and train seats to reduce the weight of aircraft, trains, etc. Sandwich structures require a core material for manufacture. In the prior art, the core material of the sandwich structure generally adopts hexagonal honeycomb or square honeycomb structure, wherein the hexagonal honeycomb structure includes a honeycomb structure, and the honeycomb structure is a plate-shaped board, along the length direction of the board, sequentially set on the board The bending part is composed of three sides of a hexagon; two honeycomb substructures are arranged up and down to form a hexagonal honeycomb structure; the hexagonal honeycomb structure has a plurality of honeycomb holes. [0003] However, in the prior art, when t...

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Problems solved by technology

[0004] The present invention provides a single-strip structure, lattice unit cell honeycomb structure and a preparation method of a single-strip structure, which are used to solve the poor anti-instability of the wall panels of the honeycomb structure that is prone to occur when the honeycomb structure is subjected to dynamic impact loads in the prior art , which in turn will lead to the problem that the sandwich structure cannot absorb the impact energy well

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