Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Multi-cell metal-based carbon fiber composite thin-walled energy absorbing structure and preparation technique thereof

An energy-absorbing structure and carbon fiber technology, applied in bumpers and other directions, can solve the problems of deformation coordination and low guiding energy-absorbing structure, and achieve the effects of strong deformation coordination and guidance, light structure and flexible design scheme.

Pending Publication Date: 2018-09-28
DALIAN UNIV OF TECH
View PDF14 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the deformation coordination and guidance of the energy-absorbing structure made of all-carbon fiber materials is lower than that of the energy-absorbing structure made of ductile metal

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Multi-cell metal-based carbon fiber composite thin-walled energy absorbing structure and preparation technique thereof
  • Multi-cell metal-based carbon fiber composite thin-walled energy absorbing structure and preparation technique thereof
  • Multi-cell metal-based carbon fiber composite thin-walled energy absorbing structure and preparation technique thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0052] This embodiment mainly relates to the effect of the number of carbon fiber inner tubes in the multicellular metal-based carbon fiber composite thin-wall energy-absorbing structure on the energy-absorbing effect.

[0053] The multicellular metal-based carbon fiber structure is composed of a 6061-T4 aluminum alloy outer tube and a carbon fiber inner tube. Specifically, it can be divided into three different design schemes: scheme A, scheme B, and scheme C.

[0054] Among them, the height I38 of the multicellular structure I37 in scheme A is 80mm, the number of carbon fiber inner tubes I"40 in the multicellular structure I37 is N=3, and the thickness of the aluminum alloy outer tube I"39 in the multicellular structure I37 is 2mm. The outer diameter I'41 of the aluminum alloy outer tube I"39 is 58mm, such as image 3 (a) shown.

[0055] In plan B, the height II45 of the multicellular structure II44 is 100mm, the number of carbon fiber inner tubes II"47 in the multicellular...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a multi-cell metal-based carbon fiber composite thin-walled energy absorbing structure and a preparation technique thereof. The energy absorbing structure is mainly in the structural form that inner tubes are wrapped with outer tubes in a nested mode, wherein the structural form is formed by matching and combining the outer tubes constituted by metal tubes or metal-based carbon fiber composite tubes, and the inner tubes constituted by a plurality of carbon fiber tubes or the metal-based carbon fiber composite tubes; the outer walls of the multiple inner tubes are mutually connected in modes of bonding or being supported through metal brackets to form a multi-cell structure; and then the multi-cell structure is connected with the inner walls of the outer tubes throughbonding. The multi-cell metal-based carbon fiber composite thin-walled energy absorbing structure has the advantages of large specific energy absorption, high deformation coordination and guidance, flexible design scheme and the like, the weight of the energy absorbing structure can be decreased, the collision safety of the energy absorbing structure can further be improved, and the targets of safety and light weight of an automobile are effectively achieved. The preparation technique is less in machining step and short in machining time and is suitable for mass production.

Description

technical field [0001] The invention relates to the related fields of automobile manufacturing and automobile collision safety, and in particular to a multicellular metal-based carbon fiber composite thin-wall automobile anti-collision energy-absorbing structure and a preparation process thereof. Background technique [0002] Lightweight design and collision safety are the two eternal goals pursued by the automobile industry. The energy-absorbing structure of automobiles must not only meet the requirements of sufficient specific energy-absorbing capacity, but also meet the characteristics of light weight, so as to achieve the goal of energy saving and emission reduction. , so its structural design is particularly important in the automotive industry. The anti-collision energy-absorbing structure of the car is mainly the energy-absorbing box connected to the front anti-collision beam of the car. At present, most of the materials of the anti-collision energy-absorbing structur...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B60R19/02B60R19/03B60R19/34
CPCB60R19/02B60R19/03B60R19/34
Inventor 盈亮高天涵戴明华侯文彬胡平
Owner DALIAN UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products