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Negative-Gaussian-curvature curved surface energy absorption structure

A technology of Gaussian curvature and energy-absorbing structure, which can be used in bumpers and other directions to solve problems such as poor energy-absorbing effect.

Pending Publication Date: 2022-02-11
YANGTZE DELTA REGION INST OF UNIV OF ELECTRONICS SCI & TECH OF CHINE HUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies in the prior art, the present invention provides a negative Gaussian curvature surface energy-absorbing structure to solve the problem that the conventional energy-absorbing box structure has poor energy-absorbing effect during use

Method used

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  • Negative-Gaussian-curvature curved surface energy absorption structure
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  • Negative-Gaussian-curvature curved surface energy absorption structure

Examples

Experimental program
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Embodiment 1

[0037] This embodiment is basically as figure 1 , attached figure 2 , attached image 3 And attached Figure 4 As shown, the embodiment of the present invention proposes an energy-absorbing structure with a negative Gaussian curvature surface, including an energy-absorbing pipe 10 and a connecting unit. The two Bezier curves arranged symmetrically on the vertical axis of the energy-absorbing pipe 10 make the energy-absorbing curved surface a negative Gaussian curvature surface 101, which is a single-leaf hyperboloid, and the energy-absorbing pipe 10 is made of model DP390 or DP490 dual-phase steel, or made of 6000 series aluminum alloy with type 6082 or 6005; figure 1 As shown, the side wall of the energy-absorbing pipe 10 is penetrated with several cylindrical induction grooves 102. When the energy-absorbing pipe 10 collapses under impact force, the induction grooves 102 can make the structural deformation of the energy-absorbing pipe 10 more controllable.

[0038] like ...

Embodiment 2

[0050] The difference between embodiment 2 and embodiment 1 is basically as attached Image 6 and Figure 7 As shown, the difference from the energy-absorbing pipe 10 in Embodiment 1 is that the inner wall of the energy-absorbing pipe 10 in Embodiment 2 is pseudo-spherical, so that the Bezier curve at the longitudinal section of the energy-absorbing pipe 10 fits the Bezier curve Bus Comparison Example Attached Figure 7 As shown, at the same time, the induction groove 102 on the side wall of the energy-absorbing pipe 10 is in the shape of a square, and the square-shaped induction groove 102 is arranged on the side wall of the energy-absorbing pipe 10 .

Embodiment 3

[0052] The difference between embodiment 3 and embodiment 1 is basically as attached Figure 8 and Figure 9 As shown, the difference from the energy-absorbing pipe fitting 10 in Embodiment 3 is that the inner wall of the energy-absorbing pipe fitting 10 in Embodiment 3 is a catenary surface, so that the Bezier curve at the longitudinal section of the energy-absorbing pipe fitting 10 is similar to the Bezier curve The comparison of combined busbars is attached Figure 9 As shown, the induction groove 102 on the energy-absorbing pipe 10 is located at the top of the energy-absorbing pipe 10 at the same time.

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Abstract

The invention relates to the field of collision avoidance and energy absorption, and particularly discloses a negative-Gaussian-curvature curved surface energy absorption structure which comprises an energy absorption pipe fitting, the inner wall of the energy absorption pipe fitting is an energy absorption curved surface, the longitudinal section contour lines of the energy absorption curved surface are two Bezier curves symmetrically arranged along the vertical axis of the energy absorption pipe fitting, and the energy absorption curved surface is a negative-Gaussian-curvature curved surface. According to the scheme, the energy absorption pipe fitting with the Gaussian curvature curved surface has the advantages of being high in structural strength and deformation resistance, impact energy can be effectively absorbed when a vehicle is impacted, damage to a vehicle body is reduced, and a driver and passengers are protected; and meanwhile, the energy absorption pipe fitting is simple in structure, mature in manufacturing process, low in cost, safe and reliable.

Description

technical field [0001] The invention relates to the technical field of anti-collision energy absorption, in particular to an energy-absorbing structure with a negative Gaussian curvature surface. Background technique [0002] With the increase of my country's automobile production and sales year by year, the traffic safety problem in the process of automobile driving has become one of the important issues facing the development of my country's automobile industry. A conventional car is equipped with a bumper system consisting of a bumper and an energy-absorbing box. When the car is hit, the bumper and the energy-absorbing box can absorb energy through plastic buckling to alleviate the impact of the collision on the occupants, pedestrians and key parts of the car body. harm. [0003] However, the cross-section of conventional energy-absorbing boxes is mostly triangular, quadrilateral, pentagonal or hexagonal. When a triangular, quadrilateral, pentagonal or hexagonal energy-a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R19/34
CPCB60R19/34
Inventor 张慧乐马梓鸿李世康梁炯炯汪忠来
Owner YANGTZE DELTA REGION INST OF UNIV OF ELECTRONICS SCI & TECH OF CHINE HUZHOU