Structure and manufacturing process of low-cost carbon fiber composite material sky railway train body

Abstract

The invention discloses a structure and a manufacturing process of a low-cost carbon fiber composite material sky railway train body, and belongs to the technical field of application of composite materials on rail vehicles. The structure comprises a train body side wall, wherein end walls are assembled and connected to the both ends of the train body side wall; a top frame and a bottom frame arecorrespondingly assembled and connected to the inner top surface and the inner bottom surface of the train body side wall, a ceiling is assembled and connected to the outer top surface of the train body side wall, and a bogie mounting hole is formed in the ceiling; the train body side wall and the end walls both comprise reinforced rib frames, inner skins and outer skins, and grids of the reinforcing rib frames are filled with sandwich foam blocks; the ceiling comprises a sandwich panel, an upper skin and a lower skin, and the top frame, the bottom frame, the reinforcing rib frame, the inner skins, the outer skins, the upper skin and the lower skin are all integrally molded from carbon fiber composite materials; and the inner portions of the reinforcing rib frames are filled with sandwichfoam, and the purpose of satisfying the function and structure of the load bearing mode of a suspension-type train body on the premise of light weight of the train body is achieved.

Description

technical field [0001] The invention belongs to the technical field of application of composite materials on rail vehicles, and in particular relates to the field of suspended rail vehicles, in particular to the structure and manufacturing process of a low-cost carbon fiber composite material rail car body. Background technique [0002] At present, domestic research on carbon fiber composite car bodies is still in its infancy. At this stage, composite materials are only used to replace some non-stressed parts. The existing standard EMU CFPR equipment compartment has realized the structural integration. Compared with Aluminum alloy structure, CFRP equipment compartment weight reduction of 35%, trains using this standard EMU CFPR equipment compartment have been shipped in June 2015. In December 2011, the 500km / h high-speed test vehicle completed in China adopted a carbon fiber composite material head cover. The cab of the Shanghai Maglev train is the world's largest single-pi...

AI Technical Summary

Problems solved by technology

[0005] (1) Strictly speaking, the middle skeleton of the carbon fiber composite car body currently developed still adopts a fully welded aluminum alloy frame structure, not an all-carbon fiber composite car body, and there are problems such as deformation mismatch between non-metallic materials and metal materials. ;

[0006] (2) The weight loss of the existing full carbon fiber composite subway car body is not obvious, the cost is high, and the commercial operation is difficult;

At this stage, there is no carbon fiber composite body for the suspended empty rail car

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