High-speed EMU composite material underbody equipment cabin floor

Abstract

The invention provides a high-speed motor car composite material bottom equipment cabin bottom plate, which includes an outer skin, an inner skin, a middle foam interlayer and a hook. Both the outer skin and the inner skin are made of carbon fiber twill fabric and carbon fiber unidirectional fabric. Formed by vacuum introduction process, the middle foam interlayer is made of PVC sandwich foam as raw material and formed by vacuum introduction process, PVC sandwich foam includes foam body part and edge part located at the edge of the body part; outer skin, inner skin, middle foam The common end of the interlayer is provided with a hook. The process is easy to operate and a manufacturing method with a short manufacturing time. The inner skin, outer skin and foam sandwich of the carbon fiber composite material equipment bilge are all formed by vacuum introduction at one time.

Description

technical field [0001] The invention relates to a high-speed bullet train composite bottom equipment cabin bottom plate. Background technique [0002] With the rapid increase in the operation speed of domestic trunk railways and urban light rail, higher design standards have been put forward for vehicle lightweight and safe operation performance. The undercarriage beam place of existing rail vehicle is generally provided with equipment cabin, to set up wire groove, wire pipe and most of the undercarriage equipment in other trains inside the closed space of equipment cabin. When the train runs at high speed, it will generate a strong air pressure wave, so that small stones, ice cubes or other objects near the bottom of the train and the track will be sucked up, and these objects will hit the equipment installed under the train, endangering The safety of train operation, especially for high-speed EMU trains, this hazard will be greater. [0003] At present, in order to prote...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a light-weight high-strength composite vehicle bottom equipment cabin floor to solve the problem of existing equipment cabin floor with heavy weight, complex load conditions, easy panel degumming, and severe temperature changes. There will be a lot of thermal stress on the inner side, which will cause the problem of debonding of the bottom plate of the equipment compartment

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