Bionic energy absorption pipe of bamboo-like structure

An energy-absorbing tube and bionic technology, which is applied in the field of bionic energy-absorbing tubes, can solve the problems of small energy absorption, and achieve the effects of improving specific energy absorption, increasing bearing capacity, and improving the ability to absorb energy in the axial direction

Inactive Publication Date: 2012-12-19
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a bionic energy-absorbing pipe with a bamboo imitation structure with a larger speci

Method used

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  • Bionic energy absorption pipe of bamboo-like structure
  • Bionic energy absorption pipe of bamboo-like structure
  • Bionic energy absorption pipe of bamboo-like structure

Examples

Experimental program
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Effect test

Embodiment

[0021] The length of the cylindrical outer tube 1 is 300 mm, the diameter of the cylindrical outer tube 1 is 80 mm, and the wall thickness of the cylindrical outer tube 1 is 1.5 mm.

[0022] Constraint circles 2 are evenly distributed on the cylindrical outer tube 1, the outer diameter of the confinement circle 2 is 86mm, the inner diameter of the confinement circle 2 is 72mm, the distance between adjacent confinement circles 2 is 120mm, and the wall thickness of the confinement circle 2 is 3mm .

[0023] The distribution density of the constrained beams: ρ=n / 2πR

[0024] Among them, ρ represents the density of the bionic fiber bundle constrained beam, n represents the number of constrained beams in each layer, and R represents the radius of the circle where the center of the constrained beam is located.

[0025] Constraining beam 4 is circular tube shape, and circular tube external diameter is 3.5mm, and internal diameter is 2.5mm.

[0026] The axial restraint beam 4 is div...

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Abstract

The invention discloses a bionic energy absorption pipe of a bamboo-like structure, comprising a cylindrical outer pipe, a plurality of restraining rings, a plurality of restraining walls and a plurality of restraining beams, wherein the plurality of restraining rings are equidistantly arranged on the cylindrical outer pipe, each restraining wall is cylindrical, the plurality of restraining walls are sleeved in the cylindrical outer pipe, the plurality of restraining beams are arranged between the cylindrical outer pipe and the restraining walls and between the adjacent restraining walls, each restraining beam is connected with the adjacent two restraining walls through two supporting plates, and the restraining beams are in shapes of circular tubes; and the distribution density rho of the restraining beams is equal to n/2paiR, the rho represents the density of the restraining beams, the n represents the number of each layer of the restraining beams, and the R represents the radius of a circle in which the centers of the restraining beam are located. The bionic energy absorption pipe disclosed by the invention improves the capability of axially absorbing energy, namely improving the SEA (specific energy absorption), and also improving the transverse bearing capability.

Description

technical field [0001] The invention relates to an energy-absorbing structure, in particular to a bionic energy-absorbing pipe imitating a bamboo structure. Background technique [0002] All kinds of vehicles need anti-collision devices, and the existing energy-absorbing protective devices have poor energy-absorbing effect, and the specific energy-absorbing is relatively small, and the specific energy-absorbing is the energy-absorbing size of the energy-absorbing structure per unit weight. Contents of the invention [0003] The purpose of the present invention is to provide a bionic energy-absorbing tube with a bamboo imitation structure with a larger specific energy absorption in order to solve the problem that the existing energy-absorbing structure has a relatively small energy-absorbing ratio. [0004] According to the macroscopic and microscopic structure of the bamboo in the radial and axial directions, the present invention extracts the structural characteristic par...

Claims

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Application Information

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IPC IPC(8): B60R19/02
Inventor 邹猛魏灿刚赵振家刘国敏李建桥许述财张金换章雄
Owner JILIN UNIV
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