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Vehicle body skirt plate structure for rail traffic vehicle and shaping method thereof

A rail transit vehicle and forming method technology, applied in the field of rail transit vehicle body skirt plate structure and its forming, can solve problems such as not being able to meet the needs of high-speed passenger cars, and achieve good rigidity, small internal stress, and good thermal expansion matching performance Effect

Active Publication Date: 2019-01-25
AEROSPACE RES INST OF MATERIAL & PROCESSING TECH +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing aluminum alloy aprons can no longer meet the needs of high-speed passenger cars

Method used

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  • Vehicle body skirt plate structure for rail traffic vehicle and shaping method thereof
  • Vehicle body skirt plate structure for rail traffic vehicle and shaping method thereof
  • Vehicle body skirt plate structure for rail traffic vehicle and shaping method thereof

Examples

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Embodiment Construction

[0039] The specific implementation manners of the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0040] see figure 1 with 2 , the embodiment of the present invention provides a rail transit vehicle body skirt structure, including an outer panel 1, a load-bearing frame 2, an inner panel 3 and a honeycomb core 4, such as image 3 As shown, the load-bearing frame 2 includes an upper end frame 21, a lower end frame 22 and a reinforcing rib 23 arranged between the upper end frame 21 and the lower end frame 22, and the load-bearing frame 2 is covered by a fiber-reinforced resin-based composite material in a foam. The outer panel 1 and the inner panel 3 are both made of fiber-reinforced resin-based composite materials, and the load-bearing frame 2, outer panel 1 and inner panel 3 are stacked and fixedly connected in sequence, as image 3 As shown, the load-bearing frame 2 divides the interlayer b...

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Abstract

The invention provides a vehicle body skirt plate structure for a rail traffic vehicle and a shaping method thereof, and belongs to the technical field of composite material structure shaping. The skirt plate structure comprises an outer panel, a force bearing framework, an inner panel and honeycomb cores, wherein the force bearing framework comprises an upper end frame, a lower end frame and reinforcing strips arranged between the upper end frame and the lower end frame; the force bearing framework is made of a material of a structure coating a foam inner core by a fiber enhanced resin-basedcomposite material; the outer panel and the inner panel are made of fiber enhanced resin-based composite materials; the outer panel, the force bearing framework and the inner panel are sequentially overlapped and are fixedly connected; the force bearing framework separates a sandwich layer between the outer panel and the inner panel into a plurality of regions; the honeycomb cores are filled in the plurality of regions. The skirt plate structure has the characteristics of good rigidity, impact resistance, fatigue resistance and the like; meanwhile, the weight of the whole skirt plate can be reduced by about 30 percent.

Description

technical field [0001] The invention relates to a car body skirt plate structure of a rail transit vehicle and a forming method thereof, and belongs to the technical field of composite material structure forming. Background technique [0002] The rail transit car body skirt is located under the side wall of the car body. Because the car body skirt has a certain curved shape and a large size, it is difficult to form, and it is easy to deform during the manufacturing process and the size is unstable. Aluminum alloy material is the main material. [0003] During the operation of a high-speed passenger car with a speed of 400 kilometers per hour, the stress conditions are more complicated and the operating conditions are more severe. Weight reduction puts higher demands on it. Existing aluminum alloy skirt boards can no longer meet the needs of high-speed passenger cars. Contents of the invention [0004] Aiming at the problems existing in the prior art, the present inventi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B3/12B32B15/08B32B15/20B32B27/00B32B27/06B32B27/08B32B27/10B32B27/20B32B29/00B61D17/08
CPCB32B3/12B32B15/08B32B15/20B32B27/00B32B27/06B32B27/08B32B27/10B32B27/20B32B29/00B61D17/08
Inventor 栾贻浩李言金鑫李明唐占文周宇凌辉
Owner AEROSPACE RES INST OF MATERIAL & PROCESSING TECH
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