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Array type metal cup-shaped thin wall structure energy absorber

A thin-walled structure and metal cup technology, which is applied to elastic shock absorbers, railway car body parts, bumpers, etc., can solve problems such as large impact force, and achieve the effects of stable impact force, good protection, and high working reliability

Inactive Publication Date: 2009-04-22
HARBIN INST OF TECH
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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 solve the problem that the existing combined energy absorber filled with porous materials such as aluminum honeycomb and foamed aluminum in thin-walled cylindrical tubes has a large impact force at the initial stage of buffering, and after this stage, the buffering To solve the problem that the force will tend to be stable, an array type metal cup-shaped thin-walled structure energy absorber is provided

Method used

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  • Array type metal cup-shaped thin wall structure energy absorber
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  • Array type metal cup-shaped thin wall structure energy absorber

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specific Embodiment approach 1

[0006] Specific implementation mode one: (referring to Fig. 1~ Figure 4 ) This embodiment includes a thin-walled metal plate 1, and a plurality of cup-shaped protrusions 2 are stamped on the same side of the thin-walled metal plate 1, and the plurality of cup-shaped protrusions 2 are distributed in an array. The cross-sectional shape of the cup-shaped protrusions 2 is circular, and each cup-shaped protrusion 2 is a sub-energy absorber.

specific Embodiment approach 2

[0007] Specific embodiment two: (see Fig. 1) a plurality of cup-shaped protrusions 2 of this embodiment are arranged evenly in the horizontal and vertical directions on the thin-walled metal plate 1, and the energy absorbed by the energy absorbers is equal to that of each sub-absorber. The sum of the energy absorbed by the energy device. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0008] Specific embodiment three: (see Fig. 3) a plurality of cup-shaped protrusions 2 of this embodiment are dislocated and distributed on the same thin-walled metal plate 1, and the energy absorbed by the energy absorber is equal to the sum of the energy absorbed by each sub-energy absorber , due to the dislocation arrangement, compared with the specific embodiment 1, this embodiment can arrange more sub-energy absorbers, so that its energy absorption capacity is stronger. Others are the same as in the second embodiment.

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Abstract

The invention provides an array-type metal thin-wall cup-shaped structural energy absorber, relates to an energy absorber, and aims at solving the problems that the existing combined energy absorbers the thin-wall cylindrical tubes of which are filled with porous materials such as aluminum honeycomb, foamed aluminum and the like has very big impact at the initial stage of buffer and the buffer force tends to be stable after the stage. The energy absorber comprises a thin-wall metal plate (1) and a plurality of cup-shaped projections (2) which are stamped at the same side of the thin-wall metal plate (1) and take array distribution. The thin-wall cup-shaped structural form with variable cross-section causes the impact force of the energy absorber to be more stable, thus a protected object can be under very good protection. The energy absorber has high working reliability; as the energy absorber can be divided into the form of combining a plurality of sub-energy absorbers, thus the energy absorber has higher working reliability. The energy absorber can be applied to the fields of automobile safety and structural crash worthiness of high-speed trains.

Description

technical field [0001] The invention relates to an energy absorber. Background technique [0002] The metal thin-walled structure is a traditional energy-absorbing structure, and it is also one of the most widely used buffering energy-absorbing structures. However, during the impact process of the thin-walled metal cylindrical tube as an energy absorber, its load fluctuates greatly, so that the protected object will be damaged. Unstable impact load, and the energy absorbed per unit volume is small. Aluminum honeycomb and aluminum foam energy absorbers have the advantages of simple structure, high specific energy absorption, relatively stable impact load and recyclability, and are widely used in the fields of structural crashworthiness and other fields. However, compared with the combined energy absorber, the specific energy absorption of the above two types of energy absorbers is relatively small, which is not conducive to the lightweight and miniaturized design of the ener...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F7/12B60R19/03B61F11/00
Inventor 刘荣强邓宗全罗昌杰周安亮李萌
Owner HARBIN INST OF TECH
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